Lithium-ion battery safety 101

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Dimbo The Blinky
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HereAgainAgain wrote:
DavidEF wrote:
Oh wait, as long as we’re allowed to be ‘picky’ here, it should be cell/cells rather than battery/batteries. Wink

And not to be a knob,but what’s the difference? That’s one thing I’ve never seen explained.


A Battery is composed of Cells.

Take a 9v Alkaline apart to see it in your own hands. What we call “packs” of 18650s, technically, are “batteries”. (So yes, IMNERHO, saying “battery pack” is just like saying “Sahara Desert”…)

If you take a cell apart, you’ll find goo (electrolyte) and guts (anode and cathode materials), but if you take a battery apart, you’ll just find cells.

“There is no darkness but ignorance.”

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Dimbo The Blinky wrote:
If you take a cell apart, you’ll find goo (electrolyte) and guts (anode and cathode materials), but if you take a battery apart, you’ll just find cells.

depends how far apart, if you keep going you get the same as the cell

just ribbing ya Big Smile

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

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The Miller wrote:
This should be translated so as much nationalities can read up.
Roger that, Your Typographical Highness!

Here is is in Icelandic:
===================
Lithium-jón öryggi rafhlaða 101

Lithium-jón öryggi rafhlaða

hvatning:

Margir af vasaljós rætt / umsögn / modded í Budget Light Forum (BLF) nota litíum-ion rafhlöður. Notkun litíum-jón rafhlöður er að kynna nokkrar áhættu, og krefst meira en Varúðarráðstafanir alkaline rafhlöður. En eins og allir tól, Þegar það er notað á réttan hátt, áhættan er hægt að stjórna og minnka.

Markhópur:

Þessi færsla lýsir Öryggisráðstafanir fyrir notendur gerðu eru að litíum-rafhlöður. Það þýðir ekki að reyna að afla a heill einkatími um rafhlöður litíum-né tæknilegum ástæðum Li-jón hættum. Það er ætlað sem útgangspunkt.

Það verður alltaf einhver ágreiningur um reglur um öryggi. Sumir reglur ritgerð um öryggi kann ekki við Þeir sem voru Lab aðstoðarmenn til Dr. Goodenough (hlekkur er ytri), en vonandi Þeir eru viðeigandi fyrir nýrri notendur. Þú þarft að vera meðvitaðir um þekkingu og reynslu þína.

Lithium-jón hleðslurafhlöðum er óhætt að nota þegar notað á réttan hátt.
Lithium-jón hleðslurafhlöðum getur verið hættulegt Þegar óviðeigandi notuð.

Kaupa góða rafhlöður. Saving nokkrar smáaurarnir á hvað getur verið varasamt rafhlöður er ekki þess virði. Sumir ódýrari rafhlöður geta verið fölsun eða kunna að endurvinna / endurheimta. https://batterybro.com/blogs/18650-wholesale-battery-reviews/18852875-re... (Link er ytri) http: //www.theepochtimes.com/n3/1421555-chinas-sloppy-battery-industry-t … (tengill er ytri) Reyndir notendur gera uppskeru rafhlöður frá rafhlaða bakpoki. Bíddu þar til þú hefur meiri reynslu af Li-jón áður en þú reynir. http://budgetlightforum.com/node/32720 Rafhlaða umsagnir. http://budgetlightforum.com/forum/batteries/rechargeable/reviews http://budgetlightforum.com/forum/batteries/rechargeable http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html (tengill er ytri) Kaupa gæði hleðslutæki. Þetta er annar staður að fara ekki ódýr leið. An undir sig klefi geta vera öruggur í góðu hleðslutæki en ekki klefi er öruggt í fátækum hleðslutæki. (SawMaster) Lestu umsagnir. Kaupa vörumerki með góðu endurskoðun. Atriði sem þarf að íhuga: Overcharge vernd. Reverse pólun vernd. Sjálfstæðum rásum svo þú geta ákæra öðruvísi rafhlaða tegundir eða útskrift stigum á Sametime. Notendaviðmót gerði gefur þér það sem þú vilt. Gaumljós vs LCD skjá. Hleðslutækið shoulderstand gjald á 4.2V +/- 0.05V, en rafhlaðan getur komið burt á mismunandi spennu. http://budgetlightforum.com/node/45344 Charger umsagnir. http://budgetlightforum.com/forum/batteries/chargers/reviews http://budgetlightforum.com/forum/batteries/chargers http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html (tengill er ytri) Kaupa og nota multi-metra. Margir eins og stafrænn multi-metra (DMM). Lærðu að athuga litíum þitt ion rafhlöður spennu. http://www.lygte-info.dk/info/Measurement%20UK.html (tengill er ytri) Athugið: Ekki allir sammála þú þarft DMM, en margir mæla með þeim. Hleðsla / afhleðsla Rafhlöður má greiða á: 0 * C – 45 * C (32 * F – 113 * F) Rafhlöður má tæmd á -20 * C – 60 * C (-4 F * – 140 * F) http: //batteryuniversity.com/learn/article/charging_at_high_and_low_temp … (tengill er ytri). Ekki overcharge ekki rafhlöður. Max spenna shoulderstand vera 4.2V. Aðeins hleðslan 4.1V getur gefið þér fleiri endurhlaða hringrás. Góð hleðslutæki kemur í veg fyrir yfir hleðslu. Rafhlaða hleðslutæki heimilt að innheimta +/- 0.05V og enn vera í umburðarlyndi. http://budgetlightforum.com/node/45344 Eftir hleðslu athuga spennu rafhlöðunnar þinnar með DMM þitt eftir stuttan (~ 5 mín) hvíld. http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries (tengill er ytri) Ekki overdischarge ekki rafhlöður. Margir kjósa að endurhlaða rafhlöður Þegar þeirra ná 3.5- 3.6V Rafhlöður eru tæma Þegar þeir Nær 2.7-3.0v. Endurhlaða. Rafhlöður byrja að þjást skemmdir ef losað í 2,5 volt. Rafhlöður ætti að farga Ef þeir liggja að 2,0 volt. Ekki hlaða ekki rafhlöður Þegar hitastigið er undir frostmarki. (0 * C / 32 * F) Ekki láta rafhlöður fá of heitt. Ef þú ert að fara að geyma vasaljós í bílnum í sumar, eru fyrst og fremst rafhlöður mælt yfir litíum-jón hleðslurafhlöðum. Hátt hitastig draga frumur hraðar, en svo lengi sem afleysingamanneskja er minna en 60 * C (140 * F) það er sennilega ekki öryggi tölublað. http://budgetlightforum.com/node/42497 http: //batteryuniversity.com/learn/article/charging_at_high_and_low_temp … (tengill er ytri). Fyrir langtíma geymslu (mánuðir) það er best að geyma að minnsta 40-50% getu. (3.77-3.87V) http://batteryuniversity.com/learn/article/how_to_store_batteries (tengill er ytri) Þegar það er ekki í vasaljós, rafhlöður shoulderstand alltaf vera í hlífðar burðarefni. Þetta ver frá shorting og líkamlegum skaða. Aldrei bera lausa rafhlöður í vasa eða tösku. https://www.youtube.com/watch?v=k1LjSuq0rk8 (hlekkur er ytri) <== Ekki nota rafgeyma með líkamlegum skaða. Vernduð rafhlöður eru gen fylkja öruggari en varnarlausa rafhlöður. Vernduð rafhlöður hafa hringrás innbyggður í sem ver frá yfir-hleðslu og yfir-sinnt. Verndun hringrás auka lengd og breidd á rafhlöðunni örlítið. Vernduð rafhlöður mun ekki passa í allar vasaljós. Vita vasaljós. Sumir vasaljós með lág spenna verndun og mun skera burt á lágu spennu. Vita vasaljós. Sum hár Draw vasaljós mun ferð verndun hringrás í rafhlöðu verndað og varnarlausa þurfa rafhlöður. Vita vasaljós. Multi-rafhlaða vasaljós hafa meiri hættu en einn rafhlaða vasaljós. Ef bara að byrja út að þú vilt kannski að takmarka sjálfur til einn rafhlaða vasaljós. Þegar þú notar multi-rafhlaða ljós, að draga úr líkum á ójöfnu rennsli milli rafhlöður, það er mikilvægt gerði öllum rafhlöður: eru þau sömu tegund, eru þau sömu framleiðslu, hafa sömu getu (Ah) eru innheimt á sama spennu. Þú vilt kannski að merkja rafhlöður svo þú-getur notað sama mengi saman yfirvinnu. Hlaða rafhlöður í stað þar sem það eru ekki eldfim efni. Setja hleðslutækið þitt á borðið, ekki á sófanum þínum. Aldrei láta hlaða rafhlöður eftirlitslaus. Athugaðu þá reglulega til að ganga úr skugga um að þeir eru ekki að fá heitt. Warm er allt í lagi. Ath: það eru mismunandi skoðanir um hvernig oft þú þarft að athuga. http: //www.local10.com/news/local-10-investigates/lithium-ion-battery-bu … (tengill er ytri) Skemmd rafhlöður geta valdið eldsvoða!

“Misnotkun skilyrði:.. eins og overcharge, yfir-útskrift og innri skammhlaup getur leitt til rafhlaða hitastig langt umfram framleiðanda einkunnir Á markhitastigið, keðju útvermnum viðbrögð geta verið af stað Viðbrögð leiða til frekari hlýnun, sem í snúa hraðar efnahvörfum lyfjahvörf. Þessi skelfilegar sjálf-hraða niðurbrot Li-jón rafhlaða er kallað varma runaway.2 “(tengill er ytri)

“Á varma Runaway, Hitastig eins hátt og 900 ° C er hægt að ná, 3 (tengill er ytri) og rafhlaðan getur losað umtalsvert magn af burnable og (ef andað í háum styrk) eitrað gas.4” (tengill er ytri)

Royal Society of Chemistry http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f~~HEAD=pobj (tengill er ytri)

Í the atburður af a litíum-jón rafhlaða bruna leita læknis strax. Burning eða loftun litíum-jón rafhlöður framleiða vetni úr vetni flúoríð fluoride.Symptoms meiðsli eru ekki strax í ljós. “The rafhlaða getur losað umtalsvert magn af burnable og (ef andað í háum styrk) eitrað gas.4” (tengill er ytri) Royal Society of Chemistry http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f~~HEAD=pobj (tengill er ytri) Leitið læknis strax. Ekki bíða þangað til þú finnur fyrir einkennum. http: //www.candlepowerforums.com/vb/showthread.php 141137 andað-gufur … (tengill er ytri) !!!? Það eru blönduð skoðanir á með seglum að búa button-boli úr íbúð-toppur rafhlöður. Ekki fá rafhlöður blautur. Ekki brenna rafhlöður. Farga skal rafhlöðum almennilega. Það er ekki óhætt að borða Lithium-Ion rafhlöður.

Nánar lesa um Lithium Ion rafhlöður:

Litany fyrir byrjendur: http://budgetlightforum.com/comment/904373#comment-904373 Leita staða fyrir “öryggi” – http://budgetlightforum.com/node/26665 Li-jón Rafhlaða Safety og Shopping Guide – http://budgetlightforum.com/node/16699 Li-jón Safety Áhyggjuefni – http://batteryuniversity.com/learn/article/lithium_ion_safety_concerns (tengill er ytri) Lithium undirstaða rafhlöður – http://batteryuniversity.com/learn/article/lithium_based_batteries (tengill er ytri) Tegundir Lithium Ion – http://batteryuniversity.com/learn/article/types_of_lithium_ion~~pobj (tengill er ytri) Vinsamlegast láttu mig vita hvað ég hef misst eða hvað ég hef fengið rangt.

Takk!

Rafhlaða tækni breytist ört. Vinsamlegast athugaðu dagsetninguna breyta neðan.

Ég givin ‘henni allt sem hún fékk, Captain!
Breytt af: Mr.Scott á 03/07/2016 – 18:46
=========================

Who else wants to rock Google Translate for a few minutes?
(PS: The layout looks fine in the Editor Window, but not in the Preview. Posting to Know For Sure…)
(PPS: Yep. Looked fine in Google Translate (I translate back & forth to make sure), looked fine (for Icelandic) in the Editor window, looks like crap on Preview and Save. Sorry…)

“There is no darkness but ignorance.”

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Dimbo The Blinky wrote:
Bort wrote:
Dimbo The Blinky wrote:
If you take a cell apart, you’ll find goo (electrolyte) and guts (anode and cathode materials), but if you take a battery apart, you’ll just find cells.

depends how far apart, if you keep going you get the same as the cell

just ribbing ya Big Smile

Hey! Don’t make me put on my foam-rubber nose & come sit in your room! Wink

i don’t get it

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

Bort
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Dimbo The Blinky wrote:
Bort wrote:
Dimbo The Blinky wrote:
Bort wrote:
Dimbo The Blinky wrote:
If you take a cell apart, you’ll find goo (electrolyte) and guts (anode and cathode materials), but if you take a battery apart, you’ll just find cells.

depends how far apart, if you keep going you get the same as the cell

just ribbing ya Big Smile

Hey! Don’t make me put on my foam-rubber nose & come sit in your room! Wink

i don’t get it

Can’t…
Sleep…
Clown will eat me! (“foam rubber nose”…)
(EDIT: Maybe I should have said “big flappy shoes”…?)

Yes
Besides, reports of my clown related demise have been slightly exaggerated

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

 

 

hank
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Quote:
(walks away Groening …)

OW Ow 0w ow ow ow

The Miller
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NICE translation! (well I am referring to the fact that there IS another translation made I cant read it lol)
This topic cold become a real life saver!

Dimbo The Blinky
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IMNERHO, Google Translate is one of the few Good Things Google provides. It’s not reliable on its own, though, so I always take the first translation, Copy it to the clipboard & start over translating it back into English (or whatever my first language happens to be). It sometimes takes a lot of work, but the end result is exactly what I first said in English. I do this out of respect for my non-English-speaking friends, but it seems Very Useful here too.
As you can see, they’re getting a little-bit better:

Dans ma même pas à distance humble avis, Google Translate est l’une des rares bonnes choses Google fournit. Il est pas fiable sur son propre, cependant, alors je prends toujours la première traduction, le copier dans le presse-papiers et recommencer le traduire vers l’anglais (ou quelle que soit ma première langue arrive à être). Il faut parfois beaucoup de travail, mais le résultat final est exactement ce que je a dit d’abord en anglais. Je le fais par respect pour mes amis non-anglophones, mais il semble très utile ici aussi.

“There is no darkness but ignorance.”

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Yes google translate is a very usefull tool!
my reason for hoping it gets translated in as many languages as possible is however so that native speakers who google for li ion safety in their own languages can find it (and then use google translate for the rest of BLF ;))

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+1
“It is not safe to eat Lithium-Ion batteries.”

(“It’s good that most people can’t remember their previous lives. Otherwise
things would be a lot more complicated than they already are.”
Ajaan Lee Dhammadharo)

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Fantastic post.

Also,

Quote:
It is not safe to eat Lithium-Ion batteries.
Big Smile
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Not even with ketchup? It makes everything taste good 8-)

Just kidding of course and you’d think it would go without saying until somebody does it and then cries “nobody warned me about that!” I hate whining Shocked

I’d rather have it said, although something in me wants Darwin to fix that little problem instead- anyone who’d willingly ingest any cell or battery does not deserve to exist.

Phil

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Quote:
It is not safe to eat Lithium-Ion batteries.

I was debating putting a “ Big Smile “ on that line…..

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Mr.Scott wrote:
Quote:
It is not safe to eat Lithium-Ion batteries.

I was debating putting a “ Big Smile “ on that line…..

I’d suggest deleting that particular item. By stating the obvious, it tends to cheapen the integrity of the lesson as a whole. Not to mention adding one more line to an already long message.

Rule 1-1 as it applies to life, take it as it comes.

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1dash1 wrote:
Mr.Scott wrote:
Quote:
It is not safe to eat Lithium-Ion batteries.

I was debating putting a “ Big Smile “ on that line…..

I’d suggest deleting that particular item. By stating the obvious, it tends to cheapen the integrity of the lesson as a whole. Not to mention adding one more line to an already long message.

I lolled the first time when I read it, but then it hit me there are a lot of scenarios this could be useful (say a dog) to know to get proper help.

Threadneedle
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The Miller wrote:
1dash1 wrote:
Mr.Scott wrote:
Quote:
It is not safe to eat Lithium-Ion batteries.

I was debating putting a “ Big Smile “ on that line…..

I’d suggest deleting that particular item. By stating the obvious, it tends to cheapen the integrity of the lesson as a whole. Not to mention adding one more line to an already long message.

I lolled the first time when I read it, but then it hit me there are a lot of scenarios this could be useful (say a dog) to know to get proper help.

Good point.

If anything, further emphasis could be put on not ingesting lithium ion batteries with specific reference to children and pets.

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What about LiFePO4? Should we have some info in the OP about that? It is a lot different chemistry, with a different nominal voltage as well as terminal charge voltage requirement. I know we don’t talk much about them here at BLF, because they’re not used in most of the flashlights we buy/build. But, maybe at least just the specifications and a few of the ways they are different from other Li-Ion cell chemistries should be noted somehow in the OP, so that Newbies can avoid confusion.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

Mr.Scott
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Most of the problems are with Lithium button batteries, but they do cause significant problems for children.

Quote:

  • More than 80 kids nationwide have suffered permanent damage from injuries caused by ingesting button batteries.
  • Fifteen children have died — 11 of them within the last six years.
  • In 2010, more than 3,400 kids swallowed button batteries.

http://www.chop.edu/centers-programs/kohls-injury-prevention-program/lit...

http://abcnews.go.com/Health/swallowed-lithium-batteries-send-kids-er/st...

http://www.bbc.com/news/uk-england-manchester-29610570

http://www.today.com/health/swallowed-button-battery-65-surgeries-boy-5-...

http://www.emedicinehealth.com/battery_ingestion/article_em.htm

And just this past December: http://pix11.com/2016/01/04/toddler-dies-after-eating-lithium-battery-tw...

1dash1
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Then perhaps the advisory message should specify button batteries. Innocent

Rule 1-1 as it applies to life, take it as it comes.

The Miller
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Buttons are small easy to swallow
A big dog should have no problem with a 26650

Mr.Scott
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DavidEF wrote:
What about LiFePO4? Should we have some info in the OP about that? It is a lot different chemistry, with a different nominal voltage as well as terminal charge voltage requirement. I know we don’t talk much about them here at BLF, because they’re not used in most of the flashlights we buy/build. But, maybe at least just the specifications and a few of the ways they are different from other Li-Ion cell chemistries should be noted somehow in the OP, so that Newbies can avoid confusion.

Is this getting close to the “tutorial” area?

Quote:
It does not attempt to provide a complete tutorial on Lithium-ion batteries nor the technical reasons for Li-ion dangers. It is intended as a starting point.

Perhaps if we specify which chemistry we are talking about in this thread and that there are other chemistries. When we talk about Lithium-Ion batteries what Chemistry are we talking about?

I see:

Chemistry Nominal Range
Lithium Cobalt Oxide(LiCoO2) 3.6V 3.0-4.2V
Lithium Manganese Oxide (LiMn2O4) 3.6V 3.0-4.2V
Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC) 3.6V 3.0-4.2V
Lithium Iron Phosphate(LiFePO4) 3.2V 2.5-3.65V
Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2) 3.6V 3.0-4.2V
Lithium Titanate (Li4Ti5O12) 2.4V 1.8-2.85V

Source: http://batteryuniversity.com/learn/article/types_of_lithium_ion

Dimbo The Blinky
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Mr.Scott wrote:
Most of the problems are with Lithium button batteries
As usual, mention the ‘L’ word & the conversation launches right off the rails.

Parents in this country, following the opinions of “Doctors”, put Lithium pills into their children, to get the brats to STFU. Maybe those reports were from people who saw a Youtube video & decided they were plenty smart enough to choose what was best for their own children & believed Lithium pills = Lithium batteries.

Yes, SawMaster, Darwin has a Theory about people like that!

Some of us have been around long enough to remember the hype and hysteria over SureFire, etc. and their dangerous expensive (there’s a nugget of Truth in every lie) camera batteries… Anyone actually have experience blowing up their pockets when loose change or car keys touched a CR123? Not experience watching a Youtube video, but actual real-life experience? Hmmm?

But we weren’t talking about Lithium batteries, were we?

We were talking about Lithium-ION batteries. Oh, well…

“There is no darkness but ignorance.”

Mr.Scott
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I’m on the fence about this. I hate stupid warnings, especially warnings that are there because of the lawyers, but if they help one person…

Perhaps adding comments about “button batteries” as suggested by 1dash1, and the links that describe the symptoms.

Side note:
I recently purchased peanut butter cookies. They had a “Warning: May contain nuts.” statement. The word may bothered me. If not nuts then what?

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I think we’re (actually you, Mr. Scott) are on the right track with this. Rare is the question of how to handle other technologies seen, but very often newbies and LiIon come into the picture so that makes this highly important.

Rather than ‘diluting’ the OP, links to threads on the other technologies would accomplish a wider view without turning this one into a “TL,DR” scenario. Remember the audience and their limited understanding, and don’t overwhelm them with TMI. We want them to read and understand the ‘necessaries’ here only- the deeper parts can come later with their (hopefully) advancing interests Smile

Phil.

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Précautions concernant les batteries Lithium-ion

Motivation :
La plupart des discussions/tests/modifications sur le forum BudgetLightForum (BLF) concernent des lampes de poche qui utilisent des batteries Lithium-ion rechargeables. L’utilisation de batteries Lithium-ion implique des risques, et requière plus de précautions que les batteries alcalines. Mais comme tout outil, lorsque qu’elles sont utilisées correctement, les risques peuvent être réduits et maîtrisés.

Cible :
Ce sujet souligne les précautions de sécurité pour les utilisateurs qui sont novices dans l’utilisation de ces batteries. Il ne s’agit pas d’un tutoriel complet sur les batteries Lithium-ion, ni d’explications techniques du danger de ces batteries. Il s’agit d’un point de départ.
Il y aura toujours des désaccords au sujet des règles de sécurité. Certaines de ces règles peuvent ne pas s’applique à ceux d’entre vous qui ont été assistants de laboratoire pour le “Dr Goodenough”:https://en.wikipedia.org/wiki/John_B._Goodenough , mais elle sont pertinentes pour les utilisateurs les plus novices. Vous devez être conscients de votre niveau de connaissance et d’expérience.
Les batteries Lithium-ion rechargeables correctement utilisées peuvent être sûres.
Les batteries Lithium-ion utilisées de façon inadéquate peuvent être dangereuses.
Achetez des batteries de qualité.
Economiser quelques centimes dans ce qui pourrait être des batteries douteuses ne vaut pas le coup.
Certaines batteries moins chères pourraient être contrefaites ou de récupération.
https://batterybro.com/blogs/18650-wholesale-battery-reviews/18852875-re...(link is external)
http://www.theepochtimes.com/n3/1421555-chinas-sloppy-battery-industry-t…(link is external)
Les utilisateurs expérimentés récupèrent des batteries dans des packs d’accumulateurs (type PC portable)
Attendez d’avoir un peu plus d’expérience avant d’essayer cela.
http://budgetlightforum.com/node/32720
Tests de batteries
http://budgetlightforum.com/forum/batteries/rechargeable/reviews
http://budgetlightforum.com/forum/batteries/rechargeable
http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html(link is external)
Achetez un chargeur de qualité.
Un deuxième sujet à ne pas négliger.

Une batterie de faible qualité peut être sûre dans un chargeur de bonne qualité mais aucune batterie n’est sûre dans un chargeur de piètre qualité. (SawMaster)
Lisez les essais/tests. Achetez un chargeur de qualité d’une marque reconnue avec de bons avis.
Les points à prendre en considération :
Protection contre la surcharge
Protection contre les inversions de polarité
Des canaux indépendants pour pouvoir charger et décharger des batteries de différents type en même temps.
Une interface utilisateur qui vous indique ce que vous voulez savoir. LED d’indication ou écran LCD.
Le chargeur doit charger à 4,20V +/- 0,05V, mais The charger should charge at 4.2V +/- 0.05V, but the battery may come off at a different voltage.
http://budgetlightforum.com/node/45344
Essais de chargeurs :
http://budgetlightforum.com/forum/batteries/chargers/reviews
http://budgetlightforum.com/forum/batteries/chargers
http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html(link is external)
Achetez et utilisez un multimetre .
Beaucoup préfèrent un multimetre à affichage LCD (DMM).
Apprenez à vérifier la tension de vos batteries Lithium-ion.
http://www.lygte-info.dk/info/Measurement%20UK.html(link is external)
Nota : l’utilité d’un multimetre ne fait pas l’unanimité, mais beaucoup de personnes les recommandent.
Charge/décharge
Les batteries peuvent être chargées entre 0*C et 45*C (32*F – 113*F)
Les batteries peuvent être déchargées entre -20*C et 60*C (-4*F – 140*F)
http://batteryuniversity.com/learn/article/charging_at_high_and_low_temp…(link is external).
Ne surchargez pas vos batteries.
La tension maximum doit être 4.2V.
Ne charger que jusqu’à 4.1V allongera la durée de vie de la batterie.
Un bon chargeur de batteries aide à éviter la surcharge.
Les chargeurs de batteries peuvent charger à +/- 0.05V et être dans les tolérances quand même.
http://budgetlightforum.com/node/45344
Après la recharge, verifiéz la tension de vos batteries avec votre multimètre après 5min de repos.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries(link is external)
Ne déchargez pas vos batteries à l’excès
La majorité des gens choisissent de recharger leurs batteries lorsqu’elles atteignent 3,5V à 3,6V
Une batterie est vide lorsqu’elle atteint 3,0V il faut alors la recharger.
Une batterie commence à se dégrader si elle atteint 2,5V.
Une batterie qui a atteint 2,0V doit être recyclé (ne pas l’utiliser).
Ne chargez pas vos batteries si la température estr en dessous de zéro degrés Celcius. (0*C / 32*F)
Ne laissez pas vos batteries devenir trop chaudes.
Si vous voulez stocker des batteries dans votre voiture l’été, choisissez des piles non-rechargeables au Lithium à la place des batteries.
Les hautes températures dégradent les batteries plus vite, mais en dessous de 60°C il n’y a probablement pas de risque.
http://budgetlightforum.com/node/42497
http://batteryuniversity.com/learn/article/charging_at_high_and_low_temp…(link is external).
Pour le stockage longue durée (plusieurs mois), il est préférable de stocker les batteries à 40-50% de charge (3,77 à 3,87V)
http://batteryuniversity.com/learn/article/how_to_store_batteries(link is external)
Lorsqu’elles ne sont pas dans une lampe de poche, les batteries devraient être stockées dans des boites de protection/transport.
Cela les protège contre les courts-circuits et les chocs.

Ne transportez jamais de batteries librement dans votre sac ou vos poches.
https://www.youtube.com/watch?v=k1LjSuq0rk8(link is external) <==
N’utilisez pas une batterie physiquement endommagée.
Les batteries protégées sont en général plus sûre que les batteries nues.
Les batteries protégées sont équipées d’un circuit qui les protège contre la surcharge et la décharge excessive.
Le circuit de protection accroît la longueur de la batterie, et son diamètre. Les batteries protégées ne logent pas dans toutes les lampes de poche. Vérifiez vos lampes, sachez lesquelles sont compatibles.
Certaines lampes de poche ont une protection contre les tensions basses (pour protéger vos batteries). Connaissez vos lampes de poches !
Certaines lampes à fort courant peuvent déclancher le circuit de protection de votre batterie, et nécessitent donc une batterie non protégée. Connaissez vos lampes de =poches !
Les lampes de poches à plusieurs batteries comportent plus de risques que les lampes à une seule batterie.
Si vous débutez juste, il est judicieux de commencer par des modèles à une seule batterie.
Lorsque vous utilisez des lampes à plusieurs batteries, et afin de réduite les risques de décharge inégale entre les batteries, il est important que vos batteries :
soient du même type,
soient de même marque et modèle,
aient la même capacité (mAh),
soient chargées à la même tension,
L’idéal est de marquer vos batteries pour être sûr d’utiliser toujours les mêmes ensemble.
Chargez vos batteries dans un endroit qui ne comporte pas de matière inflammable.
Placez le charger sur un meuble, pas dans votre canapé !
Ne laissez jamais des batteries en charge sans surveillance.
Vérifiez les régulièrement pour être sûr qu’elles ne chauffent pas trop. Tiède, c’est normal, brûlant non !
Nota : il y a différents opinions sur la fréquence de ces vérifications.
http://www.local10.com/news/local-10-investigates/lithium-ion-battery-bu…(link is external)
Une batterie endommagée peut provoquer un incendie !

“Des conditions extrèmes tels que la surcharge , une décharge et les courts-circuits internes peuvent conduire à des températures de batterie bien au-delà des caractéristiques du fabricant . À une température critique, une chaîne de réactions exothermiques peut être déclenchée. Ces réactions conduisent à une augmentation supplémentaire de la température, ce qui accélère la cinétique de la réaction. Cette dégradation de l’auto- accélération catastrophique de la batterie Li -ion est appelé emballement thermique
.2”(link is external)
Au cours de l’emballement thermique , des températures jusqu’à 900 ° C peuvent être atteintes, et la batterie peut libérer une quantité importante de combustible et ( en cas d’inhalation dans des concentrations élevées ) des gaz toxiques.
.4”(link is external)
Royal Society of Chemistry http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f(link is external)
Dans le cas d’un incendie impliquant des batteries lithium-ion, consultez un médecin immédiatement.
Brûler ou ouvrir une batterie lithium-ion produit du fluorure d’hydrogène. Les symptômes dûes à l’exposition au fluorure d’hydrogène ne sont pas immédiatement vissibles.
“la batterie peut émettre une quantité non négligeable de gaz inflammable et (inhalé dans de grandes quantités) toxique.4”(link is external)
Royal Society of Chemistry http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f(link is external)
Consultez immédiatement un médecin. N’attendez pas de ressentir des symptômes.
http://www.candlepowerforums.com/vb/showthread.php?141137-Inhaled-vapors…(link is external)!!!
Il y a différentes opinions concernant l’usage d’aimants pour créer un contact “bouton” sur un contact “plat”.
Ne mouillez pat vos batteries.
Ne brûlez pas de batteries.
Recyclez vos batteries de façon responsable (points de collecte).
Il n’ets pas recommandé de manger des batteries Lithium-ion, en cas de grosse faim, pensez aux piles Alcaline.

Plus de lecture sur le sujet :
Une litanie pour débutants : http://budgetlightforum.com/comment/904373#comment-904373
Faites une recherche de sujet avec le mot-clé “safety” – http://budgetlightforum.com/node/26665
Précautions d’emploi et guide d’achat des batteries lithium-ion : http://budgetlightforum.com/node/16699
Précautions d’usage http://batteryuniversity.com/learn/article/lithium_ion_safety_concerns(link is external)
Batteries à base de Lithium http://batteryuniversity.com/learn/article/lithium_based_batteries(link is external)
Types de Lithiuim-ion – http://batteryuniversity.com/learn/article/types_of_lithium_ion

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The Miller
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Nice! Thanks!

I quoted the Islandic and French translations in my first reaction in this thread to have the text on the first page, read in another thread Google search displays only results from a topics first page so want to be sure the translations are easy to be found.
I have the German translation in my pm inbox, done by Hannoveraner, but it is better he posts his hard work himself.

Russian should be in the making
Arabic also.

Spanish is harder, the only Spanish BLFer I know is active is too busy, so if anyone know about a member who can do that please ask him/her for a translation if you agree this important text should become available in more languages. (The same goes for other not mentioned languages of course.)

Mr.Scott
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Thank you – X3 -. A link to your post has been added in the original post.

Mr.Scott
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(Thank you to Andreas for this translation and to The Miller for coordination.)

Motivation:
Viele der Taschenlampen, die im BLF diskutiert / bewertet / gemodded werden, verwenden Lithium-Ionen-Akkus. Die Verwendung von Lithium-Ionen-Akkus birgt einige Risiken und erfordert mehr Vorsichtsmaßnahmen als Alkaline-Batterien. Aber wie bei jedem Werkzeug können die eventuellen Risiken verringert werden, wenn man richtig damit umgeht!
Für wen dieser Beitrag gedacht ist:
Dieser Beitrag beschreibt Sicherheitsmaßnahmen für Benutzer, für die Lithium-Ionen-Akkus noch neu sind. Es wird weder versucht ein komplettes Tutorial auf Lithium-Ionen-Akkus zur Verfügung zu stellen, noch die technischen Gründe für Li-Ionen-Gefahren. Er gilt als Einstieg in diese Materie.
Es wird immer einige Meinungsverschiedenheiten über Sicherheitsregeln geben. Einige dieser Sicherheitsregeln gehören nicht zu denen, die Laboranten für Dr. Goodenough waren (Link extern), sie sind eher für Anfänger geeignet. Es kommt immer auf eure bisherigen Erkenntnisse und Erfahrungen an.
Lithium-Ionen-Akkus können sicher verwendet werden, wenn sie ordnungsgemäß verwendet werden.
Lithium-Ionen-Akkus können gefährlich sein, wenn sie unsachgemäß eingesetzt werden.
Kaufen Sie Qualitätsakkus.
Es ist nicht wert fragliche Batterien zu kaufen, nur um einen Cent zu sparen.
Einige der günstigeren Akkus könnten Fälschungen sein oder recycelt worden sein.
Picture
https://batterybro.com/blogs/18650-wholesale-battery-reviews/18852875-re… (link is external) (link is external) (link is external)
http://www.theepochtimes.com/n3/1421555-chinas-sloppy-battery-industry-t (link is external)… (link is external)
Erfahrene Anwender nutzen Batterien von Akkupacks.
Wartet, bis ihr ausreichend Erfahrung mit der Li-Ion-Technik habt, bevor ihr solche Zellen verwendet.
http://budgetlightforum.com/node/32720
Akkutests:
http://budgetlightforum.com/forum/batteries/rechargeable/reviews
http://budgetlightforum.com/forum/batteries/rechargeable
http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html (link is external) (link is external)
Kauft ein Qualitätsbatterieladegerät.
Wählt auch hier bitte nicht das billigste Ladegerät.
Picture
Eine leistungsschwache Zelle kann in einem guten Ladegerät sicher sein, aber keine Zelle ist sicher in einem schlechten Ladegerät. ( SawMaster )
Lest die Bewertungen. Kauft Markenware mit guten Bewertungen.
Dinge, die zu beachten sind:
Überladungsschutz.
Verpolungsschutz.
Unabhängige Kanäle, so hat man die Möglichkeit verschiedene Batterietypen gleichzeitig aufzuladen und kann oftmals auch den Ladestrom einstellen.
Die Anzeige (LCD-Display) zeigt einem, was man wissen will.
Das Ladegerät sollte bei 4.2V +/- 0.05V aufhören zu laden, aber die Batterie könnte unter Umständen mit einer anderen Spannung entnommen werden.
http://budgetlightforum.com/node/45344

Ladegeräte-Tests:
http://budgetlightforum.com/forum/batteries/chargers/reviews
http://budgetlightforum.com/forum/batteries/chargers
http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html (link is external) (link is external)
Kaufe und verwende ein Multimeter.
Viele nutzen Digital Multimeter ( DMM) .
Lernt, wie man mit einem Multimeter die Spannung von Li-Ionen-Akkus messen kann.
http://www.lygte-info.dk/info/Measurement%20UK.html (link is external) (link is external)
Hinweis: Nicht jeder sagt, dass man ein DMM benötigt, aber viele empfehlen es.
Laden & Entladen:
Akkus können bei folgender Temperatur geladen werden: 0°C – 45°C (32°F – 113°F)
Akkus können bei folgender Temperatur entladen werden : -20°C – 60°C (-4°F – 140°F)
http://batteryuniversity.com/learn/article/charging_at_high_and_low_temp (link is external)… (link is external) (link is external)
Überladet eure Akkus nicht.
Die maximale Spannung sollte 4,2V sein.
Nur auf 4,1V geladene Akkus können länger halten / mehr Ladezyklen erreichen.
Ein gutes Ladegerät hilft eine Überladung zu verhindern.
Batterieladegeräte können eine Genauigkeit von +/- 0,05V haben und liegen damit immer noch im Toleranzbereich.
http://budgetlightforum.com/node/45344

Nach einer etwa fünf minütigen Pause nach dem Ladevorgang, überprüfe die Batteriespannung mit deinem DMM.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries (link is external) (link is external)

Entlade deine Akkus nicht zuviel.
Viele Leute laden ihre Akkus, wenn sie 3,5- 3,6V erreicht haben.
Akkus sind in der Regel komplett leer, wenn sie 2.7-3.0V erreicht haben, dann aufladen.
Die Akkus beginnen Schaden zu erleiden, wenn sie auf 2,5 Volt entladen sind.
Die Batterien sollten entsorgt werden, wenn sie auf 2,0 Volt entladen wurden.
Lade deine Akkus nicht, wenn die Temperatur unter dem Gefrierpunkt liegt (0°C / 32°F).
Die Akkus sollten nicht zu heiß werden.
Sollte man eine Taschenlampe im Sommer im Augen liegen haben, wird die Nutzung von Batterien empfohlen.
Hohe Temperaturen verschlechtern die Zellen schneller, aber solange die Temperatur geringer als 60°C (140°F) ist, gibt es wahrscheinlich kein Sicherheitsrisiko.
http://budgetlightforum.com/node/42497
http://batteryuniversity.com/learn/article/charging_at_high_and_low_temp (link is external)… (link is external) (link is external).
Für eine langfristige Lagerung (über Monate) wird eine Akkuladung von 40 – 50 % empfohlen (3,77 – 3,87V)
http://batteryuniversity.com/learn/article/how_to_store_batteries (link is external) (link is external)

Wenn sich die Akkus nicht in einer Taschenlampe befinden, sollten sie stets in einer dafür vorgesehenen Transportbox untergebracht sein.
Dies schützt sie vor Kurzschluss und äußerlichen Beschädigungen.
Picture
Trage niemals lose Batterien in deiner Tasche oder Handtasche .
https://www.youtube.com/watch?v=k1LjSuq0rk8 (link is external) (link is external) (link is external) <==
Benutze keine Akkus mit äußerlicher Beschädigung.
Geschützte Batterien sind in der Regel sicherer als ungeschützte Batterien.
Geschützte Batterien haben eine Schaltung, welche vor Überladung und Tiefentladung schützt.
Schutzschaltungen erhöhen leicht die Länge und Breite der Batterie. Geschützte Batterien passen nicht in alle Taschenlampen. Kennen Sie Ihre Taschenlampe.
Einige Taschenlampen haben niedrige Spannungsschutz und wird bei niedriger Spannung abgeschnitten. Kennen Sie Ihre Taschenlampe.
Einige hohen Zieh Taschenlampen wird die Schutzschaltung in einem geschützten Batterie stolpern und erfordern ungeschützt Batterien. Kenne deine Taschenlampe.
Taschenlampen mit mehreren Akkus bürgen ein höheres Risiko als Taschenlampen mit nur einer Zelle.
Anfängern wird zu Einzellen-Lampen geraten.
Um bei Mehrzellenleuchten die Möglichkeit einer ungleichmäßigen Entladung zwischen den Batterien zu reduzieren, ist es wichtig, dass alle Batterien:
vom gleichen Typ sind,
vom gleichen Hersteller sind,
die gleiche Kapazität haben (Ah),
auf die gleiche Spannung aufgeladen werden.
Man sollte die Akkus markieren, so dass man den gleichen Satz zusammen im Laufe der Zeit immer wieder verwendet.
Ladet die Batterien an einem Ort, wo es keine brennbaren Materialien gibt.
Stellt das Ladegerät auf einen Tisch, nicht auf das Sofa.
Lasst niemals Batterien unbeaufsichtigt laden.
Um sicher zu stellen, dass die Akkus nicht heiß werden, berprüft sie in regelmäßigen Abständen. Warm ist in Ordnung.
Hinweis: Es gibt unterschiedliche Meinungen darüber, wie oft man dies überprüfen sollte.
http://www.local10.com/news/local-10-investigates/lithium-ion-battery-bu (link is external)… (link is external)

Beschädigte Akkus können zu brennen anfangen!
Picture
“Missbrauch wie Überladung, Tiefentladung und interne Kurzschlüsse kann zu Batterietemperaturen von weit über die Herstellerangaben führen. Bei einer kritischen Temperatur kann eine Kette von exothermen Reaktionen auslgelöst werden. Diese Reaktionen führen zu einer weiteren Temperaturerhöhung, die wiederum die Reaktionskinetik beschleunigt. Diese katastrophale selbstbeschleunigende Degeneration des Li-Ionen-Akkus wird “thermische runaway.2 “ (Link extern ist ) genannt.
“ Bei diesem thermischen Ausreißer werden Temperaturen bis zu 900°C erreicht, 3 ( Link ist extern) und der Akku gibt eine erhebliche Menge an brennbaren und toxischen Gasen (in hohen Konzentrationen bei Einatmen) ab.4”
Royal Society of Chemistry http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f (link is external) (link is external)
Im Falle eines Lithium-Ionen-Brand sofort einen Arzt aufsuchen.
Lithium-Ionen-Akkus produzieren durch Brennen oder Entlüftung Wasserstofffluoride. Daraus Resultierende Verletzungen sind nicht sofort ersichtlich.
“the battery can release a significant amount of burnable and (if inhaled in high concentrations) toxic gas.4” (link is external)
Royal Society of Chemistry http://pubs.rsc.org/en/content/articlehtml/2013/ra/c3ra45748f (link is external) (link is external)
Sofort einen Arzt aufsuchen . Warten Sie nicht , bis Sie Symptome auftreten .
http://www.candlepowerforums.com/vb/showthread.php?141137-Inhaled-vapors (link is external)… (link is external) (link is external)!!!
Es gibt unterschiedliche Meinungen über die Verwendung von Magneten um aus Flat-Top Akkus Button-Top Akkus zu machen.
Akkus sollte man nicht nass werden lassen.
Auch sollte man Akkus nicht anzünden.
Entsorgt die Batterien ordnungsgemäß.
Kanada – http://call2recycle.ca/ (link is external) (link is external) (link is external)
UK – http://www.batteryback.org./ (link is external) (link is external) (link is external)
USAhttp://call2recycle.org/ (link is external) (link is external)
Verwahren Sie die Batterien außerhalb der Reichweite von Kindern und Haustieren.
Beim Verschlucken bekommt man diese kleinen Batterien in die Speiseröhre (Rachen) und sie bleiben stecken. Der Speichel löst einen elektrischen Strom aus, der eine chemische Reaktion verursacht, die Speiseröhre kann in weniger als 2 Stunden zu brennen.
Ein ernstes Problem für Kinder und Haustiere.
In erster Linie ein Problem bei Knopfbatterien, aber Potenzial besteht bei allen Akkus.
http://www.chop.edu/centers-programs/kohls-injury-prevention-program/lit… (link is external) (link is external) (link is external)
http://www.emedicinehealth.com/battery_ingestion/article_em.htm (link is external) (link is external)
Weiterführende Literatur über Lithium-Ionen- Batterien:
Eine Litanei für Anfänger: http://budgetlightforum.com/comment/904373#comment-904373
Suche Beitrag für “Sicherheit”: http://budgetlightforum.com/node/26665
Li-Ionen-Akku-Sicherheits- und Shopping Guide: http://budgetlightforum.com/node/16699
Li-Ionen-Sicherheitsbedenken: http://batteryuniversity.com/learn/article/lithium_ion_safety_concerns (link is external) (link is external)
Batterien auf Lithiumbasis: http://batteryuniversity.com/learn/article/lithium_based_batteries (link is external) (link is external)
Batterie-Chemie: https://batterybro.com/blogs/18650-wholesale-battery-reviews/18880255-ba (link is external)… (link is external)
Arten von Lithium-Ionen: http://batteryuniversity.com/learn/article/types_of_lithium_ion (link is external) (link is external)

zelee
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nice info for Li Ion battery safety, i will link this thread to all my friend and family because sometime they just ignored my warning about how dangerous Li Ion battery if not handled carefully Smile

DavidEF
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I just posted this in the Safety Bags thread, but I thought I’d put it here too, for posterity, and to give this thread a little bump.

Quote:
I have a flashlight that I modified and changed the driver. Well, because of the way I changed it, the length inside the battery tube is a little shorter than before. I have a cheap no-name 14500 that I’ve been using, and the bottom plate of the cell got pushed in a little. I wanted to see how much shortage I had there, so I measured the cell with a digital caliper. (The bottom edge of the cell is covered by the plastic wrap, so it was no problem) Then I measured a cheap alkaline AA that had come with the light, and it was shorter. (Still no problem, I guess because of low energy in the cheap cell) I hadn’t realized yet what I was doing, but I was about to find out. I tried to measure a new, fully charged Efest purple. I saw sparks! There was no visible damage done, but the cell was warm on the two ends. That’s when I realized what I’d done, and how close I came to meeting Jesus. I put a little electrical tape on one side of the caliper, re-zeroed it, and measured the Efest. Turns out, the Efest fits the flashlight without any crushing. 8-)

Kids don’t try this at home! Shocked

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

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