What does it take to make a 18650 vent and perhaps blow some fire?

Batteries and Chargers Rechargeable Batteries
1

Honestly I tried everything :smiley:

I had 3 1600mAh aso 18650 laying arround and I wanted to make them go boom

Upfront I had a welding mask on fireproof gloves and a leather overall.

Did it in the backyard where I was alone and all safety precautions were taken.

I tried 3 different ways.

1. stripped the cell naked and put a piece of metal wire across the negative and positive edge.

Made some smoke, wire got red hot and that wat that. Kinda boring.

2. Stripped the cell naked and put a neodymium magnet and a copper coin on the negative and positive edge.

Same thing, some smoke and that was that.

3. Stripped the cell naked and dropped it in a plastic bottle with water.

That was 10 minutes ago and nothing!!!???

What does it take?

2

It takes a professional idiot and an Emergency Room. Luckily, you did not qualify :wink:

3

Try over discharging them. Well done on not being a Darwin award candidate. :slight_smile:

4

My asbestos lined suit is in the mail,so I had to make due with the protection gear I had :wink:

But I really thought they were more unstable, makes me wonder what kind of crappy made cells really do go POEF

Like you read about in the news.

5

It’s not only the cells that are crappy. In a multi cell setup the circuits used might also be crap, which might even be a greater risk (unevenly charged cells, over (dis)charged cells).

6

Check DBSARs tests, took him a while to get some real action

(But I am glad you ran out of crappy cells :smiley: )

7

Connect the battery to a 120v line?

8

Or toss it in a camp fire. :open_mouth:

9

Heat.

Heat the cells with a blowtorch or by overcharging them with a big power supply.

Most cell today will handle a short without any big events (It is one of the requirements before they can be shipped).

10

Fire is best.

Overcharge stick some decent voltage in them

Short circuit may work if non protection

Make sure battery is fully charged if shorting it.

11

Patience. And it depends mostly on which particular battery and how old it is, and how much misused/abused.

Wait for the dendrites to grow and puncture the membrane.

Have you ever made rock candy? Watched the crystals grow?

That’s the process you’re looking to accelerate here.

Don’t fall for the story — whether honestly mislead or strawman — that it’s a common problem easily caused.

It’s a low-likelihood problem with consequences most people don’t understand.

You know when not to inhale and what HF can do to your lungs.

Most of the people either overblowing this problem or minimizing it don’t.

Ask them.

12

Could simply be that 18650 cells are not the instant bringers of instant death and destruction if you make the slightest mistake with them or look at then funny, that some people would like us to believe.
Spoken to people who have been injured or had a near miss with a lead acid car battery, but yet to meet anyone who’s had an issue with a 18650 cell and over here they are everywhere with the vapers now analogue smoking is banned almost everywhere.

Probably statistically your far more likely to be injured putting on your trousers than you are from using 18650 cells

13

I think I know how to make my Panasonic B vent and blow fire. I’d tell her:

“Listen babe, you know I really like you… But that was some years ago….You were hot back then. But I found someone new. Yeah. She’s a ginger. Het name is Sanyo GA. Sorry babe, but she’s my new love…”

My Panas will go nuts, vent and blow fire no doubt. So that’s why I don’y say anything. Keep them Pannies in older lights so they never get to see the Sanyos…

14

This.

Be sure to set up a video camera before you hit the switch. Youtube will love you for it.

15

Already done so, how about trying that with 230/240VAC mains?

Cheers ^:)

16
17

How about spiceing this a bit with some glyceryl trinitrate?

Skip the unimportant first 40 seconds (sorry, the editor doesn't supports adding time offset).

LMAO!

Cheers ^:)

18

There’s a couple of threads on CPF about venting. One chap lost an eye when his vaping gadget exploded. Possibly the OP has very good quality cells, not that I know.

19

Those Aso brand cells were the worst I had, for the rest I only have Sanyo’s, Sony’s, Panasonic’s, Samsung’s etc.

I do think that even using the big brand’s in a vaping gadget is dangerous, due to the high drain beeing put on the cell.

You need special cells that support high drain like a Sony vtc5 or a Samsung 30Q.

If a non high drain cell has 2200 mAh it means it can support upto 4.4A

A vtc5 can do 30A and a 30Q 25A.

20

That is an over-simplification. Battery internal resistance is the main limiting hurdle, along with battery mass, with regards to how many amps you can draw from it.

I think it is much better to stay on the safe side and not abuse the capabilities of the cells, but there may be uneducated moronic people out there who may believe they can safely pump out 75A out of a battery just because the manufacturer *cough* rewrapper placed a capital letter “A” after some sort of two digit figure on the wrapping. Hell, not so recently I wrote a comment on the E-Cigarette Forum about the LiitoKala 26650-50As and soon thereafter some guy complained about the “50A” rating :FACEPALM: . I replied to him that these numbers were some sort of manufacturer code (capacity rating, revision, etc).

Cheers ^:)