Tesla Could Use Up All The World's Laptop Batteries (18650's)

Yes, you are converting energy to matter! Chemical reactions are no different, than nuclear. Mass conservation si only simplification, becouse mass change in chemical reactions is very small :wink:

Surely they will increase production and the cells will become cheaper? Note also that laptop sales are falling fast.

so your telling me there are nuclear reactions happening in a battery?
So the chinese preoccupation with lead ending up in food and other products is just for our safety?

This is all irrelevant, as I hoped was clear when I posted it, but. It’s like you said, electricity has no weight, except energy always has some weight as given by the famous equation. If no matter moves but chemical and electric energy changes, only the relativistic mass of the energy changes. That is less than a gram but not exactly zero. Part of why the equation is famous is that in nuclear reactions, so much energy can be given off or absorbed that the difference in mass is measurable, even though the number of protons, neutrons and electrons does not change.

energy has no mass, energy and matter can be converted but a battery is not a nuclear reactor it stores energy chemically not by changing matter into energy, converting matter to energy requires fusion (like the sun) or fission

e=mc2 means if you had a chunk of matter and you could convert it all to energy you would get the number of joules specified by the equation.
And if you convert energy into matter, you would get the amount of matter indicated by rearranging the equation to solve for m

No :~
E=m*c^2 is for both, chemical and nuclear reactions.

Nuclear=bonding energy in nucleous
Chemical=bonding energy of electrons

Example:
H2+O2 mixture has a higher energy state than H2O when the bonds are reconfigured to the lower energy state of H2O this energy is released and hence mass.
But weight loss is only 0.294ng per gram of water produced-you can simplify, that there is no mass change :stuck_out_tongue:

so why does my nimh batteries deliver less output then my li ion? the lithium weighs less as well

premium Ultrafires.

Fusion and fission are the most common forms of matter to energy conversion. Neither, however, are REQUIRED. Radioactive decay is a perfect example. The interior of the earth is primarily heated by the decay heat of radioactive isotopes. Neither fission or fusion contribute to this conversion. The three damaged reactors in Fukushima, Japan as well as the spent fuel pools must also be continually cooled because of the Matter to Energy conversion of radioactive decay. No Fusion or Fission is taking place (well, at least that's what Japan tells us - I have other beliefs, but that's for another discussion)..

PPtk

radioactive decay=fission
In nuclear physics and nuclear chemistry, nuclear fission is either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts…

Good news ! The technology in energy and batteries are so archaic it desperately need huge scientific research, the thing that is blocking the evolution is the oil based economic system.

Thanks for quoting wikipedia. Bill Nye the Science Guy, for the record, is equally frowned upon for quotes when talking about things more interesting and complicated than why solid water generally floats on liquid water.

fission is defined as the splitting of an atom into two smaller atoms. Uranium 235, for instance, after being struck by a free neutron commonly fissions into xenon and strontium. It can fission into many different things, but xenon and strontium are some of the most common.

Decay, on the other hand, does not create two atoms. A single atom releases a Beta or Alpha particle, and sometimes one or more gamma photons. It remains a single atom, but changes to a different isotope or a completely different element. Iodine-131, for instance, typically decays by emitting a Beta particle and a gamma photon to become Xenon-131.

PPtk

Alpha decay-ejecting hellium nucleus. You get two atoms :wink:

85000÷7000=12.1Wh
I guess this is in small discharge current situation, just normal cells…

Just curious why Tesla would use 18650’s instead of custom li-polymer packs.

Don’t they have a higher discharge/charge rate and could be shaped into whatever rectangular solid?

Seems like they also would have higher energy densities because 18650’s form gaps when grouped into a box.

Not sure how it works, but the Nissan Leaf has a fast charger built in. In 15 minutes, it charges to 80% of the batteries.. I thought that was fast..

Sorry Bort, but —-

According to information on Wikipedia, a gallon of gas weighs 6.073 US pounds.
20 gallons of gasoline weighs 121.46 pounds US. (assume 15mpg)

Each electron has weight (very little, = 7.93×10−36 lb ) but some weight.
Electrons move down copper wires (Very little) but it’s a pretty good theory they move.
(Someone guy did the math on this in Tesla’s blog, can’t find it now, but until proven wrong, I’ll agree with him)

Come to think of it, maybe this explains how the new battery test works:

Lol
Us pounds, gallons and electrons walking inside a battery, and this video to proof it…. :bigsmile: :party: :bigsmile:

Borts mistake was that he used the standard unit for density but not standard unit for mass. I hope that sometime a scientist gets president of the US and that he forbids those weird units :wink:

54kg÷0.72kg/l÷(300miles×1.61miles/km)=15.5l/10^2km

15 liter per 100km

Does Tesla seriously think sales will ever hit this, it’s a joke, same as a certain low volume UK sports car maker stock piling cars in the USA pre registered to get the government grants for export from the UK gov!!
I would seriously love a affordable clean electric car, but in the UK at least that would mean the gov would find some way of taxing the “fuel” you put into the car, same as with gas/petrol.
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