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Madness
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Joined: 08/10/2011
Location: AustraliaPosts: 2498 |
| Posted: 07:16pm 17 Feb 2017 |
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Tesla have a bit of work to do in Australia but have a look at their world map there are charging stations all over north america and europe.Edited by Madness 2017-02-19
There are only 10 types of people in the world: those who understand binary, and those who don't. |
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yahoo2
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Joined: 05/04/2011
Location: AustraliaPosts: 1166 |
| Posted: 07:27pm 17 Feb 2017 |
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the irony is that the combo chademo/ccs DC charger that EV consumers love to use overseas is an Australian design.
I'm confused, no wait... maybe I'm not... |
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isochronic
Guru
Joined: 21/01/2012
Location: AustraliaPosts: 689 |
| Posted: 12:32am 18 Feb 2017 |
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From memory, when lithium cells were first commercialised there were
understandable concerns from insurance companies regarding transport and fire/safety. ( It does react with water, oxygen, nitrogen..)
It was pushed through, that it could be transported in everyday type transport
in separate-packaged amounts up to ca 1 g. Which is the amount in one AA cell.
I guess now the amount is higher (?) but I still have not seen say, a (non rechargeable) lithium D cell, in ordinary shops, although they almost certainly
exist. So the Tesla arrangement might have some red tape cause.
It would be good to see bulk lithium "fuelling" power stations in large molten salt cells, and regenerated/stored for baseload. Much more efficient, and could even
be transported to/from WA via train. It is about the only energy store that comes close to a coal train - and a lot cleaner. And sea water has about a gram per 10 cubic meters, if it can be separated.
Funny how public perception is distorted...Mention hydrogen,
and the image is of the Hindenberg fire. But ordinary natural gas has three times the energy/volume...and "town gas" was a lowish grade fuel, hydrogen and lethal carbon monoxide as well..piped in to homes (!) |
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oztules
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Joined: 26/07/2007
Location: AustraliaPosts: 1686 |
| Posted: 11:23am 18 Feb 2017 |
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I think it is to do with the maximum size that the Liion technology can go to before it is unusable / unstable.
So the cell has to be small enough that critical temps are not recorded deep in the cell.... so they are very small. The larger lithium stuff is a different technology with lower power density...
So tesla have gone for the nuclear option without over stepping the safety of size barrier in their chosen lithium regime. Even though they are packed in, their surface area is enough to dissipate the heat safely out of the system so that critical problems don't arise... ie that sized cell is still very robust.
Trevor ( on this site) has chosen the lower density big cells for his car..... with different performance I suspect.
The grammes of lithium battery for postage is a construct amount.... not to do with the real amount of lithium, but more like the HP rating on car rego from the looks of it.
...........oztules
Village idiot...or... just another hack out of his depth |
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Madness
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Joined: 08/10/2011
Location: AustraliaPosts: 2498 |
| Posted: 01:42pm 18 Feb 2017 |
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Those Tesla batteries are water cooled too. They are now working on larger individual batteries
"The new 2170 battery cell, named after its 21 mm by 70 mm dimensions, is thicker and taller than the ‘18650’ cell format it replaces, which has served as the standard lithium-ion format for decades. Tesla tailored the 2170 cell to deliver higher energy density through an automated manufacturing process it designed with Panasonic to save costs."
They are talking around $190 USD per KWH.
There are only 10 types of people in the world: those who understand binary, and those who don't. |
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isochronic
Guru
Joined: 21/01/2012
Location: AustraliaPosts: 689 |
| Posted: 06:16pm 18 Feb 2017 |
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from a decade ago -
http://www.rosebatteries.com/pdfs/Ultralife%20Lithium%20Transport%208-07.pdf
(!!! ah yes, theres nothing like regulations )
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