Linden's Handbook of Batteries https://a.co/d/9gKbVbn
That will give you an idea about the depth of past and near current battery development. This is important, and scads of work is done on it. But, you have to dive into the scientific literature. Lots of papers are out there in the field of electrochemical science. You could start looking at papers from the Jeff Dahn lab. This thread talks about "batteties" as if that is a specific thing. I am going to assume the most recent comments are about lithium ion cells with non solid electrolyte. Talking about solid state cells as if there are common details confuses the discussion. The current li cells have a graphene cathode and a lithium anode. The main problem with longevity continues to be the extreme reactivity of the anode when the cell is fully charged. It is pretty inert when discharged but when a lot of li is relocated into the cathode the anode starts to destroy the electrolyte. The best way around this is to not charge cells fully and come up with protective additives to the electrolyte. Then there are optimizations like cooling to keep temperatures low during high current segments. Heat also accelerates cell damage. On Wed, Dec 14, 2022, 5:08 PM Lawrence Winiarski via EV <ev@lists.evdl.org> wrote: > > I'm not chemist, but I would suspect that batteries go "bad" for lots of > different reasons. I know a few tidbits here and there, but it seems in > general chemicalreactions are not perfectly reversable because of unwanted > byproducts and side effects. I don't believe this can ever be > completely eliminated, only > reduced. Molecules can always arrange themselves lots of different > ways...good and bad. > > Where is a good source for literature about such things battery related? > (especially Lifepo4 related) > You'd think this was a highly important subject. > > > > On Wednesday, December 14, 2022 at 01:19:00 PM PST, Jukka Järvinen via > EV <ev@lists.evdl.org> wrote: > > Solid electrolyte can basically last ”forever”. So this is not actually > ”news”. :) > > Reason why cells go broken today is the liquid electrolyte and passivation > layers it needs. Function of time and temperature and voltage. > > In theory LFP cell with solid, e.g. cellulose, electrolyte can provide > millions of cycles. Cathode already is stable enough to support that but > for anode we need some more stable 3D steuctures. Doable and plenty of good > ideas to be tested. > > -Jukka > > > ke 14.12.2022 klo 22.53 Peter Eckhoff via EV <ev@lists.evdl.org> > kirjoitti: > > > Normally, I would bypass something like this except that it is from > > respected universities and their battery shows with no signs of > > degeneration after 400 cycles. Here is the title and link and first > > paragraph: > > Scientists invent ‘game-changing’ electric car battery that never > > loses charge capacity > > > > > https://www.msn.com/en-au/news/techandscience/scientists-invent-game-changing-electric-car-battery-that-never-loses-charge-capacity/ar-AA15efd1?ocid=msedgdhp&pc=U531&cvid=5703b2f9ec9647268e57552a807973cb > > > > " An international research team from the University of New South > > Wales (UNSW) in Australia and Yokohama National University in Japan > > claim the breakthrough could provide a viable and vastly superior > > alternative to current battery technologies." > > > > Does anybody here know anything about this battery? > > _______________________________________________ > > Address messages to ev@lists.evdl.org > > No other addresses in TO and CC fields > > HELP: http://www.evdl.org/help/ > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20221214/86527f19/attachment.htm > > > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20221214/371497c8/attachment.htm > > > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20221214/5f21ced2/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
