http://www.mpoweruk.com/lithium_failures.htm
http://www.mdpi.com/1996-1944/6/4/1310/pdf https://batteryworkshop.msfc.nasa.gov/presentations/1-Lithium_Plating_AZimmerman.pdf This looks really good, but not just about plating Li: Journal of The Electrochemical Society, 160 (11) A2111-A2154 (2013) A2111 0013-4651/2013/160(11)/A2111/44/$31.00 © The Electrochemical Society Multi-Scale Characterization Studies of Aged Li-Ion Large Format Cells for Improved Performance: An Overview (PDF is free) http://jes.ecsdl.org/content/160/11/A2111.full.pdf+html This article is about temperature, but not about charging: http://jes.ecsdl.org/content/160/1/A191.full.pdf+html "we found that thermal excursion in the range of −5◦C to 40◦C is benign to capacity fade. Exposure to −20◦C and 60◦C respectively leads to irreversible fade. The capacity fade at −20◦C induced Li inventory loss and did not cause kinetic degradation, whereas the exposure at 60◦C resulted in degradation in reaction kinetics. The article I really wanted Lithium Plating Behavior in Lithium-Ion Cells requires a subscription and the University will get it for me but I can't link to it. When I can I will summarize any useful inflrmation. On Mon, Jan 6, 2014 at 12:15 PM, Michael Ross <[email protected]>wrote: > This is probably the video to which David refered. > > http://lithiumbatteryresearch.com/Plating.php > > > On Mon, Jan 6, 2014 at 12:06 PM, Michael Ross <[email protected]>wrote: > >> Hi David, >> >> I hope you don't mind, I am doing sort of fact checking on this. I am >> blessed to be in close proximity to the FREEDM Center at the university >> here (http://www.freedm.ncsu.edu/) and they do a lot of work with >> lithium batteries, so I have people to quiz. >> >> I called the fellow there I have some acquaintance with, and asked about >> cold charging. He did not know of this Lithium plating, and couldn't think >> of a reason why there should be a problem. I asked specifically about >> LiFePO4. >> >> There are so many chemistries - do you know if the VW test was on some >> other chemistry? >> >> I will keep trying to learn more and pass it on. >> >> >> On Mon, Jan 6, 2014 at 9:45 AM, David Nelson <[email protected]> wrote: >> >>> Discharging below freezing is ok. Charging below freezing increases the >>> chance/rate of lithium plating. I'll try to find the VW battery research >>> video where they prove this and post it later. >>> SNIP >> >> -- >> Put this question to yourself: should I use everyone else to attain >> happiness, or should I help others gain happiness? >> *Dalai Lama * >> >> Tell me what it is you plan to do >> With your one wild and precious life? >> Mary Oliver, "The summer day." >> >> To invent, you need a good imagination and a pile of junk. >> Thomas A. >> Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> >> >> A public-opinion poll is no substitute for thought. >> *Warren Buffet* >> >> Michael E. Ross >> (919) 550-2430 Land >> (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google >> Phone >> (919) 631-1451 Cell >> (919) 513-0418 Desk >> >> [email protected] >> <[email protected]> >> >> >> > > > -- > Put this question to yourself: should I use everyone else to attain > happiness, or should I help others gain happiness? > *Dalai Lama * > > Tell me what it is you plan to do > With your one wild and precious life? > Mary Oliver, "The summer day." > > To invent, you need a good imagination and a pile of junk. > Thomas A. > Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> > > A public-opinion poll is no substitute for thought. > *Warren Buffet* > > Michael E. Ross > (919) 550-2430 Land > (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google > Phone > (919) 631-1451 Cell > (919) 513-0418 Desk > > [email protected] > <[email protected]> > > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140106/25bf746f/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
