Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

I haven't received the article yet, but I suspect that they use that definition because they are more interested in SOHp, State of Health with regard to power output for hybrid applications. This is limited mainly by an increase in internal resistance, which results in the cells being driven to

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

On Nov 19, 2015, at 9:48 AM, EVDL Administrator via EV wrote: > Maybe non-plug hybrid designers really don't care about battery capacity > (though that woiuld surprise me). However, for true EVs, we definitely care > about usable capacity. It'll be a function of total

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

I found his list of publications at Penn State. I think I may be able to access copies. -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/A-math-formula-can-model-li-ion-pack-aging-Pyrite-pack-tp4678722p4678777.html Sent from the Electric Vehicle

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

Yes I would like to get a copy. Could you post a link? Thanks! -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/A-math-formula-can-model-li-ion-pack-aging-Pyrite-pack-tp4678722p4678775.html Sent from the Electric Vehicle Discussion List mailing list

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

No, you have to be a member. I can email it Sent from my Verizon Wireless 4G LTE smartphone Original message From: tomw via EV <ev@lists.evdl.org> Date: 11/19/2015 8:42 AM (GMT-06:00) To: ev@lists.evdl.org Subject: Re: [EVDL] A math formula can model li-ion pack

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

On 19 Nov 2015 at 1:31, paul dove via EV wrote: > Instead of defining > battery End of Life (EOL) as an arbitrary percent of capacity loss, we use the > cycle number when the battery voltage hits 3.6V/2V (maximum/minimum) voltage > limits. This is the practical limit of operation without reduced

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

The elevated temperature for Li-ion performance was known method at NEDRA PIR and Wayland invitationals like 10 yrs back. I was there and I kept telling this what we saw in our cell tests back then. Higher death rate too. NMC cells from TS at that time could be preheated with high current charging

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

I was speaking of performance Sent from my iPad > On Nov 17, 2015, at 3:29 PM, Lee Hart via EV wrote: > > Michael Ross via EV wrote: >> Years ago, before improvements in testing, that may have been applied to >> "work better," but definitely, high temps are not a recipe for

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

/"According to the researchers, this new simple aging formula takes into account only the factors shown to most influence lithium-ion battery aging by affecting growth of the SEI layer, which include state of charge, how often the battery charges/discharges completely, operating temperature, and

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

south.net>, Electric Vehicle Discussion List <ev@lists.evdl.org> Cc: Lee Hart <leeah...@earthlink.net> Subject: Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack The elevated temperature for Li-ion performance was known method at NEDRA PIR and Wayland invitatio

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

:25 AM Subject: Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack /"According to the researchers, this new simple aging formula takes into account only the factors shown to most influence lithium-ion battery aging by affecting growth of the SEI layer, which include state of

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

: brucedp5 via EV <ev@lists.evdl.org> Date: 11/17/2015 2:19 AM (GMT-06:00) To: ev@lists.evdl.org Subject: [EVDL] A math formula can model li-ion pack aging, Pyrite pack 'Cheap-materials fool’s-gold pyrite battery' http://www.idtechex.com/research/articles/simple-mathematical-formula-

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

. It's in one of his videos I watched. I don't remember > details but it was during all the Leaf problems in Arizona. > > Sent from my Verizon Wireless 4G LTE smartphone Original message > From: brucedp5 via EV <ev@lists.evdl.org> Date: 11/17/2015 2:19 > AM (G

[EVDL] A math formula can model li-ion pack aging, Pyrite pack

'Cheap-materials fool’s-gold pyrite battery' http://www.idtechex.com/research/articles/simple-mathematical-formula-models-lithium-ion-battery-aging-8646.asp?donotredirect=true Simple mathematical formula models lithium-ion battery aging Nov 11, 2015 Penn-StateU,Volvo Group Trucks

Re: [EVDL] A math formula can model li-ion pack aging, Pyrite pack

Michael Ross via EV wrote: Years ago, before improvements in testing, that may have been applied to "work better," but definitely, high temps are not a recipe for "works longer." This is true for *all* battery chemistries, as far as I know. Higher temperatures always increase their amphour