Peter, Your link works. Not sure why my first attempt didn't.
On Tue, Mar 17, 2020 at 1:17 PM Peter C. Thompson via EV <ev@lists.evdl.org> wrote: > > I just tried this link: > https://news.ucr.edu/articles/2020/03/11/fast-charging-damages-electric-car-batteries > > Seems to work for me. > > On 3/17/20 10:03 AM, Peter Eckhoff via EV wrote: > > The article is now linking to "Page Not Found". > > > > > > On Tue, Mar 17, 2020 at 12:52 PM Peter C. Thompson via EV > > <ev@lists.evdl.org> wrote: > >> Hi Peri, > >> > >> I don't have personal experience with Tesla, but I do with other OEMs. > >> It is very safe to say that the BMS is preventing just that sort of > >> problem. > >> > >> When I read the article, it was about testing to destruction, not about > >> how to do safe, long-term charging. Yeah, FUD again. > >> > >> I agree that reading history NOW is much more enjoyable, probably > >> because we aren't reading those "sanitized" history books from high > >> school. :) > >> > >> Cheers! > >> > >> On 3/17/20 9:36 AM, Peri Hartman wrote: > >>> Thanks ! So, is it reasonably safe to say, especially with Tesla, that > >>> the BMS is preventing the kind of excess rapid charging demonstrated > >>> in the article ? It seems preposterous that significant damage is > >>> occurring to EV batteries. (I know it will cause slow, long term > >>> damage.) In which case, the article is intended to scare people and, > >>> perhaps, funded by you know who. I looked at the article again, but > >>> there's nothing ominous in the funding list. > >>> > >>> Insomnia: I laugh. When I was in high school, if I had insomnia > >>> (rarely), I remember I simply opened my history book and was asleep in > >>> a few minutes. (I really enjoy history, now, by the way.) > >>> > >>> Peri > >>> > >>> ------ Original Message ------ > >>> From: "Peter C. Thompson via EV" <ev@lists.evdl.org> > >>> To: ev@lists.evdl.org > >>> Cc: "Peter C. Thompson" <pe...@cruzware.com> > >>> Sent: 17-Mar-20 8:51:08 AM > >>> Subject: Re: [EVDL] DC charging damages EV packs (?fact or anti-EV-hype?) > >>> > >>>> Ah, finally, an area where I am an expert. :) > >>>> > >>>> The communication is defined in ISO 15118-2, the transport layers are > >>>> in 15118-3 (PLC) and 15118-8 (wifi). No one is using the wifi version > >>>> for DC - only for wireless power. > >>>> > >>>> However, nowhere in the spec does the battery temp get sent. There is > >>>> a warning when the battery is over temp, but that's about it. > >>>> Most of the time, the job of protecting the battery is the BMS. The > >>>> BMS tells the EV-side charger how much power it can accept, and when > >>>> to throttle power. > >>>> > >>>> Part of this is that the OEMs think that any info about the battery > >>>> is confidential information. Which is why SoC is optional, and not > >>>> always sent to the charger. > >>>> > >>>> And yes, you are absolutely correct, Peri: you DON'T want to read > >>>> these specs... they are a very good cure for insomnia. > >>>> > >>>> Cheers, Peter > >>>> > >>>> On 3/17/20 7:05 AM, Peri Hartman via EV wrote: > >>>>> Do you know more, yourself ? I don't really want to study the spec :) > >>>>> Peri > >>>>> > >>>>> ------ Original Message ------ > >>>>> From: "paul dove" <dov...@bellsouth.net> > >>>>> To: "Peri Hartman" <pe...@kotatko.com>; "Electric Vehicle Discussion > >>>>> List" <ev@lists.evdl.org> > >>>>> Sent: 17-Mar-20 4:52:28 AM > >>>>> Subject: Re: [EVDL] DC charging damages EV packs (?fact or > >>>>> anti-EV-hype?) > >>>>> > >>>>>> DC fast chargers use HCL defined in ISO 15118-8 Specification. > >>>>>> > >>>>>> Volume eight is the physical and data link layer > >>>>>> > >>>>>> Sent from my iPhone > >>>>>> > >>>>>>> On Mar 16, 2020, at 11:42 PM, Peri Hartman via EV > >>>>>>> <ev@lists.evdl.org> wrote: > >>>>>>> > >>>>>>> I thought the level 3 chargers took into account cell temperature > >>>>>>> and other conditions. I know, for example, that my almost 10 year > >>>>>>> old Leaf battery charges at only about 10kw now. Something is > >>>>>>> communicating. > >>>>>>> > >>>>>>> Peri > >>>>>>> > >>>>>>> ------ Original Message ------ > >>>>>>> From: "evln via EV" <ev@lists.evdl.org> > >>>>>>> To: ev@lists.evdl.org > >>>>>>> Cc: "evln" <e...@gmx.us> > >>>>>>> Sent: 16-Mar-20 12:57:21 PM > >>>>>>> Subject: [EVDL] DC charging damages EV packs (?fact or anti-EV-hype?) > >>>>>>> > >>>>>>>> > >>>>>>>> https://news.ucr.edu/articles/2020/03/11/fast-charging-damages-electric-car-batteries > >>>>>>>> > >>>>>>>> Fast-charging damages electric car batteries > >>>>>>>> Commercial fast-charging stations subject electric car batteries > >>>>>>>> to high > >>>>>>>> temperatures and high resistance that can cause them to crack, > >>>>>>>> leak, and > >>>>>>>> lose their ... > >>>>>>>> https://news.ucr.edu/sites/g/files/rcwecm1816/files/styles/news_article_featured_l/public/2020-03/broken%20Tesla%20battery.jpg > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> + > >>>>>>>> https://www.latimes.com/business/story/2020-03-03/southern-california-ev-jobs > >>>>>>>> > >>>>>>>> The electric-vehicle industry is thriving in Southern California, > >>>>>>>> report > >>>>>>>> says > >>>>>>>> 2020-03-03 California is already a world leader in the embryonic > >>>>>>>> electric > >>>>>>>> vehicle industry but needs more government help to flourish, > >>>>>>>> according to a > >>>>>>>> new report from the Los ... > >>>>>>>> https://ca-times.brightspotcdn.com/dims4/default/b3308bf/2147483647/strip/true/crop/2048x1152+0+0/resize/840x473!/quality/90/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2F0f%2F14%2F66195340cd40e6cdeb681fd96501%2Fla-1497909600-8tndt61ti7-snap-image > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >> _______________________________________________ > >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > >> ARCHIVE: http://www.evdl.org/archive/index.html > >> INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > >> Please discuss EV drag racing at NEDRA > >> (http://groups.yahoo.com/group/NEDRA) > >> > > _______________________________________________ > > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > > ARCHIVE: http://www.evdl.org/archive/index.html > > INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/index.html > INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/index.html INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
