On Tuesday, May 31, 2022 at 12:25:01 PM UTC-4, Ed Lee wrote:> On Tuesday, May 31, 2022 at 8:15:31 AM UTC-7, Ricky wrote: > > On Tuesday, May 31, 2022 at 10:27:30 AM UTC-4, Ed Lee wrote: > > > On Tuesday, May 31, 2022 at 5:59:37 AM UTC-7, DecadentLinux...@decadence.org wrote: > > > > Sylvia Else <syl...@email.invalid> wrote in > > > > news:jfmf32...@mid.individual.net: > > > > > On 30-May-22 12:46 am, DecadentLinux...@decadence.org > > > > > wrote: > > > > >> This is way worse than any electric car situation could ever > > > > >> be... > > > > >> > > > > >> <https://www.youtube.com/watch?v=5r-yN8SugWM> > > > > > > > > > > Any energy containing system has the potential to release that > > > > > energy in an uncontrolled way if it is abused, or incorrectly > > > > > manufactured. > > > > > > > > > > What makes you think this one had a bad design? > > > > > > > > > > Sylvia. > > > > > > > > > Each "cell" in the battery at this size level should have had > > > > monitoring circuitry to cut it out of an overload condition. > > > > So the overload should have "sparked" a massive shutdown, not a massive > > > > meltdown. > > > We don't really know this situation. In case of the Bolt, manufacturing deflect causes short of a powerful cell. Cutting it off won't help. Smaller cells are safer in this regard. 18650 can be shorted and destroyed, but not exploded. > > Battery makers are trying to cut costs, and one way to do that is through larger cell sizes. I think VW, or BMW, not sure which, uses a cell about the size of a cigar box. I believe this also lets them give the cell more integrity without lowering the specific energy. > GM/Bolt cells are long thin rectangular pouch; so, in theory, should have better heat dissipation, other than the manufacturing defect. We have to give them credit for doing the right thing to recall (vehicle), replace (battery) and retool (factory). Let's wait and see.Oh, I can barely wait! It's like trying to get to sleep on the night before Christmas! -- Rick C. -- Get 1,000 miles of free Supercharging -- Tesla referral code - https://ts.la/richard11209
EV Battery Bank bad design
Started by ●May 29, 2022
Reply by ●May 31, 20222022-05-31