Does DC fast charging damage batteries?

[stanggt50]

Hello, I'm just curious that true DC fast charging will destroy the EV battery. ?‍ here 2 links

https://thenextweb.com/shift/2020/0...s-electric-vehicle-batteries-tesla-panasonic/

https://www.imeche.org/news/news-ar...mage-electric-car-batteries-in-just-25-cycles

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[EVer]

Destroy? No. Limit their life? Yes. Worth concern? No.

 

[ajmartineau]

Think of it as extra wear. Like not changing your oil. Tesla is the only DCFC heavy battery with enough data to know the full extent of how hard it is on the battery. They use a different type of cell so makes the comparison more complex.

 

[theo1000]

Think of it as extra wear. Like not changing your oil. Tesla is the only DCFC heavy battery with enough data to know the full extent of how hard it is on the battery. They use a different type of cell so makes the comparison more complex.

This is not true. The BMW I3 has had DCFC fast charges for over 8 years now and the Volt technically charges similar to 40 kw at cell level for a 90kwh type battery. which is similar to DCFC. Almost all new EV's are based on these (2) experienced engineering bases. for reference the 24wh (18 kwh) usable BMW I3 charged at 50 kw back in 2012. This is the equivalent of 200-250 kw charging on a modern 90 kwh battery! Even now modern batteries struggle to maintain that charge level at cell level.

The TSLA experience curve is oddly largely inapplicable for non-TSLA EV's. The nissan leaf air cooled design seems to have died on the vine. No one is advancing that one. The old RAV-4 EV design w/ NMC cells air cooled has also died. I loved that car. NMC is such a durable design, pity about all the draw backs.

 

[SnBGC]

Hello, I'm just curious that true DC fast charging will destroy the EV battery. ?‍ here 2 links

https://thenextweb.com/shift/2020/0...s-electric-vehicle-batteries-tesla-panasonic/

https://www.imeche.org/news/news-ar...mage-electric-car-batteries-in-just-25-cycles

The less heat while charging the better. All charging is DC of course.....the faster the charge the more heat is generated. If the heat can be managed well enough then the battery won't be affected as much.

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