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Samsung’s 20-year-life EV battery runs 600 miles on 9-minute charge (interestingengineering.com)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 10 points 3 months ago (1 children)

Does fast charging reduce the lifespan of a battery like this? The headline is bothersome because my suspicion is it won't last 20 years if you fast charge all of the time and whatnot. I realize that's not a typical case but it's good to understand the trade-offs.

[–] [email protected] 7 points 3 months ago

The chemistry is substantially different, so we'll probably have to wait until scientists run some tests to get a more precise set of parameters that affect degradation. I expect failure modes like dendrites are basically impossible with solid-state, but electrode cracking is still possible. There might even be new and exciting ways they can degrade! Regardless, this is still great news.

Engineering Explained has a good summary: https://youtu.be/w4lvDGtfI9U (Piped link: https://piped.video/watch?v=w4lvDGtfI9U)