Gigafactories are recycling old EV batteries into new ones

Re:Gigafactories are recycling old EV batteries into new ones by franciscop on Sunday October 30, 2022 @05:48AM (#33392861)

30%-50% loses for a well-used 15-year-old lithium battery seems reasonable. Depending on the charge/discharge cycles and depth of them, it can last a lot more or a lot less, see tables and graphs e.g. here:

https://batteryuniversity.com/article/bu-808-how-to-prolong-...

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Re:Gigafactories are recycling old EV batteries into new ones by oittaa on Sunday October 30, 2022 @06:05AM (#33392962)

I think you have a pretty big misunderstanding if you think that electric cars are driven like petrol cars where you always charge to 100% and then don't charge until the battery is at 0%.

Your link has a graph[1] that indicates that while using 75%-25% charging states, which is what most of the electric cars use by default, you would get 10 000 cycles and still retain 80% of the original capacity. On a 500km range electric car, like that hypothetical Tesla Model 3, that would be 80% capacity left after 2 500 000km. You can Google quite easily that there are for example Tesla Model S cars with over a million kilometers driven.

[1] https://batteryuniversity.com/img/content/capacity-retention...

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