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EV Batteries Can Outlast A Vehicle’s Lifetime With Minimal Degradation, Study Finds - The battery degradation rate in modern EVs has gone down by almost a quarter in the past five years. (insideevs.com)

submitted 2 months ago by Lugh to c/futurology

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[–] someguy3@lemmy.world 12 points 2 months ago* (last edited 2 months ago) (8 children)

A 1.8% annual degradation rate means that in 20 years, the battery of an EV would theoretically still have 64% life in it. In other words, it could still theoretically achieve 64% of its original range figures. So in the case of a Tesla Model Y Long Range All-Wheel Drive, one of the best-selling EVs in the world, its original 320-mile range would go down to 204.8 miles, which would still be plenty for town driving or even short road trips.

What’s more, Geotab said that highly used EVs don’t show increased battery degradation rates, meaning more value can be achieved the more they are driven.

I would like to actual numbers like how many hundreds of thousands of miles.

And car drivechains should last a long friggin time so these headlines of battery outlasts car are stupid and inaccurate.

[–] jonc211@programming.dev 5 points 2 months ago

An annual degradation of 1.8% over 20 years gives more than 69% capacity the end of the period, so it’s better than what you posted.

Each year, you have 0.982 of the previous year’s capacity (1 - 0.018), so the capacity at the end of the 20 years is 0.982 ^ 20.

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