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world’s first anode-free sodium solid-state battery – a breakthrough in inexpensive, clean, fast-charging batteries (pme.uchicago.edu)

submitted 1 month ago by [email protected] to c/[email protected]

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[–] [email protected] 22 points 1 month ago (2 children)

You skipped Ni-MH there, that was major for not having the memory problems of Ni-Cd. We still use those in AA and AAA rechargeable batteries.

[–] [email protected] 13 points 1 month ago (2 children)

Ni-MH production for EVs was effectively shutdown by Texaco and later Chevron through patent acquisitions.

https://en.m.wikipedia.org/wiki/Patent_encumbrance_of_large_automotive_NiMH_batteries

[–] gravitas_deficiency 2 points 1 month ago

Holy shit. I had no idea.

Chevron is pretty fucking evil for a lot of reasons, but we’ll add this one to the pile, I guess.

[–] [email protected] 2 points 1 month ago

totally TIL worthy

[–] [email protected] 5 points 1 month ago* (last edited 1 month ago) (1 children)

Ni-MH ~~is~~ was also in a lot of hybrid cars.

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

Are they still making NiMH hybrid packs?

Lithium is far superior

[–] [email protected] 4 points 1 month ago

I don't know in general. I was recently shopping for a UX 250h and I know they only just switched to lithium for the 2025 model with the nx name change.

Toyota switched the camry hybrid from NiMH to lithium for the 2020 model year.

In my head I meant hybrid cars on the road, not necessarily in new production.