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> I’ve been wondering why we don’t concentrate on sodium batteries instead of lithium for EVs. They’re heavier but is that really a problem? Sodium batteries s
by csours 4y ago
> I’ve been wondering why we don’t concentrate on sodium batteries instead of lithium for EVs. They’re heavier but is that really a problem?
Sodium batteries suitable for EVs don't really exist yet.
> Today’s cars are heavy as hell, there must be ways to make lighter vehicles that balance the weight of sodium, no?
You can make them slower, smaller, and shorter range. You can add lightness with things like aluminum and composites, but those are rather expensive. No you really can't remove enough weight and maintain the same form factor and user experience.
Batteries have been consistently coming down in price. This is the one thing that capitalism is good at, I feel quite sure that batteries will continue to come down in price. There are still huge advances being made every day in the lab; wait 5 years or so and those upgrades will be in commercial production.
If a sodium chemistry can prove itself to be the best, it will be used. Research institutions and industry are trying multiple parallel tracks