Lithium iron phosphate batteries, which you mentioned in another comment, are a type of lithium ion battery that does not need cobalt. So are lithium titanate b

Lithium iron phosphate batteries, which you mentioned in another comment, are a type of lithium ion battery that does not need cobalt. So are lithium titanate batteries. You may have been confused by stories misleadingly touting these kinds of batteries as "alternatives to" lithium ion batteries. They're all subtypes of lithium ion battery. There's a good overview article here covering various subtypes of lithium ion batteries: https://batteryuniversity.com/article/bu-205-types-of-lithium-ion https://batteryuniversity.com/article/bu-205-types-of-lithiu...