There's actually a startup, TexPower, that is working on a cobalt-free lithium-nickel battery: https://innovation.uh.edu/companies/texpower https://innovation.

There's actually a startup, TexPower, that is working on a cobalt-free lithium-nickel battery: https://innovation.uh.edu/companies/texpower https://innovation.uh.edu/companies/texpower The founder, Arumugam Manthiram, published several papers on the topic, introducing promising new chemistries: https://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202002718 https://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.2020027... (nickel-manganese-aluminium) https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/aenm.202102421 https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/aenm.2... (nickel-aluminium-titanium-magnesium) https://pdf.sciencedirectassets.com/313056/1-s2.0-S2405829720X00092/1-s2.0-S2405829720303731/am.pdf https://pdf.sciencedirectassets.com/313056/1-s2.0-S240582972... (review) Seems promising. The lead candidate previously for matching cobalt without the cobalt was lithium-vanadium-phosphate, but it has a variable voltage output that makes it difficult to work with.