Cobalt and nickel are not the only materials that can fulfill the functions they cover. There are a couple of things worth noting here: 1. "Lithium Ion" descri

Cobalt and nickel are not the only materials that can fulfill the functions they cover. There are a couple of things worth noting here: 1. "Lithium Ion" describes a family of batteries, with varying chemical compositions. As an example, the battery in the Nissan Leaf uses no cobalt in its cathode: https://qnovo.com/inside-the-battery-of-a-nissan-leaf/ https://qnovo.com/inside-the-battery-of-a-nissan-leaf/ "It uses a different material for the cathode called lithium-manganese-oxide with nickel oxide (LiMn2O4 with LiNiO2) that is inherently safer than the lithium-cobalt-oxide cathode material" 2. There are other battery chemistries outside of the Lithium Ion family, in varying states of maturity, that could (in time) become competitive with Lithium Ion in the electric car market. To give one example: https://en.wikipedia.org/wiki/Lithium%E2%80%93air_battery https://en.wikipedia.org/wiki/Lithium%E2%80%93air_battery