The next bottleneck in lithium-ion battery supplies isn’t cobalt, even though China has a stranglehold on the market, and it’s not nickel, either, despite nickel prices nearly doubling in the past five months. Cobalt can be partially replaced with nickel, nickel can be partially replaced with manganese, and both can be completely replaced with iron…

Salty, subterranean water could relieve world’s lithium shortage