Researchers also tested lithium- and manganese-rich layered oxide (LMRO) cathodes for sulfide-based solid-state batteries. With a special coating applied to prevent oxidization of the sulfide electrolyte, SK On claims to have reached a satisfactory life cycle for these cells.

The deal, with Norway’s Vianode, is for delivery of a material critical for electric-vehicle batteries.

Key Takeaways GM reached a deal with EV battery materials company Vianode to supply the automaker with synthetic anode graphite.Anode graphite is the largest material by weight in lithium-ion batteries,