This research was published March 9 in Nature Energy: https://www.nature.com/articles/s41560-020-0575-z https://www.nature.com/articles/s41560-020-0575-z It a

This research was published March 9 in Nature Energy: https://www.nature.com/articles/s41560-020-0575-z https://www.nature.com/articles/s41560-020-0575-z It appears that the key advance is to prevent dendrite growth on the anode by covering it with a layer of silver-carbon composite. No idea why silver was chosen, but it seems to be in small enough amounts not to drive up the cost of the battery. Manufacturing this battery at large scales will require scaling up the process of producing the anode, which could take a while. It is still essentially a lithium-ion battery with the usual (cobalt-containing) cathode materials, but I see no reason the same anode technology couldn't be used with a cobalt-free cathode, should such cathodes ever catch on.