US 11,735,739 B2
Passivation materials on alkaline earth metals
Betar Gallant, Cambridge, MA (US); and Aaron Melemed, Cambridge, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Jan. 29, 2021, as Appl. No. 17/163,036.
Claims priority of provisional application 63/002,007, filed on Mar. 30, 2020.
Prior Publication US 2021/0305577 A1, Sep. 30, 2021
Int. Cl. H01M 4/62 (2006.01); H01M 10/054 (2010.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01)
CPC H01M 4/628 (2013.01) [H01M 4/134 (2013.01); H01M 4/381 (2013.01); H01M 10/054 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery comprising:
an electrode comprising an alkaline earth metal; and
a passivation material in direct contact with the electrode, wherein the passivation material comprises an alkaline earth fluoride in an amount greater than or equal to 90 mol. % based on a total number of moles in the passivation material.