US 11,710,825 B2
Metal carbides and metal nitrides for a fluoride ion battery
Scott C. Warren, Chapel Hill, NC (US); Daniel L. Druffel, Carrboro, NC (US); Jacob Pawlik, Burlington, NC (US); Adam H. Woomer, Durham, NC (US); Qingmin Xu, Dublin, OH (US); Kaoru Omichi, Tochigi (JP); and Christopher Brooks, Dublin, OH (US)
Assigned to The University of North Carolina at Chapel Hill, Chapel Hill, NC (US); and Honda Motor Co., Ltd., Tokyo (JP)
Filed by The University of North Carolina at Chapel Hill, Chapel Hill, NC (US); and Honda Motor Co., Ltd., Tokyo (JP)
Filed on Nov. 18, 2020, as Appl. No. 16/951,769.
Claims priority of provisional application 62/937,051, filed on Nov. 18, 2019.
Prior Publication US 2021/0151755 A1, May 20, 2021
Int. Cl. H01M 4/58 (2010.01); H01M 10/05 (2010.01); C01B 32/914 (2017.01)
CPC H01M 4/58 (2013.01) [C01B 32/914 (2017.08); H01M 10/05 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electrochemically active structure comprising a crystalline electride comprising:
a nitride or carbide of at least one of: an alkaline earth metal, a transition metal, a lanthanide metal, or a combination thereof,
wherein the electride has a lattice capable of intercalating at least one anion, thereby releasing at least one electron into an external circuit; and
wherein a change in lattice volume of the electride upon intercalating the at least one anion is less than about 40%.