	US 12,278,332 B2
	Lithium metal nitrides as lithium super-ionic conductors
Yifei Mo, Fulton, MD (US); Qiang Bai, College Park, MD (US); Alexander Epstein, Berkeley, CA (US); Chen Ling, Ann Arbor, MI (US); and Ying Zhang, Ann Arbor, MI (US)
Assigned to UNIVERSITY OF MARYLAND COLLEGE PARK, College Park, MD (US); and TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US)
Filed by UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US); and TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US)
Filed on Dec. 22, 2022, as Appl. No. 18/145,036.
Application 18/145,036 is a division of application No. 16/155,349, filed on Oct. 9, 2018, granted, now 11,581,572.
Prior Publication US 2023/0129063 A1, Apr. 27, 2023
Int. Cl. H01M 10/0562 (2010.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)

CPC H01M 10/0562 (2013.01) [H01M 4/366 (2013.01); H01M 4/58 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0068 (2013.01)]

8 Claims

1. A solid-state lithium ion electrolyte, comprising:

at least one material selected from the group of compounds of formulae (V), (VI), and (VII):

Li_y(M1)_x1ScN₂ (V)

wherein x1 is a number from greater than 0 to less than 3, y is a value such that charge neutrality is obtained, and M1 is at least one element different from Li selected from elements of groups 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13;

Li_ySc_1-x2(M2)_x2N₂ (VI)

wherein x2 is a number from greater than 0 to less than 1, y is a value such that charge neutrality is obtained, and M2 is at least one element different from Sc selected from elements of groups 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16 and 17; and

Li_yScN_2-x3(X)_x3 (VII)

wherein x3 is a number from greater than 0 to less than 2, y is a value such that charge neutrality is obtained, and X is at least one element different from N selected from elements of groups 15, 16 and 17.