US 12,463,247 B2
Solid electrolyte material and battery using same
Kazufumi Miyatake, Osaka (JP); Yusuke Nishio, Osaka (JP); Takashi Kubo, Hyogo (JP); Tetsuya Asano, Nara (JP); and Akihiro Sakai, Nara (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Sep. 13, 2022, as Appl. No. 17/931,564.
Application 17/931,564 is a continuation of application No. PCT/JP2021/002515, filed on Jan. 25, 2021.
Claims priority of application No. 2020-064821 (JP), filed on Mar. 31, 2020.
Prior Publication US 2023/0006247 A1, Jan. 5, 2023
Int. Cl. H01M 10/0562 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 10/0525 (2013.01); H01M 2300/0068 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A solid electrolyte material comprising: Li, Ca, Y, Sm, X, and O, wherein
X is at least one selected from the group consisting of F, Cl, Br, and I;
a molar ratio of O to the sum of Y and Sm in a surface region of the solid electrolyte material is higher than a molar ratio of O to the sum of Y and Sm in the entire solid electrolyte material; and
the molar ratio of O to the sum of Y and Sm in the entire solid electrolyte material is greater than 0 and 0.37 or less.