US 12,438,187 B2
Solid electrolyte and all solid state battery
Ryohei Takano, Nagaokakyo (JP); Makoto Yoshioka, Nagaokakyo (JP); Akisuke Ito, Nagaokakyo (JP); and Takeo Ishikura, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Mar. 1, 2024, as Appl. No. 18/592,805.
Application 18/592,805 is a continuation of application No. 16/702,917, filed on Dec. 4, 2019, granted, now 11,955,596.
Application 16/702,917 is a continuation of application No. PCT/JP2018/031938, filed on Aug. 29, 2018.
Claims priority of application No. 2017-165458 (JP), filed on Aug. 30, 2017; and application No. 2017-218078 (JP), filed on Nov. 13, 2017.
Prior Publication US 2024/0250298 A1, Jul. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0562 (2010.01); H01M 4/38 (2006.01); H01M 4/46 (2006.01); H01M 50/431 (2021.01); H01M 50/434 (2021.01); H01M 4/02 (2006.01)
CPC H01M 10/0562 (2013.01) [H01M 4/382 (2013.01); H01M 4/463 (2013.01); H01M 4/466 (2013.01); H01M 50/431 (2021.01); H01M 50/434 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0068 (2013.01); H01M 2300/0071 (2013.01); H01M 2300/0091 (2013.01)] 9 Claims
 
1. A solid electrolyte comprising:
a first lithium ion conductive material having a garnet-type structure;
a second lithium ion conductive material having a LISICON-type structure, wherein the second lithium ion conductive material having the LISICON-type structure excludes Li4SiO4; and
an oxide containing Li and B,
wherein, when a volume ratio of the lithium ion conductive material having the garnet-type structure is X, a volume ratio of the lithium ion conductive material having the LISICON-type structure is Y, and a volume ratio of the compound containing Li and B is Z, 10%≤X≤89.5%, 10%≤Y≤89.5%, 0.5%≤Z≤30%, and X+Y+Z≤100%.