# US 2021/0242494 A1 · Solid electrolyte material and battery using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242494 A1 - Document ID: US20210242494A1 - Status: Published application - Kind: A1 - Application number: 17/237,007 - Filed: 2021-04-21 - Published: 2021-08-05 - Earliest claimed: 2018-12-28 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: YOSHIAKI TANAKA; AKIHIRO SAKAI; TETSUYA ASANO; AKINOBU MIYAZAKI - Web page: https://patentgrep.com/patent/US20210242494A1 ## CPC - H01M 10/0562: Solid materials - C01G 33/006: {Compounds containing niobium, with or without oxygen or hydrogen, and containing two or more other elements} - C01G 35/006: {Compounds containing tantalum, with or without oxygen or hydrogen, and containing two or more other elements} - H01B 1/06: mainly consisting of other non-metallic substances - H01B 1/08: oxides - H01M 10/052: Li-accumulators - C01P 2002/50: Solid solutions - C01P 2002/72: by d-values or two theta-values, e.g. as X-ray diagram - C01P 2006/32: Thermal properties - C01P 2006/40: Electric properties - H01M 2300/0071: Oxides - H01M 2300/008: Halides - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - C01G: COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F (metal hydrides {monoborane, diborane or addition complexes thereof} C01B6/00; salts of oxyacids of halogens C01B11/00; peroxides, salts or peroxyacids C01B15/00; thiosulfates, dithionites, polythionates C01B17/64; compounds containing selenium, or tellurium C01B19/00; binary compounds of nitrogen with metals C01B21/06; azides C01B21/08; {compounds containing nitrogen, other non-metals and metal C01B21/082}; metal amides C01B21/092; nitrites C01B21/50; {compounds of noble gases C01B23/0005}; phosphides C01B25/08; salts of oxyacids of phosphorus C01B25/16; carbides C01B32/90; compounds containing silicon C01B33/00; compounds containing boron C01B35/00; compounds having molecular sieve properties but not having base-exchange properties C01B37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B39/00; cyanides C01C3/08; salts of cyanamide C01C3/16; thiocyanates C01C3/20) - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract The present disclosure provides solid electrolyte materials having high lithium ion conductivity. A solid electrolyte material according to the present disclosure consists essentially of Li, M, O, and X. M is at least one element selected from the group consisting of Nb and Ta. X is at least one element selected from the group consisting of Cl, Br, and I. ## Claims ### Claim 1 A solid electrolyte material consisting essentially of Li, M, O, and X, wherein M is at least one element selected from the group consisting of Nb and Ta, and X is at least one element selected from the group consisting of Cl, Br, and I. ### Claim 2 (depends on 1) The solid electrolyte material according to claim 1, wherein X is at least one element selected from the group consisting of Cl and Br. ### Claim 3 (depends on 1) The solid electrolyte material according to claim 1, wherein X includes Cl. ### Claim 4 (depends on 1) The solid electrolyte material according to claim 1, wherein the solid electrolyte material has a first crystalline phase, the first crystalline phase corresponding to a peak in an X-ray diffraction pattern of the solid electrolyte material obtained by an X-ray diffraction measurement with Cu-Kα radiation, the peak existing in at least one of a first range or a second range, the first range being a range of a diffraction angle 2θ of greater than or equal to 12.9° and less than or equal to 14.1°, and the second range being a range of the diffraction angle 2θ of greater than or equal to 24.0° and less than or equal to 25.8°. ### Claim 5 (depends on 4) The solid electrolyte material according to claim 4, wherein the peak exists in both the first range and the second range. ### Claim 6 (depends on 4) The solid electrolyte material according to claim 4, wherein the solid electrolyte material further has a second crystalline phase, the second crystalline phase being different from the first crystalline phase. ### Claim 7 (depends on 1) The solid electrolyte material according to claim 1, wherein a molar ratio Li/M, which is a molar ratio of Li to M, is greater than or equal to 1.0 and less than or equal to 2.0. ### Claim 8 (depends on 1) The solid electrolyte material according to claim 1, wherein a molar ratio O/X, which is a molar ratio of O to X, is greater than or equal to 0.1 and less than or equal to 0.25. ### Claim 9 (depends on 1) The solid electrolyte material according to claim 1, wherein the solid electrolyte material has a third crystalline phase, the third crystalline phase corresponding to a peak in an X-ray diffraction pattern of the solid electrolyte material obtained by an X-ray diffraction measurement with Cu-Kα radiation, the peak existing in a third range, and the third range being a range of a diffraction angle 2θ of greater than or equal to 12.3° and less than or equal to 15.3°. ### Claim 10 (depends on 9) The solid electrolyte material according to claim 9, wherein the solid electrolyte material further has a fourth crystalline phase, the fourth crystalline phase being different from the third crystalline phase. ### Claim 11 (depends on 1) The solid electrolyte material according to claim 1, wherein the solid electrolyte material is represented by composition formula (1) below, LixMOyX(5+x−2y) (1) wherein the following relationships are satisfied: 0.1