# US 10,312,514 B2 · Positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, and lithium secondary battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,514 B2 - Document ID: US10312514B2 - Status: Granted - Kind: B2 - Application number: 15/327,432 - Filed: 2015-07-22 - Published: 2017-05-18 - Granted: 2019-06-04 - Earliest claimed: 2014-07-22 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Ryuta Sugiura - Web page: https://patentgrep.com/patent/US10312514B2 ## CPC - H01M 4/525: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy - C01G 53/54: of the type (Mn2O4)-, e.g. Li(NixMn2-x)O4 or Li(MyNixMn2-x-y)O4 - H01M 4/1315: containing halogen atoms, e.g. LiCoOxFy - H01M 4/505: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy - H01M 10/052: Li-accumulators - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - C01P 2002/32: spinel-type (AB2O4) - C01P 2004/61: Micrometer sized, i.e. from 1-100 micrometer - C01P 2006/40: Electric properties - H01M 4/13915: containing halogen atoms, e.g. LiCoOxFy - H01M 2004/028: {Positive electrodes} - 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) - 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 A positive electrode active material for a lithium secondary battery includes a lithium transition metal complex oxide that has a spinel crystalline structure. This lithium transition metal complex oxide includes: manganese and nickel as main transition metal elements; titanium and iron as additive transition metal elements; and oxygen and fluorine. ## Claims ### Claim 1 A positive electrode active material for a lithium secondary battery, the positive electrode active material comprising a lithium transition metal complex oxide having a spinel crystalline structure, wherein the lithium transition metal complex oxide includes: manganese and nickel as main transition metal elements; titanium and iron as additive transition metal elements; and oxygen and fluorine, wherein the lithium transition metal complex oxide is represented by a following general formula (I): LixMn2-a-b-c-dNiaTibFecMdO4-yFy (I) wherein M is at least one element selected from the group consisting of Al, Si, Mg, Ca, Ba, Sr, Sc, V, Cr, Co, Cu, Zn, Ga, Y, Ru Rh, Pd, In, Sn, Sb, La, Ce, Sm, Zr, Nb, Ta, Mo, W, B, C, P, and S, 0.9≤x≤1.3, 0.0005≤y≤0.1, 0.4≤a≤0.5, 0