# US 7,608,363 B2 · Non-aqueous electrolyte secondary battery with vinylene carbonate and divinyl sulfone containing electrolyte > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,608,363 B2 - Document ID: US7608363B2 - Status: Granted - Kind: B2 - Application number: 11/140,064 - Filed: 2005-05-31 - Published: 2006-05-18 - Granted: 2009-10-27 - Earliest claimed: 2004-11-16 - Assignees: Sanyo Electric Co., Ltd. - Inventors: Akira Kinoshita; Hiroyuki Fujimoto; Yasufumi Takahashi; Shingo Tode; Kazuhiro Hasegawa; Shin Fujitani - Web page: https://patentgrep.com/patent/US7608363B2 ## CPC - H01M 4/485: of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) - H01M 4/131: Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx - H01M 4/366: {as layered products} - H01M 4/505: of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy - 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 - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/0568: characterised by the solutes - H01M 10/0569: characterised by the solvents - H01M 4/1391: of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx - H01M 4/587: for inserting or intercalating light metals - H01M 2010/4292: {Aspects relating to capacity ratio of electrodes/electrolyte or anode/cathode} - H01M 2300/0025: Organic electrolyte - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A non-aqueous electrolyte secondary battery including a positive electrode containing a positive active material, a negative electrode containing a negative active material and a non-aqueous electrolyte, characterized in that lithium transition metal complex oxide A formed by allowing LiCoO2 to contain at least both of Zr and Mg and lithium transition metal complex oxide B having a layered structure and containing at least both of Mn and Ni as transition metals are mixed and used as said positive active material, and vinylene carbonate and divinyl sulfone are contained in said non-aqueous electrolyte. ## Claims ### Claim 1 A non-aqueous electrolyte secondary battery including a positive electrode containing a positive active material, a negative electrode containing a negative active material and a non-aqueous electrolyte, characterized in that lithium transition metal complex oxide A formed by allowing LiCoO2 to contain at least both of Zr and Mg and lithium transition metal complex oxide B having a layered structure and containing at least both of Mn and Ni as transition metals are mixed and used as said positive active material, and vinylene carbonate and divinyl sulfone are contained in said non-aqueous electrolyte. ### Claim 2 (depends on 1) The non-aqueous electrolyte secondary battery according to claim 1, characterized in that 1,4-butanedioldimethanesulfonate is further contained in said non-aqueous electrolyte. ### Claim 3 (depends on 1) The non-aqueous electrolyte secondary battery according to claim 1, characterized in that the content of said vinylene carbonate is 0.5 to 5% by weight with respect to the entire non-aqueous electrolyte. ### Claim 4 (depends on 1) The non-aqueous electrolyte secondary battery according to claim 1, characterized in that the content of said divinyl sulfone is 0.1 to 1% by weight with respect to the entire non-aqueous electrolyte. ### Claim 5 (depends on 2) The non-aqueous electrolyte secondary battery according to claim 2, characterized in that the content of said 1,4-butanedioldimethanesulfonate is 0.1 to 1.5% by weight with respect to the entire non-aqueous electrolyte. ### Claim 6 (depends on 1) The non-aqueous electrolyte secondary battery according to claim 1, characterized in that a solvent of said non-aqueous electrolyte is a mixed solvent of a cyclic carbonate and a chain carbonate and an amount of the cyclic carbonate in the mixed solvent is 20 to 30% by volume. ### Claim 7 (depends on 1) The non-aqueous electrolyte secondary battery according to claim 1, characterized in that Zr contained in said lithium transition metal complex oxide A adheres to the surface of the lithium transition metal complex oxide A in the form of a particle as a compound of Zr. ### Claim 8 (depends on 1) The non-aqueous electrolyte secondary battery according to claim 1, characterized in that said lithium transition metal complex oxide B is expressed by a chemical formula: LibMnsNitCouO2, wherein b, s, t and u are numerals satisfying equations of 0≦b≦1.2, s+t+u=1, 0