# US 12,113,173 B2 · Non-aqueous electrolyte including additive for non-aqueous electrolyte and lithium secondary battery including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,173 B2 - Document ID: US12113173B2 - Status: Granted - Kind: B2 - Application number: 18/574,964 - Filed: 2022-09-29 - Published: 2024-08-15 - Granted: 2024-10-08 - Earliest claimed: 2021-09-30 - Assignees: LG Energy Solution, Ltd. - Applicants: LG Energy Solution, Ltd. - Inventors: Hyung Tae Kim; Chul Haeng Lee; Jeong Woo Oh; Byung Chun Park; Young Mi Seo; Sung Guk Park - Web page: https://patentgrep.com/patent/US12113173B2 ## CPC - H01M 10/052: Li-accumulators - H01M 10/0567: characterised by the additives - C07D 207/335: Radicals substituted by nitrogen atoms not forming part of a nitro radical - 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 2300/0037: Mixture of solvents - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A non-aqueous electrolyte including an additive represented by Formula 1 is described: wherein in Formula 1, R may be any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, R1 and R2 may each independently be any one selected from the group consisting of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, and A may be an alkylene group having 1 to 5 carbon atoms. ## Claims ### Claim 1 A non-aqueous electrolyte comprising an additive represented by Formula 1: wherein in Formula 1, R is any one selected from the group consisting of an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, R1 and R2 are each independently any one selected from the group consisting of hydrogen (H), an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkynyl group having 2 to 10 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, and a cycloalkenyl group having 3 to 12 carbon atoms, and A is an alkylene group having 1 to 5 carbon atoms. ### Claim 2 (depends on 1) The non-aqueous electrolyte of claim 1, wherein R1 and R2 in Formula 1 are H. ### Claim 3 (depends on 1) The non-aqueous electrolyte of claim 1, wherein R in Formula 1 is an alkyl group having 1 to 10 carbon atoms. ### Claim 4 (depends on 1) The non-aqueous electrolyte of claim 1, wherein the additive represented by Formula 1 is a compound represented by Formula 1-1: wherein; in Formula 1-1, R is an alkyl group having 1 to 10 carbon atoms, and A is an alkylene group having 1 to 5 carbon atoms. ### Claim 5 (depends on 1) The non-aqueous electrolyte of claim 1, wherein the additive represented by Formula 1 is a compound represented by Formula 1-2 ### Claim 6 (depends on 1) The non-aqueous electrolyte of claim 1, wherein the additive is included in an amount of 0.01 part by weight to 5 parts by weight based on 100 parts by weight of the non-aqueous electrolyte. ### Claim 7 (depends on 1) The non-aqueous electrolyte of claim 1, further comprising LiPF6 as a lithium salt. ### Claim 8 (depends on 7) The non-aqueous electrolyte of claim 7, wherein the LiPF6 is included in a concentration of 0.5 M to 4 M. ### Claim 9 (depends on 7) The non-aqueous electrolyte of claim 7, further comprising at least a second lithium salt selected from LiCl, LiBr, LiI, LiBF4, LiClO4, LiB10Cl10, LiAlCl4, LiAlO2, LiCF3SO3, LiCH3CO2, LiCF3CO2, LiAsF6, LiSbF6, LiCH3SO3, LiN(SO2F)2, LiN(SO2CF2CF3)2, or LiN(SO2CF3)2. ### Claim 10 (depends on 1) The non-aqueous electrolyte of claim 1, further comprising an organic solvent. ### Claim 11 (depends on 10) The non-aqueous electrolyte of claim 10, wherein the organic solvent comprises at least one of a cyclic carbonate-based organic solvent, a linear carbonate-based organic solvent, a linear ester-based organic solvent, or a cyclic ester-based organic solvent. ### Claim 12 (depends on 1) The non-aqueous electrolyte of claim 1, further comprising at least one of a cyclic carbonate-based compound, a halogen-substituted carbonate-based compound, a sultone-based compound, a sulfate-based compound, a phosphate-based compound, a borate-based compound, a nitrile-based compound, a benzene-based compound, an amine-based compound, a silane-based compound, or a lithium salt-based compound, as a second additive. ### Claim 13 (depends on 1) A lithium secondary battery comprising a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and the non-aqueous electrolyte of claim 1.