# US 10,873,108 B2 · Lithium battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,108 B2 - Document ID: US10873108B2 - Status: Granted - Kind: B2 - Application number: 16/300,134 - Filed: 2017-06-08 - Published: 2019-05-16 - Granted: 2020-12-22 - Earliest claimed: 2016-06-09 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Inhaeng Cho; Hyejin Park; Seonghun Jeong; Sanghoon Kim - Web page: https://patentgrep.com/patent/US10873108B2 ## CPC - H01M 10/0569: characterised by the solvents - 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 - H01M 10/0567: characterised by the additives - H01M 10/0568: characterised by the solutes - H01M 2004/021: {Physical characteristics, e.g. porosity, surface area} - 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 - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A lithium battery includes: a cathode having a mixture density of 3.9 g/cc or greater; an anode; and an electrolyte including a non-aqueous organic solvent disposed between the cathode and the anode, wherein the lithium battery has an operating voltage of 4.4 V or greater, and the non-aqueous organic solvent includes at least one first non-aqueous organic solvent selected from ethyl butyrate and methyl valerate, and the first non-aqueous organic solvent is contained in an amount of 20 to 50 volume % with based on a total volume of the non-aqueous organic solvent. ## Claims ### Claim 1 A lithium battery comprising: a cathode having a mixture density of 3.9 g/cc or greater; an anode; and an electrolyte disposed between the cathode and the anode and comprising a non-aqueous organic solvent, wherein: the lithium battery has an operating voltage of 4.4 V or greater, the non-aqueous organic solvent includes: a first non-aqueous organic solvent that includes ethyl butyrate or methyl valerate, and a second non-aqueous organic solvent that includes ethylene carbonate, and an amount of the first non-aqueous organic solvent is from 20 to 50 vol % based on a total volume of the non-aqueous organic solvent. ### Claim 2 (depends on 1) The lithium battery of claim 1, wherein the cathode has a mixture density of 3.9 to 4.3 g/cc. ### Claim 3 (depends on 1) The lithium battery of claim 1, wherein the lithium battery has an operating voltage of 4.4 to 4.5 V. ### Claim 4 (depends on 1) The lithium battery of claim 1, wherein the second non-aqueous organic solvent further includes propylene carbonate, diethyl carbonate, or ethyl propionate. ### Claim 5 (depends on 4) The lithium battery of claim 4, wherein an amount of the ethylene carbonate is from 20 to 30 vol % based on the total volume of the non-aqueous organic solvent. ### Claim 6 (depends on 4) The lithium battery of claim 4, wherein: the second non-aqueous organic solvent further includes the propylene carbonate, and an amount of the propylene carbonate is greater than 0 vol % to 10 vol % based on the total volume of the non-aqueous organic solvent. ### Claim 7 (depends on 4) The lithium battery of claim 4, wherein: the second non-aqueous organic solvent further includes the ethyl propionate, and an amount of the ethyl propionate is from 20 to 50 vol % based on the total volume of the non-aqueous organic solvent. ### Claim 8 (depends on 1) The lithium battery of claim 1, wherein the electrolyte further comprises at least one first additive selected from fluoroethylene carbonate, vinylethylene carbonate, 1,3-propane sultone, succinonitrile, and LiBF4. ### Claim 9 (depends on 8) The lithium battery of claim 8, wherein an amount of the at least one first additive is from 0.5 to 20 wt % based on a total weight of the electrolyte. ### Claim 10 (depends on 1) The lithium battery of claim 1, wherein the electrolyte further comprises a second additive represented by Formula 1 below: wherein, in Formula 1, p is an integer from 0 to 10; and R1 and R2 are each independently a hydrogen atom, a cyano group, a substituted or unsubstituted C1-05 alkylene cyano group, or a combination thereof, wherein at least one of R1 and R2 is a cyano group or a substituted or unsubstituted C1-C5 alkylene cyano group. ### Claim 11 (depends on 10) The lithium battery of claim 10, wherein the second additive comprises 1,3,6-hexanetricarbonitrile, 1,2,6-hexanetricarbonitrile, or a combination thereof. ### Claim 12 (depends on 10) The lithium battery of claim 10, wherein an amount of the second additive is from 0.5 to 5 wt % based on the total weight of the electrolyte. ### Claim 13 (depends on 10) The lithium battery of claim 10, wherein the cathode has a film formed on a surface thereof, as a product derived from the first additive, the second additive, or a part or all of the first additive and the second additive. ### Claim 14 (depends on 1) The lithium battery of claim 1, wherein the electrolyte further comprises at least one lithium salt selected from LiCl, LiBr, LiI, LiClO4, LiBF4, LiBioCl10, LiPF6, LiCF3SO3, LiCF3CO2, LiAsF6, LiSbF6, LiAlCl4, CH3SO3Li, CF3SO3Li, (CF3SO2)2NLi, and lithium chloroborate. ### Claim 15 (depends on 1) The lithium battery of claim 1, wherein the electrolyte comprises: the first non-aqueous organic solvent; the second non-aqueous organic solvent, the second non-aqueous organic solvent further including propylene carbonate and ethyl propionate; a first additive comprising fluoroethylene carbonate, vinylethylene carbonate, 1,3-sultone, succinonitrile, and LiBF4; and a lithium salt. ### Claim 16 (depends on 15) The lithium battery of claim 15, wherein a weight ratio of fluoroethylene carbonate, vinylethylene carbonate, 1,3-propane sultone, succinonitrile, and LiBF4 comprised in the first additive is 4.0 to 10.0:0.1 to 5.0:0.1 to 5.0:0.1 to 7.0:0.01 to 1.0. ### Claim 17 (depends on 1) The lithium battery of claim 1, wherein the electrolyte comprises: the first non-aqueous organic solvent; the second non-aqueous organic solvent, the second non-aqueous organic solvent further including propylene carbonate and ethyl propionate; a first additive comprising fluoroethylene carbonate, vinylethylene carbonate, and 1,3-propane sultone; and a second additive comprising 1,3,6-hexanetricarbonitrile or 1,2,6-hexanetricarbonitrile; and a lithium salt. ### Claim 18 (depends on 17) The lithium battery of claim 17, wherein a weight ratio of fluoroethylene carbonate, vinylethylene carbonate, and 1,3-propane sultone comprised in the first additive is 4.0 to 10.0:0.1 to 5.0:0.1 to 5.0. ### Claim 19 (depends on 17) The lithium battery of claim 17, wherein an amount of the second additive is from 0.5 to 2 wt % based on the total weight of the electrolyte. ### Claim 20 A lithium battery comprising: a cathode having a mixture density of 3.9 glee or greater; an anode; and an electrolyte between the cathode and the anode and including a non-aqueous organic solvent, wherein: the lithium battery has an operating voltage of 4.4 V or greater, the non-aqueous organic solvent includes a first non-aqueous organic solvent, the first non-aqueous organic solvent including methyl valerate, and an amount of the first non-aqueous organic solvent is from 20 to 50 vol %, based on a total volume of the non-aqueous organic solvent.