# US 10,312,479 B2 · Flexible rechargeable battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,479 B2 - Document ID: US10312479B2 - Status: Granted - Kind: B2 - Application number: 15/345,339 - Filed: 2016-11-07 - Published: 2017-06-01 - Granted: 2019-06-04 - Earliest claimed: 2015-11-30 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Hyun-Hwa Song; Jun-Won Suh; Jan-Dee Kim; Jeong-Doo Yi; Jung-Gyu Nam; Bong-Kyoung Park; Jung-Yup Yang; Ju-Hyeong Han; Ju-Hee Sohn; Hye-Ri Eom; Da-Woon Han; Sol Choi; Seok-Hun Hong - Web page: https://patentgrep.com/patent/US10312479B2 ## CPC - H01M 10/02: Details (of electrodes H01M4/00; of non-active parts H01M50/00) - H01M 4/366: {as layered products} - H01M 4/667: {in the form of layers, e.g. coatings} - H01M 4/668: {Composites of electroconductive material and synthetic resins} - H01M 10/0585: of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators - H01M 50/119: Metals - H01M 50/121: Organic material - H01M 50/124: having a layered structure - H01M 50/129: with two or more layers of only organic material - H01M 50/136: Flexibility or foldability - H01M 50/186: characterised by the disposition of the sealing members - H01M 50/193: Organic material - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - 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 - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract A flexible rechargeable battery includes: a first conductive substrate; a second conductive substrate facing the first conductive substrate; and a sealant at edges of the first conductive substrate and the second conductive substrate. The first conductive substrate includes a first resin layer, a first barrier layer, a second resin layer, a first electrode current collector layer, and a first electrode coating layer that are sequentially stacked inward from a first side of the flexible rechargeable battery. The second conductive substrate includes a third resin layer, a second barrier layer, a fourth resin layer, a second electrode current collector layer, and a second electrode coating layer that are sequentially stacked inward from a second side of the flexible rechargeable battery. ## Claims ### Claim 1 A flexible rechargeable battery comprising: a first conductive substrate configured as packaging material of the flexible rechargeable battery comprising a first resin layer, a first barrier layer, a second resin layer, a first electrode current collector layer, and a first electrode coating layer that are sequentially stacked inward from a first side of the flexible rechargeable battery; a second conductive substrate configured as packaging material of the flexible rechargeable battery facing the first conductive substrate, the second conductive substrate comprising a third resin layer, a second barrier layer, a fourth resin layer, a second electrode current collector layer, and a second electrode coating layer that are sequentially stacked inward from a second side of the flexible rechargeable battery; and a sealant at edges of the first conductive substrate and the second conductive substrate, wherein the second resin layer includes a plurality of openings forming first conducting parts configured for allowing electrical conduction between the first barrier layer comprising a conductive metal and the first electrode current collector layer, and/or wherein the fourth resin layer includes a plurality of openings forming second conducting parts configured for allowing electrical conduction between the second barrier layer comprising a conductive metal and the second electrode current collector layer. ### Claim 2 (depends on 1) The flexible rechargeable battery of claim 1, further comprising an electrode assembly between the first conductive substrate and the second conductive substrate, the electrode assembly comprising a first inner electrode, a second inner electrode, and a separator between the first inner electrode and the second inner electrode. ### Claim 3 (depends on 1) The flexible rechargeable battery of claim 1, wherein the sealant is at edges of the first electrode current collector layer and at edges of at least one of the second electrode current collector layer, the fourth resin layer, the second barrier layer, and the third resin layer. ### Claim 4 (depends on 1) The flexible rechargeable battery of claim 1, wherein the sealant is at edges of the second resin layer and at edges of at least one of the second electrode current collector layer, the fourth resin layer, the second barrier layer, and the third resin layer. ### Claim 5 (depends on 1) The flexible rechargeable battery of claim 1, wherein the sealant is at edges of the first barrier layer and at edges of at least one of the second electrode current collector layer, the fourth resin layer, the second barrier layer, and the third resin layer. ### Claim 6 (depends on 1) The flexible rechargeable battery of claim 1, wherein the sealant is at edges of the first resin layer and at edges of at least one of the second electrode current collector layer, the fourth resin layer, the second barrier layer, and the third resin layer. ### Claim 7 (depends on 1) The flexible rechargeable battery of claim 1, wherein at least one of the first resin layer, the second resin layer, the third resin layer, and the fourth resin layer comprises polyimide (PI), polyether ether ketone (PEEK), polyethersulfone (PES), polyetherimide (PEI), polycarbonate (PC), and/or polyethylene terephthalate (PET). ### Claim 8 (depends on 7) The flexible rechargeable battery of claim 7, wherein the first resin layer and the second resin layer comprise the same material. ### Claim 9 (depends on 7) The flexible rechargeable battery of claim 7, wherein the third resin layer and the fourth resin layer comprise the same material. ### Claim 10 (depends on 1) The flexible rechargeable battery of claim 1, wherein the sealant comprises a material having the same thermal expansion rate as that of at least one of the first resin layer, the second resin layer, the third resin layer, and the fourth resin layer. ### Claim 11 (depends on 1) The flexible rechargeable battery of claim 1, further comprising a circuit film on an outer surface of at least one of the first conductive substrate and the second conductive substrate. ### Claim 12 (depends on 1) A battery pack comprising the flexible rechargeable battery of claim 1 as a unit battery. ### Claim 13 (depends on 12) A device comprising the battery pack of claim 12 as a power source. ### Claim 14 (depends on 1) The flexible rechargeable battery of claim 1, further comprising an electrode tab connected to the first barrier layer. ### Claim 15 (depends on 1) The flexible rechargeable battery of claim 1, wherein the first and second electrode current collector layers have a mesh structure.