# US 10,770,695 B2 · Battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,695 B2 - Document ID: US10770695B2 - Status: Granted - Kind: B2 - Application number: 15/941,248 - Filed: 2018-03-30 - Published: 2018-08-09 - Granted: 2020-09-08 - Earliest claimed: 2011-08-02 - Assignees: GS Yuasa International Ltd. - Applicants: Gs Yuasa International Ltd. - Inventors: Hiroaki Yoshida; Keita Nakamura - Web page: https://patentgrep.com/patent/US10770695B2 ## CPC - H01M 50/124: having a layered structure - H01M 4/667: {in the form of layers, e.g. coatings} - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 50/126: comprising three or more layers - H01M 50/178: for pouch or flexible bag cells - H01M 50/548: on opposite sides of the cell - H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells - H01M 50/562: characterised by the material - H01M 4/669: {Steels} - H01M 10/345: {Gastight metal hydride accumulators} - 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 battery includes an outer package including a laminated film including one or more resin layers, a terminal, and a melt-bonding assisting member including a thermoplastic resin and extending along the terminal. The outer package includes a melt-bonded region at which the terminal is sandwiched between the one or more resin layers via the melt-bonding assisting member. The terminal includes an inner part, a sandwiched part, and an outer part arranged in a first direction. The battery has a discharge capacity of 10 Ah or more. ## Claims ### Claim 1 A lithium ion battery, comprising: an outer package comprising a laminated film comprising one or more resin layers; an electrolyte solution held in the outer package; a terminal; a metal plating layer disposed on the terminal; and a melt-bonding assisting member comprising a thermoplastic resin and extending along the terminal, wherein the outer package comprises a melt-bonded region at which the terminal is sandwiched between the one or more resin layers via the melt-bonding assisting member, wherein the terminal comprises an inner part, a sandwiched part, and an outer part arranged in a first direction, wherein the melt-bonding assisting member internally and externally extends in the first direction beyond contact with the outer package, wherein the metal plating layer comprises a single layer, wherein the metal plating layer internally and externally extends in the first direction beyond the melt-bonded region, and wherein the battery has a discharge capacity of 10 Ah or more. ### Claim 2 (depends on 1) The lithium ion battery according to claim 1, wherein a thermal conductivity of a material of the metal plating layer is less than a thermal conductivity of a material of the terminal. ### Claim 3 (depends on 1) The lithium ion battery according to claim 1, wherein, in a second direction, perpendicular to the first direction, the melt bonding assisting member covers end surfaces of the terminal. ### Claim 4 (depends on 3) The lithium ion battery according to claim 3, wherein, in a sectional view of the melt-bonded region along the second direction, the melt-bonding assisting member forms triangles, bottom sides of which are in contact with the end surfaces of the terminal, respectively. ### Claim 5 (depends on 1) The lithium ion battery according to claim 1, wherein the melt-bonding assisting member is in contact with the electrolyte solution. ### Claim 6 (depends on 1) The lithium ion battery according to claim 1, wherein the melt-bonding assisting member is disposed between the sandwiched part and the metal plating layer. ### Claim 7 (depends on 1) The lithium ion battery according to claim 1, wherein the melt-bonding assisting member abuts the sandwiched part and the metal plating layer. ### Claim 8 (depends on 1) The lithium ion battery according to claim 1, wherein the electrolyte solution comprises a nonaqueous electrolyte. ### Claim 9 (depends on 1) The lithium ion battery according to claim 1, wherein, in the outer package, the electrolyte solution is disposed between the laminated film and the terminal. ### Claim 10 A lithium ion battery, comprising: an outer package comprising a laminated film; an electrolyte solution held in the outer package; a terminal; a metal plating layer disposed on the terminal; and a melt-bonding assisting member extending along the terminal, wherein the outer package comprises a melt-bonded region at which the terminal is sandwiched in the laminated film via the melt-bonding assisting member, wherein the melt-bonding assisting member internally and externally extends in a first direction beyond contact with the outer package, wherein the metal plating layer comprises a single layer, and wherein the metal plating layer internally and externally extends in the first direction beyond the melt-bonded region. ### Claim 11 (depends on 10) The lithium ion battery according to claim 10, wherein the melt-bonding assisting member comprises a thermoplastic resin. ### Claim 12 (depends on 10) The lithium ion battery according to claim 10, wherein the terminal comprises an inner part, a sandwiched part, and an outer part arranged in the first direction. ### Claim 13 (depends on 10) The lithium ion battery according to claim 10, wherein the melt-bonding assisting member is in contact with the electrolyte solution. ### Claim 14 A lithium ion battery, comprising: an outer package comprising a laminated film comprising one or more resin layers; an electrolyte solution held in the outer package; a terminal; a metal plating layer disposed on the terminal; and a melt-bonding assisting member comprising a thermoplastic resin and extending along the terminal, wherein the outer package includes a melt-bonded region at which the terminal is sandwiched between the one or more resin layers via the melt-bonding assisting member, wherein the terminal comprises an inner part, a sandwiched part, and an outer part arranged in a first direction, wherein the melt-bonding assisting member internally and externally extends in the first direction beyond contact with the outer package, wherein the melt-bonding assisting member is in contact with the electrolyte solution, wherein a thermal conductivity of a material of the metal plating layer is less than a thermal conductivity of a material of the terminal, wherein the metal plating layer comprises a single layer, wherein the metal plating layer internally and externally extends in the first direction beyond the melt-bonded region, and wherein the battery has a discharge capacity of 10 Ah or more.