# US 2021/0242526 A1 · Battery pack and battery pack assembly apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0242526 A1 - Document ID: US20210242526A1 - Status: Published application - Kind: A1 - Application number: 17/052,843 - Filed: 2020-01-03 - Published: 2021-08-05 - Earliest claimed: 2019-01-03 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Sung Hwan JANG; Seong Tae KIM; Gyo Eun LEE - Web page: https://patentgrep.com/patent/US20210242526A1 ## CPC - H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method - B23K 37/04: for holding or positioning work - H01M 10/0404: {Machines for assembling batteries} - H01M 50/202: Casings or frames around the primary casing of a single cell or a single battery - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Discussed is a battery pack including a housing unit configured to receive a battery cell therein, the housing unit including: a first housing including a first contact surface; and a second housing including a second contact surface opposite the first contact surface, wherein, the first housing and the second housing are coupled in a state in which the first contact surface and the second contact surface are in contact with each other and pressed against each other, a first support provided on an outer surface of the first housing, the first support configured to contact a first pressing module that that is configured to press the first housing toward the second housing, and a second support provided on an outer surface of the second housing, the second support configured to contact a second pressing module that is configured to press the second housing toward the first housing. ## Claims ### Claim 1 A battery pack comprising: a housing unit configured to receive a battery cell therein, the housing unit comprising: a first housing including a first contact surface; and a second housing including a second contact surface opposite the first contact surface, wherein, the first housing and the second housing are coupled in a state in which the first contact surface and the second contact surface are in contact with each other and pressed against each other, a first support provided on an outer surface of the first housing, the first support configured to contact a first pressing module that is configured to press the first housing toward the second housing, and a second support provided on an outer surface of the second housing, the second support configured to contact a second pressing module that is configured to press the second housing toward the first housing. ### Claim 2 (depends on 1) The battery pack according to claim 1, wherein the first support protrudes outward from the outer surface of the first housing and is formed in a flange shape, and includes the first contact surface. ### Claim 3 (depends on 1) The battery pack according to claim 1, wherein the second support protrudes outward from the outer surface of the second housing and is formed in a flange shape, and includes the second contact surface. ### Claim 4 (depends on 1) The battery pack according to claim 1, wherein the first support is formed in a rib shape protruding outward from the outer surface of the first housing. ### Claim 5 (depends on 1) The battery pack according to claim 1, wherein the second support is formed in a rib shape protruding outward from the outer surface of the second housing. ### Claim 6 (depends on 1) A device having the battery pack according to claim 1. ### Claim 7 (depends on 6) The device according to claim 6, wherein the device is one of a computer, a cellular phone, a wearable electronic device, a power tool, an electric vehicle (EV), a hybrid electric vehicle, a plug-in hybrid electric vehicle, an electric two-wheeled vehicle, an electric golf cart, and an energy storage apparatus. ### Claim 8 A battery pack assembly apparatus configured to assemble a battery pack comprising a housing unit configured to receive a battery cell therein, the housing unit comprising a first housing and a second housing, the battery pack assembly apparatus comprising: a first pressing module coupled to a first support formed on an outer surface of the first housing; and a second pressing module coupled to a second support formed on an outer surface of the second housing, wherein the first pressing module and the second pressing module are configured to be moved in a direction adjacent to each other to press the first housing and the second housing against each other in a state in which the first pressing module is in contact with the first support and the second pressing module is in contact with the second support. ### Claim 9 (depends on 8) The battery pack assembly apparatus according to claim 8, wherein, the first support protrudes from the outer surface of the first housing and extends in a circumferential direction of the first housing, and the first pressing module is configured to extend in the circumferential direction of the first housing to press the entire first support. ### Claim 10 (depends on 8) The battery pack assembly apparatus according to claim 8, wherein, the second support protrudes from the outer surface of the second housing and extends in a circumferential direction of the second housing, and the second pressing module is configured to extend in the circumferential direction of the second housing to press the entire second support. ### Claim 11 (depends on 1) The battery pack according to claim 1, wherein the first housing and the second housing are coupled by welding. ### Claim 12 (depends on 1) The battery pack according to claim 1, wherein the first contact surface is separated from the first support, and wherein the second support includes the second contact surface. ### Claim 13 (depends on 12) The battery pack according to claim 12, wherein the first contact surface is located inward of the second support. ### Claim 14 (depends on 1) The battery pack according to claim 1, wherein the second contact surface is separated from the second support, and wherein the first support includes the first contact surface. ### Claim 15 (depends on 14) The battery pack according to claim 14, wherein the second contact surface is located inward of the first support.