# US 2026/0074342 A1 · Battery pack case and battery pack 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 2026/0074342 A1 - Document ID: US20260074342A1 - Status: Published application - Kind: A1 - Application number: 19/107,468 - Filed: 2023-09-14 - Published: 2026-03-12 - Earliest claimed: 2022-09-16 - Assignees: LG Energy Solution, Ltd. - Applicants: LG Energy Solution, Ltd. - Inventors: Yu Han NOH - Web page: https://patentgrep.com/patent/US20260074342A1 ## CPC - H01M 50/242: adapted for protecting batteries against vibrations, collision impact or swelling - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/211: adapted for pouch cells - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H01M 50/291: characterised by their shape - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - 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 pack case according to an embodiment of the present disclosure includes a housing having an accommodation space therein, and a partition plate disposed in the accommodation space to partition the accommodation space, wherein the partition plate may include a first member forming an outer surface of the partition plate, and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member. ## Claims ### Claim 1 A battery pack, comprising: a case comprising a housing having an accommodation space therein and a partition plate disposed in the accommodation space to partition the accommodation space; and a battery module comprising a plurality of secondary batteries and disposed in the accommodation space partitioned by the partition plate, wherein the partition plate comprises: a first member forming an outer surface of the partition plate; and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein one end of the second member is connected to an inner side surface of the first member, and the other end of the second member is connected to either an inner top or inner bottom surface of the first member. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein the second member comprises: a first diagonal member connected to one inner side surface of the first member and either the inner top or inner bottom surface of the first member; and a second diagonal member connected to the other inner side surface of the first member and either the inner top or inner bottom surface of the first member, wherein the first diagonal member and the second diagonal member meet each other at the same point on one of the inner top or inner bottom surface of the first member. ### Claim 4 (depends on 3) The battery pack of claim 3, wherein the first diagonal member and the second diagonal member are symmetrical with respect to a vertical center line of the first member. ### Claim 5 (depends on 4) The battery pack of claim 4, wherein the first diagonal member and the second diagonal member are configured to approach to each other when the partition plate is pressed. ### Claim 6 (depends on 1) The battery pack of claim 1, wherein the partition plate further comprises a third member disposed inside the first member to support a portion at which the first member and the second member are connected to each other. ### Claim 7 A battery pack comprising: a case comprising a housing having an accommodation space therein and a partition plate disposed in the accommodation space to partition the accommodation space; and a battery cell comprising a plurality of electrode assembles and disposed in the accommodation space partitioned by the partition plate, wherein the partition plate comprises: a first member forming an outer surface of the partition plate; and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member. ### Claim 8 (depends on 7) The battery pack of claim 7, wherein one end of the second member is connected to an inner side surface of the first member, and the other end of the second member is connected to either an inner top or inner bottom surface of the first member. ### Claim 9 (depends on 8) The battery pack of claim 8, wherein the second member comprises: a first diagonal member connected to one inner side surface of the first member and either the inner top or inner bottom surface of the first member; and a second diagonal member connected to the other inner side surface of the first member and either the inner top or inner bottom surface of the first member, wherein the first diagonal member and the second diagonal member meet each other at the same point on one of the inner top or inner bottom surface of the first member. ### Claim 10 A battery pack case, comprising: a housing having an accommodation space therein; and a partition plate disposed in the accommodation space to partition the accommodation space, wherein the partition plate comprises: a first member forming an outer surface of the partition plate; and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member. ### Claim 11 (depends on 10) The battery pack case of claim 10, wherein one end of the second member is connected to an inner side surface of the first member, and the other end of the second member is connected to either an inner top or inner bottom surface of the first member. ### Claim 12 (depends on 11) The battery pack case of claim 11, wherein the second member comprises: a first diagonal member connected to one inner side surface of the first member and either the inner top or inner bottom surface of the first member; and a second diagonal member connected to the other inner side surface of the first member and either the inner top or inner bottom surface of the first member, wherein the first diagonal member and the second diagonal member meet each other at the same point on one of the inner top or inner bottom surface of the first member. ### Claim 13 (depends on 12) The battery pack case of claim 12, wherein the first diagonal member and the second diagonal member are symmetrical with respect to a vertical center line of the first member. ### Claim 14 (depends on 10) The battery pack case of claim 10, wherein the partition plate further comprises a third member disposed inside the first member to support a portion at which the first member and the second member are connected to each other. ### Claim 15 (depends on 14) The battery pack case of claim 14, wherein one end of the second member is connected to an inner side surface of the first member, and the other end of the second member is connected to either an inner top or inner bottom surface of the first member, and wherein the third member supports the inner side surface of the first member to which the first member and the second member are connected. ### Claim 16 (depends on 15) The battery pack case of claim 15, wherein the third member is provided in a pair, and the pair of third members are disposed to cross each other. ### Claim 17 (depends on 14) The battery pack case of claim 14, wherein the partition plate further comprises: a fourth member connecting the first member and the second member. ### Claim 18 (depends on 17) The battery pack case of claim 17, wherein one end of the fourth member is connected to an inner edge of the first member, and the other end of the fourth member is connected to the second member. ### Claim 19 (depends on 18) The battery pack case of claim 18, wherein the fourth member is provided in a pair, and the pair of the fourth members are disposed to be symmetrical with respect to a midpoint of the inner surface of the first member. ### Claim 20 (depends on 1) A vehicle, comprising: the battery pack of claim 1.