# US 2026/0100485 A1 · Battery pack and method for manufacturing battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0100485 A1 - Document ID: US20260100485A1 - Status: Published application - Kind: A1 - Application number: 19/214,710 - Filed: 2025-05-21 - Published: 2026-04-09 - Earliest claimed: 2024-10-08 - Assignees: Hyundai Motor Company; Kia Corporation - Applicants: Hyundai Motor Company; Kia Corporation - Inventors: Kyung Mo Kim; Si Won Kim; Gun Woo Ko - Web page: https://patentgrep.com/patent/US20260100485A1 ## CPC - H01M 50/505: comprising a single busbar - H01M 10/613: Cooling or keeping cold - H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method - H01M 50/291: characterised by their shape - H01M 50/296: characterised by terminals of battery packs (terminals of batteries H01M50/543) - H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules - 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 Provided is a battery pack including a battery housing, a plurality of battery cell stacks accommodated in an interior of the battery housing, and disposed to be spaced apart from each other in a first direction, and busbar extending between the plurality of battery cell stacks in the first direction, in a second direction crossing the first direction. The battery housing includes a base plate, on which the plurality of battery cell stacks are seated, a first cross member extending in the second direction between the plurality of battery cell stacks, and a busbar holder that fixes a position of the busbar between the first cross member and the base plate. A method of assembly includes mounting the busbar, installing the cell stacks around it, attaching cross members, and connecting a cover. The design simplifies busbar alignment, provides secure electrical connections, and offers a compact structure suited for efficient battery systems. ## Claims ### Claim 1 A battery pack comprising: a battery housing; a plurality of battery cell stacks configured to be accommodated in an interior of the battery housing and disposed to be spaced apart from each other in a first direction; and a busbar extending in a second direction crossing the first direction between the plurality of battery cell stacks, wherein the battery housing comprises: a base plate on which the plurality of battery cell stacks is configured to be seated; a first cross member extending in the second direction between the plurality of battery cell stacks; and a busbar holder configured to fix a position of the busbar between the first cross member and the base plate. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the busbar holder comprises: a base wall fixed to the base plate; and a pair of side walls extending from the base wall to one side in a third direction crossing the first direction and the second direction, the pair of side walls accommodating the busbar therebetween. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein the busbar holder further comprises a busbar support wall protruding from the base wall in the third direction between the pair of side walls and supporting the busbar. ### Claim 4 (depends on 3) The battery pack of claim 3, wherein a height of the busbar support wall in the third direction is smaller than a height of the side walls in the third direction. ### Claim 5 (depends on 3) The battery pack of claim 3, further comprising an inter-busbar configured to electrically connect the battery cell stacks arranged in parallel in the second direction, wherein the base wall is configured to support the inter-busbar. ### Claim 6 (depends on 5) The battery pack of claim 5, wherein the base wall comprises: a base area connected to the side wall and the busbar support wall; and a protruding area protruding from the base area toward the battery cell stacks and coupled to the inter-busbar. ### Claim 7 (depends on 6) The battery pack of claim 6, wherein the inter-busbar extends in the second direction and comprises opposite ends in the second direction, and wherein the protruding area is coupled to the opposite ends of the inter-busbar. ### Claim 8 (depends on 7) The battery pack of claim 7, further comprising a second cross member extending in the first direction to cross the first cross member between the opposite ends of the inter-busbar. ### Claim 9 (depends on 7) The battery pack of claim 7, further comprising: a coupling member coupling the opposite ends of the inter-busbar and the protruding area, wherein when the busbar and the inter-busbar are viewed while being spaced apart from each other in the third direction, the busbar comprises an area that is curved to become more distant from the opposite ends of the inter-busbar in the first direction. ### Claim 10 (depends on 5) The battery pack of claim 5, wherein the inter-busbar is disposed between the busbar and the base wall. ### Claim 11 (depends on 5) The battery pack of claim 5, wherein when the busbar and the inter-busbar are viewed while being spaced apart from each other in the second direction, the inter-busbar has a length in the first direction that is greater than a length in the third direction, and the busbar is spaced apart from the inter-busbar in the third direction to have a length in the third direction being greater than a length in the first direction. ### Claim 12 (depends on 5) The battery pack of claim 5, wherein the battery cell stack comprises: battery cells extending in the first direction and arranged in the second direction; and a sensing assembly disposed on one side of the battery cells in the first direction and electrically connected to the inter-busbar. ### Claim 13 (depends on 12) The battery pack of claim 12, wherein the connection terminal is provided on an area on an opposite side of the sensing assembly in the third direction. ### Claim 14 (depends on 2) The battery pack of claim 2, wherein each of the side wall comprises: a side connection area extending in the second direction; and side support areas arranged in the second direction with the side connection area interposed therebetween, having a height in the third direction that is greater than a height of the side connection area in the third direction, and supporting the busbar. ### Claim 15 (depends on 14) The battery pack of claim 14, wherein the side support area comprises a part having a thickness in the first direction being greater than a thickness of the side connection area in the first direction. ### Claim 16 (depends on 1) The battery pack of claim 1, wherein the base plate comprises a cooling channel in an interior thereof. ### Claim 17 A method for manufacturing a battery pack, the method comprising: mounting a busbar on a battery housing; mounting a plurality of battery cell stacks on the battery housing such that the plurality of battery cell stacks faces each other with the busbar interposed therebetween; mounting a first cross member and a second cross member in a direction crossing the first cross member, between the plurality of battery cell stacks; and coupling a pack cover to the battery housing. ### Claim 18 (depends on 17) The method of claim 17, wherein the mounting the busbar on the battery housing comprises: fixing a busbar holder for fixing the busbar to a base plate; and seating the busbar on the busbar holder. ### Claim 19 (depends on 17) The method of claim 17, wherein the mounting the busbar on the battery housing comprises: fixing a busbar holder for fixing the busbar to a base plate; and mounting an inter-busbar for electrical connection of the battery cell stacks on the battery housing. ### Claim 20 (depends on 19) The method of claim 19, wherein the mounting the plurality of battery cell stacks on the battery housing comprises: electrically connecting the inter-busbar and connection terminals of the battery cell stacks.