# US 2026/0100457 A1 · Battery Cell, and Battery Pack and Vehicle 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 2026/0100457 A1 - Document ID: US20260100457A1 - Status: Published application - Kind: A1 - Application number: 19/346,843 - Filed: 2025-10-01 - Published: 2026-04-09 - Earliest claimed: 2024-10-07 - Assignees: LG Energy Solution, Ltd. - Applicants: LG Energy Solution, Ltd. - Inventors: Tae-Rim Hong; Sung-Min Cho; Do-Gyun Kim; Jun-Ho Baek; Seung-Hun Lee - Web page: https://patentgrep.com/patent/US20260100457A1 ## CPC - H01M 50/152: for cells having curved cross-section, e.g. round or elliptic (H01M50/15, H01M50/153 take precedence) - H01M 50/107: having curved cross-section, e.g. round or elliptic (H01M50/103, H01M50/109, H01M50/11 take precedence) - H01M 50/169: by welding, brazing or soldering - H01M 50/179: for cells having curved cross-section, e.g. round or elliptic (H01M50/176, H01M50/181 take precedence) - H01M 50/3425: {in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member} - H01M 50/533: characterised by the shape of the leads or tabs - H01M 50/627: Filling ports - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - H01M 2200/20: Pressure-sensitive devices - 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 - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A battery cell may include an electrode assembly, a cell housing, and a can lid. The cell housing may include a sidewall portion, an opening at a first end of the cell housing in an axial direction, and a bottom portion at a second end of the cell housing in the axial direction. The cell housing is configured to accommodate the electrode assembly. The can lid may include an edge portion and an electrode coupling portion. The can lid is configured to cover the opening of the cell housing. The electrode coupling portion of the can lid extends further into an interior of the cell housing in an axial direction than the edge portion of the can lid. The electrode coupling portion contacts the electrode assembly and the edge portion of the can lid is spaced apart from the electrode assembly along the axial direction. ## Claims ### Claim 1 A battery cell comprising: an electrode assembly; a cell housing comprising a sidewall portion, an opening at a first end of the cell housing in an axial direction, and a bottom portion at a second end of the cell housing in the axial direction, wherein the cell housing accommodates the electrode assembly therein; and a can lid comprising an edge portion and an electrode coupling portion; wherein the can lid is positioned to cover the opening of the cell housing, wherein the electrode coupling portion of the can lid extends further into an interior of the cell housing in the axial direction than the edge portion of the can lid, wherein the electrode coupling portion of the can lid contacts the electrode assembly, and wherein the edge portion of the can lid is spaced apart from the electrode assembly along the axial direction. ### Claim 2 (depends on 1) The battery cell of claim 1, wherein the edge portion of the can lid is joined to the sidewall portion of the cell housing at the first end of the cell housing. ### Claim 3 (depends on 1) The battery cell of claim 1, wherein the can lid is electrically connected to the sidewall portion of the cell housing. ### Claim 4 (depends on 1) The battery cell of claim 1, wherein the can lid comprises a plurality of electrode coupling portions and each of the plurality of electrode coupling portions contacts the electrode assembly. ### Claim 5 (depends on 4) The battery cell of claim 4, wherein the plurality of electrode coupling portions are spaced apart from each other in a circumferential direction. ### Claim 6 (depends on 5) The battery cell of claim 5, wherein the can lid comprises a plurality of bridges and each bridge of the plurality of bridges is between adjacent electrode coupling portions of the plurality of electrode coupling portions in the circumferential direction. ### Claim 7 (depends on 4) The battery cell of claim 4, wherein the plurality of the electrode coupling portions are arranged rotationally symmetrically about a center of the can lid. ### Claim 8 (depends on 1) The battery cell of claim 1, wherein the can lid further comprises an injection port at a center of the can lid. ### Claim 9 (depends on 8) The battery cell of claim 8, wherein the can lid further comprises a flat portion surrounding the injection port, and wherein the flat portion is between the injection port and the electrode coupling portion in a radial direction. ### Claim 10 (depends on 1) The battery cell of claim 1, wherein the can lid further comprises a vent notch portion between the electrode coupling portion and the edge portion in a radial direction. ### Claim 11 (depends on 1) The battery cell of claim 1, wherein the vent notch portion is on a surface of the can lid that faces away from the electrode assembly in the axial direction. ### Claim 12 (depends on 1) The battery cell of claim 1, wherein the edge portion of the can lid comprises a mating surface, a curved surface, and an inclined surface that form a U-shaped bent portion. ### Claim 13 (depends on 12) The battery cell of claim 12, wherein an outer edge of the can lid in a radial direction comprises the mating surface. ### Claim 14 (depends on 13) The battery cell of claim 13, wherein the mating surface extends in the axial direction and the mating surface is in direct contact with an inner circumferential surface of the sidewall portion of the cell housing. ### Claim 15 (depends on 1) The battery cell of claim 1, wherein the electrode assembly comprises a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode. ### Claim 16 (depends on 15) The battery cell of claim 15, wherein the first electrode comprises a first uncoated portion, the second electrode comprises a second uncoated portion, and the second uncoated portion of the second electrode is directly connected to the electrode coupling portion of the can lid. ### Claim 17 (depends on 16) The battery cell of claim 16, wherein the bottom portion of the cell housing comprises a through hole, a terminal extends through the through hole of the bottom portion of the cell housing, and the terminal is electrically connected to the first uncoated portion of the first electrode. ### Claim 18 (depends on 17) The battery cell of claim 17, wherein the battery cell is a cylindrical battery cell. ### Claim 19 (depends on 1) A battery pack comprising the battery cell of claim 1. ### Claim 20 (depends on 19) A vehicle comprising the battery pack of claim 19.