# US 2024/0204309 A1 · Battery top cover and battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0204309 A1 - Document ID: US20240204309A1 - Status: Published application - Kind: A1 - Application number: 18/286,295 - Filed: 2021-10-26 - Published: 2024-06-20 - Earliest claimed: 2021-04-16 - Assignees: Eve Power Co., Ltd. - Applicants: Eve Power Co., Ltd. - Inventors: Xianwen WANG; Zhengzhong LV; Dingding YUAN - Web page: https://patentgrep.com/patent/US20240204309A1 ## CPC - H01M 50/15: for prismatic or rectangular cells (H01M50/153 takes precedence) - H01M 50/103: prismatic or rectangular (H01M50/109, H01M50/11 take precedence) - H01M 50/176: for prismatic or rectangular cells (H01M50/181 takes precedence) - H01M 50/184: characterised by their shape or structure - H01M 50/188: the sealing members being arranged between the lid and terminal - H01M 50/55: on the same side of the cell - H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - 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 - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract Provided are a battery top cover and a battery. The battery top cover includes a cover plate, a pressing plate, an insulation assembly and a pole. The cover plate is provided with a mounting hole penetrating through two sides in a thickness direction of the cover plate. The pole is disposed in the mounting hole and is spaced from the cover plate. The pole includes a pole body, a middle of a first end of the pole body is provided with a first mounting groove configured to mount a connection member, and a circumferential portion of the first end of the pole body is provided with a first flange. A free end of the first flange extends towards a direction facing away from an axis of the mounting hole. The pressing plate is sleeved on an end of the pole body facing away from the first flange. ## Claims ### Claim 1 A battery top cover, comprising a cover plate, a pressing plate, an insulation assembly and a pole, wherein the cover plate is provided with a mounting hole penetrating through two sides in a thickness direction of the cover plate, the pole is disposed in the mounting hole and is spaced from the cover plate, the pole comprises a pole body, a middle of a first end of the pole body is provided with a first mounting groove configured to mount a connection member, a circumferential portion of the first end of the pole body is provided with a first flange, a free end of the first flange extends towards a direction facing away from an axis of the mounting hole, the pressing plate is sleeved on an end of the pole body facing away from the first flange, and the insulation assembly is arranged between the pressing plate and the cover plate and between the first flange and the cover plate to enable the cover plate and the insulation assembly to be clamped between the pressing plate and the first flange. ### Claim 2 (depends on 1) The battery top cover of claim 1, wherein the insulation assembly comprises an insulation member and a sealing ring with elasticity, the insulation member is disposed on a side of the cover plate adjacent to the pressing plate, and the sealing ring is disposed on a side of the cover plate adjacent to the first flange. ### Claim 3 (depends on 2) The battery top cover of claim 2, wherein the insulation member is a ring-shaped structure, the insulation member comprises a first insulation plate, a second insulation plate arranged on an outer side wall of the first insulation plate, and a third insulation plate arranged on an inner side wall of the first insulation plate, the first insulation plate is located between the pressing plate and the cover plate, the third insulation plate is located between the pole body and a hole wall of the mounting hole, and a second mounting groove configured to receive the pressing plate is formed between the second insulation plate and the pole body. ### Claim 4 (depends on 3) The battery top cover of claim 3, wherein one of the first insulation plate and the cover plate is provided with a positioning column, another one of the first insulation plate and the cover plate is provided with a positioning groove fitted with the positioning column, and the positioning column is inserted into the positioning groove. ### Claim 5 (depends on 4) The battery top cover of claim 4, wherein along a circumferential direction of the first insulation plate, a plurality of positioning columns are arranged on a side of the first insulation plate facing the cover plate. ### Claim 6 (depends on 2) The battery top cover of claim 2, wherein the sealing ring comprises a first sealing portion and a second sealing portion, the first sealing portion and the second sealing portion are arranged at an included angle, the first sealing portion is located between the first flange and the cover plate, the second sealing portion is located between the pole body and a hole wall of the mounting hole, and the second sealing portion is configured to abut against the insulation member. ### Claim 7 (depends on 3) The battery top cover of claim 3, wherein the sealing ring comprises a first sealing portion and a second sealing portion, the first sealing portion and the second sealing portion are arranged at an included angle, the first sealing portion is located between the first flange and the cover plate, the second sealing portion is located between the pole body and the hole wall of the mounting hole, and the second sealing portion is configured to abut against the insulation member. ### Claim 8 (depends on 2) The battery top cover of claim 2, wherein the cover plate satisfies at least one of: a first step surface is concavely arranged on a side of the cover plate facing a core, and the sealing ring abuts against the first step surface; or a second step surface is concavely arranged on a side of the cover plate facing away from the core, and the insulation member abuts against the second step surface. ### Claim 9 (depends on 3) The battery top cover of claim 3, wherein the cover plate satisfies at least one of: a first step surface is concavely arranged on a side of the cover plate facing a core, and the sealing ring abuts against the first step surface; or a second step surface is concavely arranged on a side of the cover plate facing away from the core, and the insulation member abuts against the second step surface. ### Claim 10 (depends on 2) The battery top cover of claim 2, wherein two poles are provided, the two poles are a positive pole and a negative pole, respectively; two insulation members are provided, the two insulation members are a positive insulation member and a negative insulation member, respectively; the positive insulation member is configured to correspond to the positive pole, the negative insulation member is configured to correspond to the negative pole, and conductive particles are embedded within the positive insulation member. ### Claim 11 (depends on 3) The battery top cover of claim 3, wherein two poles are provided, the two poles are a positive pole and a negative pole, respectively; two insulation members are provided, the two insulation members are a positive insulation member and a negative insulation member, respectively; the positive insulation member is configured to correspond to the positive pole, the negative insulation member is configured to correspond to the negative pole, and conductive particles are embedded within the positive insulation member. ### Claim 12 (depends on 10) The battery top cover of claim 10, wherein the insulation member is injection molded. ### Claim 13 (depends on 1) The battery top cover of claim 1, further comprising an insulation bracket, wherein the insulation bracket is arranged on a side of the cover plate facing a core and is provided with an avoidance hole communicating with the mounting hole, a hole wall of the avoidance hole is provided with a second flange, and a free end of the second flange extends towards an axial direction of the avoidance hole to enable the second flange to be clamped between the first flange and the cover plate. ### Claim 14 (depends on 1) The battery top cover of claim 1, wherein the pole body and the first flange are integrally formed. ### Claim 15 A battery, comprising a battery top cover, a core and a connection member, wherein one end of the connection member is connected to a tab of the core, and another end of the connection member is connected to a bottom of a first mounting groove of the battery top cover to enable a pole of the battery top cover to be electrically connected to the core through the connection member, the battery top cover comprises a cover plate, a pressing plate, an insulation assembly and the pole, the cover plate is provided with a mounting hole penetrating through two sides in a thickness direction of the cover plate, the pole is disposed in the mounting hole and is spaced from the cover plate, the pole comprises a pole body, the first mounting groove configured to mount the connection member is disposed on a middle portion of a first end of the pole body, a circumferential portion of the first end of the pole body is provided with a first flange, a free end of the first flange extends towards a direction facing away from an axis of the mounting hole, the pressing plate is sleeved on an end of the pole body facing away from the first flange, and the insulation assembly is arranged between the pressing plate and the cover plate and between the first flange and the cover plate to enable the cover plate and the insulation assembly to be clamped between the pressing plate and the first flange. ### Claim 16 (depends on 15) The battery of claim 15, wherein the insulation assembly comprises an insulation member and a sealing ring with elasticity, the insulation member disposed on a side of the cover plate adjacent to the pressing plate, and the sealing ring disposed on a side of the cover plate adjacent to the first flange. ### Claim 17 (depends on 16) The battery of claim 16, wherein the insulation member is a ring-shaped structure, the insulation member comprises a first insulation plate, a second insulation plate arranged on an outer side wall of the first insulation plate, and a third insulation plate arranged on an outer side wall of the first insulation plate, the first insulation plate is located between the pressing plate and the cover plate, the third insulation plate is located between the pole body and a hole wall of the mounting hole, and a second mounting groove configured to receive the pressing plate is formed between the second insulation plate and the pole body. ### Claim 18 (depends on 17) The battery of claim 17, wherein one of the first insulation plate and the cover plate is provided with a positioning column, another one of the first insulation plate and the cover plate is provided with a positioning groove fitted with the positioning column, and the positioning column is inserted into the positioning groove. ### Claim 19 (depends on 18) The battery of claim 18, wherein in a circumferential direction of the first insulation plate, a plurality of positioning columns are arranged on a side of the first insulation plate facing the cover plate. ### Claim 20 (depends on 16) The battery of claim 16, wherein the sealing ring comprises a first sealing portion and a second sealing portion, the first sealing portion and the second sealing portion are arranged at an included angle, the first sealing portion is located between the first flange and the cover plate, the second sealing portion is located between the pole body and a hole wall of the mounting hole, and the second sealing portion is configured to abut against the insulation member.