# US 12,183,957 B2 · Assembled structure of pole and pole current collector disk, and battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,183,957 B2 - Document ID: US12183957B2 - Status: Granted - Kind: B2 - Application number: 18/013,934 - Filed: 2022-05-18 - Published: 2024-07-18 - Granted: 2024-12-31 - Earliest claimed: 2021-05-21 - Assignees: Eve Power Co., Ltd. - Applicants: Eve Power Co., Ltd. - Inventors: Liming Huang; Liangliang Yue; Jing Liu; Yuebin Xu; Wei He - Web page: https://patentgrep.com/patent/US12183957B2 ## CPC - H01M 50/107: having curved cross-section, e.g. round or elliptic (H01M50/103, H01M50/109, H01M50/11 take precedence) - H01M 50/593: Spacers; Insulating plates - H01M 50/152: for cells having curved cross-section, e.g. round or elliptic (H01M50/15, H01M50/153 take precedence) - H01M 50/536: characterised by the method of fixing the leads to the electrodes, e.g. by welding - H01M 50/559: Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells (H01M50/553 takes precedence) - H01M 50/56: Cup shaped terminals - 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 an assembled structure of a pole and a pole current collector disk. The assembled structure includes a positive pole, a positive current collector disk, a first insulating member and a second insulating member, where the second insulating member is disposed between the positive current collector disk and the first insulating member. The positive pole includes a conductive end and a connection end, the conductive end and the connection end are connected through the connection rod. The connection rod sequentially penetrates through the first insulating member and the second insulating member, the first insulating member is closer to the conductive end than the second insulating member, and an accommodating space is formed between the first insulating member and the second insulating member. The positive current collector disk includes a welding disk and a conductive protrusion. ## Claims ### Claim 1 An assembled structure of a pole and a pole current collector disk, comprising a positive pole, a positive current collector disk, a first insulating member and a second insulating member, wherein the second insulating member is disposed between the positive current collector disk and the first insulating member; the positive pole comprises a conductive end, a connection end and a connection rod, the conductive end and the connection end are connected through the connection rod, and a width of the conductive end and a width of the connection end are both larger than a width of the connection rod; the connection rod sequentially penetrates through the first insulating member and the second insulating member, the first insulating member is closer to the conductive end than the second insulating member, and an accommodating space is formed between the first insulating member and the second insulating member; and the positive current collector disk comprises a welding disk and a conductive protrusion, the conductive protrusion is disposed on an end surface of the welding disk facing the second insulating member, and an end surface of the connection end facing the positive current collector disk is provided with a first groove, a contact portion of the positive current collector disk and the positive pole is an end surface of the conductive protrusion facing away the welding disk and a groove bottom surface of the first groove. ### Claim 2 (depends on 1) The assembled structure of claim 1, wherein the first insulating member is provided with a first through hole, the second insulating member is provided with a second through hole, a central axis of the first through hole coincides with a central axis of the second through hole, the connection rod penetrates through the first through hole and the second through hole, a hole diameter of the first through hole and a hole diameter of the second through hole are both not less than the width of the connection rod, the width of the conductive end is larger than the hole diameter of the first through hole, and the width of the connection end is larger than the hole diameter of the second through hole. ### Claim 3 (depends on 2) The assembled structure of claim 2, wherein, an end surface of the first insulating member facing away the second insulating member is provided with a second groove, a groove bottom surface of the second groove is provided with an orifice of the first through hole, and the conductive end is in contact with the second groove; and an end surface of the second insulating member facing away the first insulating member is provided with a third groove, a groove bottom surface of the third groove is provided with an orifice of the second through hole, and the connection end is in contact with the third groove. ### Claim 4 (depends on 3) The assembled structure according to claim 3, wherein a sidewall of the conductive end is attached to an inner sidewall of the second groove, and an end surface, located within the second groove, of the conductive end is attached to a groove bottom surface of the second groove; a sidewall of the connection end is attached to an inner sidewall of the third groove, and an end surface, located within the third groove, of the connection end is attached to a groove bottom surface of the third groove. ### Claim 5 (depends on 4) The assembled structure of claim 4, wherein a height of the conductive end is not less than a depth of the second groove. ### Claim 6 (depends on 5) The assembled structure of claim 5, wherein the conductive protrusion is provided with a fuse. ### Claim 7 (depends on 6) The assembled structure of claim 6, wherein a height of the connection end is less than a depth of the third groove, the welding disk is in contact with the end surface of the second insulating member facing away the first insulating member, and a gap exists between the connection end and the welding disk. ### Claim 8 A battery, comprising a housing and a cell disposed inside the housing, wherein the housing is of a groove body structure, the housing comprises a housing bottom portion and a housing bottom end surface, wherein the battery is provided with an assembled structure of a pole and a pole current collector disk; the assembled structure of the pole and the pole current collector disk comprises a positive pole, a positive current collector disk, a first insulating member and a second insulating member, and the second insulating member is disposed between the positive current collector disk and the first insulating member; the positive pole comprises a conductive end, a connection end and a connection rod, the conductive end and the connection end are connected through the connection rod, and a width of the conductive end and a width of the connection end are both larger than a width of the connection rod; the connection rod sequentially penetrates through the first insulating member and the second insulating member, the first insulating member is closer to the conductive end than the second insulating member, and an accommodating space is formed between the first insulating member and the second insulating member; the positive current collector disk comprises a welding disk and a conductive protrusion, the conductive protrusion is disposed on an end surface of the welding disk facing the second insulating member, and an end surface of the connection end facing the positive current collector disk is provided with a first groove, a contact portion of the positive current collector disk and the positive pole is only an end surface of the conductive protrusion facing away the welding disk and a groove bottom surface of the first groove. ### Claim 9 (depends on 8) The battery of claim 8, wherein the first insulating member is provided with a first through hole, the second insulating member is provided with a second through hole, a central axis of the first through hole coincides with a central axis of the second through hole, the connection rod penetrates through the first through hole and the second through hole, a hole diameter of the first through hole and a hole diameter of the second through hole are both not less than the width of the connection rod, the width of the conductive end is larger than the hole diameter of the first through hole, and the width of the connection end is larger than the hole diameter of the second through hole. ### Claim 10 (depends on 9) The battery of claim 9, wherein, an end surface of the first insulating member facing away the second insulating member is provided with a second groove, a groove bottom surface of the second groove is provided with an orifice of the first through hole, and the conductive end is in contact with the second groove; and an end surface of the second insulating member facing away the first insulating member is provided with a third groove, a groove bottom surface of the third groove is provided with an orifice of the second through hole, and the connection end is in contact with the third groove. ### Claim 11 (depends on 10) The battery of claim 10, wherein a sidewall of the conductive end is attached to an inner sidewall of the second groove, and an end surface, located within the second groove, of the conductive end is attached to a groove bottom surface of the second groove; a sidewall of the connection end is attached to an inner sidewall of the third groove, and an end surface, located within the third groove, of the connection end is attached to a groove bottom surface of the third groove. ### Claim 12 (depends on 11) The battery of claim 11, wherein a height of the conductive end is not less than a depth of the second groove. ### Claim 13 (depends on 12) The battery of claim 12, wherein the conductive protrusion is provided with a fuse. ### Claim 14 (depends on 13) The battery of claim 13, wherein a height of the connection end is less than a depth of the third groove, the welding disk is in contact with the end surface of the second insulating member facing away the first insulating member, and a gap exists between the connection end and the welding disk. ### Claim 15 (depends on 8) The battery of claim 8, wherein the housing bottom portion is provided with a connection hole, the connection hole penetrates through the housing bottom portion, and the positive pole in the assembled structure penetrates through the connection hole into the housing, the second insulating member in the assembled structure and the positive current collector disk in the assembled structure are disposed inside the housing, the first insulating member in the assembled structure is disposed outside the housing bottom end surface, the first insulating member is in contact with the housing bottom end surface, the second insulating member is in contact with a groove bottom surface of the housing, the width of the connection rod of the positive pole is less than a hole diameter of the connection hole, and an outer sidewall of the connection rod is not in contact with an inner sidewall of the connection hole. ### Claim 16 (depends on 15) The battery of claim 15, wherein the cell is of a full-tab structure, and an end surface of, facing away the conductive protrusion of the positive current collector disk, of the welding disk of the positive current collector disk is connected to a positive pole end surface of the cell. ### Claim 17 (depends on 9) The battery of claim 9, wherein the housing bottom portion is provided with a connection hole, the connection hole penetrates through the housing bottom portion, and the positive pole in the assembled structure penetrates through the connection hole into the housing, the second insulating member in the assembled structure and the positive current collector disk in the assembled structure are disposed inside the housing, the first insulating member in the assembled structure is disposed outside the housing bottom end surface, the first insulating member is in contact with the housing bottom end surface, the second insulating member is in contact with a groove bottom surface of the housing, the width of the connection rod of the positive pole is less than a hole diameter of the connection hole, and an outer sidewall of the connection rod is not in contact with an inner sidewall of the connection hole. ### Claim 18 (depends on 17) The battery of claim 17, wherein the cell is of a full-tab structure, and an end surface of, facing away the conductive protrusion of the positive current collector disk, of the welding disk of the positive current collector disk is connected to a positive pole end surface of the cell. ### Claim 19 (depends on 10) The battery of claim 10, wherein the housing bottom portion is provided with a connection hole, the connection hole penetrates through the housing bottom portion, and the positive pole in the assembled structure penetrates through the connection hole into the housing, the second insulating member in the assembled structure and the positive current collector disk in the assembled structure are disposed inside the housing, the first insulating member in the assembled structure is disposed outside the housing bottom end surface, the first insulating member is in contact with the housing bottom end surface, the second insulating member is in contact with a groove bottom surface of the housing, the width of the connection rod of the positive pole is less than a hole diameter of the connection hole, and an outer sidewall of the connection rod is not in contact with an inner sidewall of the connection hole. ### Claim 20 (depends on 19) The battery of claim 19, wherein the cell is of a full-tab structure, and an end surface of, facing away the conductive protrusion of the positive current collector disk, of the welding disk of the positive current collector disk is connected to a positive pole end surface of the cell.