# US 12,603,320 B2 · Cell manufacturing device and method, battery, and power consuming apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,603,320 B2 - Document ID: US12603320B2 - Status: Granted - Kind: B2 - Application number: 18/167,539 - Filed: 2023-02-10 - Published: 2023-06-15 - Granted: 2026-04-14 - Earliest claimed: 2021-06-01 - Assignees: Jiangsu Contemporary Amperex Technology Limited - Applicants: Jiangsu Contemporary Amperex Technology Limited - Inventors: Guopeng Teng - Web page: https://patentgrep.com/patent/US12603320B2 ## CPC - H01M 10/0409: {for cells with wound electrodes} - H01M 10/0587: of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators - H01M 50/449: having a layered structure - H01M 50/46: Separators, membranes or diaphragms characterised by their combination with electrodes - H01M 4/0435: {Rolling or calendering} - H01M 10/058: Construction or manufacture - 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 A cell manufacturing device configured to manufacture a cell including an electrode plate and a separator. The cell manufacturing device includes a winding mechanism configured to wind the electrode plate and the separator to form the cell, and a film attaching mechanism configured to attach a film to the electrode plate or the separator at a predetermined position before the electrode plate and the separator are wound, so as to form a reinforcing film layer on the electrode plate or the separator. ## Claims ### Claim 1 A cell manufacturing device, configured to manufacture a cell comprising an electrode plate and a separator, the cell manufacturing device comprising: a film attaching mechanism configured to attach a film to the separator at a predetermined position before the electrode plate and the separator are wound, so as to form a reinforcing film layer on the separator; a winding mechanism configured to wind the electrode plate and the separator to form the cell; a feeding unit provided between the film attaching mechanism and the winding mechanism, the feeding unit being configured to deliver the separator with a predetermined length, the predetermined length being equal to a length of the separator required for winding of one cell, so that the film attaching mechanism determines the predetermined position based on delivery of the separator with the predetermined length, wherein: the feeding unit comprises a plurality of feed rollers, the plurality of feed rollers being provided at intervals, so that the separator with the predetermined length is delivered between the plurality of feed rollers; and a position of at least one of the plurality of feed rollers is adjustable to adjust a length of the separator delivered by the feeding unit; a detection unit configured to detect a position of a tab of the electrode plate and a thickness of the electrode plate and the separator, and transmit the position of the tab of the electrode plate and the thickness of the electrode plate and the separator to a control unit; and the control unit configured to adjust the positions of the feed rollers according to the position of the tab of the electrode plate and a difference between the thickness of the electrode plate and the separator so as to adjust the length of the separator delivered by the feeding unit. ### Claim 2 (depends on 1) The cell manufacturing device according to claim 1, wherein: the detection unit comprises a sensor connected to the feeding unit and configured to detect positions of the plurality of feed rollers and transmit a detection result to the control unit; and the control unit is configured to adjust the length of the separator delivered by the feeding unit according to the detection result. ### Claim 3 (depends on 1) The cell manufacturing device according to claim 1, wherein the film attaching mechanism comprises: a film unwinding unit configured to convey the film; a cutting unit configured to cut the film in response to the film with a predetermined length having been conveyed by the film unwinding unit; and an attaching unit configured to attach the film cut by the cutting unit to the separator at the predetermined position. ### Claim 4 (depends on 3) The cell manufacturing device according to claim 3, wherein the attaching unit comprises: a film suction mechanism configured to suck the film cut by the cutting unit; and a pressing mechanism configured to press the film to the separator at the predetermined position. ### Claim 5 (depends on 4) The cell manufacturing device according to claim 4, wherein the pressing mechanism comprises a pressing roller or a pressing plate. ### Claim 6 (depends on 4) The cell manufacturing device according to claim 4, wherein the pressing mechanism is provided with a heating apparatus. ### Claim 7 (depends on 6) The cell manufacturing device according to claim 6, wherein the pressing mechanism comprises a pressing roller or a pressing plate. ### Claim 8 (depends on 1) The cell manufacturing device according to claim 1, further comprising: an electrode plate delivery unit configured to deliver the electrode plate to the winding mechanism; a separator delivery unit configured to deliver the separator to the winding mechanism; an electrode plate unwinding unit configured to output the electrode plate to the electrode plate delivery unit; and a separator unwinding unit configured to output the separator to the separator delivery unit. ### Claim 9 (depends on 1) The cell manufacturing device according to claim 1, wherein the predetermined position is a position where the separator is bent during winding. ### Claim 10 A method for manufacturing a cell comprising electrode plates and a separator, the method comprising: detecting a position of a tab of the electrode plate and a thickness of the electrode plate and the separator, and adjusting a conveying distance of the separator according to the position of the tab of the electrode plate and a difference between the thickness of the electrode plate and the separator, to deliver the separator with the predetermined length, the predetermined length being equal to a length of the separator required for winding of one cell; attaching a film to the separator at a predetermined position every time delivery of the electrode plate and the separator each with the predetermined length is finished, so as to form a reinforcing film layer on the separator; and winding the electrode plate and the separator to form the cell.