# US 10,122,041 B2 · Device and method for producing electrode stacks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,122,041 B2 - Document ID: US10122041B2 - Status: Granted - Kind: B2 - Application number: 14/433,382 - Filed: 2013-09-30 - Published: 2015-09-17 - Granted: 2018-11-06 - Earliest claimed: 2012-10-04 - Assignees: Jonas & Redmann Automationstechnik GmbH - Applicants: Jonas & Redmann Automationstechnik GMBH - Inventors: Lutz Redmann - Web page: https://patentgrep.com/patent/US10122041B2 ## CPC - H01M 10/0404: {Machines for assembling batteries} - H01M 10/0409: {for cells with wound electrodes} - H01M 10/0459: {Cells or batteries with folded separator between plate-like electrodes} - H01M 10/0583: of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - Y10T 29/49108: Electric battery cell making - Y10T 29/53135: Storage cell or battery - 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 - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to a stacking device and a method for stacking flat materials, e.g. electrodes having a separation film (1) interposed in a zigzag manner by means of a guiding device (8). The stacking device comprises a stacking table (11), a holder (4; 5) for immobilizing the stack, and grippers (6, 7) for picking the electrodes (2, 3) up and putting them down in a defined manner, said grippers having an excess pressure module (9) for the targeted shaping of a defined film pocket (17) in the separation film (1). ## Claims ### Claim 1 A device for producing electrode stacks having positive and negative electrodes (2, 3) and interposed separation film (1), to be arranged by means of a zig-zag folding, having at least one guiding device (8) for feeding the separation film (1) from an endless roll, having a stacking table (11) for receiving the electrode stack and at least one gripper (6, 7) for picking up and putting down the electrodes (2, 3), characterized in that an excess pressure module (9) is arranged at the gripper (6, 7) for generating a directed gas flow (10) such that the gas flow (10) exiting from the excess pressure module (9) forms a film pocket (17) through the redirection of the separation film (1), and that holders (4, 5) are arranged on each side of the stacking table (11), wherein a holder (4, 5) serves for the purpose of immobilizing the formed film pocket (17). ### Claim 2 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the holders (4, 5) have at least the same width as the separation film (1). ### Claim 3 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the gripper (6, 7) is implemented narrower than the electrodes (2, 3) to be picked up and put down, and an overhang (18) of the electrodes (2, 3) arises. ### Claim 4 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the guiding device (8) can be movable alternatingly. ### Claim 5 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the gas flow (10) is an air flow, preferably cleaned and ionized. ### Claim 6 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the gripper (6, 7) is arranged parallel to the stacking table (11). ### Claim 7 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the gripper (6, 7) is arranged inclined, wherein the lowest point of the incline is located in the direction of the pocket (17) forming in the separation film (1). ### Claim 8 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the holders (4, 5) can be moved in the x-z planes to the stacking table (11). ### Claim 9 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the separation film (1) can be immobilized at a fixing point (13) by means of the guiding device (8). ### Claim 10 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that a low pressure module (15) for further shaping of the film pocket (1) is arranged beneath the holder (4, 5). ### Claim 11 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that the holders (4, 5) are provided on the inside facing toward the separation film (1), with redirection rollers (19) for supporting the folding of the separation film (1). ### Claim 12 (depends on 1) The device for producing electrode stacks according to claim 1, characterized in that an outflow nozzle (20) for a gas flow (21) is provided on the inside of each holder (4, 5) facing toward the separation film (1), wherein the gas flow (21) supports the folding of the separation film (1) due to the effects thereof.