# US 12,009,523 B2 · Electrode with current collection multiple array > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,523 B2 - Document ID: US12009523B2 - Status: Granted - Kind: B2 - Application number: 16/643,351 - Filed: 2018-08-29 - Published: 2020-11-05 - Granted: 2024-06-11 - Earliest claimed: 2017-08-30 - Assignees: Centre National De La Recherche Scientifique; Institut Polytechnique De Grenoble - Applicants: Centre National De La Recherche Scientifique; Institut Polytechnique De Grenoble - Inventors: Vincent Caldeira; Laetitia Dubau; Marian Chatenet - Web page: https://patentgrep.com/patent/US12009523B2 ## CPC - H01M 4/742: {perforated material} - H01M 4/02: Electrodes composed of, or comprising, active material - H01M 4/13: Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof - H01M 4/244: {Zinc electrodes} - H01M 4/72: Grids - H01M 4/806: {Nonwoven fibrous fabric containing only fibres} - H01M 4/808: {Foamed, spongy materials} - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/30: Nickel accumulators (H01M10/34 takes precedence) - H01M 12/08: composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type - Y02E 60/10: Energy storage using batteries - 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 ## Abstract Disclosed is an electrode for an energy storage rechargeable device, including a plurality of electrode material layers and a plurality of porous current collector layers, the electrode material layers and current collector layers being arranged in a specific manner, an energy storage rechargeable device including the electrode, and the uses of the electrode. ## Claims ### Claim 1 A rechargeable energy storage device comprising: an electrolyte; and a negative electrode comprising: a first external layer that is a first electrode material layer ME and a second external layer that is either a second electrode material layer ME or a current collector layer CC, and two or more internal layers interposed between the first and second external internal layers, said internal layers comprising one or more electrode material layers ME and one or more porous current collector layers CC, wherein said electrode material ME and current collector CC layers forming the first and second external layers and the internal layers are alternated according to the repetition pattern —[CC—ME]—, and wherein the first external layer that is a first electrode material layer ME is configured to be in contact with the electrolyte. ### Claim 2 (depends on 1) The rechargeable energy storage device according to claim 1, wherein the negative electrode has a thickness ranging from 50 μm to 4 mm. ### Claim 3 (depends on 1) The rechargeable energy storage device according to claim 1, wherein at least a part or each of the one or more porous current collector layers CC of the negative electrode is one of a grid, a perforated sheet, a felt, a meshing, a fabric, and a foam. ### Claim 4 (depends on 1) The rechargeable energy storage device according to claim 1, wherein the porous current collector layers CC of the negative electrode, that are identical or different, are conductive material layers. ### Claim 5 (depends on 1) The rechargeable energy storage device according to claim 1, wherein said second external layer of the negative electrode is a porous current collector layer CC, and wherein said negative electrode is in the form of an assembly of successive layers having the following structure: [CC—ME]n wherein ME is one or more of the electrode material layers, CC is one or more of the porous current collector layers, and 2≤n≤8. ### Claim 6 (depends on 1) The rechargeable energy storage device according to claim 1, wherein the second external layer of the negative electrode is the second electrode material layer ME, and said negative electrode is in the form of an assembly of successive layers having the following structure: ME—[CC—ME]p-1 wherein ME is one or more of the electrode material layers, CC is one or more of the porous current collector layers, and 2≤p≤8. ### Claim 7 (depends on 1) The rechargeable energy storage device according to claim 1, wherein each of the electrode material layers ME of the negative electrode comprises at least one electrode active material. ### Claim 8 (depends on 1) The rechargeable energy storage device according to claim 1, wherein said negative electrode is a zinc-based negative electrode. ### Claim 9 (depends on 1) The rechargeable energy storage device according to claim 1, further comprising a counter-electrode having an external layer, the first external layer of the negative electrode being configured to face the external layer of the counter-electrode. ### Claim 10 (depends on 2) The rechargeable energy storage device according to claim 2, wherein at least a part or each of the one or more porous current collector layers CC is one of a grid, a perforated sheet, a felt, a meshing, a fabric, and a foam. ### Claim 11 (depends on 2) The rechargeable energy storage device according to claim 2, wherein the porous current collector layers CC, that are identical or different, are conductive material layers. ### Claim 12 (depends on 3) The rechargeable energy storage device according to claim 3, wherein the porous current collector layers CC, that are identical or different, are conductive material layers. ### Claim 13 (depends on 1) The rechargeable energy storage device according to claim 1, wherein each of the electrode material layers ME comprises at least one electrode active material comprising a polymer binder. ### Claim 14 (depends on 1) The rechargeable energy storage device according to claim 1, wherein each of the electrode material layers ME comprises at least one electrode active material comprising an electronic conductivity agent. ### Claim 15 (depends on 1) The rechargeable energy storage device according to claim 1, further comprising at least one positive electrode. ### Claim 16 (depends on 1) The rechargeable energy storage device according to claim 1, wherein said rechargeable energy storage device is chosen among an alkaline accumulator, a lithium-ion battery, a lead battery, a nickel-metal hydride battery, and a supercapacitor. ### Claim 17 (depends on 1) The device according to claim 1, wherein said rechargeable energy storage device is an alkaline accumulator chosen among a zinc/air battery and a zinc/nickel battery. ### Claim 18 (depends on 1) A method for improving an energy density of the rechargeable energy storage device according to claim 1, the method comprising applying the negative electrode to the energy storage device. ### Claim 19 (depends on 18) The method according to claim 18, wherein the negative electrode is in an alkaline accumulator.