# US 2014/0154565 A1 · Electrode assembly, fabricating method of the electrode assembly and electrochemical cell containing the electrode assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0154565 A1 - Document ID: US20140154565A1 - Status: Published application - Kind: A1 - Application number: 14/175,361 - Filed: 2014-02-07 - Published: 2014-06-05 - Earliest claimed: 2012-06-28 - Assignees: LG Chem, Ltd. - Applicants: LG Chem. Ltd. - Inventors: Dae Geun KU; Hyuk Su KIM; Jun Woo HUH; Hyang Mok LEE; Chang Bum AHN - Web page: https://patentgrep.com/patent/US20140154565A1 ## CPC - H01M 10/0431: {Cells with wound or folded electrodes (H01M10/045 takes precedence)} - B32B 37/02: characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations - H01M 10/0413: {Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes} - H01M 10/0468: {Compression means for stacks of electrodes and separators} - H01M 10/052: Li-accumulators - H01M 10/0585: of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators - H01M 50/461: {with adhesive layers between electrodes and separators} - B32B 2457/10: Batteries - 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 - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - 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 fabricating method of a unit structure for accomplishing an electrode assembly formed by a stacking method, and an electrochemical cell including the same are disclosed. The fabricating method of the electrode assembly is characterized with fabricating the unit structure by conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure, and conducting a second process of laminating first separator/second electrode/second separator one by one on one of the first electrode among two of the first electrodes. ## Claims ### Claim 1 A fabricating method of an electrode assembly comprising a first electrode, a second electrode and a separator, a unit structure of the electrode assembly being manufactured by: conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure; and conducting a second process of laminating first separator/second electrode/second separator one by one on one of the first electrode among two of the first electrodes. ### Claim 2 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein a plurality of the unit structures are stacked. ### Claim 3 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein the first process and the second process are conducted as a continuous process. ### Claim 4 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein both sides of the first separator are coated with a coating material having adhesiveness, and one side of the second separator making a contact with the second electrode is coated with the coating material having adhesiveness. ### Claim 5 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein both sides of the separator included in the bicell are coated with a coating material having adhesiveness. ### Claim 6 (depends on 4) The fabricating method of an electrode assembly of claim 4, wherein the coating material is a mixture of inorganic particles and a binder polymer. ### Claim 7 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein the first electrode and the second electrode are double sided electrodes comprising a coated structure on both sides of a current collector with an active material. ### Claim 8 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein a temperature applied for the laminating in the second process is lower by 20° C. to 50° C. than a temperature applied for the laminating in the first process. ### Claim 9 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein a pressure applied for the laminating in the second process is 40% to 60% of a pressure applied for the laminating in the first process. ### Claim 10 (depends on 1) The fabricating method of an electrode assembly of claim 1, wherein a temperature applied to an upper block and a lower block of a laminator for conducting the second process is different by 10° C. to 30° C. ### Claim 11 (depends on 1) An electrode assembly comprising at least one unit structure manufactured by the fabricating method of the electrode assembly according to claim 1. ### Claim 12 (depends on 11) The electrode assembly of claim 11, further comprising a fixing member for fixing a side or a perimeter of the unit structure. ### Claim 13 (depends on 11) The electrode assembly of claim 11, further comprising a fixing member for fixing a side or a perimeter of the electrode assembly. ### Claim 14 (depends on 12) The electrode assembly of claim 12, wherein the fixing member is formed by using a material different from a material of the separator. ### Claim 15 (depends on 11) The electrode assembly of claim 11, wherein the first electrode and the second electrode are double sided electrodes comprising a coated structure on both sides of a current collector with an active material. ### Claim 16 (depends on 11) An electrochemical cell comprising the electrode assembly according to claim 11. ### Claim 17 (depends on 5) The fabricating method of an electrode assembly of claim 5, wherein the coating material is a mixture of inorganic particles and a binder polymer. ### Claim 18 (depends on 13) The electrode assembly of claim 13, wherein the fixing member is formed by using a material different from a material of the separator.