# US 10,312,480 B2 · Cell packing material and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,480 B2 - Document ID: US10312480B2 - Status: Granted - Kind: B2 - Application number: 14/780,808 - Filed: 2014-06-18 - Published: 2016-02-25 - Granted: 2019-06-04 - Earliest claimed: 2013-06-18 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Heon Kim; Yong Suk Kim; Yeong Rae Chang; Hye Min Kim - Web page: https://patentgrep.com/patent/US10312480B2 ## CPC - H01M 50/124: having a layered structure - B32B 15/08: of synthetic resin - B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} - B32B 27/08: of synthetic resin - B32B 27/18: characterised by the use of special additives - B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers} - B32B 27/308: {comprising acrylic (co)polymers} - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B32B 27/34: comprising polyamides - H01M 50/105: Pouches or flexible bags - H01M 50/119: Metals - H01M 50/121: Organic material - H01M 50/129: with two or more layers of only organic material - H01M 50/133: Thickness - B32B 2255/06: on metal layer - B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer - B32B 2255/205: Metallic coating - B32B 2255/26: Polymeric coating - B32B 2307/306: Resistant to heat - B32B 2307/31: Heat sealable - B32B 2307/50: having particular mechanical properties - B32B 2307/546: Flexural strength; Flexion stiffness - B32B 2307/554: Wear resistance - B32B 2307/584: Scratch resistance - B32B 2307/714: Inert, i.e. inert to chemical degradation, corrosion - B32B 2307/7242: Non-permeable - B32B 2439/40: Closed containers - B32B 2457/10: Batteries - B32B 2553/00: Packaging equipment or accessories not otherwise provided for - Y02E 60/10: Energy storage using batteries - Y02E 60/50: Fuel cells - 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 ## Abstract A cell packing material and a method of manufacturing the same are provided. More particularly, a cell packing material including a sealant layer, a gas barrier layer formed on the sealant layer, and an outer layer formed on the gas barrier layer, the outer layer including a polyrotaxane-based compound, and a method of manufacturing the same are provided. The cell packing material includes the outer layer having excellent elongation, scratch resistance, and chemical resistance, and thus can be easily molded into a pouch, and exhibit improved durability, and the like. ## Claims ### Claim 1 A cell packing material comprising: a sealant layer; a gas barrier layer formed on the sealant layer; and an outer layer formed on the gas barrier layer, wherein the outer layer comprises a polyrotaxane-based compound at 5 to 88 parts by weight, a polycaprolactone-modified acrylate at 10 to 50 parts by weight, a silicone-modified acrylate at 5 to 30 parts by weight, a urethane acrylate at 10 to 50 parts by weight, and a photoinitiator at 0.01 to 10 parts by weight. ### Claim 2 (depends on 1) The cell packing material of claim 1, wherein the polyrotaxane-based compound comprises a cyclic compound, a linear molecule passing through the cyclic compound, and a blocking group disposed at an end of the linear molecule to prevent secession of the cyclic compound. ### Claim 3 (depends on 1) The cell packing material of claim 1, wherein the polyrotaxane-based compound has a caprolactone-based compound bound thereto. ### Claim 4 (depends on 1) The cell packing material of claim 1, wherein the polyrotaxane-based compound has a (meth)acrylic compound introduced thereinto. ### Claim 5 (depends on 2) The cell packing material of claim 2, wherein the polyrotaxane-based compound comprises the cyclic compound having a caprolactone-based compound bound thereto, and the caprolactone-based compound having a (meth)acrylic compound introduced thereinto. ### Claim 6 (depends on 1) The cell packing material of claim 1, wherein the outer layer has a glass transition temperature (Tg) of −80 to 100° C. ### Claim 7 (depends on 1) The cell packing material of claim 1, wherein the cell packing material further comprises an intermediate layer formed between the sealant layer and the gas barrier layer. ### Claim 8 (depends on 7) The cell packing material of claim 7, wherein the intermediate layer comprises an acid-modified polypropylene-based compound. ### Claim 9 (depends on 1) The cell packing material of claim 1, wherein the cell packing material further comprises an intermediate layer formed between the gas barrier layer and the outer layer. ### Claim 10 (depends on 9) The cell packing material of claim 9, wherein the intermediate layer comprises a nylon resin. ### Claim 11 (depends on 1) The cell packing material of claim 1, wherein the cell packing material further comprises: a first intermediate layer formed between the sealant layer and the gas barrier layer; and a second intermediate layer formed between the gas barrier layer and the outer layer. ### Claim 12 (depends on 11) The cell packing material of claim 11, wherein the first intermediate layer comprises an acid-modified polypropylene-based compound, and the second intermediate layer comprises a nylon resin. ### Claim 13 A method of manufacturing a cell packing material, comprising: preparing a laminate comprising a sealant layer and a gas barrier layer formed on the sealant layer; and forming an outer layer on the gas barrier layer, wherein the outer layer comprises a polyrotaxane-based compound at 5 to 88 parts by weight, a polycaprolactone-modified acrylate at 10 to 50 parts by weight, a silicone-modified acrylate at 5 to 30 parts by weight, a urethane acrylate at 10 to 50 parts by weight, and a photoinitiator at 0.01 to 10 parts by weight.