INTERMEDIATE ASSEMBLY OF POUCH TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING POUCH TYPE SECONDARY BATTERY

• Main Author: KIM YEA EUN
• Format: Patent
• Language: English; Korean
• Published: 30.05.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

본 발명의 일 실시예에 따른 파우치형 이차전지의 제조 방법은 제1전극 조립체가 수용되는 2개의 제1셀 수용부와, 제2전극 조립체가 수용되는 2개의 제2셀 수용부와, 가스가 수용되도록 하는 2개의 가스포집부를 갖는 파우치형 케이스를 준비하는 단계; 상기 2개의 제1셀 수용부가 마주보도록 접히어 상기 제1전극 조립체를 수용하는 제1셀 수용챔버를 형성하고, 상기 2개의 제2셀 수용부가 마주보도록 접히어 상기 제2전극 조립체를 수용하는 제2셀 수용챔버를 형성하는 수용챔버 형성 단계; 및 상기 2개의 가스포집부가 마주보도록 접히어 가스챔버를 형성하는 가스챔버 형성 단계;를 포함할 수 있다. A method for manufacturing a pouch-type secondary battery according to an embodiment of the present invention may comprise: a step for preparing a pouch-type case that has two first cell accommodation parts for accommodating a first electrode assembly, two second cell accommodation parts for accommodating a second electrode assembly, and two gas collection parts for accommodating gas; an accommodation chamber-forming step for forming a first cell accommodation chamber for accommodating the first electrode assembly and a second cell accommodation chamber for accommodating the second electrode assembly, the first cell accommodation chamber being formed by folding the two first cell accommodation parts so that the first cell accommodation parts face each other, and the second cell accommodation chamber being formed by folding the two second cell accommodation parts so that the second cell accommodation parts face each other; and a gas chamber-forming step for forming a gas chamber by folding the two gas collection parts so that the gas collection parts face each other.