Method and apparatus for manufacturing pouch-type secondary battery

• Main Authors: OH JEONG-SOO, BAEK JU-HWAN, LEE SEUNG-BAE
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A method for manufacturing a pouch-type secondary battery according to one embodiment of the present invention may comprise: a first sealing operation of fusing a lead film attached to an electrode lead of an electrode assembly to a sealing part of a pouch in which the electrode assembly is housed; and a second sealing operation of sealing the sealing portion of the pouch, in which the first sealing operation includes: a heating step of irradiating a region existing in the sealing portion of the pouch and corresponding to the lead film with a laser beam, thereby heating the lead film and melting the resin layer of the region; and a bonding step of bonding the lead film and the molten resin layer by compressing the region. 根据本发明一实施方式的制造袋型二次电池的方法可包括：第一密封操作，将附接到电极组件的电极引线的引线膜熔合到容纳有电极组件的袋的密封部；以及第二密封操作，将袋的密封部密封，其中第一密封操作包括：加热工序，用激光束照射存在于袋的密封部中并且与引线膜对应的区域，从而加热引线膜并且熔融区域的树脂层；和结合工序，压缩区域，从而将引线膜和熔融的树脂层结合。