METHOD FOR MANUFACTURING SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURED BY THE SAME

• Main Authors: KIM, JAKE, CHOI, HEE SUNG, LEE, SEON HONG, LEE, MAENG EUN, HAN, JEE HOON, LEE, BYONG GON, KWON, YOUNG WOONG, LEE, KI SOO, KIM, JONG MAN, KANG, JEE WON
• Format: Patent
• Language: English; Korean
• Published: 30.11.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to a method for producing secondary battery which is easy to produce and highly safe, and to a secondary battery produced thereby. To this end, the present invention provides a method for producing a secondary battery, which comprises the following steps: preparing an electrode assembly having a separation membrane interposed between a positive plate and a negative plate; cooling the electrode assembly after impregnating an electrolyte into the electrode assembly; immersing the cooled electrode assembly into a liquid polymer material; and taking out the electrode assembly and then hardening the liquid polymer material on a surface of the electrode assembly thereafter. Moreover, the present invention further provides a secondary battery produced thereby. 본 발명은 제조가 용이하면서도 안정성이 높은 이차전지 제조방법 및 이에 따라 제조된 이차전지를 위하여, 양극판과 음극판과 양극판과 음극판 사이에 개재된 분리막을 갖는 전극조립체를 준비하는 단계와, 전극조립체에 전해액을 함침시킨 후 전극조립체를 냉동시키는 단계와, 냉동된 전극조립체를 액상의 고분자물질에 침지시키는 단계와, 전극조립체를 꺼낸 후 전극조립체 표면의 액상의 고분자물질을 경화시키는 단계를 포함하는, 이차전지 제조방법 및 이에 따라 제조된 이차전지를 제공한다.