SECONDARY BATTERY AND MANUFACTURING METHOD OF THE SAME

• Main Authors: YU SUNGHOON, KIM SOOJIN, CHO JEONG-JU, HA SOO-HYUN
• Format: Patent
• Language: English
• Published: 03.06.2010
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

Disclosed is a secondary battery including (i) a cathode; (ii) an anode; (iii) a separator; and (iv) a gel polymer electrolyte composition including an electrolyte solvent, an electrolyte salt, and a polymerizable monomer, wherein a polymerization initiator is coated or added on at least one battery device element in contact with the gel polymer electrolyte composition. Also, the secondary battery including a cathode, an anode, a separator, and a gel polymer electrolyte is manufactured by the steps of: coating or adding a polymerization initiator on/to at least one battery device element in contact with the gel polymer electrolyte; inserting the cathode, the anode, and the separator into a battery case; and forming the gel polymer electrolyte by injecting a gel polymer electrolyte composition including an electrolyte solvent, an electrolyte salt, and a polymerizable monomer into the battery case, and carrying out polymerization.