Secondary battery and manufacturing method of the same

摘要

A secondary battery, including an electrode assembly having a positive sheet and a negative sheet and a separator is interposed therebetween; a tape to wrap an outer surface of the electrode assembly; and a case to receive the electrode assembly. After a remainder of the tape is formed to extend beyond a lower surface of the electrode assembly and joined by a press, the remainder is positioned between a bottom surface of the case and the lower surface of the electrode assembly. According to the embodiment of the present invention, since a junction portion of the tape extended to the outside of the lower surface of the electrode assembly is bent and inserted into the case, a shock-absorbing action is provided to reduce an external shock applied to the secondary battery. Further, an additional tape process can be omitted to simplify a manufacturing process of the secondary battery.

主权项

1. A secondary battery, comprising:
an electrode assembly including a positive sheet and a negative sheet and a separator interposed between the positive sheet and the negative sheet; a sealing tape to wrap an outer surface of the electrode assembly; and a case to receive the electrode assembly, wherein, after a remainder of the tape is formed to extend beyond a lower surface of the electrode assembly and joined by a press to form a junction portion of the remainder, the remainder is positioned between a bottom surface of the case and the lower surface of the electrode assembly, and a separated space is formed between the junction portion of the remainder joined to each other and the lower surface of the electrode assembly.