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|1. (WO2017039126) BATTERY CELL AND METHOD FOR MANUFACTURING SAME|
|Applicants:||LG CHEM, LTD.
|Inventors:||KIM, Cho Long
CHOI, Yong Su
KIM, Sang Hun
JUNG, Sang Suk
HWANG, Won Pill
|Title:||BATTERY CELL AND METHOD FOR MANUFACTURING SAME|
The present invention relates to a battery cell comprising: an electrode assembly provided with an electrode tab; a case for receiving the electrode assembly, at least a portion of the rim thereof being sealed to form a sealing surface; an electrode lead coupled to the electrode tab and extending outwardly from the case; a lead film provided on the upper surface and the lower surface of the electrode lead located on the sealing surface of the case and coupled together with the sealing surface; and a main gas vent pipe which is located inside the case and of which one end is buried in the lead film, wherein a part of the lead film is cut so that one end of the main gas vent pipe is exposed to the outside, whereby the gas within the case is discharged to the outside through the main gas vent pipe exposed to the outside.