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|1. (WO2016052867) CYLINDRICAL BATTERY COMPRISING PRESSURIZING PART AND METHOD OF MANUFACTURING SAME|
|Applicants:||LG CHEM, LTD.
|Inventors:||LEE, Hye Youn
KIM, Il Hong
|Title:||CYLINDRICAL BATTERY COMPRISING PRESSURIZING PART AND METHOD OF MANUFACTURING SAME|
The present invention relates to a cylindrical battery, comprising: an electrode assembly (a jelly-roll) including a cathode, a separation membrane and an anode; a cylindrical can including a receiving part for holding the electrode assembly and an electrolyte together; a cap assembly mounted on the open top portion of the cylindrical can; a safety vent built in the cap assembly; and a pressurizing part which is located between the safety vent and the receiving part, is in communication with the receiving part and applies a certain pressure on the receiving part by means of a gas, wherein the cathode comprises, as a cathode active material, a lithium-complex transition metal oxide expressed by chemical formula 1 in the specification.