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|1. (WO2018080080) SECONDARY BATTERY|
|Applicants:||SAMSUNG SDI CO., LTD.
|Inventors:||EO, Soo Mi
PARK, Seung Hee
LEE, Jea Woan
LIM, Jae Min
JUNG, Euy Sun
CHO, Kyung Hoon
CHO, Young Kwang
HEO, Kyeong Yi
Various embodiments of the present invention relate to a secondary battery, and the objective of the present invention is to provide a secondary battery, which has drop-impact resistance, by providing an electrode assembly having a relatively thick inner circumferential tap and a relatively thin outer circumferential tap. To this end, disclosed is a secondary battery, which comprises an electrode assembly comprising: an anode plate having an inner circumferential tap formed at a wound front end thereof; a separator covering the anode plate; and a cathode plate having an outer circumferential tap formed at a wound distal end thereof.