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1. (WO2018124673) CYLINDRICAL BATTERY CELL HAVING HEAT-SHRINKABLE TUBE COMPRISING ULTRAVIOLET ABSORBER

Pub. No.:    WO/2018/124673    International Application No.:    PCT/KR2017/015427
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Wed Dec 27 00:59:59 CET 2017
IPC: H01M 2/02
H01M 10/04
H01M 10/42
C08L 67/03
C08L 77/02
C08K 5/132
Applicants: LG CHEM, LTD.
주식회사 엘지화학
Inventors: KIM, Jun-Tak
김준탁
LEE, Je-Jun
이제준
HWANG BO, Kwang-Su
황보광수
JUNG, Sang-Sok
정상석
LEE, Gil-Young
이길영
Title: CYLINDRICAL BATTERY CELL HAVING HEAT-SHRINKABLE TUBE COMPRISING ULTRAVIOLET ABSORBER
Abstract:
The present invention relates to a cylindrical battery cell having a heat-shrinkable tube wrapping around an outer surface of a cylindrical case excluding electrode terminal portions, wherein the heat-shrinkable tube comprises: a tube base made of a polyester-based resin having heat shrinkability; a reinforcing agent made of a nylon resin for increasing the tensile strength and use temperature of the heat-shrinkable tube; and an ultraviolet absorber which absorbs ultraviolet rays irradiated to the heat-shrinkable tube and emits the ultraviolet rays as heat energy, thereby preventing polymer chains of a nylon-based resin or a polyester-based resin from reacting with oxygen to cause a decomposition reaction.