CURRENT BLOCKING STRUCTURE APPLIED TO POUCH TYPE SECONDARY BATTERY

Title:

CURRENT BLOCKING STRUCTURE APPLIED TO POUCH TYPE SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2018/236019

Kind Code:

A1

Abstract:

The present invention relates to a current blocking structure applied to a pouch type secondary battery and, more specifically, to a current blocking structure in which a double-fracture structure, including a triangular (V) fracture groove (122) and a fracture line (124) having an extended triangular groove shape, is designed such that, when a swelling phenomenon occurs, stress is concentrated on the fracture line by the fracture groove so as to allow for an accurate and clean fracture, and thus a current flow can be blocked.

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Inventors:

KONG JIN HAK (KR)
CHOI YONG SEOK (KR)
KIM DONG YEON (KR)

Application Number:

PCT/KR2018/000308

Publication Date:

December 27, 2018

Filing Date:

January 05, 2018

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

H01M50/105; H01M50/553; H01M50/536; H01M50/574

Foreign References:

KR101417280B1	2014-07-09
KR20160131657A	2016-11-16
KR101500101B1	2015-03-06
KR20150025974A	2015-03-11
US20160315355A1	2016-10-27

Other References: