Title:
METHOD FOR EVALUATING INTERNAL SHORT OF SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/091238
Kind Code:
A1
Abstract:
A method for evaluating an internal short, of the present invention, inserts ionic polymer-metal composites (IPMC) in a battery cell, and applies a voltage to an external conducting wire electrically connected to the IPMC, so as to induce an internal short by means of flexural deformation of the IPMC, thereby evaluating whether the internal short occurs. The method for evaluating an internal short, according to the present invention, inserts and positions, in a battery, the IPMC capable of operating even at room temperature and low voltages and adjusts the voltage, thereby having an advantage of enabling a short to occur at a desired position and area and for a desired period of time.
Inventors:
YOON SEO YOUNG (KR)
KIM BYUNG SOO (KR)
KIM JU BIN (KR)
KIM BYUNG SOO (KR)
KIM JU BIN (KR)
Application Number:
PCT/KR2019/012718
Publication Date:
May 07, 2020
Filing Date:
September 30, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/42; G01R19/165; H01M10/04; H01M10/058; H01M50/531; H01M50/574
Foreign References:
| KR20130030807A | 2013-03-27 | |||
| KR20090130412A | 2009-12-23 | |||
| KR20090071664A | 2009-07-01 | |||
| JP2018137141A | 2018-08-30 | |||
| KR20120105233A | 2012-09-25 |
Other References:
See also references of EP 3736901A4
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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