Title:
METHOD AND APPARATUS FOR DETECTING DAMAGE OF BATTERY SEPARATOR
Document Type and Number:
WIPO Patent Application WO/2020/032343
Kind Code:
A1
Abstract:
The present invention discloses an apparatus for detecting damage of a separator. An apparatus for detecting a separator according to one aspect of the present invention is an apparatus for detecting damage of a separator, which detects whether a separator of a secondary battery is damaged by applying a voltage while pressurizing an electrode assembly formed of a stack structure of a positive electrode plate, a separator, and a negative electrode plate, and inducing a temporary short circuit between the positive electrode plate and the negative electrode plate. The apparatus for detecting a separator may comprise: a short circuit measuring unit for applying a voltage to the electrode assembly and sensing a leakage current; and a pressurizing jig provided to pressurize, in a rolling manner, at least one surface of the electrode assembly or to sequentially pressurize a predetermined region of the at least one surface of the electrode assembly.
Inventors:
MIN HOON (KR)
PARK CHAN-WOO (KR)
KIM BYUNG-SOO (KR)
PARK CHAN-WOO (KR)
KIM BYUNG-SOO (KR)
Application Number:
PCT/KR2019/004380
Publication Date:
February 13, 2020
Filing Date:
April 11, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M10/42; G01R1/04; H01M10/04
Foreign References:
| KR20140138383A | 2014-12-04 | |||
| JP4993196B2 | 2012-08-08 | |||
| KR100965540B1 | 2010-06-23 | |||
| KR20160068244A | 2016-06-15 | |||
| KR20110021970A | 2011-03-04 | |||
| KR20180093225A | 2018-08-21 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
Download PDF:
Previous Patent: DISPLAY DEVICE
Next Patent: CONCRETENESS-BASED VIRTUAL CODE VERIFICATION METHOD, APPARATUS, AND SYSTEM
Next Patent: CONCRETENESS-BASED VIRTUAL CODE VERIFICATION METHOD, APPARATUS, AND SYSTEM