Title:
DEFECTIVE POROUS SHEET DETECTION SYSTEM AND DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/010294
Kind Code:
A1
Abstract:
The present invention relates to a detection system for detecting a defective porous sheet. A measurement system according to an embodiment of the present invention comprises: a jig having a through-hole; a heating unit; a temperature sensor; a control unit; a Gurley value measurement unit; and a determination unit. According to an aspect of the present invention, by using the Gurley value and the shutdown temperature of a porous sheet itself, there can be provided a novel system capable of detecting in advance a porous sheet itself which may be a defective separator after a porous coating layer is coated.
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Inventors:
BAE WON-SIK (KR)
KWAK SANG-MIN (KR)
LEE JOO-SUNG (KR)
KWAK SANG-MIN (KR)
LEE JOO-SUNG (KR)
Application Number:
PCT/KR2021/008754
Publication Date:
January 13, 2022
Filing Date:
July 08, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01N15/08; G01K5/58; G01K5/64; G01K5/70; G01K13/00; H01M50/40
Foreign References:
| KR20200002437A | 2020-01-08 | |||
| KR20180024101A | 2018-03-08 | |||
| KR20190113682A | 2019-10-08 | |||
| US20190237733A1 | 2019-08-01 | |||
| JP2020043081A | 2020-03-19 | |||
| KR20200084325A | 2020-07-10 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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