Title:
SECONDARY BATTERY DEFECT INSPECTION DEVICE AND DEFECT INSPECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/210924
Kind Code:
A1
Abstract:
The present invention relates to a device for inspecting for defects of a second battery comprising a jelly-roll having a first electrode tab and a second electrode tab and having an electrode non-coated part wound around the outermost portion thereof, the device comprising: a first contact unit coming in contact with either the first electrode tab or the second electrode tab; a second contact unit which comes in contact with at least a portion of the electrode non-coated part, and which moves in the center direction of the jelly-roll so as to come in contact with the jelly-roll; and an inspection unit, which comes in electrical contact with the first and second electrode tabs so as to measure at least one from among current, voltage, and resistance of the jelly-roll, and thus inspects whether the jelly-roll is defective.
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Inventors:
LEE YONGGYUN (KR)
YOU JONG SEONG (KR)
YOU JONG SEONG (KR)
Application Number:
PCT/KR2023/000501
Publication Date:
November 02, 2023
Filing Date:
January 11, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/04; G01R31/52; H01M10/42
Foreign References:
| JP2009043418A | 2009-02-26 | |||
| KR19980022709A | 1998-07-06 | |||
| JP2016001195A | 2016-01-07 | |||
| CN216117702U | 2022-03-22 | |||
| JP2000235871A | 2000-08-29 | |||
| KR20220052003A | 2022-04-27 |
Attorney, Agent or Firm:
CHOI, Hee-Kyeong (KR)
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