Title:
APPARATUS AND METHOD FOR DETECTING BATTERY CELL FAILURE DUE TO UNKNOWN DISCHARGE CURRENT
Document Type and Number:
WIPO Patent Application WO/2017/095066
Kind Code:
A1
Abstract:
Disclosed is a method for detecting battery cell failure due to an unknown discharge current, comprising: connecting a detector between a battery cell and a power supply for supplying charging power; determining whether the battery cell has been charged by the charging power over a preset reference charging time for each battery cell; when the battery cell has been charged over the reference charging time for each battery cell, measuring the current value of the battery cell in real - time; determining whether the current value of the battery cell measured in real - time exceeds a preset defect-determining reference current range value for each battery cell; and when the current value of the battery cell exceeds a preset defect-determining reference current range value for each battery cell, determining the state of the battery cell as being in a failure state in which unknown discharging has occurred.
Inventors:
KOO JIN SAM (KR)
JEON KWANG SOO (KR)
PACK JUN HYUK (KR)
LEE DONG HYUN (KR)
KWON KYOUNG MIN (KR)
LEE JONG HWA (KR)
JEON KWANG SOO (KR)
PACK JUN HYUK (KR)
LEE DONG HYUN (KR)
KWON KYOUNG MIN (KR)
LEE JONG HWA (KR)
Application Number:
PCT/KR2016/013550
Publication Date:
June 08, 2017
Filing Date:
November 23, 2016
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
G01R31/36; G01R19/165; G08B3/10; G08B5/36; G08B21/18
Foreign References:
| KR100391421B1 | 2003-07-16 | |||
| JP2008043027A | 2008-02-21 | |||
| JP2012237660A | 2012-12-06 | |||
| JP2001228225A | 2001-08-24 | |||
| KR101215037B1 | 2012-12-24 |
Other References:
See also references of EP 3293533A4
Attorney, Agent or Firm:
LEE, Kangmin (KR)
Download PDF: