Title:
BATTERY STATE DETECTION DEVICE AND BATTERY PROTECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/270736
Kind Code:
A1
Abstract:
A battery state detection device according to an embodiment of the present invention comprises: a first fuse connected to a positive electrode of a battery; a second fuse connected to a negative electrode of the battery; a high resistance element connected to the first fuse and the second fuse and disposed in parallel with the battery; a sensor for measuring a current flowing through the high resistance element or a voltage applied to the high resistance element; and a control unit for determining whether a system voltage and the fuses are disconnected, from the current or voltage measured by the sensor, wherein the battery state detection device may check whether the system voltage and the fuses are disconnected, at low costs.
Inventors:
JEONG SUYEUP (KR)
KIM MINKYU (KR)
KIM MINKYU (KR)
Application Number:
PCT/KR2022/005726
Publication Date:
December 29, 2022
Filing Date:
April 21, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/392; G01R31/367; G01R31/382; G01R31/396; G01R31/52; G01R31/56; H01M10/42; H02J7/00
Foreign References:
| JP2018021880A | 2018-02-08 | |||
| KR20200042238A | 2020-04-23 | |||
| JP2010230678A | 2010-10-14 | |||
| JP2018054390A | 2018-04-05 | |||
| KR20180037812A | 2018-04-13 | |||
| KR20210082830A | 2021-07-06 |
Other References:
See also references of EP 4174507A4
Attorney, Agent or Firm:
CHOI, Hee-Kyeong (KR)
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