Title:
BATTERY MANAGEMENT DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/153744
Kind Code:
A1
Abstract:
A battery management device according to one embodiment of the present invention comprises: an inflection point extraction unit for extracting an inflection point from a battery profile representing a change in voltage of a battery over time; and a control unit for determining, for the battery, a target voltage, a target temperature and a target current amount corresponding to the inflection point, determining a reference voltage corresponding to the target temperature and the target current amount in a preset voltage table, and diagnosing whether lithium plating occurs in the battery on the basis of the reference voltage and the target voltage.
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Inventors:
LEE SUN-JONG (KR)
KIM CHEOL-TAEK (KR)
KIM JI-SU (KR)
PARK HEE-JU (KR)
KIM CHEOL-TAEK (KR)
KIM JI-SU (KR)
PARK HEE-JU (KR)
Application Number:
PCT/KR2023/001679
Publication Date:
August 17, 2023
Filing Date:
February 06, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/3842; G01R19/00; G01R19/10; G01R19/165; G01R31/396; H01M10/42; H01M10/44; H01M10/48
Foreign References:
| KR101548327B1 | 2015-08-28 | |||
| JP6968302B1 | 2021-11-17 | |||
| KR20210040423A | 2021-04-13 | |||
| CN113875118A | 2021-12-31 | |||
| US20190229378A1 | 2019-07-25 | |||
| KR20220016361A | 2022-02-09 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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