Title:
BATTERY REPLACEMENT DEVICE, BATTERY STATE DIAGNOSIS SERVER DEVICE AND METHOD, AND BATTERY REPLACEMENT SYSTEM COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/038275
Kind Code:
A1
Abstract:
The present invention relates to a battery replacement device, a battery state diagnosis server device and method, and a battery replacement system comprising same. The battery replacement device, the battery state diagnosis server device and method, and the battery replacement system comprising same: discharge a specific battery pack of which charging is stopped so as to estimate at least one piece of state information of the discharged specific battery pack; resume charging of the specific battery pack; and estimate impedance information from at least one piece of state information of the battery pack, thereby determining the state of health (SoH) and the presence or absence of defects of the battery pack from the impedance information. Accordingly, it is possible to provide a battery replacement device, a battery state diagnosis server device and method, and a battery replacement system comprising same, having high efficiency and high reliability.
Inventors:
LEE KEUNWOOK (KR)
Application Number:
PCT/KR2022/010421
Publication Date:
March 16, 2023
Filing Date:
July 18, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B60L53/80; B60L3/00; B60L58/12; B60L58/16; B60L58/18; G01R31/392; H02J7/00
Domestic Patent References:
| WO2021040146A1 | 2021-03-04 |
Foreign References:
| KR20200020566A | 2020-02-26 | |||
| KR20180060622A | 2018-06-07 | |||
| KR20210077948A | 2021-06-28 | |||
| JP2020034426A | 2020-03-05 | |||
| KR20210119789A | 2021-10-06 |
Other References:
See also references of EP 4234315A4
Attorney, Agent or Firm:
CHOI, Hee-Kyeong (KR)
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