Title:
BATTERY MANAGEMENT DEVICE AND BATTERY MANAGEMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2024/042758
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technology capable of diagnosing the deterioration speed of a battery in a short time. A battery management device according to the present invention specifies a first period during an idle period and a second period after the first period, and estimates the deterioration speed of a battery dependent on the battery temperature, on the basis of a ratio between a first change portion of a voltage during the first period and a second change portion of the voltage during the second period (see fig. 5).
Inventors:
KOUNO TORU (JP)
TSUNODA JUN (JP)
UEDA YUTAKA (JP)
FUJIMOTO AKIRA (JP)
FUJIMOTO HIROYA (JP)
ISOZAKI ERI (JP)
AKIZUKI KEITO (JP)
TSUNODA JUN (JP)
UEDA YUTAKA (JP)
FUJIMOTO AKIRA (JP)
FUJIMOTO HIROYA (JP)
ISOZAKI ERI (JP)
AKIZUKI KEITO (JP)
Application Number:
PCT/JP2023/011628
Publication Date:
February 29, 2024
Filing Date:
March 23, 2023
Export Citation:
Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
G01R31/392; G01R31/382; G01R31/385; H01M10/48; H02J7/00
Domestic Patent References:
| WO2022024235A1 | 2022-02-03 |
Foreign References:
| JP2016133513A | 2016-07-25 | |||
| JP2021060198A | 2021-04-15 | |||
| JP2009080104A | 2009-04-16 | |||
| JP2006080032A | 2006-03-23 | |||
| JP2020054214A | 2020-04-02 | |||
| JP2021140991A | 2021-09-16 | |||
| US20150301121A1 | 2015-10-22 | |||
| CN109725266A | 2019-05-07 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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