Title:
BATTERY MANAGEMENT DEVICE AND BATTERY MANAGEMENT PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/157373
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technique that makes it possible to accurately evaluate the health of a battery without excessively relying on the degree of progressive degradation. A battery management device according to the present invention evaluates the health of a battery using a first voltage change in a first period starting from a starting point before an inflection point of a voltage curve obtained after completion of charging and a second voltage change in a second period starting from a starting point before an inflection point of a voltage curve obtained after completion of discharging (see FIG. 5).
Inventors:
TSUNODA JUN (JP)
UEDA YUTAKA (JP)
FUJIMOTO HIROYA (JP)
ISOZAKI ERI (JP)
KOUNO TORU (JP)
WAKABAYASHI RYO (JP)
UEDA YUTAKA (JP)
FUJIMOTO HIROYA (JP)
ISOZAKI ERI (JP)
KOUNO TORU (JP)
WAKABAYASHI RYO (JP)
Application Number:
PCT/JP2022/038368
Publication Date:
August 24, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
G01R31/392; G01R31/396; H01M10/48; H02J7/00
Domestic Patent References:
| WO2022024235A1 | 2022-02-03 | |||
| WO2021020250A1 | 2021-02-04 | |||
| WO2019116640A1 | 2019-06-20 | |||
| WO2019049728A1 | 2019-03-14 | |||
| WO2022162777A1 | 2022-08-04 |
Foreign References:
| JP2019020310A | 2019-02-07 | |||
| JP2003068368A | 2003-03-07 | |||
| JP2002189065A | 2002-07-05 | |||
| JP2011054413A | 2011-03-17 | |||
| JP2019197056A | 2019-11-14 | |||
| JP2022169917A | 2022-11-10 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
Download PDF:
Previous Patent: ULTRASONIC MOTOR
Next Patent: LAMINATE HAVING GROUP 13 ELEMENT NITRIDE SINGLE CRYSTAL SUBSTRATE
Next Patent: LAMINATE HAVING GROUP 13 ELEMENT NITRIDE SINGLE CRYSTAL SUBSTRATE