Title:
電池状態推定装置及び電源装置
Document Type and Number:
Japanese Patent JP6790893
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a battery state estimation device and a power supply device which can estimate the state of a secondary battery highly precisely.SOLUTION: A battery state estimation device 1 includes a battery information acquisition unit 40, a history information acquisition unit 41, a characteristics information storage unit 30, a characteristics information extraction unit 60, a characteristic value calculation unit 61, and an estimation unit 62. The characteristics information storage unit 30 stores, in advance, positive electrode characteristics information and negative electrode characteristics information showing the correspondence relation between the battery information of a secondary battery 2 and the characteristic values of the positive electrode and the negative electrode, the positive electrode characteristics information and negative electrode characteristics information being associated with usage history information of the secondary battery 2. The characteristics information extraction unit 61 extracts the positive electrode characteristics information and the negative electrode characteristics information corresponding to the usage history information of the secondary battery 2, from the characteristics information storage unit 30. The characteristic value calculation unit 50 calculates the characteristic values of the positive electrode and the negative electrode in the operation range of the secondary battery 2 based on the extracted positive electrode characteristics information and negative electrode characteristics information and the battery information of the secondary battery 2. The estimation unit 60 estimates the amount of the electric power of the secondary battery 2 which can be charged or discharged, based on the calculated characteristic values of the positive electrode and the negative electrode.SELECTED DRAWING: Figure 1
Inventors:
Ichiro Yamada
Nobuo Yamamoto
Yuta Shimonishi
Yoshinobu Sato
Nobuo Yamamoto
Yuta Shimonishi
Yoshinobu Sato
Application Number:
JP2017027300A
Publication Date:
November 25, 2020
Filing Date:
February 16, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G01R31/387; H01M4/587; H01M10/42; H01M10/48; H02J7/00
Domestic Patent References:
| JP2016223923A |
Foreign References:
| WO2012073997A1 | ||||
| WO2016135853A1 | ||||
| US5284719 |
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office