Title:
二次電池状態検出装置および二次電池状態検出方法
Document Type and Number:
Japanese Patent JP6895786
Kind Code:
B2
Abstract:
To accurately detect the state of a secondary battery even when an electrolyte increases or decreases.SOLUTION: Provided is a secondary battery state detector 1 for detecting the state of a secondary battery 14, comprising: calculation means (control unit 10) for calculating the element values of elements constituting an equivalent circuit model of the secondary battery; correction means (control unit 10) for correcting the element values of the equivalent circuit model calculated by the calculation means to element values in the case when the secondary battery is in a reference state; and estimation means (control unit 10) for estimating the state of the secondary battery on the basis of the element values of the equivalent circuit model in the reference state as corrected by the correction means. The secondary battery state detector 1 is characterized in that at least a temperature and an OCV or an index value derived from the OCV are used as the state values that represent the reference state.SELECTED DRAWING: Figure 1
Inventors:
Shinji Yokoyama
Application Number:
JP2017066456A
Publication Date:
June 30, 2021
Filing Date:
March 29, 2017
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
Furukawa as Co., Ltd.
Furukawa as Co., Ltd.
International Classes:
G01R31/392; G01R31/367; H01M10/48; H02J7/00
Domestic Patent References:
| JP6550036B2 | ||||
| JP201695959A | ||||
| JP9211090A | ||||
| JP2014178213A |
Attorney, Agent or Firm:
Takuya Saito
Kiyoshi Kuruma
Yoshihiko Emura
Megumi Okubo
Kiyoshi Kuruma
Yoshihiko Emura
Megumi Okubo