Title:
CONTROL DEVICE FOR SECONDARY BATTERY, BATTERY PACK, AND METHOD FOR CONTROLLING SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/181650
Kind Code:
A1
Abstract:
This control device for a secondary battery corrects a deterioration level SOH of the secondary battery such that (1) SOH = AX + B, where X is the slope of a straight line connecting two extremal points from among a plurality of extremal points expressed by the curve V-dQ/dV or two points that are mathematically equivalent thereto, and A and B are constants obtained in advance from the relationship between X in a calibration sample and the deterioration level of the calibration sample. A battery pack provided with this control device for a secondary battery is very stable and contributes to stable energy supply and sustainable development targets.
More Like This:
Inventors:
KUME YUSUKE (JP)
ENDO EISHI (JP)
ENDO EISHI (JP)
Application Number:
PCT/JP2020/011031
Publication Date:
September 16, 2021
Filing Date:
March 13, 2020
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01M10/48; G01R31/392
Domestic Patent References:
| WO2011036760A1 | 2011-03-31 |
Foreign References:
| JP2019056595A | 2019-04-11 | |||
| JP2019078771A | 2019-05-23 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Download PDF: