Title:
BATTERY DETERIORATION DETERMINATION DEVICE, AND BATTERY DETERIORATION DETERMINATION METHOD
Document Type and Number:
Japanese Patent JP2022108675
Kind Code:
A
Abstract:
To provide a battery deterioration determination device and battery deterioration determination method that can determine a state of health in progress of a battery.SOLUTION: A battery deterioration determination device 100 comprises: a cooling control unit 22 that controls an environment temperature of a battery to a measurement temperature equal to or lower than 15°C within any temperature range centering around a point where an allocation rate between solution resistance or ion movement resistance of preliminarily set AC impedance and charge movement resistance thereof is comparable; a battery AC impedance measurement device 120 that measures AC impedance data on the battery at the measurement temperature; and a battery deterioration determination unit 160 that determines a deterioration degree of the battery in comparison of measurement data which the battery AC impedance measurement device 120 measures with reference AC impedance data preliminarily measured under the same conditions as those of a reference battery.SELECTED DRAWING: Figure 8
Inventors:
SAKAMOTO TOSHIYUKI
Application Number:
JP2021003808A
Publication Date:
July 26, 2022
Filing Date:
January 13, 2021
Export Citation:
Assignee:
UNIV TOKAI
International Classes:
G01R31/392; G01R31/378; H01M10/42; H01M10/48; H02J7/00
Attorney, Agent or Firm:
Isono International Patent and Trademark Office
Previous Patent: Terminal equipment, base station equipment, and base station management equipment
Next Patent: Linear guidance device
Next Patent: Linear guidance device