Title:
非水電解質二次電池の検査方法
Document Type and Number:
Japanese Patent JP6788800
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve both of the reduction in time of an inspection time, and the accuracy of a battery resistance value.SOLUTION: A method for inspection of a nonaqueous electrolyte secondary battery comprises: a short circuit inspection step; a step (F1) of measuring a zonal capacity; a suspension step (G1); and steps (G2-G4) of getting a battery resistance value. In the zonal capacity-measuring step (F1), the zonal capacity is measured by discharging the nonaqueous electrolyte secondary battery at a predetermined discharge rate after the short circuit inspection step. In the suspension step (G1), the nonaqueous electrolyte secondary battery is left for a predetermined length of time after the zonal capacity-measuring step. In the steps (G2-G4) of getting a battery resistance value, the battery resistance value of the nonaqueous electrolyte secondary battery is obtained by charging the nonaqueous electrolyte secondary battery after the suspension step (G1), and performing a predetermined discharge process after adjustment to a predetermined voltage.SELECTED DRAWING: Figure 6
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Inventors:
Hiroaki Ikeda
Application Number:
JP2017056506A
Publication Date:
November 25, 2020
Filing Date:
March 22, 2017
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/058; G01R31/36; H01M10/04
Domestic Patent References:
| JP2012084326A | ||||
| JP2016162559A | ||||
| JP11250929A |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane
Michiko Oi
Hiroaki Yamane