Title:
An inspection method of a rechargeable battery
Document Type and Number:
Japanese Patent JP6125016
Kind Code:
B2
Abstract:
A test method for a secondary battery, which early detects the occurrence of the future micro short-circuiting in the screening and promotes to render the contaminant harmless while suppressing the short-circuiting between the positive and negative electrodes in the aging, is provided. This test method includes Step S12 of charging the secondary battery, Steps S13 and S14 of aging the secondary battery in a first pressed state, Step S17 of measuring a battery voltage (V1) after the aging, Step S18 of screening the secondary battery in a second pressed state with a higher pressure than in the first pressed state, and Step S19 of measuring a battery voltage (V2) after the screening. Whether the battery has the internal short-circuiting or not is determined (Step S20) based on the difference between the voltage (V1) measured in Step S17 and the voltage (V2) measured in Step S19.
Inventors:
Atsuko Kurihara
Kenichi Sakai
Daisuke Iga
Amamiya Chinatsu
Hiroaki Tanizaki
Kenichi Sakai
Daisuke Iga
Amamiya Chinatsu
Hiroaki Tanizaki
Application Number:
JP2015528056A
Publication Date:
May 10, 2017
Filing Date:
July 24, 2013
Export Citation:
Assignee:
Automotive Energy Supply Corporation
International Classes:
G01R31/36; H01M10/04; H01M10/48
Domestic Patent References:
| JP2010153275A | ||||
| JP2012104276A | ||||
| JP2010086754A |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi
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