Title:
蓄電装置の検査方法
Document Type and Number:
Japanese Patent JP6819449
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an inspection method of power storage device capable of determining lamination deviation of a positive electrode and a negative electrode in an electrode assembly easily.SOLUTION: A secondary battery includes a battery assembly 12 laminating a positive electrode 20 having a positive electrode tab 23 projecting from a first marginal part 20a, and a negative electrode 30 having a negative electrode tab 33 projecting from a first marginal part 30a. A direction along the first marginal part 20a, and a direction along the first marginal part 30a are matched as width direction. An inspection method of secondary battery includes: a measurement step of measuring a first distance A between the inner end face 18a of a positive electrode tab group 18 where positive electrode tabs 23 are laminated and the inner end face 19a of a negative electrode tab group 19 where negative electrode tabs 33 are laminated, in the side view of viewing the battery assembly 12 from the lamination direction, and measuring a second distance B between the outer end face 18b of the positive electrode tab group 18 and the outer end face 19b of the negative electrode tab group 19; and a determination step of determining lamination deviation of the positive electrode 20 and the negative electrode 30 in the width direction based on the first and second distances A, B.SELECTED DRAWING: Figure 4
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Inventors:
Kawabata Eikatsu
Application Number:
JP2017089727A
Publication Date:
January 27, 2021
Filing Date:
April 28, 2017
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
H01M10/04; H01G11/84; H01G13/00
Domestic Patent References:
| JP2013143213A | ||||
| JP2015176699A | ||||
| JP2018060699A |
Foreign References:
| WO2013146513A1 | ||||
| US20110274960 | ||||
| KR1020130124098A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda