Title:
POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2016021281
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power storage device capable of suppressing a short-circuit between a positive electrode tab and a negative electrode.SOLUTION: A secondary battery 10 comprises an electrode assembly 14 laminating a positive electrode 21, a negative electrode 24, and a separator 27. The negative electrode 24 has a size slightly larger than the positive electrode 21. In the secondary battery 10, the separator 27 projects from a part of a first side 27c, and has a tab opposing part 27g covering a root of a positive electrode tab. In a lamination direction of the electrode assembly 14, the negative electrode 24 has a concave short-circuit suppressing part 33 concave from a first side 25c of the negative electrode 24 in a portion where the negative electrode 24 is opposite to the root of positive electrode tab 31.SELECTED DRAWING: Figure 2
Inventors:
MINAGATA ATSUSHI
OKUDA MOTOAKI
OKUDA MOTOAKI
Application Number:
JP2014143470A
Publication Date:
February 04, 2016
Filing Date:
July 11, 2014
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
H01M10/04; H01G11/52; H01G11/70; H01M2/18; H01M2/26; H01M4/02; H01M4/13; H01M10/0585
Domestic Patent References:
| JP2002252023A | 2002-09-06 | |||
| JP2011165481A | 2011-08-25 | |||
| JP2014123454A | 2014-07-03 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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