Title:
POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2016103361
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent deformation at the end of a separator due to heat, generated at a weld zone when welding a positive electrode and a positive electrode conductive member and a negative electrode and a negative electrode conductive member.SOLUTION: In a secondary battery 10 as a power storage device, a flat electrode assembly 12 formed by winding a strip positive electrode 13 and a strip negative electrode 14, while interposing a strip separator 15, is housed in a case 11, and the ends 13c, 14c of the positive electrode 13 and negative electrode 14 are arranged at the bend 12b of the electrode assembly 12. The end 15a of the separator 15 is arranged at a place where the distance L1 of the weld range 23 of the positive electrode 13 and a positive electrode conductive member 19 and the negative electrode 14 and a negative electrode conductive member 20 and the end 15a of the separator 15, in the winding direction, is equal to or longer than the distance of the weld zone 19a of the positive electrode 13 and the positive electrode conductive member 19 and the positive electrode active material layer and the distance of the weld zone 20 of the negative electrode 14 and a negative electrode conductive member 20 and the negative electrode active material layer.SELECTED DRAWING: Figure 1
Inventors:
KOJIMA AKIRA
OKAMOTO YUKI
IWATA KOJI
MATSUSHIRO MASARU
SHINODA HIDEAKI
OKAMOTO YUKI
IWATA KOJI
MATSUSHIRO MASARU
SHINODA HIDEAKI
Application Number:
JP2014240295A
Publication Date:
June 02, 2016
Filing Date:
November 27, 2014
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
H01M10/04; H01G9/048; H01G11/52; H01G11/74; H01M2/08; H01M2/18; H01M2/26; H01M10/0587
Domestic Patent References:
| JP2013114940A | 2013-06-10 | |||
| JP2015103479A | 2015-06-04 | |||
| JP2003338307A | 2003-11-28 | |||
| JP2012099264A | 2012-05-24 | |||
| JP2007026939A | 2007-02-01 | |||
| JP2012069290A | 2012-04-05 | |||
| JP2010073408A | 2010-04-02 | |||
| JP2010257945A | 2010-11-11 |
Foreign References:
| WO2011132650A1 | 2011-10-27 | |||
| WO2012023392A1 | 2012-02-23 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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