Title:
蓄電素子
Document Type and Number:
Japanese Patent JP5821728
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a power storage element having a wound type electrode body, and capable of improving uniformity of a stress that the electrode body receives from the container.SOLUTION: A power storage element 10 comprises an electrode body 400 formed by winding a positive electrode and a negative electrode via a separator around a winding shaft. An outer edge of a cross section vertical to the winding shaft of the electrode body 400 has an upper curve section 401 and a lower curve section 402 whose curvature varies so that a curvature radius gets smaller as a longitudinal end of the cross section.
Inventors:
Fumitaka Imamura
Application Number:
JP2012061944A
Publication Date:
November 24, 2015
Filing Date:
March 19, 2012
Export Citation:
Assignee:
Gs Yuasa Co., Ltd.
International Classes:
H01M10/04; H01M2/02
Domestic Patent References:
| JP2011090860A | ||||
| JP2007095569A | ||||
| JP2010146759A | ||||
| JP2000182591A | ||||
| JP2009541934A |
Attorney, Agent or Firm:
Hiromori Arai