Title:
POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/082317
Kind Code:
A1
Abstract:
In this invention, a lid body from a secondary battery comprises: a lid main body portion closing the opening of a case main body and supported by the case-side matching surface surrounding the opening of the case main body; and an quadrangular column-shaped insertion portion protruding from the lid main body portion toward the interior of the case main body and extending along the internal peripheral surfaces of the case main body. The lid body further comprises round surface-shaped corner portions, each present at a forward extremity edge of the insertion portion in a protruding direction toward which the insertion portion protrudes from the lid main body portion. The lower limit value for the measurements of surface removal at the corner portion is the average particle size of the lid body material.
Inventors:
OIDE RYUJI (JP)
KURITA MIKIYA (JP)
KURITA MIKIYA (JP)
Application Number:
PCT/JP2016/083286
Publication Date:
May 18, 2017
Filing Date:
November 09, 2016
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
H01G11/78; H01M50/103; H01M50/15; H01M50/159; H01M50/169
Foreign References:
| JP2014093257A | 2014-05-19 | |||
| JP2006324160A | 2006-11-30 | |||
| JP2012079476A | 2012-04-19 | |||
| JP2008159536A | 2008-07-10 | |||
| JPH1186809A | 1999-03-30 | |||
| JP2002292486A | 2002-10-08 | |||
| JP2015011948A | 2015-01-19 |
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
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