The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 07, 2015

Filed:

Mar. 21, 2012
Applicants:

Shin Serizawa, Minato-ku, JP;

Hiroo Takahashi, Minato-ku, JP;

Daisuke Kawasaki, Minato-ku, JP;

Jiro Iriyama, Minato-ku, JP;

Ryuichi Kasahara, Minato-ku, JP;

Emiko Fujii, Minato-ku, JP;

Tetsuya Kajita, Minato-ku, JP;

Tatsuji Numata, Minato-ku, JP;

Inventors:

Shin Serizawa, Minato-ku, JP;

Hiroo Takahashi, Minato-ku, JP;

Daisuke Kawasaki, Minato-ku, JP;

Jiro Iriyama, Minato-ku, JP;

Ryuichi Kasahara, Minato-ku, JP;

Emiko Fujii, Minato-ku, JP;

Tetsuya Kajita, Minato-ku, JP;

Tatsuji Numata, Minato-ku, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/12 (2006.01); H01M 2/02 (2006.01);
U.S. Cl.
CPC ...
H01M 2/02 (2013.01); Y10T 29/49112 (2015.01); H01M 2/1235 (2013.01); H01M 2/1247 (2013.01); H01M 2/1252 (2013.01); H01M 2/12 (2013.01); Y02E 60/122 (2013.01);
Abstract

A secondary battery according to the present exemplary embodiment is a secondary battery including a laminated electrode body provided with at least one pair of positive and negative electrodes and an outer enclosure that accommodates the laminated electrode body, wherein the outer enclosure includes one or more concave portions, inside a border corresponding to an outer edge of an electrode surface of an outermost layer of the laminated electrode body, on a surface facing the electrode surface, and wherein, when a band-shaped outer circumferential region having an area that is a half of an area inside the border is set inside the border, at least one of the concave portions is located inside the outer circumferential region.


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