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:
Nov. 15, 2011

Filed:

Feb. 17, 2010
Applicants:

Masaru Hiratsuka, Tokyo, JP;

Mitsuo Sakamoto, Tokyo, JP;

Masanori Naritomi, Tokyo, JP;

Inventors:

Masaru Hiratsuka, Tokyo, JP;

Mitsuo Sakamoto, Tokyo, JP;

Masanori Naritomi, Tokyo, JP;

Assignees:

Sony Co., Ltd., Tokyo, JP;

Taisei Plas Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 2/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An outer casing of a non-aqueous electrolyte battery is capable of being mass-produced as well as thin and resistant to damage. The outer casingcomprises a casing bodyand a cover. After being internally packaged, a non-aqueous electrolyte battery, e.g. a lithium-ion polymer secondary battery, is sandwiched between the casing bodyand the cover, which are then joined together integrally. The coveris formed from a film-shaped sheet materialof a synthetic resin to make the outer casingthin. The casing bodyand the coverhave a casing body outer peripheral frameand a cover outer peripheral frame, respectively, formed by injection molding. Joint portions of the casing bodyand the coverhave stepped portionsand, respectively. The stepped portions ensure the mechanical strength against shock and impact. With this structure, the outer casingis resistant to damage.


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