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.
Patent No.:
Date of Patent:
Mar. 29, 2011
Filed:
Jan. 21, 2005
Kazunori Ozawa, Tokyo, JP;
Kazuhiro Takahashi, Tokyo, JP;
Yuuji Tanjou, Kanagawa, JP;
Takeshi Miyamoto, Kanagawa, JP;
Kazunori Ozawa, Tokyo, JP;
Kazuhiro Takahashi, Tokyo, JP;
Yuuji Tanjou, Kanagawa, JP;
Takeshi Miyamoto, Kanagawa, JP;
Enax, Inc., Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama-Shi, JP;
Abstract
To provide a high capacity thin-type secondary battery suitably formed into a module and having no thickness fluctuation, excellent quality stability, and excellent heat radiation properties, by using a sheet-like separator having expansion anisotropy due to penetration of an electrolytic solution. A method of producing a thin-type secondary battery includes the steps of: sandwiching a sheet-like separator having expansion anisotropy due to penetration of an electrolytic solution, by a sheet-like electrode pair; inserting the separator sandwiched by the electrode pair and injecting the electrolytic solution, into a thin-type outer wrapper having an opened portion; penetrating the electrolytic solution into the separator without fixing motion of the separator in a maximum expanding direction and in a state where the maximum expanding direction of the separator and a penetrating direction of the electrolytic solution are substantially parallel to each other; and sealing the opened portion into a tightly sealed state.