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:
Jul. 10, 2012
Filed:
Mar. 10, 2006
Yuji Uchida, Fukushima, JP;
Takahiro Endo, Fukushima, JP;
Tomoyuki Nakamura, Fukushima, JP;
Takeru Yamamoto, Fukushima, JP;
Takehiko Suwa, Fukushima, JP;
Yoshiaki Naruse, Fukushima, JP;
Yuji Uchida, Fukushima, JP;
Takahiro Endo, Fukushima, JP;
Tomoyuki Nakamura, Fukushima, JP;
Takeru Yamamoto, Fukushima, JP;
Takehiko Suwa, Fukushima, JP;
Yoshiaki Naruse, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A polymer electrolyte capable of obtaining superior discharge characteristics and a battery using it are provided. A cathode () and an anode () are wound with a separator () in between. After that, the wound body is contained inside a package member. Then, an electrolytic composition containing a solvent, polyvinyl acetal or the derivative thereof, and lithium hexafluorophosphate is added thereto. Polyvinyl acetal or the derivative thereof is polymerized by using lithium hexafluorophosphate as a catalyst. Thereby, a polymer electrolyte () is formed, and the discharge characteristics are improved.