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:
Oct. 25, 2011
Filed:
Oct. 14, 2008
Takumi Katsurao, Fukushima-ken, JP;
Katsuo Horie, Fukushima-ken, JP;
Yukio Ichikawa, Fukushima-ken, JP;
Aisaku Nagai, Fukushima-ken, JP;
Takumi Katsurao, Fukushima-ken, JP;
Katsuo Horie, Fukushima-ken, JP;
Yukio Ichikawa, Fukushima-ken, JP;
Aisaku Nagai, Fukushima-ken, JP;
Kureha Corporation, Tokyo, JP;
Abstract
A process for producing a polymer electrolyte for a nonaqueous battery by mixing a vinylidene fluoride copolymer and a nonaqueous electrolytic solution with a solvent that can be evaporated, wherein the vinylidene fluoride copolymer comprises 80 to 97 wt. % of vinylidene fluoride monomer units and 3 to 20 wt % of units of at least one monomer copolymerizable with vinylidene fluoride monomer and has an inherent viscosity of 1.5 to 10 dl/g, and evaporating the solvent to form a polymer electrolyte comprising the vinylidene fluoride copolymer impregnated with the nonaqueous electrolytic solution.