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:
Aug. 30, 2011
Filed:
Dec. 01, 2006
Kazuhito Hatta, Fukushima, JP;
Masato Sato, Fukushima, JP;
Tsuyoshi Sugiyama, Fukushima, JP;
Hiroyuki Yamada, Fukushima, JP;
Koji Sakai, Fukushima, JP;
Norio Mamada, Fukushima, JP;
Takeru Yamamoto, Fukushima, JP;
Kazuo Honda, Fukushima, JP;
Kazuhito Hatta, Fukushima, JP;
Masato Sato, Fukushima, JP;
Tsuyoshi Sugiyama, Fukushima, JP;
Hiroyuki Yamada, Fukushima, JP;
Koji Sakai, Fukushima, JP;
Norio Mamada, Fukushima, JP;
Takeru Yamamoto, Fukushima, JP;
Kazuo Honda, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery pack is provided. The battery pack includes: a generator device having a battery element disposed on a flexible covering material folded to cover the battery element, wherein three sides of the flexible covering material around the battery element are sealed; a rigid covering material for covering the generator device, having an opening and being bonded to the flexible covering material of the generator device; and a cover fitted into the opening of the rigid covering material, wherein the rigid covering material has a three-layer structure having an outer packaging layer, a metal layer, and a heat-bonding layer which are stacked on one another, and the heat-bonding layer is one selected from an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, an ethyl acrylate copolymer, a methyl acrylate copolymer, a methacrylic acid copolymer, a methyl methacrylate copolymer, polyacrylonitrile, an ethylene vinyl alcohol resin, a polyamide resin, a polyester resin, acid-modified polypropylene, or an ionomer.