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:
Apr. 08, 2003
Filed:
Jan. 20, 2000
Norio Takami, Yokohama, JP;
Hiroyuki Hasebe, Chigasaki, JP;
Takahisa Ohsaki, Yokohama, JP;
Motoya Kanda, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
Provided is a nonaqueous electrolyte secondary battery, comprising an electrode group including a positive electrode, a negative electrode, and a porous separator interposed between the positive electrode and the negative electrode, the pores of the porous separator being closed when heated, a nonaqueous electrolyte held by the porous separator, and a jacket formed of a sheet including a thermoplastic resin layer forming at least a portion of the inner surface, having the electrode group housed therein, and having mutually facing regions of the thermoplastic resin layer heat-sealed to each other to seal the electrode group therein, wherein the positive electrode, the negative electrode and the separator are made integral, and the thermoplastic resin layer has a melting point higher than a pore-closing initiating temperature of the porous separator at which the pores of the separator begin to be closed.