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. 26, 2014
Filed:
Jun. 27, 2012
Satoshi Wada, Takasaki, JP;
Isao Mugima, Takasaki, JP;
Tomomi Nakamura, Takasaki, JP;
Masaru Kihara, Takasaki, JP;
Toshiki Sato, Takasaki, JP;
Satoshi Wada, Takasaki, JP;
Isao Mugima, Takasaki, JP;
Tomomi Nakamura, Takasaki, JP;
Masaru Kihara, Takasaki, JP;
Toshiki Sato, Takasaki, JP;
FDK Twicell Co., Ltd., Takasaki-shi, JP;
Abstract
A negative-electrode platefor use in a cylindrical cell, intended to be laid over a positive-electrode platewith a separatorinterposed between and rolled to form a cylindrical electrode body, with the positive-electrode plateinside, the electrode body being arranged in a bottomed cylindrical outer canto form the cylindrical cell, comprises a first negative-electrode partwhich is to face the positive-electrode plateon either side, with the separatorbetween, when formed into the electrode body, and a second negative-electrode partwhich is to form the innermost circumference of the electrode bodyand face the positive-electrode plateonly on one side, with the separatorbetween, when formed into the electrode body, the second negative-electrode partbeing lower in negative-electrode active material density than the first negative-electrode part