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:
Dec. 16, 2003
Filed:
Mar. 22, 2001
Applicant:
Inventors:
Koichiro Kezuka, Miyagi, JP;
Takahiro Endo, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/64 ; H01M 4/70 ;
U.S. Cl.
CPC ...
H01M 4/64 ; H01M 4/70 ;
Abstract
A battery electrode that can be bent in any shape without deterioration in battery performance. The metal current collector of the battery electrode has cut lines. This battery electrode is used for the positive or negative electrode of a non-aqueous electrolyte battery. The length of the cut lines is such that the ratio of y/x is from 0.2 to 0.9, with y being the total length of cut lines, and x being the distance between two points at which the extension of the cut line crosses both edges of the current collector.