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. 08, 2009
Filed:
Feb. 26, 2004
Peter G Bowles, Gosport, GB;
Emmanuel I Eweka, Gosport, GB;
Cyril O Giwa, Gosport, GB;
Andrew G Ritichie, Farnborough, GB;
Peter G Bowles, Gosport, GB;
Emmanuel I Eweka, Gosport, GB;
Cyril O Giwa, Gosport, GB;
Andrew G Ritichie, Farnborough, GB;
Qinetiq Limited, Farnborough, Hants, GB;
Abstract
An electrode assembly is formed by respectively overlaying a sheet cathode, a sheet separatorand a double-sided sheet anodeto form a stacked structure, and subjecting the stacked structure to multiple folds, wherein the initial fold comprises folding the cathode in half around the double-sided anode so as to surround the respective upper and lower active anode surfaces thereof. The multiple folds may comprise one or more subsequent parallel folds made with the fold line D-D extending perpendicular to the original length of the stacked structure such that its overall length is halved at each fold. A pouch battery comprising said electrode assembly has improved safety and performance characteristics. The pouch battery construction has especial application to lithium primary batteries.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile