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. 20, 2010
Filed:
Mar. 07, 2003
Paul-andré Lavoie, Montreal, CA;
Richard Laliberté, St-Julie, CA;
Simon Besner, Côteau du Lac, CA;
Yvon Gagnon, Charlemagne, CA;
Martin Simoneau, St-Bruno, CA;
Alain Vallée, Varennes, CA;
Paul-André Lavoie, Montreal, CA;
Richard Laliberté, St-Julie, CA;
Simon Besner, Côteau du Lac, CA;
Yvon Gagnon, Charlemagne, CA;
Martin Simoneau, St-Bruno, CA;
Alain Vallée, Varennes, CA;
Bathium Canada Inc., Boucherville, CA;
Abstract
A process for extruding a thin positive electrode sheet having at least 40%/wt of solid content for a lithium polymer battery through a single or twin screw extruder is disclosed as well as a positive electrode sheet produced therefrom. A mixture of active cathodic intercalation material, lithium salt and electronic conductive material is mixed with a polymer of the polyether family in a ratio of at least 40% of total weight into the mixing chamber of an extrusion machine and extruded through a classical sheet die into a thin cathode sheet or film onto a substrate in sheet form.