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:
Jan. 17, 2006
Filed:
Oct. 30, 2002
Applicants:
Kelly D. Barton, Athens, PA (US);
Donald G. Gray, Towanda, PA (US);
Guy E. Rockwell, Ulster, PA (US);
Inventors:
Kelly D. Barton, Athens, PA (US);
Donald G. Gray, Towanda, PA (US);
Guy E. Rockwell, Ulster, PA (US);
Assignee:
E. I. du Pont de Nemours and Company, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
Multilayer articles, particularly multilayer articles having electrical or ionic conductivity, are made using an improved melt extrusion process. The process includes a combination step in which a macroscopically homogeneous mass is formed prior to introduction into an extruder. The multilayer article may include an electrode layer and a separator layer that are extruded onto a metal current collector. Such structures are particularly useful in lithium-ion batteries.