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:
Feb. 12, 2002
Filed:
Apr. 20, 1999
Applicant:
Inventors:
Ronald W. Call, Rock, SC (US);
Pierre C. Cook, Concord, NC (US);
Shawn E. Hux, Gastonia, NC (US);
Khuy Van Nguyen, Charlotte, NC (US);
Wei-Ching Yu, Spartanburg, SC (US);
Assignee:
Celgard Inc., Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 1/050 ; H01M 2/16 ; H01M 2/18 ;
U.S. Cl.
CPC ...
H01M 1/050 ; H01M 2/16 ; H01M 2/18 ;
Abstract
A fusible, structurally stabilized battery separator is disclosed. The separator is formed by extruding a cylindrical parison of a polymer film and quenching the film on both sides with a low temperature fluid stream prior to processing the film to impart microporosity. Most preferably, the film includes at least a polyethylene layer and polypropylene layer.