Structure stable meltable cell disphragm and its making method

Application Number: 00106839
Application Date: 2000.04.19
Publication Number: 1271184
Publication Date: 2000.10.25
Priority Information: 1999/4/20 US 09/296,682
International: B32B5/32;H01M2/14;H01M2/16
Applicant(s) Name: Sikad Co.
Inventor(s) Name: R. W. Col;P. C. Cook;S. E. Heks
Patent Agency Code: 11038
Patent Agent: ren zonghua
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.