Back to results
US 5,176,968 AGranted
Electrochemical cell
AssigneeDuracell Inc.
InventorsJane A. Blasi, Richard M. Mank, Rowland A. Griffin
Life of this patent
Estimating the term…
Abstract
The invention relates to a non-aqueous electrochemical cell having spirally wound electrodes and a separator having a basis weight of at least 20 g/m.sup.2 and comprising melt blown non-woven polypropylene fibers.
Claims5
A non-aqueous electrochemical cell comprising an alkali metal anode, comprising lithium foil a solid active cathode, comprising manganese dioxide and a separator therebetween wherein said anode, cathode and separator are spirally wound together;
- wherein said separator is a laminate of two plies of a porous non-woven fabric of polypropylene fibers, said separator having a basis weight of at least 20 g/m.sup.2 and a thickness of between about 1.5 and 6 mils, wherein said separator is capable of reducing current flow in the cell at a temperature below the melting point of the polyolefin.
Dependencies are inferred from the claim text.