Battery separator and method of making same
AssigneeEvanite Fiber Corporation
InventorsBob G. Rowland, George E. Monigold, Jr., Robert L. Brendle, Francis V. Rosse
Life of this patent
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Abstract
A battery separator comprises a fibrous mat which is filled with a mixture of very fine mineral powder and a binder resin. The mat may be either woven or nonwoven and the filler material generally comprises silicon materials. The binder in selected from a group of organic resinous or plastic materials, such as latex. The separator may further comprise a second attached mat of mineral or organic fibers or ribs. Further, the separator may be crimped or embossed if desired.
Claims4
A method for manufacturing a separator for use in an electrolytic storage battery, comprising the steps:
- (a) providing a fibrous mat;
- (b) providing a liquid polymeric binder;
- (c) providing a particulate filler;
- (d) suspending the filler in the liquid binder to form a liquid filler mixture;
- (e) applying the filler mixture to the fibrous mat to form a filled mat;
- (f) providing a rib-forming material;
- (g) applying the rib-forming material to a surface of the mat so as to form at least one rib of the rib-forming material on said surface:
- and
- (h) drying the filled mat.
A method for manufacturing a separator for use in an electrolytic storage battery, comprising the steps:
- providing a fibrous mat;
- providing a liquid impregnant mixture comprising a suspension of a particulate filler material in a curable liquid polymeric binder;
- applying the impregnant mixture to the fibrous mat to form a filled mat;
- providing a liquid rib-forming material;
- applying the rib-forming material to a surface of the filled mat so as to form at least one rib of the rib-forming material adhered to said surface:
- and
- drying the filled mat, thereby producing a ribbed separator.
A method for manufacturing a separator for use in an electrolytic storage battery, comprising the steps:
- (a) providing a fibrous mat;
- (b) providing a liquid polymeric binder;
- (c) providing a particulate filler;
- (d) suspending the filler in the liquid binder to form a liquid filler mixture;
- (e) applying the filler mixture to the fibrous mat to form a filled mat;
- (f) applying at least one rib to a surface of the filled mat, the rib comprising a liquid curable rib-forming material;
- and
- (g) drying the filled mat.
Dependencies are inferred from the claim text.