Separator for alkaline cells
AssigneeEnergizer Brands, LLC
InventorsM. Edgar Armacanqui, Andrew J. Roszkowski, Donald Raymond Crowe, Enqing Zhu, John L. Hadley, Matthew Hennek, Tim F. Turba
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Abstract
An alkaline electrochemical cell includes a cathode; a gelled anode having an anode active material and an electrolyte; and a separator disposed between the cathode and the anode; wherein the separator includes a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm2/s to about 3.8 cc/cm2/s at 125 Pa.
Claims20
An alkaline electrochemical cell comprising:
- a cathode;
- a gelled anode comprising an anode active material and an electrolyte;
- and
- a separator disposed between the cathode and the anode;
- wherein the separator comprises a non-conductive, porous material and has a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm2/s to about 3.8 cc/cm2/s at 125 Pa.
An alkaline electrochemical cell comprising:
- a cathode;
- a gelled anode comprising an anode active material and an electrolyte;
- and
- a separator disposed between the cathode and the anode;
- wherein the separator comprises a fibrous, alkaline resistant material and has a mean pore size between 0.5 micron to 3.8 microns, a maximum pore size of less than 25 microns, and an air permeability of about 0.5 cc/cm2/s to about 3.8 cc/cm2/s at 125 Pa.
An alkaline electrochemical cell comprising:
- a cathode;
- a gelled anode comprising an anode active material and an electrolyte;
- and
- a separator disposed between the cathode and the anode;
- wherein the separator comprises a non-conductive, porous material and has a mean pore size between about 0.5 micron to about 3.8 microns, a maximum pore size of less than 25 microns, and an air permeability of from about 500 cc/cm2/min to about 3000 cc/cm2/min, at 1 KPa.
Dependencies are inferred from the claim text.