Treated porous carbon black cathode and lithium based, nonaqueous electrolyte cell including said treated cathode
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsMichael Binder, Robert J. Mammone, William L. Wade, Jr.
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Abstract
A porous carbon black cathode is treated by brief exposure to a low press, room temperature gas plasma. The treated cathode is suitable for inclusion in a lithium based, nonaqueous electrolyte cell.
Claims10
A lithium/sulfur dioxide cell including a porous carbon black cathode of about 90 percent carbon black and about 10 percent Teflon.RTM. wherein the cathode is plasma gas treated with a gas plasma selected from the group consisting of O.sub.2, NH.sub.3 and GF.sub.4 /O.sub.2 for about 4 minutes at a pressure of about 20 to 250 mTorr and at room temperature prior to inclusion of the cathode in the cell.
A porous carbon black cathode of about 90 percent carbon black and about 10 percent Teflon.RTM. that has been treated by brief exposure to a low pressure, room temperature gas plasma selected from the group consisting of O.sub.2, NH.sub.2, and CF.sub.4 /O.sub.2 for about 4 minutes at a pressure of about 20 to 250 mTorr and at room temperature said treated cathode being suitable for inclusion in a lithium/sulfur dioxide cell.
Dependencies are inferred from the claim text.