Modified polymer electrodes for energy storage devices and method of making same
AssigneeMotorola, Inc.
InventorsLillian C. Thompson, Changming Li, Ke K. Lian
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Abstract
Method for making high power electrochemical capacitors (28) provides for depositing an electrically polymer (18) and (20) onto a substrate (12) which has been treated so as to form nitride layers (14) and (16) on exposed surfaces thereof. Such electrochemical capacitors provide for high power high energy devices without the short comings of excessive equivalent series resistance nor the expense of noble metal substrates as have been typically been used.
Claims16
An electrode assembly for an electrochemical capacitor device comprising a titanium or stainless steel substrate having a nitride layer formed on a surface thereof, and a layer of polyaniline deposited upon said nitride layer.
An electrochemical cell comprising at least first and second electrodes, and an electrolyte disposed therebetween, at least one of said electrodes comprising a substrate fabricated of a material selected from the group consisting of titanium, stainless steel, aluminum, and nickel, and having a nitride layer formed on a surface thereof, and a layer of an electrically conductive polymer formed upon said nitride layer.
An electrochemical capacitor device comprising first and second electrodes, and an electrolyte disposed therebetween, each of said electrodes comprising a substrate fabricated from materials selected from the group consisting of titanium, stainless steel, nickel, aluminum, vanadium, niobium, tungsten, and combinations thereof, and wherein each said substrate has a nitride layer formed on a surface thereof, and further wherein a layer of an electrically conductive polymer is formed upon each said nitride layer.
Dependencies are inferred from the claim text.