Electrochemical capacitor with electrode and electrolyte layers having the same polymer and solvent
First Claim
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1. An electrochemical capacitor, comprising:
- a. an electrode layer having electrically conductive carbon, a soluble salt, a non-aqueous aprotic liquid solvent, and a polymer; and
b. an ionically conductive electrolyte layer in contact with the electrode layer, the electrolyte layer comprising an alkali metal salt, the polymer, and the non-aqueous aprotic liquid solvent;
the polymer and the solvent being the same in each of the electrode layer and the electrolyte layer.
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Abstract
An electrode material for an electrochemical capacitor and electrochemical capacitors utilizing the electrode material. The electrode material comprises electrically conductive carbon, a soluble salt, a non-aqueous liquid solvent, and a gel-former. Such a solid electrode material is especially well adapted for use in multi-layer capacitors in which such components can be made very thin, thereby providing a very low resistance for the device and permitting rapid discharge of the capacitor.
63 Citations
11 Claims
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1. An electrochemical capacitor, comprising:
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a. an electrode layer having electrically conductive carbon, a soluble salt, a non-aqueous aprotic liquid solvent, and a polymer; and b. an ionically conductive electrolyte layer in contact with the electrode layer, the electrolyte layer comprising an alkali metal salt, the polymer, and the non-aqueous aprotic liquid solvent; the polymer and the solvent being the same in each of the electrode layer and the electrolyte layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification