Supercapacitor structure and method of making same
First Claim
1. A method of making a supercapacitor structure comprisingproviding a positive electrode member formed as a flexible membrane of polymeric matrix composition having an activated carbon powder uniformly distributed therein bonded to an electrically-conductive current collector element;
- providing a negative electrode member formed as a flexible membrane of polymeric matrix composition having an activated carbon powder uniformly distributed therein bonded to an electrically-conductive current collector element;
providing a separator member formed as a flexible membrane of polymeric matrix composition;
arranging contiguously said separator member between said positive electrode member and said negative electrode member; and
bonding said separator member to said positive electrode member and to said negative electrode member to form a unitary flexible laminate structure.
5 Assignments
0 Petitions
Accused Products
Abstract
Supercapacitor cell electrode and separator elements formulated as membranes of plasticized polymers matrix compositions are laminated with electrically conductive current collector elements to form flexible, unitary supercapacitor structures. The matrix plasticizer component is extracted from the laminate with polymer-inert solvent and replaced with electrolyte solution to activate the supercapacitor. Various arrangements of cell structure elements provide parallel and series cell structures which yield improved specific energy capacity and increased voltage output for utilization demands. The supercapacitor elements may also be laminated with similar polymeric rechargeable battery cell structures to provide hybrid devices capable of delivering both high energy and high power as needed in electronic systems.
91 Citations
3 Claims
-
1. A method of making a supercapacitor structure comprising
providing a positive electrode member formed as a flexible membrane of polymeric matrix composition having an activated carbon powder uniformly distributed therein bonded to an electrically-conductive current collector element; -
providing a negative electrode member formed as a flexible membrane of polymeric matrix composition having an activated carbon powder uniformly distributed therein bonded to an electrically-conductive current collector element;
providing a separator member formed as a flexible membrane of polymeric matrix composition;
arranging contiguously said separator member between said positive electrode member and said negative electrode member; and
bonding said separator member to said positive electrode member and to said negative electrode member to form a unitary flexible laminate structure. - View Dependent Claims (2, 3)
removing substantially all of said plasticizer from said laminate structure with a polymer-inert solvent; and
replacing with an electrolyte solution the plasticizer so removed.
-
Specification