Charge storage device, method of making same, method of making an electrically conductive structure for same, mobile electronic device using same, and microelectronic device containing same

Abstract

In one embodiment a charge storage device includes first ( 110 ) and second ( 120 ) electrically conductive structures separated from each other by a separator ( 130 ). At least one of the first and second electrically conductive structures includes a porous structure containing multiple channels ( 111, 121 ). Each one of the channels has an opening ( 112, 122 ) to a surface ( 115, 125 ) of the porous structure. In another embodiment the charge storage device includes multiple nanostructures ( 610 ) and an electrolyte ( 650 ) in physical contact with at least some of the nanostructures. A material ( 615 ) having a dielectric constant of at least 3.9 may be located between the electrolyte and the nanostructures.

1 . A method of making an electrically conductive structure for a charge storage device, the method comprising:
 providing a solution comprising a plurality of nanostructures in a solvent;   applying the solution to a substrate;   annealing the solution and the substrate in order to form the electrically conductive structure.   
     
     
         2 . The method of  claim 1  wherein:
 the solvent is a photoresist material. 
 
     
     
         3 . The method of  claim 2  wherein:
 applying the photoresist material comprises spinning the photoresist material onto the substrate. 
 
     
     
         4 . The method of  claim 3  wherein:
 spinning the photoresist material creates a plurality of fibers at least some of which have a length of at least 500 micrometers. 
 
     
     
         5 . The method of  claim 1  wherein:
 the nanostructures are nanoparticles. 
 
     
     
         6 . The method of  claim 1  wherein:
 the nanostructures are carbon nanotubes. 
 
     
     
         7 . The method of  claim 1  further comprising:
 forming a dielectric material on at least some of the nanostructures. 
 
     
     
         8 . A method of making a charge storage device, the method comprising:
 providing an electrically conductive structure having a first section and a second section; and   placing a separator between the first section and the second section, wherein the separator allows a transfer of ionic charge; and   placing an electrolyte in physical contact with the electrically conductive structure.   
     
     
         9 . The method of  claim 8  further comprising:
 etching a trench between the first section and the second section, wherein:
 placing the separator between the first section and the second section comprises placing the separator in the trench. 
 
 
     
     
         10 . The method of  claim 8  wherein:
 providing the electrically conductive structure comprises:
 providing a solution comprising a plurality of nanostructures in a solvent; 
 applying the solution to a substrate; and 
 annealing the solution and the substrate in order to form the electrically conductive structure.