Charge storage device

Abstract

A charge storage device ( 1 ) includes a sealed prismatic housing ( 2 ). Two opposed folded rectangular aluminium electrodes ( 3, 4 ) are disposed within housing ( 2 ) and connected to the electrodes. A porous, electronically insulating separator material, e.g. Solupor™, sheet separator ( 7 ) is disposed intermediate electrodes ( 3, 4 ) for maintaining those electrodes in a fixed spaced apart configuration. An electrolyte (not shown) is also disposed intermediate the electrodes. Collecting means in the form of a scavenging agent is grafted to separator ( 7 ) for sequestering one or more predetermined contaminants from the housing.

1 . A charge storage device including: 
 a housing;    a first sheet electrode disposed within the housing;    a second sheet electrode disposed within the housing adjacent to and opposed with the first sheet electrode;    a separator for enveloping substantially all of the first electrode and for maintaining the electrodes in a spaced apart configuration;    an electrolyte disposed intermediate the electrodes; and    two terminals extending from the respective electrodes and terminating outside the housing for allowing external electrical connection to the electrodes.    
     
     
         2 . A device according to  claim 2  wherein the separator includes two opposed separator sheets which are connected along at least one common edge and the first electrode is disposed between the separator sheets.  
     
     
         3 . A charge storage device including: 
 a housing;    a first folded sheet electrode disposed within the housing and having two opposite faces;    a second sheet electrode disposed within the housing and having two opposed faces, wherein the second sheet electrode is folded about the first sheet electrode such that each opposed face is adjacent to and opposed with a respective opposite face;    a separator for enveloping substantially all of the first electrode and for maintaining the electrodes in a spaced apart configuration;    an electrolyte disposed intermediate the electrodes; and    two terminals extending from the respective electrodes and terminating outside the housing for allowing external electrical connection to the electrodes.    
     
     
         4 . A device according to  claim 3  wherein the first electrode is nested within the second electrode.  
     
     
         5 . A device according to  claim 3  wherein the separator is a sheet that is nested between the first electrode and the second electrode.