High power energy compression device
AssigneeWestinghouse Electric Corp.
InventorsMichael D. Hilston, Neil C. Otto
Life of this patent
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Abstract
An energy compression device includes at least one bipolar element comprising a positive electrode formed of cobalt disulfide, a negative electrode formed of a lithium alloy, an inert porous separator disposed between and in contact with the electrodes, and a lithium cation salt dispersed through the separator and in contact with, and preferably dispersed through, the electrodes.
Claims43
An energy compression device comprising at least one bipolar element, said bipolar element comprising:
- (a) a negative electrode comprising a lithium alloy;
- (b) a positive electrode comprising an active material consisting essentially of CoS.sub.2 ;
- (c) an inert electrolyte-containing separator consisting essentially of compacted particles of an inert electrically insulating material disposed between and in contact with said positive and negative electrodes;
- (d) an electrolyte comprising at least one lithium cation salt dispersed through said separator and in contact with said positive and negative electrodes;
- and,
- (e) means for collecting current discharged from said bipolar element.
An energy compression device comprising at least one bipolar element, said bipolar element comprising:
- (a) a negative electrode comprising a lithium alloy;
- (b) a positive electrode comprising an active material consisting essentially of CoS.sub.2 ;
- (c) an inert electrolyte-containing separator comprising a mixture of an electrolyte and particles of an inert electrically insulating material and formed by compacting under a pressure of at least about 1500 lb/cm.sup.2 disposed between and in contact with said positive and negative electrodes;
- (d) said electrolyte comprising at least one lithium cation salt dispersed through said separator and in contact with said positive and negative electrodes;
- and,
- (e) means for collecting current discharged from said bipolar element.
An energy compression device comprising a plurality of bipolar elements arranged in a stack within an enclosure, each said bipolar element comprising:
- (a) a negative electrode comprising a lithium alloy;
- (b) a positive electrode comprising an active material consisting essentially of CoS.sub.2 ;
- (c) an inert electrolyte-containing separator consisting essentially of compacted particles of an inert electrically insulating material disposed between and in contact with said positive and negative electrodes;
- (d) an electrolyte comprising at least one lithium cation salt dispersed through said separator and in contact with said positive and negative electrodes;
- with
- (e) means for collecting current discharged from said bipolar elements disposed between and in electrical contact with the positive and negative electrodes of adjacent pairs of bipolar elements.
An energy compression device comprising at least one bipolar element, said bipolar element comprising:
- (a) a negative electrode comprising a lithium alloy;
- (b) a positive electrode comprising an active material consisting essentially of CoS.sub.2 ;
- (c) an inert electrolyte-containing separator comprising a plurality of MgO solid strips spaced apart from one another and disposed between and in contact with said positive and negative electrodes;
- (d) an electrolyte comprising at least one lithium cation salt dispersed through said separator and in contact with said positive and negative electrodes;
- and,
- (e) means for collecting current discharged from said bipolar element.
An energy compression device comprising at least one bipolar element, said bipolar element comprising:
- (a) a negative electrode comprising a porous body of a lithium alloy selected from LiSi, LiAl, LiAlSi and LiAlFe having an electrolyte dispersed therethrough;
- (b) a positive electrode comprising a porous body formed of a major proportion of an active material consisting essentially of CoS.sub.2 with electrolyte dispersed therethrough;
- (c) an inert porous separator consisting essentially of compacted particles of an inert electrically insulating material disposed between and in contact with said positive and negative electrodes with electrolyte dispersed therethrough;
- (d) said electrolyte comprising at least one lithium halide;
- and,
- (e) means for collecting current discharged from said bipolar element.
Dependencies are inferred from the claim text.