Solid electrolyte for an electrochemical cell composed of an inorganic metal oxide network encapsulating a liquid electrolyte
AssigneeYardney Technical Products, Inc.
InventorGrant M. Ehrlich
Life of this patent
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Abstract
A solid polymer electrolyte for an electrochemical cell is prepared by a sol-gel process in which an active metal ion conducting liquid electrolyte, e.g. a lithium-ion electrolyte, containing a salt which is stable in the presence of water, e.g. lithium bisperfluoroethanesulfonimide, LiN(SO2C2F5)2, is admixed in aqueous solution with an alkoxide, e.g. silica alkoxide, to form a liquid precursor which is added to the electrochemical cell between the anode and cathode thereof and allowed to solidify in situ to form the solid electroyte.
Claims23
A solid electrolyte for an electrochemical cell comprising:
- a polymer composed of a three-dimensional inorganic metal oxide network encapsulating a liquid electrolyte solution containing a salt which is stable in the presence of water and an organic solvent.
An electrochemical cell comprising an anode, a cathode and a solid electrolyte disposed therebetween, said solid electrolyte comprising a polymer composed of a three-dimensional inorganic metal oxide network encapsulating a liquid electrolyte solution containing a salt which is stable in the presence of water and an organic solvent.
A solid electrolyte for an electrochemical cell comprising:
- a solid polymer composed of a three-dimensional inorganic network composed of an oxide of a metal selected from the group consisting of aluminum, silicon, titanium, vanadium, chromium, molybdenum and tungsten, encapsulating a liquid electrolyte solution containing an organic lithium salt selected from the group consisting of lithium bisperfluoroethanesulfonimide, lithium bis[5-fluoro-2-olato-1-benzenesulfonato (2-)-O,O]borate(1-), lithium bis-(trifluoromethanesulfonyl)imide, lithium tris-(trifluoromethanesulfonyl)-methide, and lithium bis-(trifluoromethylsulfonyl)methane.
A solid electrolyte for an electrochemical cell comprising:
- a three-dimensional inorganic polymer network composed of an oxide of a metal selected from the group consisting of aluminum, silicon, titanium, vanadium, chromium, molybdenum and tungsten, encapsulating a liquid electrolyte solution containing an alkali metal or alkaline earth metal salt which is stable in the presence of water.
A solid electrolyte for an electrochemical cell comprising:
- a three-dimensional inorganic polymer network composed of an oxide of a metal selected from the group consisting of aluminum, silicon, titanium, vanadium, chromium, molybdenum and tungsten, encapsulating a liquid electrolyte solution containing an organic lithium salt selected from the group consisting of lithium bisperfluoroethanesulfonimide, lithium bis[5-fluoro-2-olato-1-benzenesulfonato(2-)-O,O]borate (1-), lithium bis-(trifluoromethanesulfonyl)imide, lithium tris-(trifluoromethanesulfonyl)-methide, and lithium bis-(trifluoromethylsulfonyl)methane.
An electrochemical cell comprising an anode, a cathode and a solid electrolyte disposed therebetween, said anode comprising carbon and said solid electrolyte comprising a polymer composed of a three-dimensional inorganic metal oxide network encapsulating a liquid electrolyte solution containing a salt which is stable in the presence of water and an organic solvent.
An electrochemical cell comprising an anode, a cathode and a solid electrolyte disposed therebetween, said solid electrolyte comprising a polymer composed of a three-dimensional inorganic metal oxide network encapsulating a liquid electrolyte solution containing an organic lithium salt selected from the group consisting of lithium bisperfluoroethanesulfonimide, lithium bis[5-fluoro-2-olato-1-benzenesulfonato (2-)-O,O]borate(1-), lithium bis-(trifluoromethanesulfonyl)imide, lithium tris-(trifluoromethanesulfonyl)-methide, and lithium bis-(trifluoromethylsulfonyl)methane.
Dependencies are inferred from the claim text.