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US 6,605,391 B2Granted
Solid gel membrane
AssigneeReveo, Inc.
InventorsMuguo Chen, Tsepin Tsai, Wayne Yao, Yuen-Ming Chang, Lin-Feng Li, Karen Tom
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AssigneeReveo, Inc.
InventorsMuguo Chen, Tsepin Tsai, Wayne Yao, Yuen-Ming Chang, Lin-Feng Li, Karen Tom
Estimating the term…
A highly conductive polymer based solid gel membrane is disclosed. The membrane is especially well suited for use in such electrochemical devices as, for example, aluminum/air, zinc/air, Zn/MnO2, Ni/Cd and hydrogen fuel cells, as well as in electrochromic devices such as smart windows and flat panel displays. In accordance with the principles of the invention, anion- and cation-conducting membranes are formed. The gel composition of the membrane contains the ionic species within its solution phase such that the species behaves as in a liquid electrolyte, while at the same time, the solid gel composition prevents the solution phase from diffusing into the device. Methods of forming polymer based solid gel membranes of the present invention are also disclosed.
A polymer based solid gel membrane for use in an electrochemical cell, said membrane having as its source of conducting media a basic ionic species contained within an aqueous solution phase of said polymer based gel, wherein said polymer based gel comprises the polymerization product of a polymerization initiator, a monomer selected from the group of water soluble ethylenically unsaturated arnides and acids, and a reinforcing element selected from the group of water soluble and water swellable polymers,
A polymer based solid gel membrane for use in an electrochemical cell, said membrane having a basic ionic species contained within an aqueous solution phase of a polymer based gel backbone, wherein said polymer based gel backbone comprises the polymerization product of a polymerization initiator, a monomer selected from the group of water soluble ethylenically unsaturated arnides and acids, and a reinforcing element selected from the group of water soluble and water swellable polymers,
A polymer based solid gel membrane for use in an electrochemical cell, said membrane having hydroxide ions contained within an aqueous solution phase of said polymer based gel, wherein said polvmer based gel comprises the polymerization product of a polymerization initiator, a monomer selected from the group of water soluble ethylenically unsaturated amides and acids, and a reinforcing element selected from the group of water soluble and water swellable polymers,
Dependencies are inferred from the claim text.