| Polyfuel, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100279198 | COMPOSITE POLYMER ELECTROLYTE MEMBRANES - The invention provides composite polymer electrolyte membranes (PEMs) that have reduced methanol crossover and can be used to fabricate catalyst coated membranes (CCMs), membrane electrode assemblies (MEAs), and fuel cells. | 11-04-2010 |
| 20090162724 | ION CONDUCTING COPOLYMERS WITH ELASTOMERIC AND POLYARYLENE SEGMENTS - Ion conducting polymers containing polyarylene ion conducting segments and elastomeric segments covalently linked to each other are used to make polymer electrolyte membranes that can be used in fuel cells such as direct methanol fuel cells. | 06-25-2009 |
| 20080286629 | CHEMICALLY CROSS LINKED IONOMER MEMBRANE - The invention provides cross-linked polymer electrolyte membranes (PEM's), catalyst coated proton exchange membranes (CCM's) and membrane electrode assemblies (MEA's) that are useful in fuel cells and their application in electronic devices, power sources and vehicles. | 11-20-2008 |
| 20080286626 | BIS(ARYL)SULFONIMIDE FUNCTIONALIZED ION CONDUCTING POLYMERS - The invention provides ion conducting copolymers containing pendant bis(aryl)sulfonimide groups that are used to make polymer electrolyte membranes (PEM's), catalyst coated proton exchange membranes (CCM's) and membrane electrode assemblies (MEA's) that are useful in fuel cells and their application in electronic devices, power sources and vehicles. | 11-20-2008 |
| 20080241623 | Passive Recovery of Liquid Water Produced by Fuel Cells - Passive recovery of liquid water from the cathode side of a polymer electrolyte membrane through the design of layers on the cathode side of an MEA and through the design of the PEM, may be used to supply water to support chemical or electrochemical reactions, either internal or external to the fuel cell, to support the humidification or hydration of the anode reactants, or to support the hydration of the polymer electrolyte membrane over its major surface or some combination thereof. Such passive recovery of liquid water can simplify fuel cell power generators through the reduction or elimination of cathode liquid water recovery devices. | 10-02-2008 |
