Blend membranes based on sulfonated poly(phenylene oxide) for polymer electrochemical cells
August 13, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3226361 3282875 3528858 Inorganic anisotropic hollow fibers Inorganic anisotropic hollow fibers Inorganic anisotropic hollow fibers Novel polymers having acid functionality Coiled inorganic monolithic hollow fibers Asymmetric gas separation membranes Novel membranes and process for making them InventorsAssigneeApplicationNo. 133228 filed on 08/13/1998US Classes:429/33, Electrolyte composition chemically specified429/309, Two or more polymers (i.e., polymer mixture)429/316Halogen containing polymerExaminersPrimary: Maples, John S.Foreign Patent References
International ClassH01M 008/10AbstractSolid polymer membranes comprised of a high charge density sulfonated poly (phenylene oxide) blended with poly(vinylidene fluoride) in varied ratios have improved membrane characteristics. These membranes are inexpensive and possess very high ionic conductivity, and thus are suitable for solid polymer electrolytes in electrochemical applications, especially for the polymer electrolyte membrane (PEM) fuel cell, the electrolyte double-layer capacitor, and the rechargeable zinc-halide cell. These membranes enhance the performance of these devices.Other References
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