Composite membrane suitable for use in electrochemical devices
AssigneeLynntech, Inc.
InventorsOliver J. Murphy, Alan J. Cisar
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Abstract
The invention relates to novel inorganic-organic composite membranes especially useful as ionically conducting membranes in electrochemical devices. The composites consist of a polymeric matrix, which may or may not be an ionic conductor in its unfilled form, filled with an inorganic material having a high affinity for water, capable of exchanging cations such as protons, and preferably with a high cation mobility, either on its surface or through its bulk.
Claims37
A cation-conducting, essentially gas impermeable composite membrane, comprising a polymeric matrix filled with inorganic oxide cation exchange particles forming a connected network extending from one face of the membrane to another face of the membrane.
A cation-conducting, essentially gas impermeable composite membrane, comprising:
- a polymeric matrix filled with cation-conducting material, wherein the polymeric matrix is formed by a blend of two or more synthetic organic polymers, and wherein the cation-conducting material forms a connected network extending from one face of the polymeric matrix to another face of the polymeric matrix.
A cation-conducting, essentially gas impermeable composite membrane, comprising:
- a synthetic organic polymer matrix filled with cation-conducting material, wherein the cation-conducting material includes an inorganic cation-conducting material and an organic cation-conducting material, and wherein the cation-conducting material forms a connected network extending from one face of the polymeric matrix to another face of the polymeric matrix.
A cation-conducting, essentially gas impermeable composite membrane, comprising a polymeric matrix filled with inorganic oxide cation exchange particles forming a connected network extending from one face of the membrane to another face of the membrane, wherein the polymeric matrix is a blend of at least two synthetic organic polymers.
Dependencies are inferred from the claim text.