Methods for preparing membranes with fluid distribution passages
First Claim
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1. A method of making an ionically conductive membrane sheet, comprising:
- securing two ionically conductive members together from opposing sides of at least one element to form a substantially unobstructed passage adjacent to the at least one element and between the members, wherein the passage provides fluid communication from an edge of the members and along the at least one element.
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Abstract
The present invention provides improved ionically conducting membranes having internal passages therethrough and methods for making the improved membranes. The membranes may be formed from any ionically conducting material. In particular, the membranes may be formed of a single ionically conducting material, such as in a cation-conductive or anion-conductive membrane, or a plurality of ionically conducting material, such as in a bipolar membrane having a cation-selective region, an anion-selective region, and an interfacial region between the anion-selective region and the cation-selective region.
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Citations
25 Claims
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1. A method of making an ionically conductive membrane sheet, comprising:
securing two ionically conductive members together from opposing sides of at least one element to form a substantially unobstructed passage adjacent to the at least one element and between the members, wherein the passage provides fluid communication from an edge of the members and along the at least one element. - View Dependent Claims (2, 3, 4)
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5. A method of making an ionically conductive membrane, comprising:
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providing first and second ionically conductive members; disposing at least one element between the first and second ionically conductive members; and bonding the first and second ionically conductive members to opposing sides of the element to provide a substantially unobstructed passage between the first and second ionically conductive members. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for making an ionically conductive membrane, comprising:
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disposing two or more elements over a surface of a first ionically conductive member; forming a layer of ionically conductive material over the two or more elements and into contact with the surface of the first ionically conductive member to form an ionically conductive surface having protrusions; and bonding a second ionically conductive member to the protrusions leaving passages between protrusions. - View Dependent Claims (21)
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22. A method for making an ionically conductive membrane, comprising:
- directing a laser to cut into an ionically conductive sheet to form a plurality of substantially unobstructed linear passages through the sheet, wherein the passages are substantially parallel to a surface of the sheet.
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23. A method of making an ionically conductive membrane, comprising:
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providing a first ionically conductive member having a deformed surface defining a plurality of protrusions having peaks; and bonding a second ionically conductive member to the peaks of the protrusions to form passages between the peaks. - View Dependent Claims (24, 25)
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Specification