Reinforced electrolyte membrane
First Claim
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1. An electrolyte membrane, comprising:
- a first proton conducting polymer reinforced with a nanofiber mat;
wherein the nanofiber mat is made from a nanofiber comprising a fiber material selected from the group consisting of (i) PES, (ii) a PES blend, (iii) PEI, (iv) a PEI blend, (v) PBI, (vi) a PBI blend, (vii) PPO, (viii) a PPO blend, (ix) PEEK, (x) a PEEK blend, (xi) PPES, (xii) a PPES blend, (xiii) PEK, (xiv) a PEK blends, and (xv) combinations thereof, andwherein the nanofiber has an average diameter no greater than 1000 nm; and
wherein the first proton conducting polymer is selected from the group consisting of highly fluorinated ionomer, perfluorinated ionomer, hydrocarbon ionomer, blends and combinations thereof.
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Abstract
An electrolyte membrane having a proton conducting polymer reinforced with a nanofiber mat made from a nanofiber comprising a fiber material selected from polymers and polymer blends; wherein the fiber material has a fiber material proton conductivity; wherein the proton conducting polymer has a proton conducting polymer conductivity; and wherein the fiber material proton conductivity is less than the proton conducting polymer conductivity, and methods of making. In some embodiments, the nanofiber further comprises a proton conducting polymer.
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Citations
19 Claims
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1. An electrolyte membrane, comprising:
a first proton conducting polymer reinforced with a nanofiber mat; wherein the nanofiber mat is made from a nanofiber comprising a fiber material selected from the group consisting of (i) PES, (ii) a PES blend, (iii) PEI, (iv) a PEI blend, (v) PBI, (vi) a PBI blend, (vii) PPO, (viii) a PPO blend, (ix) PEEK, (x) a PEEK blend, (xi) PPES, (xii) a PPES blend, (xiii) PEK, (xiv) a PEK blends, and (xv) combinations thereof, and wherein the nanofiber has an average diameter no greater than 1000 nm; and wherein the first proton conducting polymer is selected from the group consisting of highly fluorinated ionomer, perfluorinated ionomer, hydrocarbon ionomer, blends and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of making an electrolyte membrane, comprising:
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(a) providing a nanofiber mat comprising a nanofiber comprising a fiber material, wherein the fiber material comprises a polymer selected from the group consisting of (i) PES, (ii) PES blends, (iii) PEI, (iv) PEI blends, (v) PBI, (vi) PBI blends, (vii) PPO, (viii) PPO blends, (ix) PEEK, (x) PEEK blends, (xi) PPES, (xii) PPES blends, (xiii) PEK, (xiv) PEK blends, and (xv) combinations thereof, wherein the nanofiber has an average diameter no greater than 1000 nm; and (b) at least partially filling the nanofiber mat with a first proton conducting polymer, wherein the first proton conducting polymer is selected from the group consisting of highly fluorinated ionomer, perfluorinated ionomer, hydrocarbon ionomer, blends and combinations thereof. - View Dependent Claims (19)
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Specification