Systems including ion exchange membranes and methods of making the same
AssigneeBettergy Corp.
InventorsLin-Feng Li, Shixuan Zeng, Caihong Liu, Hye Young Jung
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Abstract
Systems, methods, and membranes involving ion exchange membranes are disclosed. In an embodiment of the present invention, an ultrathin laminar layer made of inorganic nanosheets may be coated on one side or both sides of a polymeric anion exchange membrane (AEM), forming a composite AEM. Oxidation stability measurements may indicate that composite AEM provide superior oxidation resistance to exemplary polymeric AEMs and to commercial polymeric AEMs.
Claims23
A composite ion exchange membrane, comprising:
- a porous first layer comprising a binder, said binder comprising a polymer;
- a second layer comprising a first nanosheet, the second layer being coupled to the first layer, wherein the first nanosheet is an ion-exchangeable two-dimensional nanostructure having an aspect ratio of at least five;
- and
- a third layer comprising a polymeric ion exchange membrane, the third layer being coupled to the second layer.
An electrochemical apparatus, comprising:
- a composite ion exchange membrane, comprising:
- a porous first layer comprising a binder, said binder comprising a polymer;
- a second layer comprising a first nanosheet, the second layer being coupled to the first layer, wherein the first nanosheet
- comprises an ion-exchangeable two-dimensional structure having an aspect ratio of at least five;
- and
- a third layer comprising a polymeric ion exchange membrane, the third layer being coupled to the second layer.
A fuel cell, comprising:
- a composite ion exchange membrane, comprising:
- a porous first layer comprising a binder, said binder comprising a polymer;
- a second layer comprising a first nanosheet, the second layer being coupled to the first layer, wherein the first nanosheet
- comprises an ion-exchangeable two-dimensional structure having an aspect ratio of at least five;
- and
- a third layer comprising a polymeric ion exchange membrane, the third layer being coupled to the second layer.
An electrolyzer, comprising:
- a composite ion exchange membrane, comprising:
- a porous first layer comprising a binder, said binder comprising a polymer;
- a second layer comprising a first nanosheet, the second layer being coupled to the first layer, wherein the first nanosheet
- comprises an ion-exchangeable two-dimensional structure having an aspect ratio of at least five;
- and
- a third layer comprising a polymeric ion exchange membrane, the third layer being coupled to the second layer.
A composite ion exchange membrane, comprising:
- a porous first layer comprising a binder, said binder comprising a polymer;
- a second layer comprising a first nanosheet, the second layer being coupled to the first layer, wherein the first nanosheet is a non-ion-exchangeable nanosheet having a two-dimensional nanostructure with an aspect ratio of at least five;
- and
- a third layer comprising a polymeric ion exchange membrane, the third layer being coupled to the second layer.
A composite ion exchange membrane, comprising:
- a porous first layer comprising a binder, said binder comprising a polymer;
- a second layer comprising a first nanosheet, the second layer being coupled to the first layer, wherein the first nanosheet is a functionalized nanosheet having a two-dimensional nanostructure with an aspect ratio of at least five;
- and
- a third layer comprising a polymeric ion exchange membrane, the third layer being coupled to the second layer.
Dependencies are inferred from the claim text.