Polymeric materials for electrochemical cells and ion separation processes
Polymers of intrinsic microporosity are provided herein. Disclosed polymers of intrinsic microporosity include modified polymers of intrinsic microporosity that include negatively charged sites or crosslinking between monomer units. Systems making use of polymers of intrinsic microporosity and modified polymers of intrinsic microporosity are also described, such as electrochemical cells and ion separation systems. Methods for making and using polymers of intrinsic microporosity and modified polymers of intrinsic microporosity are also disclosed.
1. A battery comprising at least one electrochemical cell, wherein the electrochemical cell comprises:
an anode;
an electrolyte;
a cathode; and
a separator disposed between the anode and cathode, wherein the separator comprises a polymer of intrinsic microporosity.
2. The battery of claim 1 , wherein the electrolyte comprises an organic solvent.
3. The battery of claim 1 , wherein the polymer of intrinsic microporosity comprises a plurality of micropores, wherein the micropores have a cross-sectional dimension between 0.5 nm and 2 nm.
4. The battery of claim 1 , wherein the polymer of intrinsic microporosity comprises a plurality of repeat units, wherein at least one of the repeat units includes one or more electrostatic charges.
5. The battery of claim 1 , wherein the polymer of intrinsic microporosity comprises a plurality of repeat units, wherein at least one of the repeat units includes one or more negative charges.
6. The battery of claim 1 , wherein the polymer of intrinsic microporosity is crosslinked.
7. The battery of claim 1 , wherein the separator further comprises a support membrane in contact with the polymer of intrinsic microporosity.
8. The battery of claim 7 , wherein the support membrane comprises a polymer selected from the group consisting of: polyethylene, polyethylene copolymers, polypropylene, polypropylene copolymers, polyacrylonitrile, polyacrylonitrile copolymers, poly(vinylidene fluoride), poly(tetrafluoroethylene), poly(vinyl chloride), poly(vinylchloride) copolymers, poly(hexafluoropropylene), poly(hexafluoropropylene) copolymers, polyaramide, any combination thereof, and any copolymers thereof.