GLYCIDYL-CONTAINING POLYMERS, POLYMER COMPOSITIONS COMPRISING THEM AND THEIR USE IN ELECTROCHEMICAL CELLS
Glycidyl-containing polymers and polymer compositions comprising them are described, as well as their use in electrode materials and/or as coatings for battery components. Also described are electrode materials, electrodes, electrochemical cells and batteries comprising the polymers and their uses.
1 . An electrode material comprising an electrochemically active material and a polymer composition comprising a solvent, a catalyst for a carbon dioxide cycloaddition reaction, and a polymer of Formula I:
wherein:
R 1 and R 2 are each independently H or CH 3 ;
R 3 is selected from H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted CO 2 alkyl; and
n and m are integers, wherein n>0 and m is ≥0.
2 . The electrode material of claim 1 , wherein R 3 is selected from H, a substituted or unsubstituted alkyl, a substituted aryl, and a substituted or unsubstituted CO 2 alkyl.
3 . The electrode material of claim 1 , wherein the solvent is a solid solvent.
4 . The electrode material of claim 1 , wherein the catalyst for the carbon dioxide cycloaddition reaction is an inorganic catalyst for the carbon dioxide cycloaddition reaction or an organic catalyst for the carbon dioxide cycloaddition reaction.
5 . The electrode material of claim 4 , wherein the inorganic catalyst for the carbon dioxide cycloaddition reaction is lithium bromide.
6 . The electrode material of claim 4 , wherein the organic catalyst for the carbon dioxide cycloaddition reaction is selected from the group consisting of quaternary ammonium salts, phosphonium salts, imidazolium salts, and any other known organic base catalysts for the carbon dioxide cycloaddition reaction.
7 . The electrode material of claim 1 , wherein the electrochemically active material is selected from the group consisting of metal oxide particles, lithiated metal oxide particles, metal phosphate particles, and lithiated metal phosphate particles.
8 . The electrode material of claim 1 , further comprising a polymer binder, an electronically conductive material, or a combination thereof.
9 . The electrode material of claim 8 , wherein the polymer binder is selected from the group consisting of a fluorine containing polymer, a water-soluble binder, and an ion-conductive polymer binder.
10 . The electrode material of claim 8 , wherein the polymer binder is a binder additive.
11 . The electrode material of claim 8 , wherein the electronically conductive material is selected from the group consisting of carbon black, acetylene black, graphite, graphene, carbon fibers, carbon nanofibers, carbon nanotubes, and combinations thereof.
12 . An electrode comprising the electrode material as defined in claim 1 , wherein the electrode material is optionally on a current collector.
13 . An electrochemical cell comprising a negative electrode, a positive electrode, and an electrolyte, wherein at least one of the positive electrode and negative electrode is an electrode as defined in claim 12 .
14 . A battery comprising at least one electrochemical cell as defined in claim 13 .
15 . The battery of claim 14 , wherein said battery is a lithium battery, a lithium-air battery, a lithium-sulfur battery, a lithium-ion battery, a sodium battery, or a magnesium battery.
16 . A method for trapping CO 2 generated in a battery or electrochemical cell comprising the electrode material as defined in claim 1 , the method comprising contacting said CO 2 with the polymer of Formula I.
17 . An electrode material comprising an electrochemically active material and a polymer of Formula I(a):
wherein:
n and m are integers, wherein n>0 and m is ≥0.
18 . The electrode material of claim 17 , wherein the electrochemically active material is selected from the group consisting of metal oxide particles, lithiated metal oxide particles, metal phosphate particles, and lithiated metal phosphate particles.
19 . The electrode material of claim 17 , further comprising a polymer binder, an electronically conductive material, or a combination thereof.
20 . The electrode material of claim 19 , wherein the polymer binder is selected from the group consisting of a fluorine containing polymer, a water-soluble binder, and an ion-conductive polymer binder.
21 . The electrode material of claim 19 , wherein the polymer of Formula I(a) is a binder additive.
22 . The electrode material of claim 19 , wherein the electronically conductive material is selected from the group consisting of carbon black, acetylene black, graphite, graphene, carbon fibers, carbon nanofibers, carbon nanotubes, and combinations thereof.
23 . An electrode comprising the electrode material as defined in claim 17 , wherein the electrode material is optionally on a current collector.
24 . An electrochemical cell comprising a negative electrode, a positive electrode, and an electrolyte, wherein at least one of the positive electrode and negative electrode is an electrode as defined in claim 23 .
25 . A battery comprising at least one electrochemical cell as defined in claim 24 .
26 . The battery of claim 25 , wherein said battery is selected from a lithium battery, a lithium-air battery, a lithium-sulfur battery, a lithium-ion battery, a sodium battery, and a magnesium battery.
27 . A method for trapping CO 2 generated in a battery or electrochemical cell comprising the electrode material as defined in claim 17 , the method comprising contacting said CO 2 with the polymer of Formula I(a).