Conductive polymer material for solid-state battery
A conductive polymer material is provided that includes an electrically conducting monomer and a zwitterionic sulfate chemically attached to the monomer. The electrically conducting monomer is at least one of acetylene, pyrrole, thiophene, phenylenevinylene, paraphenylene and aniline. The zwitterionic sulfonate includes an imidazolium group or an ammonium group. A solid-state battery is also provided that includes the conductive polymer material in an electrode. The solid-state battery includes an anode, a cathode and a solid electrolyte disposed between the anode and the cathode. At least one of the anode and the cathode includes the conductive polymer material.
1. A conductive polymer material comprising:
a plurality of electrically conducting monomers, each of the plurality of electrically conducting monomers selected from the group consisting of: acetylene, pyrrole, thiophene, phenylenevinylene, paraphenylene and aniline; and
a zwitterionic sulfonate chemically attached to each of the plurality of electrically conducting monomers, the zwitterionic sulfonate including an imidazolium group or an ammonium group.
2. The conductive polymer material according to claim 1 , wherein
the conductive polymer material comprises 10 wt % or less of the zwitterionic sulfonate.
3. The conductive polymer material according to claim 1 , wherein
the conductive polymer material comprises an equimolar amount of the plurality of electrically conducting monomers and the zwitterionic sulfonate.
4. The conductive polymer material according to claim 1 , wherein
the plurality of electrically conducting monomers and the zwitterionic sulfonate chemically attached to each of the plurality of electrically conducting monomers form a conductive polymer, and
the conductive polymer material includes at least an equimolar amount of at least one lithium salt relative to an amount of the conductive polymer.
5. The conductive polymer material according to claim 1 , wherein
each of the electrically conducting monomers is pyrrole.
6. The conductive polymer material according to claim 1 , wherein
the pyrrole is functionalized at a nitrogen position or a β position.
7. The conductive polymer material according to claim 1 , wherein
each of the plurality of electrically conducting monomers is aniline.
8. The conductive polymer material according to claim 1 , wherein
the zwitterionic sulfonate includes a quaternary ammonium group.
9. A battery comprising:
a cathode;
an anode; and
a solid electrolyte between the cathode and the anode,
at least one of the cathode and the anode including a conductive polymer material, the conductive polymer material comprising:
a plurality of electrically conducting monomers, each of the plurality of electrically conducting monomers selected from the group consisting of: acetylene, pyrrole, thiophene, phenylenevinylene, paraphenylene and aniline; and
a zwitterionic sulfonate chemically attached to each of the plurality of electrically conducting monomers, the zwitterionic sulfonate including an imidazolium group or an ammonium group.
10. The battery according to claim 9 , wherein
the conductive polymer material comprises 10 wt % or less of the zwitterionic sulfonate.
11. The battery according to claim 9 , wherein
the conductive polymer material comprises an equimolar amount of the plurality of electrically conducting monomers and the zwitterionic sulfonate.
12. The battery according to claim 9 , wherein
the plurality of electrically conducting monomers and the zwitterionic sulfonate chemically attached to each of the plurality of electrically conducting monomers form a conductive polymer, and
the conductive polymer material includes at least an equimolar amount of at least one lithium salt relative to an amount of the conductive polymer.
13. The battery according to claim 9 , wherein
each of the plurality of electrically conducting monomers is pyrrole.
14. The battery according to claim 9 , wherein
the pyrrole is functionalized at a nitrogen position or a β position.
15. The battery according to claim 9 , wherein
each of the plurality of electrically conducting monomers is aniline.
16. The battery according to claim 9 , wherein
the zwitterionic sulfonate includes a quaternary ammonium group.
17. The battery according to claim 9 , wherein
the at least one of the cathode and the anode comprises 20 wt % or less of the conductive polymer material.
18. The battery according to claim 9 , wherein
the at least one of the cathode and the anode comprises 1 wt % to 20 wt % of the conductive polymer material.
19. The battery according to claim 9 , wherein
the anode comprises lithium metal or alloys of lithium.
20. The battery according to claim 9 , wherein
the cathode comprises sulfur.
21. The battery according to claim 9 , wherein
the cathode comprises at least one of nickel, cobalt and manganese.
22. The battery according to claim 9 , wherein
the at least one of the cathode and the anode includes the conductive polymer material and an electrode active material.
23. The conductive polymer material according to claim 4 , wherein each of the plurality of electrically conducting monomers and the zwitterionic sulfonate chemically attached thereto is represented by the following formula:
where R is an alkyl group containing 1 to 5 carbon atoms, and n ranges from 1 to 5.
24. The battery according to claim 11 , wherein each of the plurality of electrically conducting monomers and the zwitterionic sulfonate chemically attached thereto is represented by the following formula:
where R is an alkyl group containing 1 to 5 carbon atoms, and n ranges from 1 to 5.