Conducting coatings for anodes, methods of making and using same, and uses thereof
Conducting coatings disposed on a metal member. The conducting coatings may have a desired texture and provide homoepitaxial or heteroepitaxial coating of an electrodeposited layer. A conducting coating may be formed by applying a shear force during deposition of the conducting coating. The conducting coatings may be used in anodes of various electrochemical devices. A conducting coating, which may be part of an electrochemical device, may have an electrochemically deposited layer disposed on at least a portion of a surface of the conducting coating. The electrochemically deposited layer may be reversibly electrochemically deposited.
1. An anode comprising:
a metal member;
a conducting coating disposed on at least a portion of the metal member;
an electrodeposited layer disposed on at least a portion of the conducting coating; and
a coherent interface having a lattice misfit of less than 15% between the conducting coating and the electrodeposited layer,
wherein the conducting coating epitaxially templates deposition of the electrodeposited layer, and
the conducting coating is chemically inert and/or electrochemically stable under electrochemical cycling conditions.
2. The anode of claim 1 , wherein the conducting coating comprises an organic material, an inorganic material, a metal, a metal alloy, or intermetallic compound.
3. The anode of claim 2 , wherein the conducting coating is graphene.
4. The anode of claim 2 , wherein the conducting coating is a metal chosen from gold, silver, zirconium, titanium, iron, chromium, and combinations thereof or a metal alloy comprising a combination of gold, silver, zirconium, titanium, iron, and chromium.
5. The anode of claim 1 , wherein the conducting coating is crystalline.
6. The anode of claim 1 , wherein at least a portion or all of an exterior surface of the conducting coating comprises crystal facets chosen from a (001) plane in hexagonal closest packed structure, a (111) plane in face centered cubic structure, and a (110) plane in body centered cubic structure.
7. The anode of claim 6 , wherein 80%-100% of the crystal facets of the conducting coating are a (001) plane in hexagonal closest packed structure, a (111) plane in face centered cubic structure, or a (110) plane in body centered cubic structure.
8. The anode of claim 1 , wherein the thickness of the conducting coating is a single layer to 100 μm.
9. The anode of claim 1 , wherein the conducting coating has a conductivity of 10 1 to 10 9 S/m.
10. The anode of claim 1 , wherein the metal member is an active metal member or an inactive metal member.
11. A device comprising one or more anode(s) of claim 1 .
12. The device of claim 11 , wherein the device is an electrochemical device.
13. The device of claim 11 , wherein device is configured so that the conducting metal ions reversibly electrodeposit on at least a portion or all of the surface of the conducting coating in contact with the electrolyte forming uniform metal layers.
14. The device of claim 13 , wherein the metal layers comprising one or more crystalline domain(s) or the metal layers are crystalline metal layers.
15. The device of claim 11 , wherein the electrochemical device is a battery, a supercapacitor, a fuel cell, an electrolyzer, or an electrolytic cell.
16. The device of claim 15 , wherein the battery is a metal ion-conducting battery.
17. The device of claim 16 , wherein the ion-conducting battery is a lithium-ion conducting battery, a potassium-ion conducting battery, a sodium-ion conducting battery, a calcium-ion conducting battery, a magnesium-ion conducting battery, a zinc-ion conducting battery, an aluminum-ion conducting battery, or an iron-ion conducting battery.
18. The device of claim 15 , wherein the battery further comprises one or more cathode(s) and/or one or more electrolyte(s) and/or, optionally, one or more current collector(s) and/or, optionally, one or more additional structural component(s).
19. The device of claim 18 , wherein the electrolyte is a liquid electrolyte or solid-state electrolyte.
20. The device of claim 19 , wherein the liquid electrolyte is an aqueous electrolyte or a non-aqueous electrolyte.
21. The device of claim 18 , wherein the one or more additional structural component(s) is/are chosen from bipolar plates, external packaging, and electrical contacts/leads to connect wires, and combinations thereof.
22. The device of claim 15 , wherein the battery comprises a plurality of cells, each cell comprising a cathode, an anode, and optionally, an electrolyte, a current collector, or a combination thereof.
23. The device of claim 22 , wherein the battery comprises 1 to 500 cells.
24. The device of claim 15 , wherein battery exhibits one or more of the following:
the battery does not exhibit detectible dendritic growth and/or orphaning, and/or
a plating and/or stripping Coulombic efficiency of 95% or greater and/or,
a plating and/or stripping Coulombic efficiency of 95% or greater for 10,000 cycles or greater and/or at rate of 40 mA/cm 2 or greater.
25. The anode of claim 1 , wherein the conducting coating comprises a horizontally aligned close-packed basal plane with respect to the metal member surface.
26. The anode of claim 1 , wherein the conducting coating comprises a plurality of exposed crystal facets having desired texture and alignment such that the reduced form of metal-ions of a metal ion-conducting electrochemical device having a lattice misfit of less than 15% between the exposed crystal facets and the reduced form of metal-ions.
27. The anode of claim 1 , wherein the conducting coating comprises a desired texture and alignment formed by applying a shear force during deposition of the conducting coating.