초록 ▼

A hybrid electrochemical energy storage device having the attributes of a high power supercapacitor and a lithium ion battery are described. The hybrid electrochemical energy storage device can be a pseudocapacitor with a cathode having a coated activated carbon powder having a coated activated carb

A hybrid electrochemical energy storage device having the attributes of a high power supercapacitor and a lithium ion battery are described. The hybrid electrochemical energy storage device can be a pseudocapacitor with a cathode having a coated activated carbon powder having a coated activated carbon cathode. The coated activated carbon can provide for enhanced energy density and ion conductivity. The activated carbon powder is coated with metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof. More specifically, the activated carbon powder can include two or more active materials, with one of the two or more active materials being carbonaceous particles that comprise from about 50 to about 100 wt % of the composition, and the other of the two or more active materials atomic deposition layers on the carbonaceous particles. The atomic deposited layers can be metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof.

대표청구항 ▼

1. A composition, comprising: two or more active materials, wherein one of the two or more active materials comprises carbonaceous particles, wherein the carbonaceous particles comprise from about 50 to about 100 wt % of the composition, wherein the other of the two or more active materials comprise

1. A composition, comprising: two or more active materials, wherein one of the two or more active materials comprises carbonaceous particles, wherein the carbonaceous particles comprise from about 50 to about 100 wt % of the composition, wherein the other of the two or more active materials comprise atomic deposition layers on the carbonaceous particles, wherein at least one of the other of the two or more active materials comprises a functional material, wherein the functional material comprises an ion conducting or solid electrolyte, and wherein the ion conducting material or a solid electrolyte is selected from the group consisting essentially of an alkali metal aluminum oxide, a lithium niobium oxide, an alkali metal fluoride, an alkali metal sulfide, an alkaline earth metal oxide, an alkaline earth fluoride, a Garnet ion conductor, and a mixture thereof. 2. The composition of claim 1, wherein the carbonaceous particles have an average surface area of about 50 m2/g or more. 3. The composition of claim 1, wherein each of the other of the two or more active materials is selected from the group consisting essentially of metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof. 4. The composition of claim 1, wherein the atomic deposition layers are deposited on the carbonaceous particles consecutively. 5. The composition of claim 1, wherein the alkali metal aluminum oxide has a Li:Al molar ratio selected from the group consisting essentially of 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 3.5:1, 4:1, 4.5:1 and 5:1. 6. The composition of claim 1, wherein the lithium niobium oxide comprises LixNbOy, where x has a value from about 1 to about 5 and y has a value from about 3 to about 5. 7. The composition of claim 1, wherein the functional material is selected from the group consisting essentially of metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof. 8. The composition of claim 7, wherein at least one of the other of the two or more active materials comprise a metal oxide and wherein the metal oxide is selected from the group consisting essentially of Al2O3, BaTiO3, BaSrTiO3, Bi2O3, Co2O3, FeOx, Fe3O4, Ga2O3, HfO2, In2O3, IrO2, MnO2, MoO2, NiO, Ni(OH)2, RuO2, SiO2, SnO2, TiO2, V2O5, Yb2O3, ZnO, ZrO2, and a mixture thereof. 9. The composition of claim 7, wherein the other of two or more active materials comprise atomic deposition layers are one or more of stacked one on top of the other, arranged side by side or a combination of stacked one on top of the other and side by side on the carbonaceous particles. 10. An electrochemical storage device, comprising: a first electrode comprising: a first current collector; anda first composition comprising two or more first active materials, wherein one of the first active materials comprises a first plurality of carbonaceous particles, wherein the first plurality of carbonaceous particles comprises from about 50 to about 100 wt % of the first composition, and wherein the other of the two or more first active materials comprise a first set of atomic deposition layers on the first plurality of the carbonaceous particles;first plurality of conductive carbon particles; anda first polymeric binder, wherein the first polymeric binder, the first plurality of conductive particles and the first composition are adhered to the first current collector;a second electrode comprising: a second current collector;a second composition comprising two or more second active materials, wherein one of the two or more second active materials comprises a second plurality of carbonaceous particles, wherein the second plurality of carbonaceous particles comprise from about 50 to about 100 wt % of the second composition, and wherein the other of the two or more second active materials comprises atomic deposition layers on the second plurality of carbonaceous particles;a second plurality of conductive carbon particles; anda second polymeric binder, wherein the second polymeric binder, the second plurality of the conductive carbon particles, and the composition are adhered to the second current collector; andan electrolyte, wherein the electrolyte is in ionic contact with the first electrode and the second electrode; anda separator positioned between the first and second electrodes and in ionic contact with the electrolyte,wherein at least one of the two or more first active materials and/or the other of the two or more second active materials comprises a functional material, and wherein the functional material comprises an ion conducting material or a solid electrolyte selected from the group consisting essentially of an alkali metal aluminum oxide, an alkali metal fluoride, an alkali metal sulfide, an alkaline earth metal oxide, an alkaline earth fluoride, a Garnet ion conductor, and a mixture thereof. 11. The electrochemical storage device of claim 10, wherein each of the first and second carbonaceous particles have an average surface area of about 50 m2/g or more. 12. The electrochemical storage device of claim 10, wherein the first set of atomic deposition layers are deposited on the first plurality of carbonaceous particles consecutively. 13. The electrochemical storage device of claim 10, wherein the functional material is selected from the group consisting essentially of metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof. 14. The electrochemical storage device of claim 13, wherein at least one of the other of the two or more first active materials comprise a metal oxide and wherein the metal oxide is selected from the group consisting essentially of Al2O3, BaTiO3, BaSrTiO3, Bi2O3, Co2O3, FeOx, Fe3O4, Ga2O3, HfO2, In2O3, IrO2, MnO2, MoO2, NiO, Ni(OH)2, RuO2, SiO2, SnO2, TiO2, V2O5, Yb2O3, ZnO, ZrO2, and a mixture thereof. 15. The electrochemical storage device of claim 10, wherein the electrolyte is selected from the group consisting essentially of an aqueous electrolyte, a non-aqueous electrolyte, an aprotic organic liquid electrolyte, a room temperature ionic liquid electrolyte, a polymeric electrolyte, a polymeric gel electrolyte, a solid-state electrolyte, and a mixture thereof. 16. The electrochemical storage device of claim 15, wherein the electrolyte further comprises an additive selected from the group consisting essentially of vinylene carbonate, fluoroethylene carbonate, and a mixture thereof. 17. The electrochemical storage device of claim 15, wherein the aprotic organic liquid electrolyte comprises an electrolyte salt and an aprotic organic solvent. 18. The electrochemical storage device of claim 17, wherein the electrolyte salt is quaternary salt and wherein the quaternary salt is selected from the group consisting essentially of tetraethyl ammonium tetrafluoroborate, triethylmethylammonium tetrafluoroborate, spirobipyrrolidinium tetrafluoroborate, and a mixture thereof. 19. The electrochemical storage device of claim 17, wherein the aprotic organic solvent is selected from the group consisting essentially of nitrile, carbonate, ester, ether, sulfone, acetal, and a mixture thereof. 20. A composition, comprising: two or more active materials, wherein one of the two or more active materials comprises carbonaceous particles and another of the two or more active materials comprises atomic deposition layers on the carbonaceous particles, wherein carbonaceous particles comprise from about 50 to about 100 wt % of the composition, wherein at least one of the atomic deposition layers comprises a solid electrolyte selected from the group consisting essentially of an alkali metal aluminum oxide, an alkali metal fluoride, an alkali metal sulfide, an alkaline earth metal oxide, an alkaline earth fluoride, a Garnet ion conductor, and a mixture thereof. 21. The composition of claim 20, wherein the at least one of the two or more active materials, other than the carbonaceous particles, is selected from the group consisting essentially of metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof and wherein the carbonaceous particles have an average surface area of about 50 m2/g or more. 22. The composition of claim 20, wherein at least one of the two or more active materials, other than the carbonaceous particles, is selected from the group consisting essentially of metal oxides, metal nitrides, metal sulfides, metal phosphates, polymers, and ion conducting or solid electrolytes, and a mixture thereof. 23. The composition of claim 20, wherein the atomic deposition layers are deposited on the carbonaceous particles consecutively. 24. The composition of claim 20, wherein at least one of the two or more active materials, other than the carbonaceous particles, comprises a metal oxide and wherein the metal oxide is selected from the group consisting essentially of Al2O3, BaTiO3, BaSrTiO3, Bi2O3, Co2O3, FeOx, Fe3O4, Ga2O3, HfO2, In2O3, IrO2, MnO2, MoO2, NiO, Ni(OH)2, RuO2, SiO2, SnO2, TiO2, V2O5, Yb2O3, ZnO, ZrO2, and a mixture thereof. 25. The composition of claim 20, wherein at least one of the two or more active materials, other than the carbonaceous particles, comprises atomic deposition layers are one of stacked one on top of the other, arranged side by side, or a combination of stacked one on top of the other and side by side on the carbonaceous particles. 26. The composition of claim 20, wherein the at least one of the two or more active materials, other than the carbonaceous particles, comprises one or more of a metal oxide, a metal nitride, a metal sulfide, a metal phosphate, and a polymer. 27. An electrochemical energy storage device, comprising: a first electrode comprising: a first current collector; and a first composition comprising two or more first active materials, wherein one of the two or more first active materials comprises a first plurality of carbonaceous particles and another of the two or more first active materials comprises a first set of atomic deposition layers on the first plurality of the carbonaceous particles, wherein the first plurality of carbonaceous particles comprises from about 50 to about 100 wt % of the first composition;first plurality of conductive carbon particles; anda first polymeric binder, wherein the first polymeric binder, the first plurality of conductive particles and the first composition are adhered to the first current collector;a second electrode comprising:a second current collector; a second composition comprising two or more second active materials, wherein one of the two or more second active materials comprises a second plurality of carbonaceous particles and another of the two or more second active materials comprises a second set of atomic deposition layers on the second plurality of the carbonaceous particles, wherein the second plurality of carbonaceous particles comprise from about 50 to about 100 wt % of the second composition;a second plurality of conductive carbon particles; anda second polymeric binder, wherein the second polymeric binder, the second plurality of the conductive carbon particles, and second composition are adhered to the second current collector; andan electrolyte in ionic contact with the first electrode and the second electrode; anda separator positioned between the first and second electrodes and in ionic contact with the electrolyte,wherein at least one of the first and/or second composition further comprises an ion conducting electrolyte, selected from the group consisting essentially of an alkali metal aluminum oxide, an alkali metal fluoride, an alkali metal sulfide, an alkaline earth metal oxide, an alkaline earth fluoride, a Garnet ion conductor, and a mixture thereof. 28. The electrochemical storage device of claim 27, wherein the at least one of the first and/or second composition further comprises one or more of a metal oxide, a metal nitride, a metal sulfide, a metal phosphate, a polymer, and an ion conducting or solid electrolyte, and wherein each of the first and second carbonaceous particles have an average surface area of about 50 m2/g or more. 29. The electrochemical storage device of claim 27, wherein the first set of atomic deposition layers are deposited on the first plurality of carbonaceous particles consecutively. 30. The electrochemical storage device of claim 27, wherein at least one of the two or more first active materials comprise a metal oxide and wherein the metal oxide is selected from the group consisting essentially of Al2O3, BaTiO3, BaSrTiO3, Bi2O3, Co2O3, FeOx, Fe3O4, Ga2O3, HfO2, In2O3, IrO2, MnO2, MoO2, NiO, Ni(OH)2, RuO2, SiO2, SnO2, TiO2, V2O5, Yb2O3, ZnO, ZrO2, and a mixture thereof. 31. The electrochemical storage device of claim 27, wherein the first and second active materials are substantially the same. 32. The electrochemical storage device of claim 27, wherein the first and second active materials are substantially different. 33. The electrochemical storage device of claim 27, wherein the electrolyte is selected from the group consisting essentially of an aqueous electrolyte, a non-aqueous electrolyte, an aprotic organic liquid electrolyte, a room temperature ionic liquid electrolyte, a polymeric electrolyte, a polymeric gel electrolyte, a solid-state electrolyte, and a mixture thereof. 34. The electrochemical storage device of claim 33, wherein the electrolyte further comprises an additive selected from the group consisting essentially of vinylene carbonate, fluoroethylene carbonate, and a mixture thereof. 35. The electrochemical storage device of claim 33, wherein the aprotic organic liquid electrolyte comprises an electrolyte salt and an aprotic organic solvent. 36. The electrochemical storage device of claim 35, wherein the electrolyte salt is quaternary salt and wherein the quaternary salt is selected from the group consisting essentially of tetraethylammonium tetrafluoroborate, triethylmethylammonium tetrafluoroborate, spirobipyrrolidinium tetrafluoroborate, and a mixture thereof. 37. The electrochemical storage device of claim 35, wherein the aprotic organic solvent is selected from the group consisting essentially of nitrile, carbonate, ester, ether, sulfone, acetal, and a mixture thereof.