TH2001006642A - Gradient-type electrodes with high energy density components and methods for producing the same. - Google Patents

Abstract

The embodiments described here relate generally to equipment, systems and methods. Produces high energy density electrodes with a first electrode material arranged on the current collector and has a first porosity and a second electrode material which are arranged on the The first electrode has a second porosity less than the first porosity in some embodiments of the material used to make the electrode. The second would include mixtures of active materials and electrically conductive materials in some form of liquid electrical solution. The material used to make the first electrode can have a different composition than the material used to make the second electrode. In some embodiments, the first electrode material may include high capacitance materials such as tin, anti-silicon. Mony, aluminum or titanium oxide in some embodiments containing lithium can be deposited. between the material used to make the first electrode and the material used to make the second electrode

Claims (38)

1. An electrical terminal comprising: a current collector; A material used to make a first electrode which is placed on a current collector and has a first porosity and A second electrode material that is positioned on top of a first electrode material and has a second porosity. More than porosity at one The material used to make the second electrode includes a mixture of an active material and a conductive material. in liquid electrolyte solution 2. The electrode of claim 1, wherein the first porosity is less than 5%. 3. The electrode of claim 1, wherein the first porosity is between about 30% and about 60%. 4. The electrode of claim 1, wherein the second porosity is between about 30% and about 60%. 5. The electrode of claim 1, wherein the electrode has a specific capacity of at least 200mAh/g. 6. The electrode of claim 1, wherein the material used to make the first electrode includes a high capacitance material. Choose from tin, silicon, antimony, aluminum and titanium oxide. 7.Electrical terminals comprising: a current collector; A first electrode material is arranged on a current collector and has a first energy density and a second electrode material is arranged on a first electrode material and has a density. of the second energy is less than the first energy capacity, provided that the second electrode material includes a mixture of active material and conductive material in liquid electrolyte solution 8. The electrode of claim 7, wherein the material used to make the first electrode comprises an electrode layer. High capacity, solid type 9. The electrode of claim 8, wherein the solid high capacitance layer includes silicon. 10. The electrode of claim 8, wherein the solid high capacitance layer includes tin. 11. The electrode of claim 7, wherein the electrode has a thickness between approximately 150 and 2,000 micrometers. 12. The electrode of claim 7, wherein the material used to make the first electrode has a thickness between ca. 1 micrometer to approximately 80 micrometer 13. The electrode of claim 7, wherein the material used to make the first electrode is less than approx. 10% of the total thickness of the electrodes 14. The electrode of claim 7, wherein the material used to make the second electrode has a thickness of at least approx. 80% of the total thickness of the electrodes 15. The electrode of claim 7, wherein the material used to make the second electrode is at least approximately 150 micrometers thick. 16. The electrode of claim 7, wherein the first electrode material comprises an electrode layer. High capacity made from composite materials 17. The electrode of claim 16, wherein the high-capacity electrode layer made of the composite material has a material portion. with a high capacity of approximately 10% to approximately 20% by volume 18. The electrode of claim 7, further comprising: a lithium-containing material arranged between the first electrode material and the second electrode material. 19. The electrode of claim 7, wherein the porosity of the electrode varies throughout the thickness of the electrode. 20. An electrical terminal comprising: a current collector; A material used to make a first electrode which is placed on a current collector and has a first surface area and A second electrode material that is placed on top of the first electrode material and has a facet surface area. The second electrode is greater than the surface area of the first, provided that the second electrode material includes a mixture of active materials and conductive materials in liquid electrolyte solution 21. The electrode of claim 20, wherein the material used to make the first electrode comprises an electrode layer. High capacity, solid type 22. The electrode of claim 21, wherein the solid high capacitance layer includes silicon. 23. The electrode of claim 21, wherein the solid high capacitance layer includes tin. 24. The electrode of claim 20, wherein the electrode has a thickness between approximately 150 and 2,000 micrometers. 25. The electrode of claim 20, wherein the material used to make the first electrode has a thickness between ca. 1 micrometer to approximately 80 micrometer 26. The electrode of claim 20, wherein the material used to make the first electrode has a thickness of less than approx. 10% of the total thickness of the electrodes 27. The electrode of claim 20, wherein the material used to make the second electrode has a thickness of at least Approximately 80% of the total thickness of the electrodes 28. The electrodes of claim 20, wherein the total thickness of the electrodes is at least approximately 150 micrometers. 29. The electrode of claim 20, wherein the first electrode material comprises an electrode layer. High capacity made from composite materials 30. The electrode of claim 29, wherein the high-capacity electrode layer made of the composite material has a material portion. with a high capacity of approximately 10% to approximately 20% by volume 31. The electrode of claim 20, further comprising: a lithium-containing material arranged between the first electrode material and the second electrode material. 32. The electrode of claim 20 wherein the theoretical energy density is changed. throughout the thickness of the electrodes 33. The electrode of claim 20, wherein the porosity of the electrode varies throughout the thickness of the electrode. 34. A method for making an electrode comprising: spray-plastering a first electrode material onto a current collector wherein the electrode material One would include high capacity materials and Placement of the second electrode material onto the first electrode material such that the The second electrode includes a mixture of active material and conductive material in a liquid electrolyte solution. 35. The method of claim 34 further comprising: placing a lithium-containing material between the first electrode material and the second electrode material. 36. The method of claim 34 wherein a high capacitance material is selected from tin, silicon, antimony, aluminum and titanium oxide. 37. The method of claim 34 wherein the material used to make the first electrode has a first porosity and the material The second electrode used will have a second porosity where the second porosity is greater than the first porosity. 38. The method of claim 34 wherein the material used to make the first electrode has an energy density. The first and second electrode materials have a second energy density, where The second energy density is less than the first energy density.