초록 ▼

A battery having a current collector constructed of carbon foam. The carbon foam includes a network of pores into which a chemically active material is disposed to create either a positive or negative plate for the battery. The carbon foam resists corrosion and exhibits a large amount of surface are

A battery having a current collector constructed of carbon foam. The carbon foam includes a network of pores into which a chemically active material is disposed to create either a positive or negative plate for the battery. The carbon foam resists corrosion and exhibits a large amount of surface area. The invention includes a method for making the disclosed carbon foam current collector used in the battery.

대표청구항 ▼

1. A battery comprising:a housing;a positive terminal and a negative terminal;at least one cell disposed within the housing and including at least one positive plate and at least one negative plate connected to the positive terminal and negative terminal, respectively; andan acidic electrolytic solu

1. A battery comprising:a housing;a positive terminal and a negative terminal;at least one cell disposed within the housing and including at least one positive plate and at least one negative plate connected to the positive terminal and negative terminal, respectively; andan acidic electrolytic solution filling a volume between the positive and negative plates;wherein the at least one positive plate further includesa carbon foam current collector including a network of pores, anda chemically active material disposed on the carbon foam current collector such that the chemically active material penetrates the network of pores.2. The battery of claim 1, wherein the carbon foam current collector has a total porosity value of at least 60% and an open porosity value of at least 90%.3. The battery of claim 1, wherein the carbon foam current collector has an electrical resistivity value of less than about 1 Ω-cm.4. The battery of claim 1, wherein the carbon foam current collector includes graphite foam and has an electrical resistivity value of between about 100 μΩ-cm and about 2500 μΩ-cm.5. The battery of claim 1, wherein the carbon foam current collector has a density of less than about 0.6 g/cm3.6. The battery of claim 1, wherein the at least one negative plate further includes a carbon foam current collector including a network of pores and a chemically active material disposed on the carbon foam current collector of the negative plate such that the chemically active material penetrates the network of pores.7. The battery of claim 1, wherein the chemically active material includes a paste comprising an oxide of lead.8. The battery of claim 1, wherein the at least one negative plate includes lead.9. The battery of claim 1, wherein the chemically active material includes a paste comprising lead.10. The battery of claim 1, wherein the carbon foam current collector includes graphite foam.11. The battery of claim 1, wherein the carbon foam current collector includes carbonized wood.12. The battery of claim 1, wherein the carbon foam current collector includes graphitized wood.13. A battery comprising:a housing;a positive terminal and a negative terminal;at least one cell disposed within the housing and including at least one positive plate and at least one negative plate connected to the positive terminal and negative terminal, respectively; andan acidic electrolytic solution filling a volume between the positive and negative plates;wherein the at least one negative plate further includes:a carbon foam current collector including a network of pores, anda chemically active material disposed on the carbon foam current collector such that the chemically active material penetrates the network of pores.14. The battery of claim 13, wherein the at least one positive plate includes a lead current collector.15. The battery of claim 13, wherein the carbon foam current collector has a total porosity value of at least 60% and an open porosity value of at least 90%.16. The battery of claim 13, wherein the carbon foam current collector has an electrical resistivity value of less than about 1 Ω-cm.17. The battery of claim 13, wherein the carbon foam current collector has a density of less than about 0.6 g/cm3.18. The battery of claim 13, wherein the chemically active material includes a paste comprising an oxide of lead.19. The battery of claim 13, wherein the chemically active material includes a paste comprising lead.20. The battery of claim 13, wherein the carbon foam current collector includes graphite foam.21. The battery of claim 13, wherein the carbon foam current collector includes carbonized wood.22. The battery of claim 13 wherein the carbon foam current collector includes graphitized wood.23. The battery of claim 13, wherein the carbon foam current collector includes graphite foam and has an electrical resistivity value of between about 100 μΩ-cm and about 2500 μΩ-cm.