Low conductivity carbon foam for a battery
View Patent ↗A carbon foam battery useful for electrical applications is disclosed which includes a relatively low conductivity low density high porosity carbon foam.
1. An electrode plate for a battery comprising:
a non-graphitic carbon foam with an electrical resistivity of at least about 100 μ-ohm-meters and a porosity of at least about 65%;
an electrochemical supplement.
2. The electrode plate of claim 1 further comprising an electrical connection point on the electrode plate.
3. The electrode plate of claim 2 wherein the electrical connection point is formed of carbon foam.
4. The electrode plate of claim 2 wherein the electrical connection point comprises a conductive material.
5. The electrode plate of claim 1 wherein the carbon foam has a density of from about 0.1 g/cc to about 0.4 g/cc.
6. The electrode plate of claim 1 wherein the carbon foam has a density of from about 0.05 g/cc to about 0.4 g/cc and a compressive strength to density ratio of at least 2500 psi/(g/cc).
7. The electrode plate of claim 1 wherein the carbon foam has a porosity of between about 65% and about 95%.
8. The electrode plate of claim 1 wherein at least about 90% of the pore volume of the pores have a diameter of between about 10 and about 150 microns.
9. The electrode plate of claim 8 wherein at least about 95% of the pore volume of the pores have a diameter of between about 25 and about 95 microns.
10. The electrode plate of claim 1 wherein the electrochemical supplement is lead oxide.