초록

A coated electrode is provided for use in energy storage devices. The coated electrode comprises a dry fibrillized polymer that is fibrillized with no processing additives.

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1. A method of making a slurry coated electrode, the method comprising: dry blending dry carbon particles and dry binder to form a dry mixture comprised of the dry carbon particles and the dry binder;liquefying the dry mixture with a solution to form a slurry;applying the slurry to a current collect

1. A method of making a slurry coated electrode, the method comprising: dry blending dry carbon particles and dry binder to form a dry mixture comprised of the dry carbon particles and the dry binder;liquefying the dry mixture with a solution to form a slurry;applying the slurry to a current collector;drying the slurry; and compacting the current collector and slurry. 2. The method of claim 1, wherein the step of blending comprises a step of dry fibrillizing the mixture. 3. The method of claim 2, wherein the dry fibrillizing step comprises milling the mixture. 4. The method of claim 2, wherein the dry fibrillizing step comprises subjecting the mixture to high shear forces. 5. The method of claim 2, wherein the dry fibrillizing step utilizes a high-pressure gas. 6. The product of claim 5, wherein the high-pressure gas comprises a pressure of more than 60 PSI. 7. The product of claim 5, wherein the gas comprises a water content of no more than 20 PPM. 8. The method of claim 1, further comprising the step of treating the current collector prior to applying the slurry to improve adhesion between the current collector and slurry. 9. The method of claim 8, wherein the step of treating the current collector further comprises coating the current collector with a bonding agent prior to applying the slurry. 10. The method of claim 8, wherein the step of treating the current collector further comprises roughening a surface of the current collector prior to applying the slurry. 11. The method of claim 1, wherein the dry binder comprises a fluoropolymer. 12. The method of claim 11, wherein the fluoropolymer particles comprise PTFE. 13. The method of claim 11, wherein the mixture comprises approximately 0% to 25% conductive carbon. 14. The method of claim 11, wherein the mixture comprises approximately 0.5% to 20% fluoropolymer particles. 15. The method of claim 11, wherein the mixture comprises approximately 80% to 95% activated carbon, approximately 0% to 15% conductive carbon, and approximately 3% to 15% fluoropolymer. 16. The method of claim 1, wherein the mixture comprises conductive particles. 17. The method of claim 1, wherein the mixture comprises activated carbon particles. 18. The method of claim 1, wherein the mixture comprises approximately 50% to 99% activated carbon. 19. The method of claim 1, wherein the solution comprises deionized water. 20. The method of claim 1, wherein the current collector comprises aluminum. 21. The method of claim 1, wherein the step of applying the suspension comprises coating the current collector with the slurry using a doctor blade, a slot die, or a direct or reverse gravure process.