ULTRAPURE SYNTHETIC CARBON MATERIALS
First Claim
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1. An ultrapure synthetic carbon material comprising a total impurity content of less than 500 ppm of elements having atomic numbers ranging from 11 to 92 as measured by proton induced x-ray emission.
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Abstract
The present application is generally directed to ultrapure synthetic carbon materials having both high surface area and high porosity, ultrapure polymer gels and devices containing the same. The disclosed ultrapure synthetic carbon materials find utility in any number of devices, for example, in electric double layer capacitance devices and batteries. Methods for making ultrapure synthetic carbon materials and ultrapure polymer gels are also disclosed.
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Citations
60 Claims
- 1. An ultrapure synthetic carbon material comprising a total impurity content of less than 500 ppm of elements having atomic numbers ranging from 11 to 92 as measured by proton induced x-ray emission.
- 22. An ultrapure polymer gel comprising carbon, hydrogen, oxygen and a total impurity content of less than 500 ppm of elements having atomic numbers ranging from 11 to 92 as measured by proton induced x-ray emission.
- 28. A device comprising an ultrapure synthetic carbon material, wherein the ultrapure synthetic carbon material comprises a total impurity content of less than 500 ppm of elements having atomic numbers ranging from 11 to 92 as measured by proton induced x-ray emission.
- 53. An electrode comprising an ultrapure synthetic carbon material and a binder, wherein the ultrapure synthetic carbon material comprises a total impurity content of less than 500 ppm of elements having atomic numbers ranging from 11 to 92 as measured by proton induced x-ray emission.
- 55. A method for making an ultrapure synthetic carbon material, the method comprising reacting one or more polymer precursors under acidic conditions in the presence of a volatile basic catalyst to obtain an ultrapure polymer gel.
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