Mesoporous carbons and polymers
First Claim
1. A carbon prepared according to the following steps:
- polymerizing a polymerizable component from a mixture containing said polymerizable component and a surfactant so as to form a polymer, said surfactant and said polymerizable component being present in said mixture in a molar ratio of at least 0.2;
1 and said polymer having an average pore size greater than 4 nm, and a density greater than 0.1 g/cc;
carbonizing the polymer;
activating the carbon; and
wherein said carbon is an activated carbon and has a volumetric capacitance in a non-aqueous electrolyte of at least 20 F/cc, a pore size greater than 2 nm, a density greater than 0.1 g/cc, a surface area between 200 and 2,000 m2/g, and an electrical conductivity greater than 10 Scm−
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Accused Products
Abstract
A polymer is prepared by polymerizing a polymerizable component from a mixture containing the polymerizable component and a surfactant, the surfactant and the polymerizable component being present in the mixture in a molar ratio of at least 0.2:1, having an average pore size greater than 4 nm and a density greater than 0.1 g/cc. The polymerizable component can comprise a resorcinol/formaldehyde system and the mixture can comprise an aqueous solution or the polymerizable component can comprise a divinylbenzene/styrene system and the mixture can comprise an organic solution. Alternatively, the polymerizable component can comprise vinylidene chloride or a vinylidene chloride/divinylbenzene system. The polymer may be monolithic, have a BET surface area of at least about 50 m2/g., include a quantity of at least one metal powder, or have an electrical conductivity greater than 10 Scm−1.
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Citations
6 Claims
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1. A carbon prepared according to the following steps:
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polymerizing a polymerizable component from a mixture containing said polymerizable component and a surfactant so as to form a polymer, said surfactant and said polymerizable component being present in said mixture in a molar ratio of at least 0.2;
1 and said polymer having an average pore size greater than 4 nm, and a density greater than 0.1 g/cc;
carbonizing the polymer;
activating the carbon; and
wherein said carbon is an activated carbon and has a volumetric capacitance in a non-aqueous electrolyte of at least 20 F/cc, a pore size greater than 2 nm, a density greater than 0.1 g/cc, a surface area between 200 and 2,000 m2/g, and an electrical conductivity greater than 10 Scm−
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2. A carbon having a volumetric capacitance in a non-aqueous electrolyte of at least 20 F/cc, a density greater than 0.5 g/cc, a surface area between 200 and 2,000 m2/g, an average pore size greater than 10 nm, conductivity of at least 10 Scm−
- 1, and wherein the carbon is an activated carbon.
- 3. A porous carbon monolith comprising an activated carbon with at least one dimension greater than 2 mm, a surface area between 200 and 2000 m2/g, a density greater than 0.5 g/cc, a pore size greater than 10 nm, and a volumetric capacitance in a non-aqueous electrolyte of at least 20 F/cc.
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5. A carbon comprising a carbonized polymer having a surfactant, the carbon having a volumetric capacitance in a non-aqueous electrolyte of at least 20 F/cc, a density greater than 0.5 g/cc, a surface area between 200 and 2,000 m2/g, and an average pore size greater than 10 nm, wherein the carbon is an activated carbon.
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6. A porous carbon monolith comprising a carbonized polymer having a surfactant, wherein the carbonized polymer is activated, the carbon monolith with at least one dimension greater than 2 nm, a surface area between 200 and 2000 m2/g, a density greater than 0.5 g/cc, a pore size greater than 10 nm, and a volumetric capacitance in a non-aqueous electrolyte of at least 20 F/cc.
Specification