Methods of preparing carbonaceous material
First Claim
1. A method, comprising:
- preparing a mixture containing hydrocarbons and a solvent for the hydrocarbons wherein the boiling point of the hydrocarbons is higher than that of the solvent;
adding an oxidizer to the mixture and reacting the hydrocarbons with the oxidizer to increase concentration of constituents of the mixture that are insoluble in the solvent;
separating the mixture into liquids and solids where the solids are including the constituents that are insoluble in the solvent and such that the solvent is generally separated with the liquid; and
carbonizing the constituents that are insoluble in the solvent to provide carbonaceous material.
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Accused Products
Abstract
Methods and apparatus relate to methods of making carbonaceous material or coating from a precursor. Oxidation of hydrocarbons forming the precursor occurs upon adding an oxidation agent to a mixture of the precursor and a solvent for the precursor. The oxidation of the hydrocarbons yields constituents that are insoluble in the solvent and may not melt. The constituents that are insoluble in the solvent may further coat solid particles, if the solid particles are provided in the mixture. Carbonization of solids recovered by separation from liquids in the mixture increases carbon weight percent of the constituents that are insoluble in the solvent. The methods result in products that provide the carbonaceous material or coating and are suitable for use in electrodes.
82 Citations
26 Claims
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1. A method, comprising:
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preparing a mixture containing hydrocarbons and a solvent for the hydrocarbons wherein the boiling point of the hydrocarbons is higher than that of the solvent; adding an oxidizer to the mixture and reacting the hydrocarbons with the oxidizer to increase concentration of constituents of the mixture that are insoluble in the solvent; separating the mixture into liquids and solids where the solids are including the constituents that are insoluble in the solvent and such that the solvent is generally separated with the liquid; and carbonizing the constituents that are insoluble in the solvent to provide carbonaceous material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 23)
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17. A method, comprising:
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preparing a mixture containing hydrocarbons, a solvent for the hydrocarbons, wherein the boiling point of the hydrocarbons is higher than that of the solvent and solid particles suspended in the mixture; adding an oxidizer to the mixture, wherein the oxidizer reacts with the hydrocarbons to cause a coating to deposit on the solid particles; separating the coated solid particles from liquids in the mixture; and carbonizing the coating into carbonaceous material disposed on the particles. - View Dependent Claims (18, 19, 20, 24)
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21. A method, comprising:
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preparing a mixture containing solvent, solid particles and hydrocarbons, wherein the boiling point of the hydrocarbons is higher than that of the solvent; adding an oxidizer to the mixture, wherein the oxidizer reacts with the hydrocarbons to form products that are insoluble in the solvent and provide a coating of carbonaceous material on the solid particles; separating the coated solid particles from liquids in the mixture; and incorporating the solid particles with the coating into an electrochemical energy cell. - View Dependent Claims (22, 25, 26)
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Specification