Preparation of polymeric resins and carbon materials
AssigneeGroup14 Technologies, Inc.
InventorsKatharine Geramita, Benjamin E. Kron, Henry R. Costantino, Aaron M. Feaver, Avery J. Sakshaug, Leah A. Thompkins, Alan Tzu-Yang Chang
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Abstract
The present application is directed to methods for preparation of carbon materials. The carbon materials comprise enhanced electrochemical properties and find utility in any number of electrical devices, for example, as electrode material in ultracapacitors or batteries.
Claims22
A method of fabricating an electrode material comprising a plurality of composite particles, the method comprising:
- a) forming porous carbon particles by:
- i) pyrolyzing a polymer to form carbon particles,
- ii) activating the carbon particles to form activated carbon particles, and
- iii) performing a particle size reduction of the activated carbon particles to form the porous carbon particles;
- and
- b) incorporating an electrochemical modifier into pores of the porous carbon particles to form the composite particles;
- and
- wherein:
- the porous carbon particles comprise less than 500 ppm of all atoms, excluding the electrochemical modifier, having a molecular weight between 11 and 92, as measured by photon induced x-ray emissions;
- and
- the porous carbon particles have no macroporosity.
A method of fabricating a battery anode material comprising a plurality of composite particles, each particle in the plurality of composite particles comprising a porous carbon particle and an electrochemical modifier incorporated into pores of the porous carbon particle, the method comprising:
- a) forming porous carbon particles by:
- i) pyrolyzing a polymer to form carbon particles;
- ii) activating the carbon particles to form activated carbon particles;
- and
- iii) performing a particle size reduction of the activated carbon particles to form porous carbon particles;
- b) incorporating an electrochemical modifier into pores of the porous carbon particles to form the composite particles;
- and
- c) decomposing a gas phase carbon to form a carbon deposit disposed onto a surface of the composite particles,
- wherein:
- the porous carbon particles comprise less than 500 ppm of all atoms, excluding the electrochemical modifier, having a molecular weight between 11 and 92, as measured by photon induced x-ray emissions;
- and
- the porous carbon particles have no macroporosity.
Dependencies are inferred from the claim text.