Aligned graphene-carbon nanotube porous carbon composite
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United States of America Patent
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Aug 11, 2015
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Aug 11, 2014
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Abstract
Embodiments of the present disclosure are directed to carbon-containing composites which are suitable for use as electrodes in electrochemical systems. The composites are formed from a scaffold of graphene and carbon nanotubes. Graphene flakes form a plurality of generally planar sheets (e.g., extending in an x-y plane) separated in the direction of a composite axis (e.g., along a z-axis) and approximately parallel to one another. The carbon nanotubes extend between the graphene sheets and at least a portion of the carbon nanotubes are aligned in approximately the same direction, at a defined angle with respect to the composite axis. At least a portion of the scaffold is embedded within a porous carbon matrix (e.g., an activated carbon, a polymer derived graphitic carbon, etc.).
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- C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
- B82Y:SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; ....
- H01M:PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- H01G:CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWI....
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