Applications for alliform carbon
AssigneesDrexel University, Universite Paul Abatier De Toulouse France
InventorsYury Gogotsi, Vadym Mochalin, John Kenneth McDonough, IV, Patrice Simon, Pierre-Louis Taberna
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Abstract
This invention relates to novel applications for alliform carbon, useful in conductors and energy storage devices, including electrical double layer capacitor devices and articles incorporating such conductors and devices. Said alliform carbon particles are in the range of 2 to about 20 percent by weight, relative to the weight of the entire electrode. Said novel applications include supercapacitors and associated electrode devices, batteries, bandages and wound healing, and thin-film devices, including display devices.
Claims14
An energy storage device comprising:
- a. A first and a second electrode, each electrode comprising a body in electrical communication with a current collector;
- and
- b. an electrolyte;
- wherein at least one body comprises a three-dimensionally porous matrix of alliform carbon particles, the alliform carbon particles comprising at least one concentric graphitic shell having at least 25% of the shell comprising sp2 carbon, the alliform carbon particles being substantially spherical in shape, without carbon nanotube appendages, and substantially physically connected;
- said alliform carbon particles having a substantially unimodal size distribution with a mean particle diameter as measured by TEM photomicrograph image analysis of in a range of from 2 to 30 nanometers and
- said alliform carbon particles having a mean specific surface area in the range of 250 to 750 m2g-1;
- wherein the electrolyte physically contacts and is in electrical communication with said three-dimensionally porous matrix of alliform carbon particles;
- and
- wherein the energy storage device exhibits capacitance when a voltage polarity is applied across the first and second electrodes.
Dependencies are inferred from the claim text.