Media.Player

Ordered Gyroidal Mesoporous Carbon and Uses in Batteries and Other Energy Applications

详细技术说明

This invention introduces a gyroidal mesoporous carbon composition and a silica-free, metal- and halogen-free process that offers exceptional conductivity properties, stability, chemical inertness and low density.

*Abstract

Cornell researchers have developed gyroidal mesoporous carbon matrix via a silica-free, metal- and halogen-free process that offers exceptional conductivity properties, stability, chemical inertness and low density. Due to organic-organic assembly, the pore sizes are large, narrowly dispersed and reproducible. Both double and single gyroidal carbon networks have been synthesized.

 

Technical Merits

• Reduces typical diffusion distance from micronsto nanometers, resulting in a reduction in diffusion time by 106
• The synthesis eliminates undesirable extra stepsfor removal of hazardous chemicals
• High thermal stability to at least 1600ºC
• Large mesoporosity up to 1.77 cm3/g.

  

Potential Applications

Electrodes in fuel cells, batteries, and supercapacitors

 

Advantages

• Increased surface area as compared to linear pores orcurrent standard batteries
• Functions independent of orientation due to gyroidal poreshape
• Batteries could charge in minutes versus hours, for currenttechnology, due to decrease in diffusion distance
• Three-dimensionally connected porosity allows for goodaccessibility and prevents total pore blockage while the continuous carbonmatrix acts as a conductive framework
• Overcomes the large ohmic losses that occur in similarmaterials that contain a polymeric binder

 

*Licensing

Jeff Fearnjcf55@cornell.edu607-254-4502

其他

• Patent issued in the U.S. 9,714,173.
• Werner Jörg G., et al. (2014). Synthesis and Characterizationof Gyroidal Mesoporous Carbons and Carbon Monoliths with Tunable UltralargePore Size. ACS Nano, 8 (1), pp731–743. DOI: 10.1021/nn405392t
• Werner Jörg G., et al. (2014). Gyroidal mesoporousmultifunctional nanocomposites via atomic layer deposition. Nanoscale, 2014,6,8736-8742. DOI: 10.1039/C4NR01948B. 

• “Self-Assembling3D Battery Would Charge in Seconds” Cornell Chronicle, May 16, 2018

国家/地区

美国