Ultrahigh-rate supercapacitors with large capacitance based on edge oriented graphene coated carbonized cellulous paper as flexible freestanding electrodes

Technology #d-1398

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Zhaoyang Fan
Associate Professor, Department of Electrical & Computer Engineering, Texas Tech University, Lubbock, Texas
External Link (www.depts.ttu.edu)
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Cameron Smith
Licensing Associate 806-834-6822
Patent Protection

Provisional Patent Application Filed

Aluminum Electrolytic Capacitors (AECs) and conventional supercapacitors are the current industry practice for power conditioning, temporary energy storage, and many other electric functions.  However, AECs and conventional supercapacitors are large and bulky and can only operate under a direct current, which is not conducive to large appliances and processes. 

This invention has established two similar methods for producing alternating current (AC) supercap electrodes, which can be stacked to to create supercapacitors.  These AC supercaps are considerably smaller than AEC supercaps and are capable of operating with AC currents at higher frequencies than conventional capacitors.  The research has identified two methods of of producing these supercaps by utilizing edge oriented multilayer graphene, which allows stacking of multiple sheets—increasing the areal capacitance while maintaining the volumetric capacitance. 

Reference Number: D-1398 

Market Applications:

  • Medical Industry
  • Defense Devices
  • Telecommunications Industry
  • Renewable Energy 

Features, Benefits & Advantages:

  • Miniature Design
  • Smoother Filtering
  • Higher Efficiency
  • Cheap and Quick Manufacturing 

Intellectual Property: A U.S. Provisional Patent application, Serial 62/491,097 was filed on 4/27/17. 

Development Stage: This invention has been reduced to practice and is currently currently in the testing stage of development. 


  • Zhaoyang Fan, Ph. D., Assistant Professor, Department of Electrical & Computer Engineering, Texas Tech University, Lubbock, Texas. 

Keywords: Capacitor, Super Capacitor, Electrode, Graphene, Cellulose Paper