AABC Europe 2013. Tutorial A: EC Capacitor Fundamentals and Technology

Tutorial A:
EC Capacitor Fundamentals and Technology

Presented by:

Rüdiger Kötz, Head of Capacitor Interface Group, Electrochemistry Laboratory, Paul Scherrer Institute

Prof. Kötz received his PhD in Physics from the TU Berlin. After postdoctoral years at the Case Western Reserve University in Cleveland, Ohio and at the Fritz Haber Institut der Max Planck Gesellschaft in Berlin, he joined the ABB Corporate Research Centre in Baden, Switzerland in 1982. Since 1989 he has been leading the capacitor and interface analysis group of the Electrochemistry Laboratory at Paul Scherrer Insitut (PSI) in Switzerland. Throughout his career his research continued to aim at the characterization of the solid electrolyte interphase, the understanding of electro-active materials and the extrapolation of electrochemical processes to application. Dr. Kötz publshed more than 200 papers in peer-reviewed scientific journals and serves as associated editor for Electrochimica Acta.

TUTORIAL OUTLINE

• Principle of Electrochemical Capacitors (ECs)
  • Basics of Double Layer Theory
  • Materials Used in ECs
   
• Electrochemical Characterizations and Tests
  • Cyclic Voltammetry
  • Galvanostatic Charge/discharge
  • Electrochemical Impedance Spectroscopy
   
• Aging of Electrochemical Capacitors
  • Cycle Versus Voltage Hold Tests
  • Effect of Temperature and Voltage
   
• Electrolyte for Electrochemical Capacitors
  • Aqueous-based Electrolytes
  • Non-aqueous Electrolytes
  • Ionic Liquids
   
• Carbon Engineering for ECs
  • Activated Carbons
  • Carbon Specialities (CNTs, CDCs, Templated Carbons)
  • Graphene Type Materials
   
• Hybrid Capacitors
  • Basics of Hybrid Design
  • Serial and Parallel Devices
  • Lithium Capacitor