Electrochemical energy storage materials, devices, and hybrid systems

The electrochemical capacitor (EC) is an important energy storage technology for high power and fast energy delivery. Our research on EC covers electrode modification, the development of polymer electrolytes, as well as cell assembly and characterization.

In terms of electrodes, we are focusing on the chemical modification of porous and nonporous carbon materials to add pseudocapacitance for enhanced energy density and conductivity. As for electrolytes, we are investigating polymer proton conducting electrolytes for EC which can greatly improve volume energy and power density while enabling very thin form factors. Our thin cells are combined with batteries or solar cells to form hybrid energy devices for prolonged fast energy delivery and for self-powered energy devices.

Chemically modified carbon nanotubes (left) vs. as-received CNTs (right).

Electrochemical capacitor with solid polymer electrolyte.

 
Flexible Energy and Electronics Laboratory
Department of Materials Science & Engineering, University of Toronto
   
2021 F.E.E. Lab