Synthesis of Layered Conducting Polymer Electrode for Superior Ultracapacitor Performance
Disciplines
Engineering Mechanics | Mechanics of Materials | Polymer and Organic Materials
Abstract (300 words maximum)
Ultracapacitors (UCs) are electrochemical energy storage (EES) devices that provide considerable fast charge-discharge capabilities and large storage capacity. UCs are comprised of two electrodes that house an electrolyte with a porous separator. Electrochemical double layer capacitors (EDLC) that are comprised of carbon-based materials such as activated carbons have an electrostatic charge storage mechanism, also known as non-Faradic storage. The other well-known UCs are psuedocapacitors that are comprised of conducting polymers or metal oxides and have a redox charge storage mechanism, known as Faradic charge transport. Currently, pseudocapacitors are thoroughly researched, however, the role of conducting polymer structure and property as a function of the deposition method currently remains limited. In this work, conducting polymer electrodes, polypyrrole (PPy) are synthesized using electrochemical depositions with controlled cycles and their performance is investigated. The UCs will be tested using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge (GCD) to understand the role between deposition cycles and electrochemical performance. Material characterization such as XRD and FT-IR with surface morphology such as SEM are analyzed to give more insights into this charge kinetics between these variations of cycles.
Academic department under which the project should be listed
SPCEET - Mechanical Engineering
Primary Investigator (PI) Name
Ashish Aphale
Synthesis of Layered Conducting Polymer Electrode for Superior Ultracapacitor Performance
Ultracapacitors (UCs) are electrochemical energy storage (EES) devices that provide considerable fast charge-discharge capabilities and large storage capacity. UCs are comprised of two electrodes that house an electrolyte with a porous separator. Electrochemical double layer capacitors (EDLC) that are comprised of carbon-based materials such as activated carbons have an electrostatic charge storage mechanism, also known as non-Faradic storage. The other well-known UCs are psuedocapacitors that are comprised of conducting polymers or metal oxides and have a redox charge storage mechanism, known as Faradic charge transport. Currently, pseudocapacitors are thoroughly researched, however, the role of conducting polymer structure and property as a function of the deposition method currently remains limited. In this work, conducting polymer electrodes, polypyrrole (PPy) are synthesized using electrochemical depositions with controlled cycles and their performance is investigated. The UCs will be tested using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge (GCD) to understand the role between deposition cycles and electrochemical performance. Material characterization such as XRD and FT-IR with surface morphology such as SEM are analyzed to give more insights into this charge kinetics between these variations of cycles.