Conductive Polymer-Based Electrodes and Supercapacitors: Materials, Electrolytes, and Characterizations.

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Increasing electricity demand drives research into novel energy storage materials.
• Conductive polymers (CPs) show promise due to inherent electrochemical activity and conductivity.
• Hybrid materials often yield high capacitance, but novel CP chemistry and 3D structures are critical.

Purpose of the Study:

• To review conductive polymers (polypyrrole, polyaniline, polythiophene) and their composites for energy storage.
• To discuss various electrolytes (aqueous, organic, quasi-solid, self-healing) used with CPs.
• To cover experimental parameters, characterization techniques, and applications of CP-based supercapacitors.

Main Methods:

• Focuses on a comprehensive review of existing literature.
• Discusses material properties, composite formation (with metal oxides and carbon materials), and electrolyte types.
• Details electrochemical characterization techniques, specifically cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS).

Main Results:

• Highlights polypyrrole (PPy), polyaniline (PANi), and polythiophene (PTh) as key CPs for energy storage.
• Explores composites of CPs with metal oxides and carbon nanomaterials (graphene, CNTs).
• Discusses the impact of experimental parameters and electrolytes on material performance.

Conclusions:

• Conductive polymers and their composites are vital for developing next-generation supercapacitors.
• Understanding material properties, structure, and electrochemical behavior is crucial for optimizing performance.
• CP-based supercapacitors offer potential for various applications, with ongoing research focusing on material innovation.