Comparative Study of Graphene-Based Structural Electrodes

Abstract

Graphene based electrodes have gained significant attention in the field of high-performance energy devices. Among different types of graphene-electrode assemblies, our team chose to approach 3D gel morphology due to its high specific surface area, and high porosity. We prepared graphene hydrogels by controlled reduction-led self-assembly of graphene oxide nanosheets in presence of ammonia. Our recent approach considers aramid nanofibers as fillers for mechanical enhancement in 3D graphene oxide hydrogels based electrodes. Several characterization techniques are discussed to measure the mechanical and electrochemical properties of electrodes. These performance metrics can be used to compare the performance of gel based electrodes with other electrodes types. To get an in-depth understanding of how graphene architecture affects the electrode performance and to determine what factors give rise to better performing structural electrode, several literatures are reviewed as a comparative study.