Synergistic electrochemical properties of conductive additives with 1D-2D carbon networks

Abstract

The demand for high energy density lithium-ion batteries (LIBs) has increased due to the miniaturization of portable electronic devices. To enhance the energy density of these batteries, advancements in cathode and anode materials are essential, as their performance is currently limited by low electronic conductivity and poor dispersion efficiency. Therefore, this study proposes a composite conductive additive consisting of carbon nanoscrolls (CNSs) and reduced graphene oxide (rGO) to create a graphene-based cathode network. CNSs prevent rGO aggregation, enhancing slurry dispensability, and the combination of 2D rGO and 1D CNSs forms efficient conductive networks. The composite conductive additive has the potential to increase capacity by up to eight times compared to Ketjenblack and offer better cycle stability than rGO alone. This demonstrates the potential of CNSs and rGO composites to improve the electrochemical properties of conductive materials.