Carbon nanomaterials-constructed electrodes for rechargeable metal-ion batteries

The unique type of bonding of carbon nanomaterials (CNMs) has led to the achievement of its subversive properties, as evidenced by its excellent electronic conductivity, good thermal conductivity, strong mechanical strength, and high surface area. The application of CNMs represented by carbon nanotubes (CNTs) and graphene-constructed electrodes for metal-ion batteries (metal = Li, Na, K, Mg, Al, Zn) has been widely carried out. Studies have shown that functionally modified and composite CNM electrodes usually exhibit stable structure, enhanced electron transfer rate and charge-discharge efficiency, high energy density, and long cycle life. Therefore, the exploitation of excellent CNMs is a pioneering idea to enhance the electrochemical performance of rechargeable metal-ion batteries. In this paper, the research progress of CNTs, graphene, and other members of the CNM family constructed electrodes for metal-ion batteries in recent years is reviewed, with the objective of analyzing the benefits and liabilities of various CNMs, and providing guidance for the development and application of CNMs in rechargeable metal-ion batteries in the future.