论文部分内容阅读
Intensive research effort is currently focused on the development of efficient, reliable, and environmentally safe electrochemical energy storage systems due to the ever-increasing global energy storage demand. Li ion bat-tery systems have been used as the primary energy storage device over the last three decades. However, low abun-dance and uneven distribution of lithium and cobalt in the earth crust and the associated cost of these materials, have resulted in a concerted effort to develop beyond lithium electrochemical storage systems. In the case of non-Li ion rechargeable systems, the development of electrode mate-rials is a significant challenge, considering the larger ionic size of the metal-ions and slower kinetics. Two-dimen-sional (2D) materials, such as graphene, transition metal dichalcogenides, MXenes and phosphorene, have gered significant attention recently due to their multi-faceted advantageous properties:large surface areas, high electrical and thermal conductivity, mechanical strength, etc. Con-sequently, the study of 2D materials as negative electrodes is of notable importance as emerging non-Li battery sys-tems continue to generate increasing attention. Among these interesting materials, graphene has already been extensively studied and reviewed, hence this report focuses on 2D materials beyond graphene for emerging non-Li systems. We provide a comparative analysis of 2D material chemistry, structure, and performance parameters as anode materials in rechargeable batteries and supercapacitors.