Recent developments in V2C MXene as energy storage materials: Promises, challenges and future prospects

The global commitment of reducing greenhouse gases by reducing our dependency on fossil fuels is bound to cause increased usage of energy storage devices in the modern era and eventually their commercialization. In this article, vanadium carbide (V2C) MXenes have demonstrated reliable and efficient promises for energy storage devices with high energy density outcome. The extraordinary energy storage capability of V2C MXenes is often connected with the energy storage mechanisms which is related with its heterostructures nature, a very important property for realizing actual high energy density solid-state supercapacitor. This heterostructure helps in finding new strategies for preparing MXene electrodes for energy storage applications. Thus, the present review discusses recent developments in the area of V2C materials highlighting its synthesis, properties, applications and its heterostructures for rechargeable ion batteries and supercapacitors. A review of the latest findings on mono- and multi-ion-batteries including lithium, sodium, aluminum and heterostructure with their capacitive mechanism has been provided followed by summarizing various performance parameters. The recent development of V2C MXene-based electrodes for ion-batteries have also been elucidated in detail. At the end the current challenges and future prospects has been summarized so that necessary action to remove any bottlenecks can be taken appropriately to bring it to the industrial level.