2020 roadmap on two-dimensional materials for energy storage and conversion

Abstract

Energy storage and conversion have attained significant interest owing to its important applications that reduce COi emission through employing green energy. Sorne promising technologies are included metal air batteries, metal sulfur batteries, met al ion batteries, electrochemical ca pacitors, etc. Here, metal elements are involved with lithium, sodium, and magnesium For these devices, electrode materials are of importance to obtain high performance. Two dimensional (2D) materials are a large kind of layered structured materials with promising future as energy storage materials, which include graphene, black phosporus, MXenes , covalent organic frameworks ( COFs ), 2D oxides, 2D chalcogenides, and ot hers. Great progress has been achieved to go ahead for 2D materials in energy storage and conversion. More researchers will j oin in this res earch field. Under the background, it has motivated us to c ontribute with a roadmap on 'two dimensional materials for energy storage and conversion.

Insights into the Storage Mechanism of Layered VS2 Cathode in Alkali Metal‐Ion Batteries

“…2D layered transition metal dichalcogenides (TMDs), which are fundamentally and technically interesting, have been widely researched in energy storage field. [ 19–21 ] Vanadium disulfide (VS 2 ) is a typical family member of TMDs, which has attracted wide attention due to its layered structure with a large interlayer spacing of 0.57 nm together with excellent electric conductivity and weak van der Waals interlayer interaction. [ 22,23 ] The unique structure and properties of VS 2 make it an ideal host for the insertion/extraction of alkali metal‐ions.…”

A facile control in free‐carbon domain with divinylbenzene for the high‐rate‐performing Sb/SiOCcomposite anode material in sodium‐ion batteries

“…In recent times, there have been numerous studies on lithium-ion batteries (LIBs) for application in a power source for large-capacity storage applications. [1][2][3][4][5][6][7] However, lithium resources are geographically too limited, reducing its availability, and the rising demand is increasing the prices. In addition, since environmental pollution occurs in the lithium mining process, there is a limit to the use of the LIB as an environmentally friendly large-capacity energy storage device.…”

Electrolytes for Lithium‐ and Sodium‐Metal Batteries

“…Rechargeable sodium batteries are considered to be ideal alternatives to LIBs due to the benefit of an abundant supply of Na, low cost, and suitable redox potential of Na metal (E Na + /Na = 2.71 V vs. standard hydrogen electrode). [55][56][57][58] As shown in Figure 7a, metallic sodium has the highest theoretical capacity (1166 mAh g À 1 ) of all possible sodium batteries electrode materials, [59][60][61] thus SMBs have appeared. However, the practical application of SMBs suffers from huge impediments due to the low coulombic efficiency, poor cycling stability, and potential hazards.…”