Abstract
Typical layered transition‐metal chalcogenide materials, in particular layered molybdenum disulfide (MoS2) nanocomposites, have attracted increasing attention in recent years due to their excellent chemical and physical properties in various research fieldsHere, a general overview of synthetic MoS2 based nanocomposites via different preparation approaches and their applications in energy storage devices (Li‐ion battery, Na‐ion battery, and supercapacitor) is presented. The relationship between morphologies and the electrochemical performances of MoS2‐based nanocomposites in the three typical and promising rechargeable systems is also discussed. Finally, perspectives on major challenges and opportunities faced by MoS2‐based materials to address the practical problems of MoS2‐based materials are presented.
Highlights
Typical layered transition-metal chalcogenide materials, in particular layered energy density, long cycle life, and low molybdenum disulfide (MoS2) nanocomposites, have attracted increasing attention in recent years due to their excellent chemical and physical properties in various research fieldsHere, a general overview of synthetic MoS2 based nanocomposites via different preparation approaches and their self-discharge features.[3,4] Though limitations on the capacities and cycling performances of these rechargeable devices still exist, recent research progress with improved performance for those rechargeapplications in energy storage devices (Li-ion battery, Na-ion battery, and able systems give us many significant supercapacitor) is presented
The abrupt prosperity of investigations on (SIB), and supercapacitors have shown their unique potentials low-dimensional nanostructured (LDN) materials have developed a new brunch in material fields.[14,15,16,17,18]
MoS2 composite materials can be divided to three categories based on the dimension of the matrix: low dimensional (MoS2/carbon spheres, MoS2/ carbon nanotubes/nanofibers), two dimensional, and three dimensional.[61,62,68,69,70]
Summary
With the rapid developments of mobile electric devices and electric vehicles, the demand for high energy batteries with. Relying on its high energy density value (up to 400 Wh Kg−1 in theory) and capacity (755 mAh g−1), lower volume ratio and higher stability (compared with some traditional batteries), the Li ion battery is regarded as the most promising energy storage system to power millions of portable devices and electric vehicles.[40,41,42,43]. It is believed that the additional capacity comes from the nanostructured carbon materials of MoS2 composites, and cycling performance of MoS2 can be enhanced by minimizing particle size and assembling with various carbon-based materials This discharge product of Li2S might cause other redox reactions to generate S as the charge product during recharge, which makes it face the shuttle effect of lithium sulfur batteries and arouse irreversible capacity loss.[58] many previous reports demonstrate highly reversible cyclability with different structural modification strategies to restrain the shuttle effect and volume expansion. MoS2 composite materials can be divided to three categories based on the dimension of the matrix: low dimensional (MoS2/carbon spheres, MoS2/ carbon nanotubes/nanofibers), two dimensional (monolayered MoS2 nanosheets), and three dimensional (the free-standing MoS2/ graphene film, mesoporous carbon/MoS2 composites and other MoS2 materials with special structures).[61,62,68,69,70]
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