2D Layered Materials for Fast‐Charging Lithium‐Ion Battery Anodes

Abstract

The development of electric vehicles has received worldwide attention in the background of reducing carbon emissions, wherein lithium‐ion batteries (LIBs) become the primary energy supply systems. However, commercial graphite‐based anodes in LIBs currently confront significant difficulty in enduring ultrahigh power input due to the slow Li+ transport rate and the low intercalation potential. This will, in turn, cause dramatic capacity decay and lithium plating. The 2D layered materials (2DLMs) recently emerge as new fast‐charging anodes and hold huge promise for resolving the problems owing to the synergistic effect of a lower Li+ diffusion barrier, a proper Li+ intercalation potential, and a higher theoretical specific capacity with using them. In this review, the background and fundamentals of fast‐charging for LIBs are first introduced. Then the research progress recently made for 2DLMs used for fast‐charging anodes are elaborated and discussed. Some emerging research directions in this field with a short outlook on future studies are further discussed.

Recent Progress in Interface Engineering of Nanostructures for Photoelectrochemical Energy Harvesting Applications

“…[ 115–117 ] Similar to other metal oxides, WO 3 also encounters insufficient charge separation and serious e − – h + recombination. [ 118–122 ] To overcome this issue, a variety of WO 3 ‐based nanostructures by interface engineering, such as 1D WO 3 NR/0D Cu 2 O NP, [ 123 ] TiO 2 /WO 3 /BiVO 4 brochosomes‐like nanostructures, [ 124 ] ultrathin 2D WO 3 /2D g‐C 3 N 4 , [ 125 ] and 2D WO 3 nanoplate/1D Bi 2 S 3 NR, [ 74 ] have been rationally designed and precisely fabricated to significantly improve the efficient separation of e − – h + pairs and remarkably enhance the PEC water splitting in recent years. [ 126–129 ] For example, Wang et al.…”

Fast-charging anodes for lithium ion batteries: progress and challenges

“…4 Meanwhile, it is well known that the structural degradation and surface failure under fast-charging conditions of the anodes are more significant than those of the cathodes in LIBs. 43 Hence, the development of advanced fast-charging anodes is the main challenge faced by researchers.…”

In Situ Electrophoretic Decorated Cactus-Type Metallic-Phase MoS2 on CaMn2O4 Nanofibers for Binder-Free Next-Generation LIBs

“…9 To overcome the aforementioned problem, van der Waals heterostructure composites with extraordinary characteristics have been fabricated by integrating the metal chalcogenides with metal oxides. 10,11 Metallic-phase molybdenum disulfate (MoS 2 ) is one of the transition metal dichalcogenides that exhibits impressive performance in electrochemical conversion and storage. The unique structure of MoS 2 enables a high degree of surface accessibility for the ions and excellent electronic conductivity.…”