2D Layered Nanomaterials as Fillers in Polymer Composite Electrolytes for Lithium Batteries

摘要

Polymer composite electrolytes (PCEs), i.e., materials combining the disciplinesof polymer chemistry, inorganic chemistry, and electrochemistry, havereceived tremendous attention within academia and industry for lithiumbasedbattery applications. While PCEs often comprise 3D micro- or nanoparticles,this review thoroughly summarizes the prospects of 2D layeredinorganic, organic, and hybrid nanomaterials as active (ion conductive) orpassive (nonion conductive) fillers in PCEs. The synthetic inorganic nanofillerscovered here include graphene oxide, boron nitride, transition metalchalcogenides, phosphorene, and Mxenes. Furthermore, the use of naturallyoccurring 2D layered clay minerals, such as layered double hydroxides andsilicates, in PCEs is also thoroughly detailed considering their impact onbattery cell performance. Despite the dominance of 2D layered inorganicmaterials, their organic and hybrid counterparts, such as 2D covalent organicframeworks and 2D metal–organic frameworks are also identified as tuneablenanofillers for use in PCE. Hence, this review gives an overview of theplethora of options available for the selective development of both the 2Dlayered nanofillers and resulting PCEs, which can revolutionize the field ofpolymer-based solid-state electrolytes and their implementation in lithiumand post-lithium batteries.