3D Carbon Materials for High-Performance Electric Energy Storage Facilities

Abstract

Alkali-metal-based batteries and supercapacitors with high energy or power performance are two promising candidates to satisfy the need of electric consuming devices in the modern society. However, classical 2D planar materials with few electron-transfer paths and low active area are unable to support such systems. With the merits of high electrochemical/physical/ mechanical properties, the 3D carbon frameworks are achieving booming interest as current collectors and support structures to fabricate the electrodes with ideal properties. Herein, this Spotlight publication focuses on the recent advances in the development of 3D carbon current collectors (CCCs), the performance improvements of the corresponding electrode, and the energy storage devices. In addition, discussions about the relationship between the electrochemical properties and the special structure of the scaffold are also given in this paper. Furthermore, we concluded the disadvantages of the currently proposed 3D CCCs and provide some expectations of future rational design current collectors with better properties.

Three-Dimensional Carbon Networks Decorated with Co Nanocatalysts as Multifunctional Interlayers for a High-Performance Lithium–Sulfur Battery

“…The development of a suitable interlayer with efficient LiPS capture and conversion capability is considered as one of the effective methods to address the above-mentioned problems in LSBs. − Carbon-based composites are state-of-the-art interlayer materials because of their excellent electrical conductivity and high specific surface area. For instance, interlayers prepared by porous carbon fibers (CFs), − reduced graphene oxide (rGO), − and nitrogen-doped carbon − have been reported to inhibit the shuttling of LiPS. However, the weak interaction between polar LiPS and non-polar carbon materials limits the confinement of soluble LiPS.…”