Electrospun carbon-based nanomaterials for next-generation potassium batteries. Issue 17 (1st February 2023)

• Record Type: Journal Article
• Authors: Wu, Junxiong; He, Jiabo; Wang, Manxi; Li, Manxian; Zhao, Jingyue; Li, Zulin; Chen, Hongyang; Li, Xuan; Li, Chuanping; Chen, Xiaochuan; Li, Xiaoyan; Mai, Yiu-Wing; Chen, Yuming
• Is Part Of: Chemical communications. Volume 59:Issue 17(2023)
• Page Start: 2381
• Page End: 2398
• Publication Date: 2023-02-01
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc06692k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Electrospinning is a versatile technique to synthesize one-dimensional nanomaterials for energy-storage applications. This feature article summarizes the recent developments in carbon nanofiber-based electrodes for rechargeable potassium batteries. Abstract : Rechargeable potassium (K) batteries that are of low cost, with high energy densities and long cycle lives have attracted tremendous interest in affordable and large-scale energy storage. However, the large size of the K-ion leads to sluggish reaction kinetics and causes a large volume variation during the ion insertion/extraction processes, thus hindering the utilization of active electrode materials, triggering a serious structural collapse, and deteriorating the cycling performance. Therefore, the exploration of suitable materials/hosts that can reversibly and sustainably accommodate K-ions and host K metals are urgently needed. Electrospun carbon-based materials have been extensively studied as electrode/host materials for rechargeable K batteries owing to their designable structures, tunable composition, hierarchical pores, high conductivity, large surface areas, and good flexibility. Here, we present the recent developments in electrospun CNF-based nanomaterials for various K batteries ( e.g., K-ion batteries, K metal batteries, K–chalcogen batteries), including their fabrication methods, structural modulation, and electrochemical performance. This Feature Article is expected to offer guidelines for the rational design of novel electrospun electrodes for the next-generation K batteries.