Advances in Nanofiber Cathodes for Aluminum-Ion Batteries

作     者：Ramasubramanian, Brindha Tipparaju, Sai Krishna Vincent, S. Koperski, Maciej Chellappan, Vijila Ramakrishna, Seeram 

作者机构：Natl Univ Singapore Coll Design & Engn Dept Mech Engn Singapore 117574 Singapore BITS Pilani Dubai Campus Dept Mech Engn Dubai 345055 U Arab Emirates Natl Univ Singapore Inst Funct Intelligent Mat Singapore 117544 Singapore Natl Univ Singapore Coll Design & Engn Dept Mat Sci & Engn Singapore 117575 Singapore 

出 版 物：《ADVANCED FIBER MATERIALS》 (Adv. Fiber Mater.)

年 卷 期：2025年第7卷第2期

页      面：414-442页

核心收录：

基　　金：NUS Resilience and Growth [A-0000065-54-00, A-cy0065-99-99] Ministry of Education (Singapore) through the Research Centre of Excellence program [EDUN C-33-18-279-V12] Ministry of Education, Singapore, under its Academic Research Fund Tier 2 [MOE-T2EP50122-0012] Air Force Office of Scientific Research Office of Naval Research Global [FA8655-21-1-7026] 

主　　题：Carbon-based nanofibers Cathodes Volume expansion Doping Substrate reinforcement 

摘      要：Rechargeable aluminum-ion batteries (AIBs) possess a higher theoretical volumetric capacity than lithium-ion batteries (LIBs) and offer a sustainable, low-cost alternative. However, the performance of AIBs fails to meet commercial standards due to the challenges experienced including volume changes caused by interfacial issues, side reactions of the electrolyte with electrode, and low cyclic stability. These issues are attributed to the inability of existing cathode materials to perform effectively. To address these challenges, 1-dimensional (1D) structures, especially nanofiber (NF) cathodes offer a promising solution due to their higher aspect ratios, specific surface area, flexibility, and quantum scale effects. To date, there has been no comparative analysis of the electrochemical and structural performances of NF based cathodes in AIBs. Thus, this review focuses on the recent developments in various transition metal oxides and chalcogenides of (Mo, V, Mn, Ni, Cu, W, Se, and Co) along with carbon-based NFs as cathodes for AIBs. Challenges were observed in adopting trivalent Al3+ cations as charge carriers and maintaining the structural integrity of the cathode. Several novel approaches have been developed to enhance electrical conductivity, including the incorporation of the metal oxides/chalcogenides with the carbon NF substrates, crystallizing the nanoparticles at high temperatures, and using self-assembly and templating techniques to create multi-dimensional NF films. Other battery components such as separators were replaced with carbonaceous structures in the MnSe based cathodes to increase ion mobility, and Mo current collectors to prevent dendrites. This review includes prospects aimed at improving performance and functionality, based on observations from the discussed work and innovations in AIBs such as compositing, surface functionalization, and defect engineering through ion doping.