Advances in Nanofiber Cathodes for Aluminum-Ion Batteries

IF 17.2 1区 工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Brindha Ramasubramanian, Sai Krishna Tipparaju, S. Vincent, Maciej Koperski, Vijila Chellappan, Seeram Ramakrishna
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Abstract

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.

Graphical Abstract

铝离子电池用纳米纤维阴极研究进展
可充电铝离子电池(aib)具有比锂离子电池(lib)更高的理论容量,是一种可持续、低成本的替代方案。然而,由于界面问题引起的体积变化、电解质与电极的副反应以及低循环稳定性等挑战,AIBs的性能未能达到商业标准。这些问题是由于现有的阴极材料不能有效地发挥作用。为了应对这些挑战,一维(1D)结构,特别是纳米纤维(NF)阴极,由于其更高的纵横比、比表面积、灵活性和量子尺度效应,提供了一个很有前途的解决方案。迄今为止,还没有对aib中NF基阴极的电化学和结构性能进行比较分析。因此,本文综述了各种过渡金属氧化物和硫族化合物(Mo, V, Mn, Ni, Cu, W, Se和Co)以及碳基NFs作为aib阴极的最新进展。在采用三价Al3+阳离子作为载流子和保持阴极结构完整性方面存在挑战。目前已经开发了几种提高导电性的新方法,包括将金属氧化物/硫族化合物与碳基纳滤膜结合,在高温下使纳米颗粒结晶,以及使用自组装和模板技术来创建多维纳滤膜。其他电池组件,如分离器,被MnSe基阴极中的碳质结构取代,以提高离子迁移率,以及Mo集流器,以防止枝晶的形成。本文综述了AIBs在性能和功能方面的发展前景,并对AIBs的合成、表面功能化和离子掺杂缺陷工程等方面的创新进行了评述。图形抽象
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来源期刊
CiteScore
18.70
自引率
11.20%
发文量
109
期刊介绍: Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.
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