掺杂铜α-MnO2纳米片阴极的高性能水锌离子电池

IF 0.6 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Gang Li, Hai Liang, Haifang Ren, Linhan Zhou, Mohamed Hashem
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引用次数: 0

摘要

水性锌离子电池(zib)由于其生态友好性、成本效益和显著的安全性而引起了人们的极大兴趣,使其成为下一代储能系统的有力竞争者。在ZIBs研究的大量正极材料中,锰基材料以其显著的特性脱颖而出,包括低毒性和高电压。然而,它们的广泛应用受到循环稳定性差、电导率低和复杂的能量储存机制等挑战的阻碍。在这项研究中,我们提出了一种新的方法来解决这些挑战,即通过简单的水热途径合成掺杂铜的α - mno2纳米片。所制备的正极材料在锌/二氧化锰电池中表现出优异的电化学性能。在0.1 Ag−1的低电流密度下,这些电池显示出令人印象深刻的445 mAh g−1的可逆容量,这表明它们具有可观的能量存储能力。此外,即使受到1ag−1的高电流密度的要求,它们也表现出高达1000次循环的特殊循环寿命,突出了铜掺杂α - mno2纳米线阴极的耐久性增强。这项研究为高性能Zn/ mno2电池的发展铺平了道路,利用锰基正极材料的优势,同时减轻了其固有的局限性。这些发现代表了在开发环境可持续和经济上可行的能源存储解决方案方面迈出的重要一步,为更可持续的能源未来提供了希望。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhanced High-Performance Aqueous Zinc Ion Batteries with Copper-Doped α-MnO2 Nanosheets Cathodes
Aqueous zinc ion batteries (ZIBs) have garnered considerable interest due to their eco-friendly nature, cost-efficiency, and remarkable safety features, making them a compelling contender for next-generation energy storage systems. Within the extensive array of cathode materials investigated for ZIBs, manganese-based materials stand out for their notable attributes, including low toxicity and high voltage. Nevertheless, their widespread application has been impeded by challenges related to poor cycling stability, low electrical conductivity, and intricate energy storage mechanisms. In this study, we present a novel approach to address these challenges by synthesizing copper-doped α -MnO 2 nanosheets through a facile hydrothermal route. The resulting cathode material exhibits remarkable electrochemical properties when integrated into Zn/MnO 2 batteries. At a low current density of 0.1 Ag −1 , these batteries demonstrate an impressive reversible capacity of 445 mAh g −1 , signifying their substantial energy storage capabilities. Furthermore, even when subjected to a demanding high current density of 1 Ag −1 , they exhibit an exceptional cycling life of up to 1000 cycles, highlighting the enhanced durability of the copper-doped α -MnO 2 nanowire cathode. This research paves the way for the development of high-performance Zn/MnO 2 batteries, leveraging the advantages of manganese-based cathode materials while mitigating their inherent limitations. These findings represent a significant step forward in the development of environmentally sustainable and economically viable energy storage solutions, offering hope for a more sustainable energy future.
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来源期刊
Journal of Nanoelectronics and Optoelectronics
Journal of Nanoelectronics and Optoelectronics 工程技术-工程:电子与电气
自引率
16.70%
发文量
48
审稿时长
12.5 months
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