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Updated: Jun 26, 2025

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Published on: August 5, 2013

多金属离子共同调节的氧化瓦纳阴极向长寿命的水性离子电池

Ming-Yang Ma¹, Yan Liu¹, Jia-Lin Yang¹

¹MOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024 PR China.

Journal of colloid and interface science

|May 18, 2024

概括

将 (K+), (Mg2+) 和 (Al3+) 等多种金属离子引入V2O5中,提高了其作为离子电池的阴极的稳定性和性能.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

层状氧化物是水性离子电池的有希望的阴极材料.
层间工程对于改善结构稳定性和离子传输至关重要.
了解多个交离子的协同效应对于优化性能至关重要.

研究的目的:

研究V2O5.5中结金属离子 (K+),土金属离子 (Mg2+) 和三价金属离子 (Al3+) 的协同作用.
为了提高基于V2O5的阴极的结构稳定性和Zn2+运输动力学.
为水性离子电池开发高性能阴极材料.

主要方法:

通过介层介层工程合成三金属离子介层V2O5.
电化学表征包括特定容量,速率能力和循环稳定性测试.
现场和动力特征,以阐明电荷转移和离子间机制.

主要成果:

最佳的三金属离子间接V2O5阴极在0.5A g-1.0下达到382.4 mAh g-1的高特异容量.
证明了卓越的长期循环稳定性,在2000个循环后在10A g-1下保持86%的容量.
K+,Mg2+和Al3+离子的协同效应促进了快速的电荷转移和可逆的Zn2+互.

结论:

多离子工程是设计稳定和高性能分层阴极材料的有效策略.
间隔V2O5阴极显示了先进水性离子电池应用的巨大潜力.
这种方法为优化层间结构提供了洞察力,以提高离子电池性能.

关键词:

水性离子电池的水性离子电池层间的间距是层间的间距.多离子工程战略多离子工程战略有协同效应的效应.氧化瓦纳的氧化物

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