异构结构与氧气空隙的合使得高性能V2O3/Zn3V3O8@C水性离子电池的阴极
Yu-Ying Yang1, Mei Wang1, Qiang Zhang1
1College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|December 22, 2025
概括
用于水性离子电池 (AZIB) 的先进阴极材料是使用V2O3 / Zn3V3O8 @ C异构结构开发的. 这些材料具有高容量和出色的循环稳定性,为更安全,更具成本效益的能源存储铺平了道路.
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:
- 水性离子电池 (AZIB) 正因其安全性,可负担性和环保性而受到欢迎.
- 开发高性能阴极材料对于AZIB的广泛采用至关重要.
研究的目的:
- 为先进的AZIB阴极设计和合成新型V2O3/Zn3V3O8@C异构材料.
- 为了研究异构结构的形成和氧气空缺对电化学性能的影响.
主要方法:
- 使用多氧瓦纳酸盐和多烯合成V2O3/Zn3V3O8@C异构结构.
- 材料结构,组成和形态学的表征.
- 在AZIB中对阴极材料进行电化学测试,包括容量,速率能力和循环稳定性测量.
- 密度函数理论 (DFT) 计算以了解电子属性调制.
主要成果:
- V2O3/Zn3V3O8@C阴极在0.1 A g-1.1下显示出高特异容量419.0 mAh g-1的高特异容量.
- 该材料表现出极好的循环稳定性,在2Ag-1.1的1000个循环后保持了80.6%的容量.
- DFT的计算证实,异构结构结构和氧气空缺增强了电子/离子运输和机械稳定性.
结论:
- 开发的V2O3/Zn3V3O8@C异构结构是高性能AZIB的有希望的阴极材料.
- 异构结构和氧气空缺的协同效应是改善电化学性能的关键.
- 这项工作有助于推进安全和可持续的储能解决方案.
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