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在ZnV₂O₄阴极中通过协同的Mo兴奋剂和水性离子电池的形态调节来增强离子动力学

Lei Tan¹, Zhao Li², Lei Wang¹

¹College of New Energy, Xi'an Shiyou University, Xi'an 710065, China.

Journal of colloid and interface science

|December 11, 2025

概括

研究人员开发了一种用于可充电水性离子电池 (AZIB) 的新型阴极材料. 这种Mo⁶⁺-doped ZnV₂O₄阴极增强了储能能力和稳定性,为电网规模应用铺平了道路.

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:

可充电的水性离子电池 (AZIB) 提供了大规模储能的潜力,但面临着诸如低动力学和氧化物阴极中的溶解等挑战.
开发稳定高效的阴极材料对于推进AZIB技术至关重要.

研究的目的:

为AZIBs设计和合成一种具有增强的电化学性能和稳定性的新型阴极材料.
调查Mo6+兴奋剂和交叉互锁纳米板架构对ZnV (ZVO) 性能的影响.

主要方法:

合成Mo⁶⁺-doped ZnV₂O₄ (ZVO-X%Mo) 具有交叉互锁的纳米板架构.
电化学表征包括循环性能和速率能力测试.
密度函数理论 (DFT) 计算以了解离子运输和电子结构.

主要成果:

该ZVO-3%Mo阴极的高容量为636 mAh·g-1在0.1 A·g-1时.
实现了特殊的循环稳定性,在2000个循环后保持80.5%的容量,在5A·g-1时.
6+和纳米板结构改善了离子/电子导电性,并抑制了溶解.

结论:

采用Mo6+化ZVO阴极与交叉交叉的纳米板架构,为高性能AZIBs提供了一种协同战略.
这种方法增强了Zn2+运输,电化学稳定性,并解决了溶解问题.
这些发现证实了这些AZIB阴极在电网规模储能方面的商业可行性.

关键词:

水性离子电池是水性离子电池.DFT计算方法的计算方法莫6+) 的合并.空缺的氧气位基于的阴极是基于的.

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