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开发高速水性离子电池,使用Zn合V₁₀O₂₄·12H₂O阴极

Prahlada Thippeswamy¹, Suman Kalyan Sahoo¹, Hemavathi Nj¹

¹Centre for Nano and Material Sciences, JAIN (Deemed to be University), Kanakapura Road, Bangalore, Karnataka, 562112, India.

Chemistry (Weinheim an der Bergstrasse, Germany)

|September 12, 2025

概括

兴奋剂增强了水性离子电池 (AZIB) 的V10O24.12H2O阴极材料. 这提高了电子导电性和结构稳定性,提高了性能和循环寿命,从而实现了更安全,更具成本效益的能源存储.

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) 为离子电池提供了更安全,更具成本效益的替代方案.
开发可逆Zn2+离子托管的高效阴极材料仍然是AZIBs的一个关键挑战.
作为AZIB阴极的V10O24.12H2O的电化学性能和兴奋剂的影响尚未被探索.

研究的目的:

为了研究兴奋剂对V10O24.12H2O的结构和电化学性质的影响,用于AZIB阴极应用.
通过加入来增强阴极材料的电子导电性和结构稳定性.

主要方法:

通过水热合成V10O24.12H2O和添加V10O24.12H2O (ZVO).
材料形态,含量 (1.3%) 和氧化状态 (4.86) 的表征.
密度函数理论 (DFT) 计算,以评估 Zn 兴奋剂的热力学有利性和电子导电性增强.
对Zn//ZVO和Zn//VO电池进行电化学测试,包括特定容量,速率能力和循环稳定性.

主要成果:

兴奋剂导致捆绑的棒状ZVO形态,改善了电子导电性和结构稳定性.
//ZVO阴极在0.1A/g时提供了359 mAh/g的高特异容量,并在5A/g时保持了121 mAh/g.
该Zn//ZVO电池表现出极好的循环稳定性,在1110个循环中保持90mAh/g.

结论:

兴奋剂是一种可行的策略,可以增强V10O24.12H2O作为AZIBs的阴极材料.
与原始材料相比,优化的ZVO阴极表现出优越的速率能力和长期循环性能.
这项工作为开发高性能和稳定的水性离子电池提供了一个有前途的阴极材料.

关键词:

在 DFT 方面,它是最重要的.特定容量特定容量氧化瓦纳的阴极是氧化瓦纳.兴奋剂是指的兴奋剂.离子电池是离子电池的一种.

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