相关实验视频

Updated: Jul 7, 2025

Fabrication of VB2/Air Cells for Electrochemical Testing

Fabrication of VB2/Air Cells for Electrochemical Testing

Published on: August 5, 2013

离子兴奋剂和形态定制使离子在瓦纳酸纳米花中存储得更好

Mengcheng Wu¹, Xi Hu¹, Wanying Zheng¹

¹Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China.

Journal of colloid and interface science

|December 22, 2023

概括

在瓦纳材料中的离子注提高了它们对离子电池 (SIB) 的性能. 这种修改提高了特定容量和结构稳定性,为先进的SIB阴极铺平了道路.

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:

层层的瓦尼材料显示出对高容量的能量存储有希望.
挑战包括强的离子相互作用和较差的导电性,阻碍了它们的实际应用.

研究的目的:

为了提高和阴极材料的电化学性能.
为了研究离子兴奋剂和纳米花形态学对材料性能的影响.

主要方法:

用纳米花形态合成离子合的瓦尼材料.
电化学表征包括特定容量和循环稳定性测试.
现场特征化技术,以阐明插入机制.

主要成果:

离子兴奋剂和3D纳米花形态改善了层间间距和电子转移.
该CNVO-2阴极在0.5Ag-1.1时达到411mAhg-1的特定容量.
观察到异常的循环稳定性,在3000个循环后,在10 A g-1下保持90.4%的容量.

结论:

有纳米花形态的离子化瓦纳酸盐为离子电池提供了卓越的电化学性能.
确定了一种新的离子交换和多个离子对合机制.
这项工作为开发高性能SIB阴极材料提供了一个有前途的战略.

关键词:

离子兴奋剂使用离子兴奋剂离子交换离子交换多个离子共接.类似纳米花的形态学.瓦纳酸盐的使用情况

更多相关视频

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Zinc-Sponge Battery Electrodes that Suppress Dendrites

Published on: September 29, 2020

相关概念视频

Valence Bond Theory

Valence Bond Theory

Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...