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Updated: Jul 10, 2025

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

在现场形成无形硫酸乙烯阴极,具有自控转换储存机制,用于高性能混合离子电池

Wei Zhang^1,2,3, Yuanhe Sun^1,2, Zhiguo Ren^1,2

¹Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|November 27, 2023

概括

无形 bismuth 硫化物电极表现出特殊的稳定性和水离子电池的高容量. 这种新的转换材料克服了以前的局限性,允许长期和高效的能量储存.

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:

转换型电极具有高容量,但在水性多价值离子系统中周期稳定性较差.
不同类型的离子扩散通道崩和不可逆转的键断裂限制了传统转化材料的应用.

研究的目的:

为水性离子电池开发稳定高性能转换电极材料.
研究一种新型无形硫化物 (a-BS) 用于自控的中度转化Cu2+储存.

主要方法:

在现场形成无形 bismuth 硫化物 (a-BS).
操作同步射线X射线衍射以研究结构进化.
在Cu²⁺ ‖Zn²⁺ 混合离子电池中对a-BS进行电化学测试.

主要成果:

a-BS电极表现出极好的容量 (326.7 mAh g-1 在 1 A g-1) 和速率性能 (194.5 mAh g-1 在 10 A g-1).
在超过8000个周期和每周期0.02 ‰的衰变率下,实现了特殊的长期稳定性.
基于a-BS的混合离子电池在9760W kg-1时提供了238.6Wh kg-1的稳定能量密度.

结论:

无形结构和a-BS的自控温和转换机制防止深度合金和键断裂,确保高稳定性.
这项工作介绍了用于先进的水性能量存储的新型内在高稳定性转换机制.
无形 bismuth 硫化物是下一代高性能水性离子电池的有希望的候选者.

关键词:

无形材料是无形的材料.水性电池的水性电池是什么石硫化物是一种转化反应的转化反应自控转换自控转换自控转换

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