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碳布上的SnSe纳米板阵列作为离子电池的高容量阳极

Wenlong Yang¹, Yuncai Chen², Xingxing Yin³

¹School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, P. R. China.

ACS applied materials & interfaces

|September 1, 2023

概括

无粘合剂锡化物 (SnSe) 纳米板阵列为离子电池 (SIB) 提供了增强的性能. 这种新的电极设计提高了容量和离子扩散,推进了储能解决方案.

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:

高性能离子电池 (SIB) 对于储能至关重要.
无粘合剂电极为提高SIB性能提供了机会.
锡化 (SnSe) 是一个有前途的阳极材料,因为它具有很高的理论容量.

研究的目的:

为SIBs开发一种无粘合剂的SnSe纳米板阵列 (SnSe NS) 电极.
与SnSe块状颗粒 (SnSe BP) 相比,评估SnSe NS电极的电化学性能.
为了研究SnSe NS电极的结构和运动性质.

主要方法:

在真空中进行热蒸发,在碳布上合成SnSe NS.
静电充放电循环,以评估容量和稳定性.
电化学阻抗光谱学和操作X射线衍射以研究动力学和相位可逆性.

主要成果:

无粘合剂的SnSe NS电极提供了713mAhg-1的高初始电荷容量.
它在50个循环后保持了410mA hg-1的容量,超过了SnSe BP.
SnSe NS表现出更快的动力学和更好的相位可逆性,在循环后保留了它的结构.

结论:

无粘合剂的SnSe NS电极对于高性能SIB是可行的.
纳米板阵列结构增强了离子扩散和电化学稳定性.
这项工作为制造用于储能的先进阳极材料提供了一种可行的方法.

关键词:

在SnSe纳米板阵列中.阳极材料是一种阳极材料.没有粘合剂的无粘合剂.离子电池离子电池在真空中热蒸发.

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