It’s Not Over until the Big Ion Dances: Potassium Gets Its Groove On
It’s Not Over until the Big Ion Dances: Potassium Gets Its Groove On
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DOI：
10.1016/j.joule.2018.11.003
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发表时间：
2018-11
期刊：
影响因子：
39.8
通讯作者：
Justin L. Andrews;Sarbajit Banerjee
中科院分区：
文献类型：
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作者：
Justin L. Andrews;Sarbajit Banerjee
在最近发表在《化学》杂志上的一篇论文中，Zhu，Zhang，Yan及其同事解开了双层V2 O 5结构中钾离子的扩散途径，并展示了具有前所未有的性能特征的钾离子电池，包括平均电压3.2 V，初始容量131 mAh·g−1，以及即使在高速率下也能快速充电/放电。这项研究作为一个显着的说明，挖掘亚稳相空间的实用性，以确定结构的图案，允许减轻扩散的挑战，更大的阳离子。
In a recently published paper inChem, Zhu, Zhang, Yan, and colleagues unlock diffusion pathways for potassium ions within a double-layered V2O5structure and demonstrate a potassium-ion battery with unprecedented performance characteristics including an average voltage of 3.2 V, an initial capacity of 131 mAh·g−1, and rapid charge/discharge capabilities even at high rates. The study serves as a remarkable illustration of the utility of mining metastable phase space to identify structural motifs that allow for mitigation of the diffusion challenges plaguing larger cations.