Abstract In the result of increasing energy demand, rechargeable Li-ion batteries with high energy density are suitable sustainable power sources for the energy storage generations. Keggin-type polyoxometalates (POM) are being regarded as an electrode material for energy storage devices, though advanced improvement is adaptable for futuristic applications. Consequently, we demonstrate [PMo10V2O40]−5 POM with hydrogen and lithium as counter cations for anode and cathode synthesize by simple and cost-effective method, with the average energy densities of 230 Wh g−1 and 329.4 Wh g−1. The material with lithium cation deliver high initial specific capacity 1414 mAh g−1 for anode and 332 mAh g−1 for cathode at 0.1C than the material with the hydrogen cation. Among which, the cathode seems favorable with long and stable cycle life. The structural, compositional, morphological and electrochemical studies are explored from the various physical and electrochemical techniques. Also the geometry optimization of POM with hydrogen and lithium clusters is studied from the computational studies. In these cluster with lithium cation acts as a promising electrodes for Li-ion rechargeable batteries.

中文翻译：

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keggin型多金属氧酸盐上锂离子的高能量存储作为可充电锂电池的电极

摘要 随着能源需求的增加，高能量密度的可充电锂离子电池是适合储能发电的可持续能源。Keggin 型多金属氧酸盐 (POM) 被视为储能设备的电极材料，尽管先进的改进适用于未来的应用。因此，我们证明了 [PMo10V2O40]-5 POM 与氢和锂作为反阳离子用于阳极和阴极合成，通过简单且经济高效的方法，平均能量密度为 230 Wh g-1 和 329.4 Wh g-1。与具有氢阳离子的材料相比，具有锂阳离子的材料在 0.1C 时提供了高的初始比容量，阳极为 1414 mAh g-1，阴极为 332 mAh g-1。其中，正极似乎具有长而稳定的循环寿命。结构性，从各种物理和电化学技术中探索了成分、形态和电化学研究。还从计算研究中研究了具有氢和锂簇的 POM 的几何优化。在这些具有锂阳离子的簇中，作为锂离子可充电电池的有前途的电极。