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Electrochemical characterization of orthorhombic tungsten trioxide hydrate for battery applications
Journal of Alloys and Compounds ( IF 6.2 ) Pub Date : 2021-02-19 , DOI: 10.1016/j.jallcom.2021.159234
M Manuja , Tintu Thomas , Sam John , Joshy Jose , Gijo Jose

2D nanoflake structures of orthorhombic WO30.33H2O are prepared using the hydrothermal procedure and subjected to conductivity and electrochemical studies. Permittivity measurements from ac conductivity study and I–V characteristics from DC conductivity measurements point toward the energy storage efficiency of the material. Cyclic voltametry measurements support the observations and demonstrate the dominant battery like behavior with 93.99% diffusion controlled and 6.01% surface controlled process occurring in the sample. Chronoamperometry explains the fastest coloration and bleaching time (tc = 0.46 s and tb = 0.98 s) ever reported. Finally, WO30.33H2O is proved to be a good cathode material in the assembly of WO30.33H2O/KCl/Mg as a solid state battery.



中文翻译:

斜方晶系三氧化钨水合物的电化学特性

使用水热程序制备正交晶WO 3 0.33H 2 O的2D纳米片结构,并对其进行电导和电化学研究。交流电导率研究的介电常数测量值和直流电导率测量的I–V特性曲线指向材料的储能效率。循环伏安法测量结果支持了这些观察结果,并证明了主要的电池样行为,样品中发生了93.99%的扩散受控和6.01%的表面受控过程。计时电流法解释了有史以来最快的着色和漂白时间(t c  = 0.46 s和t b  = 0.98 s)。最后,WO 3 0.33H 2在WO 3 0.33H 2 O / KCl / Mg作为固态电池的组件中,O被证明是一种很好的阴极材料。

更新日期:2021-03-02
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