Molten Salt Synthesis and Its Electrochemical Characterization of Co3O4 for Lithium Batteries
Molten Salt Synthesis and Its Electrochemical Characterization of Co3O4 for Lithium Batteries
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DOI：
10.1149/1.3556984
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发表时间：
2011-05
影响因子：
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通讯作者：
M. Reddy;Z. Beichen;Li Jia’en Nicholette;Zhang Kaimeng;B. Chowdari
中科院分区：
文献类型：
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作者：
M. Reddy;Z. Beichen;Li Jia’en Nicholette;Zhang Kaimeng;B. Chowdari
Co 3 O 4 粉末是通过在280℃空气中使用0.88M LiNO 3 :0.12M LiCl共晶熔体进行一次熔盐合成来制备的。它们通过 X 射线衍射、扫描电子显微镜、密度和表面积方法进行表征。使用循环伏安法和恒电流循环评估电化学性能，循环范围为室温下0.005-3.0 V。在本文中，我们研究了不同钴盐对形态和电化学性能的影响。硫酸钴制备的Co 3 O 4 3 h观察到的可逆容量（电流倍率60 mA g−1，第40次循环）； 15h，Co-氢氧化物和Co-乙酸盐为786；分别为 707、1080 和 916 (±5) mAh g−1。在 600 mA g−1 的电流下，第 50 次循环结束时，其可逆容量为 710 (±5) mAh g−1（使用氢氧化钴源制备）。
Co 3 O 4 powders are prepared by one molten salt synthesis at 280 C in air using 0.88 M LiNO 3: 0.12 M LiCl eutectic melt. They are characterized by x-ray diffraction, scanning electron microscopy, density and surface area methods. The electrochemical properties were evaluated using cyclic voltammetry and galvanostatic cycling, in the cycling range, 0.005–3.0 V at room temperature. In this article, we studied the effect of different Co-salts on morphology and electrochemical properties. The observed reversible capacities (at a current rate of 60 mA g− 1, at 40th cycle) of Co 3 O 4 prepared by using Co-sulphate for 3 h; 15 h, Co-hydroxide and Co-acetate salts are 786; 707, 1080 and 916 (±5) mAh g− 1, respectively. At a current of 600 mA g− 1, it deliver a reversible capacity of 710 (±5) mAh g− 1 (prepared using Co-hydroxide source), at the end of 50th cycle.