Ultrafast Alkaline Ni/Zn Battery Based on Ni-Foam-Supported Ni3S2 Nanosheets

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• 作者：Pu Hu ; Tianshi Wang ; Jingwen Zhao ; Chuanjian Zhang ; Jun Ma ; Huiping Du ; Xiaogang Wang ; Guanglei Cui
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：December 9, 2015
• 年：2015
• 卷：7
• 期：48
• 页码：26396-26399
• 全文大小：303K
• ISSN：1944-8252

文摘

Self-supported Ni₃S₂ ultrathin nanosheets were in situ formed by direct sulfurization of commercially available nickel foam using thioacetamide as sulfur source under hydrothermal process. The morphology and structure of the as-obtained sample were analyzed by using XRD, XPS, SEM, and TEM, revealing that an ultrathin nanosheets Ni₃S₂ were grown on the surface of Ni form. The as-obtained Ni₃S₂/Ni composite with uniform architecture was used as cathode material for alkaline Ni/Zn battery, which delivered high capacity of 125 mAh g^鈥? after 100 cycles with no obvious capacity fading, extraordinary rate capability (68 mAh g^鈥? at the current density of 5.0 A g^鈥?), and high operating voltage (1.75 V).