电脱氧法制备Ni基电池材料的研究  

Preparation of Ni-Based Cell Materials by Electro-Deoxidization in Molten Salt

作　　者：赵炳建[1,2] 鲁雄刚[1] 王岭[3] 崔广华[3] 

机构地区：[1]上海大学上海市现代冶金与材料制备重点实验室,上海200072 [2]河北钢铁集团唐山钢铁股份有限公司,河北唐山063016 [3]河北理工大学,河北唐山063009

出　　处：《稀有金属材料与工程》2010年第6期1089-1093,共5页Rare Metal Materials and Engineering

基　　金：国家“863”项目(2006AA06Z124);国家自然科学基金(50774052,50772030);教育部新世纪优秀人才计划(NCET-06-0434);教肓部长江学者和创新团队发展计划项目(IRT0739)

摘　　要：利用电脱氧法(FFC)从NiO-CeO2、NiO-SnO2氧化物制备CeNi5、Ni3Sn2。以不同温度烧结的混合氧化物试样作阴极,石墨碳棒作阳极,在850℃的CaCl2熔盐中,3.1V电压下完成反应。采用SEM和XRD分析电解前后试样形貌及相组成。结果表明:烧结温度越高,试样的孔隙率越低,电解电流越小;不同温度烧结试样可电解出纯CeNi5相,低温烧结试样可电解出纯Ni3Sn2相,产物为疏松的海绵状。本实验为电池材料提供了一种新的制备方法。CeNi5 and Ni3Sn2 were prepared from NiO-CeO2 and NiO-SnO2 oxides by electro-deoxidization （FFC）. The samples of mixed oxides sintered at different temperatures were used as cathode, and the graphite rod was used as anode. Then the reaction was completed under 3.1 V in the CaCl2 solution at 850 oC. The morphology and phase composition of the samples before and after deoxidization were analyzed by SEM and XRD. Results show that the sample has lower porosity and smaller electro-deoxidization current under the condition of higher sintering temperature. The product from samples sintered at different temperatures was pure CeNi5; the product from samples sintered at lower temperature was pure Ni3Sn2 with loose sponginess. The research provides a new method for cell materials preparation

关 键 词：电脱氧 熔盐 Ni基 电池材料 氧化物 

分 类 号：TF111.52[冶金工程—冶金物理化学]