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镍酸锂前驱体——球形Ni（OH）₂的制备工艺研究

Study on Preparation of LiNiO₂ Precursor——Spherical Ni（OH）₂

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【Author】 ZHANG Shu- jing1, ZHONG Sheng- wen1, ZHANG Qian1, KUANG Jing- zhong1, ZHONG Guo- xiong2 (1.School of Materials and Chemical Engineering, Jiangxi University of Science & Technology, Ganzhou 341000, Jiangxi, China; 2.Ganzhou Yuhao Youmeike lndustry Co., Ltd, Ganzhou 341000, Jiangxi, China)

【机构】江西理工大学材料与化学工程学院；赣州逸豪优美科实业有限公司江西赣州341000；江西赣州341000；

【摘要】采用氨络合液相沉淀法制备球形Ni(OH)2,SEM检测样品晶粒形貌,XRD物相分析。制备过程中考察的主要影响因素包括反应物浓度、反应温度、搅拌速度等。确定的参数为:NiSO4的浓度0.5mol/L,NaOH的浓度1mol/L,氨水的浓度1mol/L,水浴温度控制在60℃,搅拌速度1100r/min,样品的干燥温度为100℃。更多还原

【Abstract】 Spherical Ni(OH)2 is prepared by NH3- coordinating liquid phase deposition, its morphology and distribution are observed by means of SEM, crystal structure and components are confirmed by XRD. The effects of reaction temperature, reactants concentration,stirring rate and desiccation temperature on the performance of nickel hydroxide are discussed.The optimum process parameters of preparing the fine spherical Ni (OH)2 are that the concentration of NiSO4 is 0.5mol/L ,the concentration of NaOH is 1mol/L, the concentration of ammonia is 1mol/L , the reaction temperature is 60℃, the stirring rate is kept at 1100 r/min and the desiccation temperature is 100℃.更多还原