搅拌频率对高镍三元前驱体合成的影响  

Effect of Stirring Frequency on Synthesis of High Nickel Ternary Precursor

作　　者：何秋瑾 曹凯峰 刘勇奇 巩勤学 He Qiujin;Cao Kaifeng;Liu Yongqi;Gong Qinxue(Technical Department of Hu’nan Brunp Technology Co.,Ltd.,Changsha 412600,China)

机构地区：[1]湖南邦普循环科技有限公司,湖南长沙412600

出　　处：《广东化工》2022年第10期17-19,共3页Guangdong Chemical Industry

摘　　要：高镍三元前驱体因其容量高,循环性能好等优点在锂电池市场已经成为主流材料,本文以硫酸镍、硫酸钴、硫酸锰为金属源,氢氧化钠溶液为沉淀剂,氨水作为络合剂,采用连续溢流共沉淀法制备高镍三元前驱体Ni_(0.82)Co_(0.12)Mn_(0.06)(OH)_(2),利用扫描电子显微镜、X射线衍射仪、马尔文MS-3000激光粒度仪等手段对该材料进行分析表征。通过研究共沉淀反应中搅拌频率对前驱体物化性能影响,进而合成一次颗粒形貌差异较小,粒度分布适中,物化参数指标在合格范围的前驱体。High nickel ternary precursor has become the mainstream material in lithium battery market due to its high capacity,good cycling performance and other advantages.In this paper,nickel sulfate,cobalt sulfate,manganese sulfate as metal sources,sodium hydroxide solution as precipitation agent,ammonia water as complexation agent,using continuous flooding coprecipitation method to prepare high nickel ternary precursor Ni_(0.82)Co_(0.12)Mn_(0.06)(OH)_(2),The material was characterized by scanning electron microscope,X-ray diffractometer and Malvern MS-3000 laser particle size analyzer.By studying the effect of stirring frequency on the physical and chemical properties of precursors in co-precipitation reaction,the precursors with small morphologic difference,moderate particle size distribution and qualified physical and chemical parameters were synthesized.

关 键 词：高镍三元前驱体 共沉淀 搅拌频率 形貌 晶胞参数 

分 类 号：TQ[化学工程]