多层基底沉淀法制备镍钴锰酸锂的研究  

Preparation of nickel cobalt lithium manganate by multilayer substrate precipitation method

作　　者：欧彦楠 余海军 李长东 谢英豪 

机构地区：[1]广东邦普循环科技股份有限公司,广东佛山528244 [2]广东省动力电池和电动汽车循环利用研究院士工作站,广东佛山528244

出　　处：《材料研究与应用》2014年第1期39-41,51,共4页Materials Research and Application

基　　金：广东省产学研结合项目(2011A090700002);粤港关键领域重点突破项目(2011BZ100022);佛山市院市合作项目(2012HY100132);南海区环保产业创新发展专项资金项目(20120310)

摘　　要：先采用多层基底沉淀法合成镍钴锰酸锂前驱体,然后与碳酸锂混合,最后经高温煅烧,可获得中粒径达8.68μm的镍钴锰酸锂.随着基底间距增大,镍钴锰酸锂粒径增大.当基底间距为0.5cm时,可获得分布均匀、尺寸相近、形貌一致性高的镍钴锰酸锂.将镍钴锰酸锂样品作为正极材料,组装成纽扣模拟电池测其电性能,结果表明:随着镍钴锰酸锂粒径的减小,其寿命降低,但是比容量增大,最高可达151mAh/g.Nickel cobalt lithium manganate with particle size about 8. 68μm was synthesized by multilayer substrate precipitation method using the precursor being calcined with lithium carbonate at high temperate. As the distance between substrate increased, the partiles size of nickel cobalt lithium manganate rose. When the distance was about 0. 5cm, the morphology of nickel cobalt lithium manganate are uniform with similar size. A simulation battery was assembled using nickel cobalt lithium manganate as anode material and the electrochemical analysis showed that cycling stability became worse as the particles of nickel cobalt lithium manganate decreased, but discharge capability increased and it could reach 151 mAh/g.

关 键 词：镍钴锰酸锂 前驱体 多层基底沉淀法 

分 类 号：TM912.9[电气工程—电力电子与电力传动]