张晨,郑江峰,唐攀.纳米TiO2修饰LiNi0.83Co0.11Mn0.06O2正极材料改性研究[J].有色金属(冶炼部分),2019(11):66-69.
纳米TiO2修饰LiNi0.83Co0.11Mn0.06O2正极材料改性研究
Study on Nano-TiO2 Modified LiNi0.83Co0.11Mn0.06O2 Cathode Material
投稿时间:2019-06-25  修订日期:2019-06-28
DOI:doi:10.3969/j.issn.1007-7545.2019.11.014
中文关键词:  控制结晶沉淀法  [Ni0.83Co0.11Mn0.06](OH)2  LiNi0.83Co0.11Mn0.06O2  掺杂改性
英文关键词:controlled crystallization precipitation method  [Ni0.83Co0.11Mn0.06](OH)2  LiNi0.83Co0.11Mn0.06O2  doping modification
基金项目:广东省扬帆计划引进创新创业团队专项基金(粤财教[2017]108号)
        
作者单位
张晨 广东佳纳能源科技有限公司
郑江峰 广东佳纳能源科技有限公司
唐攀 广东佳纳能源科技有限公司
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中文摘要:
      采用共沉淀法先合成[Ni0.83Co0.11Mn0.06](OH)2前驱体,在纯氧气氛下经过两段高温烧结生成LiNi0.83Co0.11Mn0.06O2正极材料。通过在前驱体配锂烧结过程中加入纳米TiO2实现了Ti4+离子掺杂,经过掺杂后的Li[Ni0.83Co0.11Mn0.06]0.98Ti0.02O2正极材料在1C电流密度下的放电比容量高达185.6 mAh/g,循环100圈后容量维持在178.8 mAh/g,容量保持率高达96.33%。
英文摘要:
      [Ni0.83Co0.11Mn0.06](OH)2 precursor was firstly synthesized by coprecipitation method, and LiNi0.83Co0.11Mn0.06O2 cathode material was formed by two-stage sintering process in pure oxygen atmosphere. Ti4+ ion doping was achieved by adding nano-TiO2 in sintering process of precursor. Li[Ni0.83Co0.11Mn0.06]0.98Ti0.02O2 cathode shows an initial capacity of 185.6 mAh/g at current density of 1 C, and a capacity of 178.8 mAh/g can be obtained after 100 cycles, which corresponding retention ratio is up to 96.33%.
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