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首页> 外文期刊>Materials Chemistry and Physics. >Effects of different carbonate precipitators on LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 morphology and electrochemical performance
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Effects of different carbonate precipitators on LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 morphology and electrochemical performance

机译：不同碳酸盐沉淀剂对LiNi_（1/3）Co_（1/3）Mn_（1/3）O_2形貌和电化学性能的影响

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摘要

Compounds LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 are prepared by adopting different carbonate, i.e., NaHCO_3, NH_4HCO_3 and Na_2CO_3 under the same conditions, which results in the impressive differences in the morphology properties and electrochemical behaviors of LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2. The microscopic structural features of LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 are investigated using X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). The electrochemical properties of LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 are carried out by charge-discharge cycling tests and the electrochemical reactions during charge-discharge process are also investigated by the cyclic voltammetry (CV). Experimental results show that the microscopic structural features, the morphology properties and electrochemical performances are deeply related to the precipitators. In addition, the cyclic voltammetrv indicates that the oxidation of nickel occurs by two steps Ni~(2+)→Ni~(3+)→ Ni~(4+).
机译：通过在相同条件下采用不同的碳酸盐即NaHCO_3，NH_4HCO_3和Na_2CO_3来制备化合物LiNi_（1/3）Co_（1/3）Mn_（1/3）O_2，这导致形貌特性和LiNi_（1/3）Co_（1/3）Mn_（1/3）O_2的电化学行为。利用X射线衍射（XRD）和扫描电镜（SEM）研究了LiNi_（1/3）Co_（1/3）Mn_（1/3）O_2的微观结构特征。 LiNi_（1/3）Co_（1/3）Mn_（1/3）O_2的电化学性能通过充放电循环测试进行，并通过循环伏安法（CV）研究了充放电过程中的电化学反应。 ）。实验结果表明，微观结构特征，形貌特性和电化学性能与沉淀剂有密切关系。另外，循环伏安法表明镍的氧化发生了两个步骤：Ni〜（2+）→Ni〜（3+）→Ni〜（4+）。

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  • 来源
    《Materials Chemistry and Physics.》 |2009年第1期|41-45|共5页
  • 作者

    Haibo Ren; Yanghui Huang; Yunhong Wang; Zhongjing Li; Ping Cai; Zhenghe Peng; Yunhong Zhou;

  • 作者单位

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China;

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China Department of Applied Chemistry, East China Institute ofTechnology, Fuzhou 344000, PR China;

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China;

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China;

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China;

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China;

    Department of Chemistry, Wuhan University, Wuhan 430072, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composite materials; sintering; crystal structure; electrochemical properties;

    机译：复合材料;烧结;晶体结构电化学性能;

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