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首页> 外文期刊>Science of advanced materials >Pre-Charge Treatment of Li-Riched Li[Li_(0.2)Co_(0.4)Mn_(0.4)]O_2 Cathode Material for Lithium Ion Batteries
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Pre-Charge Treatment of Li-Riched Li[Li_(0.2)Co_(0.4)Mn_(0.4)]O_2 Cathode Material for Lithium Ion Batteries

机译:富锂离子电池Li [Li_(0.2)Co_(0.4)Mn_(0.4)] O_2正极材料的预充电处理

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摘要

The Li[Li_(0.2)Co_(0.4)Mn_(0.4)]O_2 cathode material was prepared by a sol-gel method. Combinative X-ray diffraction (XRD) and Raman scattering studies showed that the material was a solid solution of LiCoO_2 and Li_2MnO_3. The material showed a reversible discharge capacity of 155.6 mAhg~(-1) in the voltage window of 2.0-4.3 V after per-charged to 4.6 V, which was much higher than that without pre-charge (77.6 mAhg~(-1)). The high capacity was attributed to the loss of oxygen during the pre-charge process.
机译:通过溶胶-凝胶法制备Li [Li_(0.2)Co_(0.4)Mn_(0.4)] O_2正极材料。结合X射线衍射(XRD)和拉曼散射研究表明,该材料为LiCoO_2和Li_2MnO_3的固溶体。该材料在充电至4.6 V后在2.0-4.3 V的电压范围内显示出155.6 mAhg〜(-1)的可逆放电容量,远高于没有预充电时的77.6 mAhg〜(-1) )。高容量归因于预充电过程中的氧气损失。

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  • 来源
    《Science of advanced materials》 |2012年第8期|p.843-846|共4页
  • 作者单位

    College of Materials Science and Engineering, Jilin University, Changchun 130012, P. R. China;

    College of Physics and Key Laboratory of Physical and Technology for Advanced Batteries,Ministry of Education, Jilin University, Changchun 130012, P. R. China;

    College of Materials Science and Engineering, Jilin University, Changchun 130012, P. R. China;

    College of Physics and Key Laboratory of Physical and Technology for Advanced Batteries,Ministry of Education, Jilin University, Changchun 130012, P. R. China,State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China;

    College of Physics and Key Laboratory of Physical and Technology for Advanced Batteries,Ministry of Education, Jilin University, Changchun 130012, P. R. China,State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China;

    College of Physics and Key Laboratory of Physical and Technology for Advanced Batteries,Ministry of Education, Jilin University, Changchun 130012, P. R. China,State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Li-ion battery; Li-rich layer material; pre-charge; raman scattering;

    机译:锂离子电池;富锂层材料;预充电拉曼散射;

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