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Preparation of porous carbon microspheres anode materials from fine needle coke powders for lithium-ion batteries

机译：锂离子电池微针焦炭粉末多孔碳微球的制备

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摘要

A large amount of fine carbon powders (graphite and cokes) are generated as the solid waste in the manufacture of carbon-based materials in industry. How to utilize these abundant powders to generate products with high value still remains a big challenge. Herein, we report the preparation of porous carbon microspheres (PCMs) employing waste non-graphitized needle coke and graphitized needle coke as the fine carbon powder representatives, demonstrating their use as anode materials for lithium-ion batteries. It was found that the graphitized PCMs had a size of 8-30 mu m and surface areas between 50 and 120 m(2) g(-1). When used as the anode materials, their charge capacity at the current density of 50 mA g(-1) was comparable to that of the commercial graphite microspheres, but they exhibited higher rate performance.
机译：大量的细碳粉（石墨和焦炭）作为制造工业中碳基材料的固体废物产生。 如何利用这些丰富的粉末来产生高价值的产品仍然是一个很大的挑战。 在此，我们报告了采用废物非石墨针焦和石墨化针焦作为细碳粉代表的多孔碳微球（PCM）的制备，证明了它们作为锂离子电池的阳极材料。 发现石墨化的PCM的尺寸为8-30μm，表面区域为50至120μm（2）g（-1）。 当用作阳极材料时，其电流密度为50mA g（-1）的电荷容量与商业石墨微球的电荷容量相当，但它们表现出更高的速率性能。

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  • 来源
    《RSC Advances》 |2015年第15期|共9页
  • 作者

    Ren Wenfeng; Zhang Zailei; Wang Yanhong; Kan Guangwei; Tan Qiangqiang; Zhong Ziyi; Su Fabing;

  • 作者单位

    Chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China;

    ASTAR Inst Chem Engn &

    Sci Jurong Isl 627833 Singapore;

    Chinese Acad Sci Inst Proc Engn State Key Lab Multiphase Complex Syst Beijing 100190 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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