储能科学与技术 ›› 2019, Vol. 8 ›› Issue (3): 580-582.doi: 10.12028/j.issn.2095-4239.2018.0117

• 研究开发 • 上一篇    下一篇

沥青包覆人造石墨炭化处理工艺

冯国飞, 武建国, 刘伟, 徐生华, 林治珠   

  1. 山西三元炭素有限责任公司, 山西 朔州 036002
  • 收稿日期:2018-07-09 修回日期:2019-03-14 出版日期:2019-05-01 发布日期:2019-05-01
  • 通讯作者: 武建国,高级工程师,研究方向为碳材料,E-mail:dujh@hqu.edu.cn
  • 作者简介:冯国飞(1986-),男,工程师,研究方向为锂电池负极材料,E-mail:fgf2011@126.com

Carbonization process of artifcial graphite coated with asphalt

FENG Guofei, WU Jianguo, LIU Wei, XU Shenghua, LIN Zhizhu   

  1. Shanxi SanYuan Carbon Co., LTD., ShuoZhou 036002, Shanxi, China
  • Received:2018-07-09 Revised:2019-03-14 Online:2019-05-01 Published:2019-05-01

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摘要： 为了提高人造石墨包覆后的炭化收率和电化学性能，本文采用改性沥青对人造石墨进行包覆，并经预氧化处理后再炭化。采用激光粒度分布仪、振实密度仪和比表面及孔径测试仪对炭化样品进行表征，并进一步对其电化学性能进行了研究。结果表明：炭化过程加入预氧化处理，有效地改善了结块现象，并极大的提高了负极材料的电化学性能。

关键词: 包覆, 炭化, 预氧化, 锂离子电池, 负极材料

Abstract: In order to improve the carbonization yield and electrochemical properties of artificial graphite, the artificial graphite is coated with modified asphalt and carbonized after preoxidation treatment. The carbonized samples were characterized by laser particle size distributor, densitometer and specific surface and aperture tester, and the electrochemical performance was further studied. The results show that the preoxidation treatment in the carbonization process can effectively improve the agglomeration phenomenon and greatly improve the electrochemical properties of the cathode materials.

Key words: cladding, carbonized, preoxidation, lithium ion battery, anode materials

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