新材料与新技术

木质素基碳微球的制备及其储锂性能研究

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  • 1.北京石油化工学院化学工程学院,燃料清洁化及高效催化减排技术北京市重点实验室, 北京 102617;
    2.清华大学核能与新能源技术研究院,北京 100084
张牮(1993-),男,硕士研究生,研究方向为新型能源材料与电化学。

收稿日期: 2019-05-15

  修回日期: 2020-05-10

  网络出版日期: 2020-10-20

基金资助

北京市属高等学校高层次人才引进与培养计划项目(CIT&TCD20130325)

Preparation and lithium storage property of lignin-based carbon microsphere

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  • 1. Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology,College of Chemical Engineering,Beijing Institute of Petrochemcial Technology, Beijing 102617;
    2. Institute of Nuclear and New Energy Technology,Tsinghua University, Beijing 100084

Received date: 2019-05-15

  Revised date: 2020-05-10

  Online published: 2020-10-20

摘要

以木质素磺酸钠为原料,采用水热法成功制备木质素基碳微球。水热反应温度和水热反应时间是影响碳微球球形度、石墨微晶结构完善性以及电化学性能的主要因素。水热反应温度为230℃、水热反应时间为12h时制备的碳微球粒径为5~7μm,表现出最佳的电化学性能,0.1C充放电可逆比容量达389.4mAh/g,1C充放电容量达180mAh/g,1C倍率下循环100次后容量保持率高达97.8%。

本文引用格式

张牮, 李建刚, 亢玉琼, 何向明, 刘才 . 木质素基碳微球的制备及其储锂性能研究[J]. 化工新型材料, 2020 , 48(9) : 111 -116 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.09.024

Abstract

The lignin-based carbon microspheres can be successfully prepared by hydrothermal method.The hydrothermal reaction temperature and time were the main factors affecting the sphericity,the integrity of graphite microcrystals and properties of carbon microspheres.The carbon material prepared by hydrothermal reaction at 230℃ for 12h had a particle size range of 5~7μm and exhibited the best electrochemical performance.It shown a reversible capacity of 389.4mAh/g at 0.1C rate,and 180mAh/g at 1C rate.Its capacity still remained 97.8% after charge-discharged at 1C rate for 100 cycles.

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