2021年 03期

摘要(Abstract)：

以葫芦科丝瓜藤蔓为前驱体,通过高温热解碳化制备具有多级孔结构的硬碳材料;采用扫描电子显微镜、 X射线衍射、透射电子显微镜和氮气吸附-脱附等方法,对制备的硬碳材料进行形貌和结构分析;采用循环伏安和恒流充放电等测试方法,对制备的硬碳材料的储锂电化学性能进行分析。结果表明:丝瓜藤蔓衍生的硬碳材料富含微孔、介孔多级孔结构,在一定程度上保留了丝瓜藤蔓的生物学结构特性,促进了锂离子在石墨层间及活性位点的脱嵌-吸脱附动力学;与商业化硬碳石墨材料相比,所制备硬碳材料的比容量、倍率、循环性能具有明显的优势。

关键词(KeyWords)： 锂离子电池;硬碳材料;热分解;负极材料;生物质

基金项目(Foundation): 国家自然科学基金项目(51562017);; 山东省高等学校科研创新平台项目(2018LS001,2018YY027);; 潍坊市科技发展计划项目(2018GX063)

作者(Author): 孙晓丽,袁金秀,张姗姗,于会华,刘伟伟,李成杰

DOI: 10.13349/j.cnki.jdxbn.20201120.001

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