醋酸纤维衍生的石墨碳作为锂离子电池的负极材料  

Graphite Carbon Derived from Acetate Fiber as a Negative Electrode Material for Lithium-ion Batteries

作　　者：胡宁 朱良华[2] 王超[2] 李娜 秦杰明[1] HU Ning;ZHU Lianghua;WANG Chao;LI Na;QIN Jieming(School of Materials Science and Engineering,Changchun University of Science and Technology,Changchun 130022;Jilin Tobacco Industry Co.,Ltd,Changchun 130031)

机构地区：[1]长春理工大学材料科学与工程学院,长春130022 [2]吉林烟草工业有限责任公司,长春130031

出　　处：《长春理工大学学报（自然科学版）》2024年第5期57-64,共8页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林烟草工业有限责任公司科技项目(KJXM-2022-07);吉林省发改委创新能力建设项目(2024C018-1)。

摘　　要：随着人们对环境安全认知的不断进步,如何将废弃的卷烟滤棒转化为高价值产品已成为人们关注的焦点。基于此,根据废弃卷烟滤棒(discarded cigarette filters记作DCFs)中醋酸纤维结构和形貌具有一致性的特点,在高压下对DCFs进行了热解研究。其中,50 MPa和1000℃下仅需要15 min即可制备出一种网状结构的石墨碳材料(记作HP-1000),其收益率高达41.5%。作为锂离子电池的负极材料,HP-1000展现出良好的比容量和倍率性能,特别是在5 C下循环获得了105 mAh g^(-1)的比容量。因此,这项工作不仅解决了多年来棘手的卷烟滤棒废弃物对环境影响问题,同时也为储能领域提供了高性能和廉价的石墨碳负极材料。As awareness of environmental safety continues to advance,the transformation of discarded cigarette filter(DCFs)into high-value products has emerged as a focal point of interest.Leveraging the consistent structure and morphology of acetate fibers within DCFs,pyrolysis studies were conducted on WCFs under high pressure.Specifically,a network-structured graphite carbon material(designated as HP-1000)was successfully synthesized within 15 minutes at 50 MPa and 1000°C,yielding a remarkable 41.5%of the initial mass.When employed as a negative electrode material in lithium-ion batteries,HP-1000 demonstrated impressive specific capacity and rate performance,achieving a specific capacity of 105 mAh g^(-1) after cycling at a high rate of 5 C.Consequently,this research not only addresses the persistent environmental challenge posed by DCF waste but also contributes to the energy storage field by offering a high-performance and cost-effective graphite carbon negative electrode material.

关 键 词：醋酸纤维 废弃物 锂离子电池 石墨碳 压力热解 

分 类 号：TM912[电气工程—电力电子与电力传动]