摘要
以14种无定形碳作为研究对象,进行了X射线粉末衍射(XRD)和拉曼光谱(Raman)表征,并将其作为负极材料制备成扣电进行了锂电池性能的评价。以Fujimoto提出的关系式为基础,得到为无定形碳负极材料的结构与锂电容量的关系,并通过实验数据进行验证。结果表明,实验容量值与理论值存在一定的偏差,这与无定形碳负极材料和石墨的结构差异有关,但是实验值均在理论值的范围之内,说明该理论关系对于预测无定形碳材料的容量值有一定的参考价值。
14 types of amorphous carbon materials were investigated and were characterized by X-ray diffraction (XRD) and Raman spectrum,respectively.The lithium ion battery properties of the coin cells,which used the 14 amorphous carbon materials as anode,were evaluated as well.On the basis of the correlation proposed by Fujimoto,the relationship between the structure of anode materials and the capacity of the lithium ion batteries was obtained,which was verified through the experimental data.It is found that there exists certain deviation between the experimental data and the theoretical values.However,the experimental data are in the range of the theoretical values,indicating this theoretical correlation throws some new light on the predicting the capacity of the amorphous carbon materials as anodes.
作者
魏建明
刘均庆
冯波
陈全彬
Wei Jianming;Liu Junqing;Feng Bo;Chen Quanbin(National Institute of Clean-and-Low-Carbon Energy,Beijing,102211)
出处
《当代化工研究》
2021年第17期41-42,共2页
Modern Chemical Research
基金
国家能源集团科技创新项目(GJNY-18-97)。
关键词
无定形碳材料
锂电池
结构
性能
amorphous carbon materials
lithium ion batteries
structure
property
