锂离子电池铁木基负极材料的电化学性能研究  

Electrochemical Properties of Iron-wood-based Anode Materials for Lithium-ion Batteries

作　　者：刘天天 吉升升 崔承珺 杨世文[1] 王立勇 Liu Tiantian;Ji Shengsheng;Cui Chengjun;Yang Shiwen;Wang Liyong(School of Energy and Power Engineering,North University of China,Shanxi,030051;School of Chemistry and Chemical Engineering,North University of China,Shanxi,030051)

机构地区：[1]中北大学能源与动力工程学院,山西030051 [2]中北大学化学与化工学院,山西030051

出　　处：《当代化工研究》2025年第1期37-39,共3页Modern Chemical Research

基　　金：2024年度山西省自然基金面上项目“高比容量石墨/硅负极材料的结构设计及储锂机制研究”(项目编号:202303021211161);2023年山西省高等学校教学改革创新项目“基于成果导向教育的综合实践课程教学模式改革探索——以‘能量转化与存储器件设计综合实践’课程为例”(项目编号:J20230740)。

摘　　要：以铁木为原料,经过碳化和石墨化处理制备出具有较好石墨化程度的生物质石墨材料,以其作为锂离子电池负极进行电化学储锂性能研究。研究结果表明,经过2800℃石墨化处理,该材料的碳层间距为0.338 nm;拉曼峰值比R值为0.29;含有大量以2.24 mm、3.2 nm为中心的介孔。在0.05 A·g^(-1)的电流密度下循环100次后其可逆容量仍保持在340.4 mAh·g^(-1),并且具有优异的倍率性能,该材料表现出优异的循环储锂性能,有望以低成本生物质基石墨负极材料应用于锂离子电池。In this work the ironwood is prepared to be anode material via carbonization and graphitization procedure,which is beneficial to the high degree of graphitization.The experimental results show that after graphitization treatment at 2800℃the interlayer spacing of the prepared material is 0.338 nm,with a Raman peak ratio(R value)of 0.29,and containing a large number of mesopores centered at 2.24 nm and 3.2 nm.It has a reversible capacity of 340.4 mAh·g^(-1) after 100 cycles at a current density of 0.05 A·g^(-1),and also has good rate capability,indicating its excellent electrochemical performance.It can be applied potentially as low-cost biomass-based graphite anode material for lithium-ion batteries.

关 键 词：锂离子电池 碳基材料 电化学性能 

分 类 号：TM912.9[电气工程—电力电子与电力传动]