黑龙江科技大学学报2025，Vol.35Issue(5)：711-716,746,7.DOI:10.3969/j.issn.2095-7262.2025.05.004
改性煤基针状焦高倍率锂电负极材料的制备及其性能
Preparation and performance of modified coal-based needle coke as high-rate lithium battery anode material
摘要
Abstract
This paper seeks to improve the rate performance of coal-based needle coke as anode ma-terial for lithium batteries.The study involves using KOH to activate high-temperature coal tar pitch nee-dle coke,and investigating the relationship between KOH modified needle coke and lithium battery rate performance by the structural characterizations of SEM,XRD,FT-IR and electrochemical performance test methods.The results show that when the alkali-carbon ratio is 3∶1,the specific capacities of the modified needle coke at 0.1 and 1 C are 345 and 249 mA·h/g,respectively.Compared with the specif-ic capacity at 1 C current density,the specific capacity at 5 C current density retains 54.61%.After 200 cycles,the specific capacities still shows good cycle stability,and the capacity retention rate is 85.1%.关键词
煤基针状焦/倍率性能/锂电负极/KOH活化Key words
coal-based needle coke/rate performance/lithium battery anode/KOH activation分类
通用工业技术引用本文复制引用
白洋,刘思妍,胡锦坤..改性煤基针状焦高倍率锂电负极材料的制备及其性能[J].黑龙江科技大学学报,2025,35(5):711-716,746,7.基金项目
黑龙江省省属高等学校基本科研业务费项目(2022-KYYWF-0542) （2022-KYYWF-0542）
黑龙江科技大学高层次人才科研启动基金项目(HKD202106) （HKD202106）
