单壁碳纳米管内封装1,4-萘醌作为锂/钠离子电池正极的性能分析  

Performance Analysis of 1,4-naphthylquine Encapsulated in Single Wall Carbon Nanotubes as Cathode for Lithium/Sodium Ion Batteries

作　　者：秦牧岚 李苍昊 QIN Mulan;LI Canghao(School of Material Engineering,Lanzhou Institute of Technology,Lanzhou 730050,China)

机构地区：[1]兰州工业学院材料工程学院,甘肃兰州730050

出　　处：《兰州工业学院学报》2022年第4期33-37,共5页Journal of Lanzhou Institute of Technology

基　　金：兰州工业学院‘启智’人才培养计划基金资助(2020QZ-11);兰州工业学院青年科技创新项目(2020KJ-03)。

摘　　要：1,4-萘醌因具有价格低廉、环境友好和高能量密度等优点,可作为电池的电极材料。然而,由于1,4-萘醌导电性较差、易溶解于电解液中等问题,限制了其作为锂/钠离子电池电极的应用。以单壁碳纳米管为容器,将1,4-萘醌封装在单壁碳纳米管内部后进行了电化学性能测试。拉曼光谱试验结果表明:与单壁碳纳米管之间的“π-π”键相互作用可以有效阻止1,4-萘醌的溶解,而且提高了1,4-萘醌对锂/钠离子的存储性能。Owing to few advantages with the lower cost,environmental friendliness and higher energy density,1,4-naphthoquinone has a potential prospect applying to the electrode of lithium/sodium ion battery.However,the poor conductivity and the easy dissolution in electrolyte limit 1,4-naphthoquinone application.In this study,single-walled carbon nanotubes were used as capsule to encapsulate 1,4-naphthoquinone molecules.By using Raman spectroscopy,it was found that"π-π"bond interaction between 1,4-naphthoquinone and single-walled carbon nanotubes can not only prevent the dissolution of 1,4-naphthoquinone,but improves the storage performance.

关 键 词：1 4-萘醌 单壁碳纳米管 锂/钠离子电池 电极材料 

分 类 号：O646.54[理学—物理化学] TB32[理学—化学]