碳包覆的K(0.8)Ti(1.73)Li(0.27)O4：一种具有长循环寿命的新型钠离子电池负极材料。
Carbon coated K(0.8)Ti(1.73)Li(0.27)O4: a novel anode material for sodium-ion batteries with a long cycle life.
作者信息
Chen Kong-yao, Zhang Wu-xing, Liu Yang, Zhu Hua-ping, Duan Jian, Xiang Xing-hua, Xue Li-hong, Huang Yun-hui
机构信息
State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.
出版信息
Chem Commun (Camb). 2015 Jan 31;51(9):1608-11. doi: 10.1039/c4cc08051c.
Carbon coated K0.8Ti1.73Li0.27O4 (KTLO) has been synthesized by a facile flux method followed by ball-milling and gaseous carbon coating. The carbon coated KTLO delivers a reversible specific capacity of 119.6 mA h g(-1) at 20 mA g(-1) with no capacity loss after 250 cycles as an anode material in sodium ion batteries, exhibiting an improved rate capability of 66 mA h g(-1) at 200 mA g(-1). It was found that carbon coating of KTLO not only enhances its electronic conductivity, but also improves the structure stability, proving that the carbon coated KTLO is a promising anode material for sodium ion batteries.
通过简便的助熔剂法，随后进行球磨和气态碳包覆，合成了碳包覆的K0.8Ti1.73Li0.27O4（KTLO）。作为钠离子电池的负极材料，碳包覆的KTLO在20 mA g(-1) 下具有119.6 mA h g(-1) 的可逆比容量，在250次循环后无容量损失，在200 mA g(-1) 下表现出66 mA h g(-1) 的改进倍率性能。研究发现，KTLO的碳包覆不仅提高了其电子导电性，还改善了结构稳定性，证明碳包覆的KTLO是一种有前途的钠离子电池负极材料。
Zotero 插件