Surface modification of Li2ZnTi3O8 with the C&N layer for lithium-ion batteries

被引：9
|
作者：
Chen, Chi [1 ]
Li, Zhuye [1 ]
Xu, Baoming [1 ]
机构：
[1] Hubei Univ Technol, Sch Mat & Chem Engn, Wuhan 430068, Hubei, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2020年 / 245卷
关键词：
Lithium-ion batteries; Li2ZnTi3O8; C&N layer; Electronic conductivity; Electrochemical performance; ZINC TITANATE ANODE; LONG CYCLE LIFE; DOPED CARBON; ELECTROCHEMICAL PERFORMANCE; RATE CAPABILITY; IN-SITU; NITROGEN; NANOCOMPOSITE; NANOPARTICLES; LI2MNTI3O8;
D O I：
10.1016/j.matchemphys.2020.122718
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The C&N coated Li2ZnTi3O8 is synthesized by heat-treating pristine Li2ZnTi3O8 and urea (CO(NH2)(2)) at 400 degrees C for a short time. The content of the C&N layer of the C&N coated Li2ZnTi3O8 is similar to 3.5 wt% and the N content of 2.06 wt% is achieved. After coupling with a C&N layer, the C&N coated Li2ZnTi3O8 delivers a discharge specific capacity of 230.1, 211.9, 197.4, 190.6 and 180.4 mAh g(-1) after 10 cycles at the current density of 0.1, 0.5, 1.5, 2.5 and 4.0 A g(-1), respectively, and exhibits a remarkable stability over 400 cycles at 1.5 A g(-1). The effect of the formed C&N layer on the structure and electrochemical properties of the C&N coated Li2ZnTi3O8 has been characterized by a series of means.
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页数：8
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