Li2SiO3@Li4Ti5O12 nanocomposites as anode material for lithium-ion batteries

被引：11

作者：

Wang, Qiufen ^{[1
,2
]}

Lu, Mengwei ^{[1
]}

Miao, Juan ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Phys & Chem, Jiaozuo 454000, Peoples R China

[2] Northwestern Polytech Univ, Sch Sci, Key Lab Space Appl Phys & Chem, Minist Educ, Xian 710129, Peoples R China

来源：

MATERIALS TECHNOLOGY | 2016年 / 31卷 / 08期

关键词：

Nanocomposite; Li2SiO3; Li4Ti5O12; Hydrothermal route; Electrochemical properties; ELECTROCHEMICAL CHARACTERISTICS; SOL-GEL; LI4TI5O12; ELECTRODES; PERFORMANCE; COMPOSITE; MICROSPHERES; MECHANISMS;

D O I：

10.1080/10667857.2015.1105580

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Li2SiO3@Li4Ti5O12 nanocomposites have been synthesized via a hydrothermal route and sintering. The structure, morphology and electrochemical properties of the composites were studied by means of X-ray diffraction, scanning electron microscope, transmission electron microscopy, X-ray photoelectron spectrometer and electrochemical measurements. The Li2SiO3@Li4Ti5O12 nanospheres with an average diameter of 50 nm are connected to each other to form the irregular and particulate matter shape. When 300 mg of silicon is doped, Li2SiO3@Li4Ti5O12 nanocomposites exhibit a high initial discharge capacities (709.5 mA h g(-1)) and reversible capacity (225 mA h g(-1) after 50 cycles) at the current density of 100 mA g(-1) due to the synergy effect between LTO nanosphere and Li2SiO3.

引用

页码：471 / 476

页数：6

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