材料科学
高分辨率透射电子显微镜
锂(药物)
纳米结构
扫描电子显微镜
纳米化学
化学工程
纳米颗粒
透射电子显微镜
纳米技术
纳米线
钛酸锂
锂离子电池
复合材料
功率(物理)
内分泌学
工程类
电池(电)
物理
医学
量子力学
作者
Duk Kyu Lee,Hyungwon Shim,Jae Sul An,Chin Moo Cho,In Sun Cho,Kug Sun Hong,Dong Wan Kim
标识
DOI:10.1007/s11671-010-9680-4
摘要
The 0D-1D Lithium titanate (Li(4)Ti(5)O(12)) heterogeneous nanostructures were synthesized through the solvothermal reaction using lithium hydroxide monohydrate (Li(OH)·H(2)O) and protonated trititanate (H(2)Ti(3)O(7)) nanowires as the templates in an ethanol/water mixed solvent with subsequent heat treatment. A scanning electron microscope (SEM) and a high resolution transmission electron microscope (HRTEM) were used to reveal that the Li(4)Ti(5)O(12) powders had 0D-1D heterogeneous nanostructures with nanoparticles (0D) on the surface of wires (1D). The composition of the mixed solvents and the volume ratio of ethanol modulated the primary particle size of the Li(4)Ti(5)O(12) nanoparticles. The Li(4)Ti(5)O(12) heterogeneous nanostructures exhibited good capacity retention of 125 mAh/g after 500 cycles at 1C and a superior high-rate performance of 114 mAh/g at 20C.
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