Wang Xiong, Zhu Juanjuan, Liu Yingjie
Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
J Nanosci Nanotechnol. 2009 Nov;9(11):6518-22. doi: 10.1166/jnn.2009.1326.
As a promising candidate cathode material, spinel lithium manganese oxide nanoparticles were successfully synthesized through a novel molten salt synthesis route at relatively low temperature, using manganese dioxide nanowires as precursor. A variety of techniques were applied to characterize the spinel nanomaterial, including X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy, and X-ray photoelectron spectroscopy. The average particle size of the resulting spinel nanoparticles was about 80 nm with narrow distribution. As cathode material for rechargeable lithium ion battery, the electrochemical properties were investigated. All the results show that the electrochemical performances of the homogeneous spinel nanoparticles were improved, which might be ascribed to large specific surface area, fairly narrow size distribution, and the unique synthesis strategy.
作为一种有前景的候选阴极材料，以二氧化锰纳米线为前驱体，通过一种新型的低温熔盐合成路线成功合成了尖晶石锂锰氧化物纳米颗粒。采用了多种技术对尖晶石纳米材料进行表征，包括X射线衍射、透射电子显微镜、场发射扫描电子显微镜和X射线光电子能谱。所得尖晶石纳米颗粒的平均粒径约为80nm，分布狭窄。作为可充电锂离子电池的阴极材料，对其电化学性能进行了研究。所有结果表明，均匀的尖晶石纳米颗粒的电化学性能得到了改善，这可能归因于大的比表面积、相当窄的尺寸分布以及独特的合成策略。
