节点文献

高电导率LiAl_0.3Co_0.7-xMg_xO₂的制备与表征

Synthesis and Characterization of LiAl（0.3）Co_0.7-xMg_xO₂ with High Electrical Conductivity

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 LI Chang, XU Xiao-Guang, MENG Xing, WANG Chun-Zhong, DU Fei, JING Yan, HUANG Gui-Chun, CHEN Gang * (College of Materials Science and Engineering, Key Laboratory of Automobile Materials of Ministry of Education, Jilin University, Changchun 130023, China)

【机构】吉林大学材料科学与工程学院；吉林大学材料科学与工程学院教育部汽车材料重点实验室；长春130023；教育部汽车材料重点实验室；长春130023；

【摘要】用柠檬酸配位聚合法合成了 Li Al0 .3Co0 .7-x Mgx O2 (x=0 .0 1～ 0 .1 3 )粉体 ,并进行了 X射线衍射 (XRD)和透射电子显微镜 (TEM)的表征 .结果发现晶粒粒径都小于 1 μm,且在 x≤ 0 .1 1的范围内 ,材料的 XRD谱峰形锐利 ,表明 80 0℃下材料有良好的结晶性 ,通过对几组衍射峰的标定 ,确定材料保持了六方层状α-Na Fe O2 结构 ,这种结构在充放电过程中为锂离子提供了良好通道更多还原

【Abstract】 A series of LiAl 0.3Co 0.7-xMg_xO₂（x=0.01-0.13） powders were synthesized and characterized by XRD and TEM measurements. The results show that the crystal size is under 1 μm. When x≤0.11, the peaks in the XRD patterns are very sharp which indicate that the materials are well crystallized. After indexing the peaks, it was confirmed that the materials formed an α-NaFeO₂ structure which ensured the lithium ions pass fluently during the charge-discharge process.更多还原