Li_4Ti_5O_(12)晶体16c位八面体几何特征和锂离子运动方向  

16 c octahedral geometry characteristics and lithium-ion motion direction in Li_4Ti_5O_(12) crystal structure

作　　者：谷亦杰[1,2] 陈蕴博[3] 刘洪权[1] 王延敏[1] 孙杰 

机构地区：[1]山东科技大学材料学院,山东青岛266510 [2]宜春市人民政府,江西宜春366000 [3]机械科学研究总院先进制造技术研究中心,北京100044 [4]江西省福斯特新能源有限公司,江西宜春366000

出　　处：《电源技术》2013年第12期2116-2117,共2页Chinese Journal of Power Sources

基　　金：山东省自然科学基金(ZR2010EM036);山东省博士基金(BS2011CL031);青岛科技发展计划(12-1-4-6-(11)-jch);"863"项目(2009AA11A106)

摘　　要：固相法合成Li4Ti5O12晶体。采用X射线衍射法(XRD)对合成Li4Ti5O12的结构进行研究,发现在Li4Ti5O12中16 c位锂氧八面体发生扭曲,锂氧八面体中12条棱边长度不相同,两组棱边每组各6条,其中一组棱边长度0.326 04 nm,另一组棱边长度为0.296 27 nm。由于Li4Ti5O12晶体16 c位锂氧八面体发生扭曲,锂离子在Li4Ti5O12晶体运动方向选择性运动。Li4Ti5O12 was prepared by solid state reaction. Li4Ti5O12 crystalline structure was studied by XRD. The research shows that the 16 c oxygen octahedron shape with lithium in Li4Ti5O12 is distorted. The twelve edge length of the octahedron is different. The different length edges of the octahedren is separated into two groups, one of which has six edges and the length of edge is 0.326 04 nm, another of which has six edges and the length of edge is 0.296 27 nm. Due to Li4Ti5O12 crystal 16 c lithium-oxygen octahedron distorted, the lithium-ion movement direction is the selective movement in Li4Ti5O12.

关 键 词：Li4Ti5O12晶体 锂氧八面体的几何形状 锂离子运动方向 

分 类 号：TM912[电气工程—电力电子与电力传动]