Transformation from Monoclinic LiMnO2 to Spinel LixMn2O4 During Electrochemical Cycling

摘要：

　　The monoclinic LiMn0.9Cr0.1O2 irreversibly transforms to spinel-like structure m-LiMnO2 during the electrochemical cycling.Experimental results indicated that the (440) interplanar distance of LixMn2O4 at the charged state increases as the cycle number increases,while the (440) interplanar distance of LixMn2O4 at the discharged state decreases as the cycle number increases.A model for the transformation of monoclinic LiMn0.9Cr0.1O2 to the spinel LiMn2O4 is suggested.According to the suggested model,there may exist two types of s-LixMn2O4 when m-LiMnO2 transforms into s-LixMn2O4.The two types of spinel LixMn2O4 develop the nanodomain.

关键词： Monoclinic LiMnO2 Electrochemistry behavior Spinel-like structure,Nanodomain

作者: y.J.Gu H.Huo Y.B.Chen H.K.Wu X.W.Huang X.B.Liu H.Z.Cui Y.M.Wang Z.N.Yang C.L.Wang

作者单位: College of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 2 Institute of Mechanics,Chinese Academy of Science,Beijing 100080,China College of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 2 New Energy Materials R&D Centre,Qingdao Aucma Co.,Ltd.Qingdao 266510,China Department of Materials Engineering,Jining Technology College,Jining 272013,China;College of Materia

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 270-273

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）