SPINEL VERSUS LAYERED STRUCTURES FOR LITHIUM COBALT OXIDE SYNTHESIZED AT 400-DEGREES-C
SPINEL VERSUS LAYERED STRUCTURES FOR LITHIUM COBALT OXIDE SYNTHESIZED AT 400-DEGREES-C
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DOI：
10.1016/0025-5408(93)90157-9
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发表时间：
1993-03-01
影响因子：
5.4
通讯作者：
THACKERAY, MM
中科院分区：
文献类型：
--
作者：
GUMMOW, RJ;LILES, DC;THACKERAY, MM
Rietveld精修的X射线数据的LiCoO2制备在400 ℃和化学脱锂的产品Li0.5CoO2使用空间群对称性R3mBAR和Fd3m的报告。R3mBAR（层状结构）和Fd3m（尖晶石型结构）的改进给出了与数据相当的拟合。这种结构的异常进行了讨论的细化和获得的电化学数据时，锂从LiCoO2在非水电池在室温下提取。优选LixCoO2的尖晶石相关模型（0.5 ≤ x ≤ 1）。
Rietveld refinements of X-ray data of LiCoO2 prepared at 400-degrees-C and a chemically-delithiated product Li0.5CoO2 using space group symmetries R3mBAR and Fd3m are reported. Refinements in both R3mBAR (layered-type structure) and Fd3m (spinel-type structure) give comparable fits to the data. This structural anomaly is discussed in terms of the refinements and electrochemical data obtained when lithium is extracted from LiCoO2 in non-aqueous cells at room temperature. A spinel-related model for LixCoO2 (0.5 less-than-or-equal-to x less-than-or-equal-to 1) is preferred.