X. Liu*
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W.H. Tian
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null
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null
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null
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金属学报(英文版)
Chemical delithiated LixCoO2 (x=1, 0.7, 0.66 and 0.57) has been synthesized by using a strong oxidant, NaS2O8. The structure investigations indicate that all the samples remain with hexagonal cells, which have expansion of c axis during Li extraction. Transmission electron microscopy (TEM) observations revealed the presence of superstructures arising from intercalated Li-ordering corresponding to first-principle calculations. The measurements of the physical properties are also influenced by Li concentration.
关键词:
LixCoO2
,
脱锂
,
锂离子有序
