|
Abstract LiCoO2 ceramics were synthesized by solid state reaction. An internal friction peak of phase transition type was observed around 170 K for LiCoO2 ceramics via dynamic mechanical analysis (DMA) in the temperature range of 123-573 K, which corresponds to the turning point in the plot of the logarithm of conductivity versus the inverse of temperature (ln σ-1/T). It shows that the phase transition at 170 K could change the electronic transport property and the activation energy doubles in the high temperature portion in LiCoO2 .
|
|
Received: 01 March 2009
Published: 31 May 2010
|
|
|
|
|
|
