Preparation and electrochemical properties of nanometer-sized Li2TiO3-LiCrO2 nanocomposite cathode powders by spray pyrolysis

You Na Ko; Yun Chan Kang; Seung Bin Park

Preparation and electrochemical properties of nanometer-sized Li₂TiO₃-LiCrO₂ nanocomposite cathode powders by spray pyrolysis

You Na Ko, Yun Chan Kang, Seung Bin Park

Research output: Contribution to journal › Article › peer-review

Abstract

The nanometer-sized Li₂TiO₃-LiCrO₂ nanocomposite cathode powders are prepared by spray pyrolysis. The existence of Li2CrO4 glass material during post-treatment is essential to prepare the nanometer-sized Li₂TiO₃-LiCrO₂ nanocomposite powders. The Li₂TiO₃-LiCrO₂ nanocomposite powders washed with distilled water have the mixed crystal structure of the rhombohedral LiCrO₂ and the monoclinic Li₂TiO₃ without impurity. The mean size of the nanocomposite powders post-treated at750°C is 130 nm. The initial charge and discharge capacities of the nanocomposite powders post-treated at750°C are 303 and 195 mAh g^-1, respectively. The capacity retention of the nanocomposite powders post-treated at 750°C is 88% after 30cycles.

Original language	English
Pages (from-to)	2504-2514
Number of pages	11
Journal	International Journal of Electrochemical Science
Volume	8
Issue number	2
Publication status	Published - 2013 Feb
Externally published	Yes

ASJC Scopus subject areas

Electrochemistry

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title = "Preparation and electrochemical properties of nanometer-sized Li2TiO3-LiCrO2 nanocomposite cathode powders by spray pyrolysis",

abstract = "The nanometer-sized Li2TiO3-LiCrO2 nanocomposite cathode powders are prepared by spray pyrolysis. The existence of Li2CrO4 glass material during post-treatment is essential to prepare the nanometer-sized Li2TiO3-LiCrO2 nanocomposite powders. The Li2TiO3-LiCrO2 nanocomposite powders washed with distilled water have the mixed crystal structure of the rhombohedral LiCrO2 and the monoclinic Li2TiO3 without impurity. The mean size of the nanocomposite powders post-treated at750°C is 130 nm. The initial charge and discharge capacities of the nanocomposite powders post-treated at750°C are 303 and 195 mAh g-1, respectively. The capacity retention of the nanocomposite powders post-treated at 750°C is 88% after 30cycles.",

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AU - Ko, You Na

AU - Kang, Yun Chan

AU - Park, Seung Bin

PY - 2013/2

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N2 - The nanometer-sized Li2TiO3-LiCrO2 nanocomposite cathode powders are prepared by spray pyrolysis. The existence of Li2CrO4 glass material during post-treatment is essential to prepare the nanometer-sized Li2TiO3-LiCrO2 nanocomposite powders. The Li2TiO3-LiCrO2 nanocomposite powders washed with distilled water have the mixed crystal structure of the rhombohedral LiCrO2 and the monoclinic Li2TiO3 without impurity. The mean size of the nanocomposite powders post-treated at750°C is 130 nm. The initial charge and discharge capacities of the nanocomposite powders post-treated at750°C are 303 and 195 mAh g-1, respectively. The capacity retention of the nanocomposite powders post-treated at 750°C is 88% after 30cycles.

AB - The nanometer-sized Li2TiO3-LiCrO2 nanocomposite cathode powders are prepared by spray pyrolysis. The existence of Li2CrO4 glass material during post-treatment is essential to prepare the nanometer-sized Li2TiO3-LiCrO2 nanocomposite powders. The Li2TiO3-LiCrO2 nanocomposite powders washed with distilled water have the mixed crystal structure of the rhombohedral LiCrO2 and the monoclinic Li2TiO3 without impurity. The mean size of the nanocomposite powders post-treated at750°C is 130 nm. The initial charge and discharge capacities of the nanocomposite powders post-treated at750°C are 303 and 195 mAh g-1, respectively. The capacity retention of the nanocomposite powders post-treated at 750°C is 88% after 30cycles.

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Preparation and electrochemical properties of nanometer-sized Li₂TiO₃-LiCrO₂ nanocomposite cathode powders by spray pyrolysis

Abstract

ASJC Scopus subject areas

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