2010年8月
Microstructure and electrochemical properties of the HT-LiCoO2/La2/3-xLi3xTiO3 solid electrolyte interfaces
JOURNAL OF MATERIALS RESEARCH
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- 巻
- 25
- 号
- 8
- 開始ページ
- 1583
- 終了ページ
- 1587
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1557/JMR.2010.0203
- 出版者・発行元
- CAMBRIDGE UNIV PRESS
Three different types of HT-LiCoO2/lithium lanthanum titanate (LLT) assemblies were produced by depositing an HT-LiCoO2 cathode on polycrystalline LLT with various surface finishes, to investigate the effects of the HT-LiCoO2/LLT interface structure on the electrochemical properties of the assemblies. An amorphous layer is confirmed to he introduced by Ar ion irradiation to crystalline LLT. The HT-LiCoO2/LLT assembly composed of the ion-irradiated LLT exhibits good cycle stability and relatively low apparent interface resistivity. These results indicate that the introduction of an amorphous LLT layer by surface modification of crystalline LLT is very effective in improving the structural stability and lithium-ion conductivity of the interface between HT-LiCoO2 and crystalline LLT.
- リンク情報
- ID情報
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- DOI : 10.1557/JMR.2010.0203
- ISSN : 0884-2914
- Web of Science ID : WOS:000280447400023