2012年
Combinatorial exploration of newly pseudo-quintenary layered-type Li-Ni-Co-Fe-Ti oxides
Materials Research Society Symposium Proceedings
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- 巻
- 1425
- 号
- 開始ページ
- 52
- 終了ページ
- 58
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1557/opl.2012.205
In order to decrease the use of cobalt element as in LiCoO 2,which is mainly used for cathode materials in lithium ion secondary batteries, a newly pseudo-quintenary layered-type Fe-doped Li-Ni-Co-Ti oxides library was created using the combinatorial technology "M-ist Combi system" based on the electrostatic spray deposition method. The starting materials used were LiNO3, Ni(NO3)2· 6H2O, Co(NO3)2·6H2O, Fe(NO3)3·-9H2O and TiO2 nano-slurry. These materials were dissolved or dispersed in a mixture of ethanol and butyl carbitol and mixed in a predefined ratio, respectively. Subsequently, each of the mixtures was sprayed and dried on a grounded reaction plate that was heated to 400°C. The deposited powder was sintered at 700°C for 5 hours in air atmosphere. Phase identification of the obtained powder library was evaluated by a combinatorial powder x-ray diffractometer. A reaction phase diagram was established from the structure information and chemical composition by ICP-AES measurement. From all results, single-phase layered-type compounds showed the composition region that included many Co and Ni elements. On the other hand, single phase spinel-type compounds existed in the Ti-rich composition region. © 2012 Materials Research Society.
- リンク情報
- ID情報
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- DOI : 10.1557/opl.2012.205
- ISSN : 0272-9172
- SCOPUS ID : 84879329418