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Combinatorial exploration of newly pseudo-quintenary layered-type Li-Ni-Co-Fe-Ti oxides

Published online by Cambridge University Press:  03 February 2012

Kenjiro Fujimoto ,
Tomoyuki Kanno ,
Keita Ikezawa ,
Yuichiro Imanari ,
Maiko Sakai ,
Kenji Nakane  and
Shigeru Ito
Kenjiro Fujimoto
Affiliation:
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science Yamazaki 2641, Noda, Chiba 278-8510, Japan
Tomoyuki Kanno
Affiliation:
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science Yamazaki 2641, Noda, Chiba 278-8510, Japan
Keita Ikezawa
Affiliation:
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science Yamazaki 2641, Noda, Chiba 278-8510, Japan
Yuichiro Imanari
Affiliation:
Tsukuba Materials Development Laboratory, Sumitomo Chemical Co., Ltd. Kitahara 6, Tsukuba, Ibaraki 300-3294, Japan
Maiko Sakai
Affiliation:
Tsukuba Materials Development Laboratory, Sumitomo Chemical Co., Ltd. Kitahara 6, Tsukuba, Ibaraki 300-3294, Japan
Kenji Nakane
Affiliation:
Tsukuba Materials Development Laboratory, Sumitomo Chemical Co., Ltd. Kitahara 6, Tsukuba, Ibaraki 300-3294, Japan
Shigeru Ito
Affiliation:
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science Yamazaki 2641, Noda, Chiba 278-8510, Japan
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Abstract

In order to decrease the use of cobalt element as in LiCoO2,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.

Keywords

energetic materialoxidespray deposition
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1425: Symposium UU – Combinatorial and High-Throughput Methods in Materials Science , 2012 , mrsf11-1425-uu04-06
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

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