Solid Chemical Reaction by Microwave Heating for the Synthesis of LiFePO4 Cathode Material
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- UEMATSU Kazuyoshi
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
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- OCHIAI Ayumi
- Graduate School of Science and Technology, Niigata University
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- TODA Kenji
- Graduate School of Science and Technology, Niigata University
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- SATO Mineo
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University
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LiFePO4 has been synthesized using FeC2O4•2H2O, LiOH•H2O and NH4H2PO4 as raw materials by a temperature controllable microwave heating oven. The products were characterized by X-ray diffraction, scanning electron microscope and electrochemical methods. Measurement of dielectric properties of individual raw materials and products at a constant microwave frequency revealed that the starting mixture preheated at 320°C as well as added acetylene black were well microwave absorbers. Single phase olivin-type LiFePO4 with uniform and fine particle sizes was successfully synthesized by microwave heating at 350°C in 15 min. The LiFePO4 cathode materials thus obtained had a higher discharge capacity and better cycle performance than those of the LiFePO4 sample by a conventional solid-state reaction.<br>
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 115 (1343), 450-454, 2007
公益社団法人 日本セラミックス協会
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詳細情報
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- CRID
- 1390282680254475264
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- NII論文ID
- 110006317678
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- NII書誌ID
- AN10040326
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- COI
- 1:CAS:528:DC%2BD2sXot1Wns7c%3D
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- ISSN
- 18821022
- 09145400
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- HANDLE
- 10191/26486
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- NDL書誌ID
- 8882280
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 使用不可