Synthesis and electrochemical properties of Li₄Ti₅O₁₂/C nano-powders by pulse jet spray pyrolysis

• FURUKAWA Yasuhiko

  Graduate School of Engineering, Advanced Interdisciplinary Science and Technology, University of Fukui

• OGIHARA Takashi

  Graduate School of Engineering, Advanced Interdisciplinary Science and Technology, University of Fukui

• KODERA Takayuki

  Graduate School of Material Science and Engineering, University of Fukui

抄録

Li₄Ti₅O₁₂/C nano-powders were successfully synthesized at 500°C through the pulse jet spray pyrolysis with use of a citric acid aqueous solution. As-prepared Li₄Ti₅O₁₂/C nano-particles had spherical and irregular shapes with an average size of 50 nm. As-prepared Li₄Ti₅O₁₂/C nano-particles had a spinel phase with high crystallinity and a homogeneous chemical composition. The carbon content was 10 wt % in the Li₄Ti₅O₁₂ nano-powders. A 2032 type coin cell was used to examine electrochemical properties of the Li₄Ti₅O₁₂/C anode. The discharge capacity of Li₄Ti₅O₁₂/C anode exhibited 170 at 1 C and 120 mAh·g⁻¹ at 20 C, respectively. The discharge capacity of the Li₄Ti₅O₁₂/C anode maintained 96% of the initial discharge capacity after 500th cycle at 10 C and room temperature. The discharge capacity of the Li₄Ti₅O₁₂/C anode exhibited 160 mAh·g⁻¹ at 10 C and 50°C and maintained 98% of the initial discharge capacity after 100th cycle.

収録刊行物

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 124 (5), 613-616, 2016

  公益社団法人 日本セラミックス協会

キーワード

• Lithium ion battery
• Anode
• Spray pyrolysis
• Lithium titanate
• Nano-powders

詳細情報

• CRID: 1390001205287795968
• NII論文ID: 130005149947
• DOI: 10.2109/jcersj2.15308
• ISSN: 13486535
• ISSN: 18820743
• Web Site: https://www.jstage.jst.go.jp/article/jcersj2/124/5/124_15308/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可