Phase-selective hydrothermal synthesis of hydrous lithium titanates nanoparticles as a precursor to Li4Ti5O12 anode material for lithium ion rechargeable batteries

Takeshi Kimijima, Kiyoshi Kanie, Yusuke Tsujikawa, Masafumi Nakaya, Nobuyuki Zettsu, Katsuya Teshima, Atsushi Muramatsu

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The phase-selective synthesis of (Li1.81H0.19)Ti2O5·2H2O flakes and homogenous LiTiO2 spheres has been achieved by means of a hydrothermal method using a titanium–triethanolamine complex. Compared with other Ti sources this offers the advantage of being more stable in water, though the crystal phases obtained depend on the growth conditions used, such as the initial Li/Ti ratio and aging time. The (Li1.81H0.19)Ti2O5·2H2O flakes were obtained through aging at 250 °C for 3 h from an initial Li/Ti ratio of 1.0 and exhibited a large surface area of 135 m2 g−1. Subsequent heat treatment of these flakes yielded Li4Ti5O12 nanoparticles with an even larger surface area (141 m2 g−1) and a discharge capacity of 164 mA h g−1, making them suited for use as an active material in lithium-ion rechargeable batteries.

本文言語English
ページ(範囲)10988-10994
ページ数7
ジャーナルCeramics International
41
9
DOI
出版ステータスPublished - 2015 11 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • プロセス化学およびプロセス工学
  • 表面、皮膜および薄膜
  • 材料化学

フィンガープリント

「Phase-selective hydrothermal synthesis of hydrous lithium titanates nanoparticles as a precursor to Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> anode material for lithium ion rechargeable batteries」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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