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

doi:10.1016/j.ceramint.2015.05.043

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

Division of Process and System Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The phase-selective synthesis of (Li_1.81H_0.19)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 (Li_1.81H_0.19)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.

Original language	English
Pages (from-to)	10988-10994
Number of pages	7
Journal	Ceramics International
Volume	41
Issue number	9
DOIs	https://doi.org/10.1016/j.ceramint.2015.05.043
Publication status	Published - 2015 Nov 1

Keywords

A. Powders: Chemical preparation
A. Shaping
D. Titanates
E. Batteries

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.ceramint.2015.05.043

Cite this

@article{e27b45d5c56a4c839d87422a2ca53bef,

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

abstract = "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.",

keywords = "A. Powders: Chemical preparation, A. Shaping, D. Titanates, E. Batteries",

author = "Takeshi Kimijima and Kiyoshi Kanie and Yusuke Tsujikawa and Masafumi Nakaya and Nobuyuki Zettsu and Katsuya Teshima and Atsushi Muramatsu",

year = "2015",

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doi = "10.1016/j.ceramint.2015.05.043",

language = "English",

volume = "41",

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journal = "Ceramics International",

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T1 - Phase-selective hydrothermal synthesis of hydrous lithium titanates nanoparticles as a precursor to Li4Ti5O12 anode material for lithium ion rechargeable batteries

AU - Kimijima, Takeshi

AU - Kanie, Kiyoshi

AU - Tsujikawa, Yusuke

AU - Nakaya, Masafumi

AU - Zettsu, Nobuyuki

AU - Teshima, Katsuya

AU - Muramatsu, Atsushi

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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.

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KW - E. Batteries

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