Hierarchically porous Li4Ti5O12 anode materials for Li- and Na-ion batteries: Effects of nanoarchitectural design and temperature dependence of the rate capability

Joji Hasegawa, Kazuyoshi Kanamori, Tsutomu Kiyomura, Hiroki Kurata, Kazuki Nakanishi, Takeshi Abe

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Integrated design of both porous structure and crystalline morphology is expected to open up the way to a new class of materials. This report demonstrates new nanostructured Li4Ti5O12 materials with hierarchically porous structures and flower-like morphologies. Electrochemical studies of the electrodes of Li-ion and Na-ion batteries clearly reveal the advantage of nanoarchitectural design of active materials. In addition, the temperature dependence of Na+-insertion/extraction capacity in relation to Li4Ti5O12 electrodes is for the first time evaluated and it is found that elevation of the cell operating temperature effectively improves the rate capability of the Na-ion batteries. Based on the new findings, it is suggested that specially designed Li4Ti5O12 materials allow for high-performance Na-ion batteries that are available as large-scale storage devices for applications such as automotive and stationary energy storage.

Original languageEnglish
Article number1400730
JournalAdvanced Energy Materials
Volume5
Issue number1
DOIs
Publication statusPublished - Jan 1 2015
Externally publishedYes

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Anodes
Ions
Temperature
Electrodes
Nanostructured materials
Energy storage
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Hierarchically porous Li4Ti5O12 anode materials for Li- and Na-ion batteries : Effects of nanoarchitectural design and temperature dependence of the rate capability. / Hasegawa, Joji; Kanamori, Kazuyoshi; Kiyomura, Tsutomu; Kurata, Hiroki; Nakanishi, Kazuki; Abe, Takeshi.

In: Advanced Energy Materials, Vol. 5, No. 1, 1400730, 01.01.2015.

Research output: Contribution to journalArticle

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