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Citation: Su Yue-Feng, Wu Feng, Chen Chao-Feng. Preparation of Li₄Ti₅O₁₂ from Nanocrystalline TiO₂ and It’s Lithiation Performance[J]. Acta Physico-Chimica Sinica, ;2004, 20(07): 707-711. doi: 10.3866/PKU.WHXB20040708 shu

Preparation of Li₄Ti₅O₁₂ from Nanocrystalline TiO₂ and It’s Lithiation Performance

1.
School of Chemical Engineering ＆ Environment, Beijing Institute of Technology, Beijing　100081; Laboratory of National Development Center of Hi-Technology Green Materials, Beijing　100081

Received Date: 17 November 2003
Available Online: 15 July 2004

Three lithium titanium composite oxides were prepared from different TiO2, and the electrochemical performance of the composite oxides was tested. The results proved that, Li4Ti5O12 prepared from nanocrystalline titanium dioxide showed a od lithiation performance. The reversible capacity of the material was more than 95 mA•h•g－1, the charge-discharge efficiency was almost 100％ and the cyclic performance was od. When the lithium intercalation≥85％ or the lithium extraction≥90％, its charge potential or discharge potential would change quickly. This Li4Ti5O12 is od candidate material of negative electrode for lithium-ion battery.
- Nanocrystalline TiO₂;Heat-treating;Li₄Ti₅O₁₂;Lithiation inserting performance
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation of Li4Ti5O12 from Nanocrystalline TiO2 and It’s Lithiation Performance

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通讯作者: 陈斌, bchen63@163.com

Preparation of Li₄Ti₅O₁₂ from Nanocrystalline TiO₂ and It’s Lithiation Performance