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High Lithium Electroactivity of Nanometer‐Sized Rutile TiO<sub>2</sub>

Yong‐Sheng HuMax-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, GermanyLorenz KienleMax-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, GermanyYu‐Guo GuoMax-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, GermanyJoachim MaierMax-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany

2006en

ABI

Annotatsiya

Nanometer-sized rutile shows much higher electroactivity towards Li insertion than micrometer-sized rutile. Up to 0.8 mol of Li per mole of TiO2 can be inserted into nanometer-sized rutile at room temperature (see figure), which is able to reversibly accommodate Li up to Li0.5TiO2 with excellent capacity retention and high rate capability on cycling, rendering it a promising anode material for high-power lithium-ion batteries.

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Identifikatorlar

DOI: 10.1002/adma.200502723

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