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Jie Wang, Prof. Hailei Zhao, Yongna Shen, Zhihong Du, Xiaomin Chen and Qing Xia Structure, Stoichiometry, and Electrochemical Performance of Li2CoTi3O8 as an Anode Material for Lithium-Ion Batteries ChemPlusChem 78

Version of Record online: 2 OCT 2013 | DOI: 10.1002/cplu.201300235

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Less is more: The synthesized nonstoichiometric Li2CoTi2.682O8 exhibits high specific capacity (320 mA h g−1) and excellent rate capability (160 mA h g−1 at 20 C; 1 C corresponds to 300 mA g−1; see figure). The nonstoichiometric material with Ti-site deficiency provides a high theoretical specific capacity and a decreased bandgap for electron conduction, which ensures good electronic conductivity and therefore an excellent rate capability.

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