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- Title
Binary Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-Li<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> Nanocomposite as an Anode Material for Li-Ion Batteries.
- Authors
Zhu, Guan ‐ Nan; ChEN, Long; Wang, Yong ‐ Gang; Wang, Con ‐ Xiao; Che, REN ‐ Chao; Xia, Yong ‐ Yao
- Abstract
Li4Ti5O12 typically shows a flat charge/discharge curve, which usually leads to difficulty in the voltage-based state of charge (SOC) estimation. In this study, a facile quench-assisted solid-state method is used to prepare a highly crystalline binary Li4Ti5O12-Li2Ti3O7 nanocomposite. While Li4Ti5O12 exhibits a sudden voltage rise/drop near the end of its charge/discharge curve, this binary nanocomposite has a tunable sloped voltage profile. The nanocomposite exhibits a unique lamellar morphology consisting of interconnected nanograins of ≈20 nm size with a hierarchical nanoporous structure, contributing to an enhanced rate capability with a capacity of 128 mA h g−1 at a high C-rate of 10 C, and excellent cycling stability.
- Publication
Advanced Functional Materials, 2013, Vol 23, Issue 5, p640
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.201201741