The influence of surface morphology on the lithium‐ion battery performance of TiO2, a safer anode material than graphite, has been investigated. We demonstrate that (001)‐faceted TiO2 nanosheets display better electrochemical energy storage performance, higher charge/discharge rates, larger capacity, and improved stability over spherical TiO2 nanoparticles. The improvement is attributed to the smaller charge diffusion resistance in the TiO2 nanosheets as a result of increased lithium‐ion insertion/extraction along the c‐axis during the charge/discharge process for the (001)‐faceted TiO2 nanosheets in comparison to spherical TiO2 nanoparticles.
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Wang et al. (2014) studied this question.
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