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We have studied Li intercalation into two nanoparticulate anode materials for lithium ion batteries, namely Nb-doped TiO2 (Nb-TiO2) and Li4Ti5O12 (LTO), by means of scan rate-dependent cyclic voltammetry. The average particle size is 7nm for Nb-TiO2 and 6nm for LTO, respectively. For both materials, we observe a transition in the scan rate dependence of the charge flow, namely from Li intercalation...
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