Abstract
High-rate lithium intercalation properties of reassembled titanate nanosheets prepared by various exfoliation/reassembly processes were examined. Titanate nanosheets were obtained by exfoliation of tetratitanate with layered structure. Reassembled titanate nanosheets were prepared by reassembly of the colloidal suspensions of tetratitanate nanosheets with various dispersing media. Reassembled titanate nanosheets using methanol as dispersing media exhibited a reversible capacity of 170 mAh g-1 at relatively small current density, and a large capacity of 140 mAh g-1 at a current density of 1 A g-1. Reassembled titanate nanosheets using methanol as dispersing media showed a superior high-rate capability to that using water as dispersing media.
