title: Nanoscale coating of LiMO2 (M = Ni, Co, Mn) nanobelts with Li+-conductive Li2TiO3: toward better rate capabilities for Li-ion batteries.
abstract: By using a novel coating approach based on the reaction between MC(2)O(4)·xH(2)O and Ti(OC(4)H(9))(4), a series of nanoscale Li(2)TiO(3)-coated LiMO(2) nanobelts with varied Ni, Co, and Mn contents was prepared for the first time. The complete, thin Li(2)TiO(3) coating layer strongly adheres to the host material and has a 3D diffusion path for Li(+) ions. It is doped with Ni(2+) and Co(3+) ions in addition to Ti(4+) in LiMO(2), both of which were found to favor Li(+)-ion transfer at the interface. As a result, the coated nanobelts show improved rate, cycling, and thermal capabilities when used as the cathode for Li-ion battery.
authors.affiliation: Department of Chemistry, State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084.
authors.forename: Jun
authors.initials: J
authors.lastname: Lu
authors.forename: Qing
authors.initials: Q
authors.lastname: Peng
authors.forename: Weiyang
authors.initials: W
authors.lastname: Wang
authors.forename: Caiyun
authors.initials: C
authors.lastname: Nan
authors.forename: Lihong
authors.initials: L
authors.lastname: Li
authors.forename: Yadong
authors.initials: Y
authors.lastname: Li