title: A general strategy to construct uniform carbon-coated spinel LiMn2O4 nanowires for ultrafast rechargeable lithium-ion batteries with a long cycle life.
abstract: Control over one-dimensional growth of spinel-type LiMn2O4 nanowires is challenging in the area of materials science due to their cubic crystal structure. The current strategy is to use a self-support template to fabricate LiMn2O4 nanowires, which is time-consuming and limits their large-scale commercial production. In this paper, we propose a general strategy to construct well-defined LiMn2O4 nanowires terminated with amorphous carbon at the edges by an ingenious method without using any template. Benefited from its unique carbon-coated nanowire structure, the electrode exhibits a capacitor-like rate performance and battery-like high capacity for long-time cycling. Even after 1500 cycles at an extremely high current density of 30 C, approximately 82% of its initial capacity can still be retained. Significantly, the strategy reported here will be beneficial and revelatory to manufacture other extensive one-dimensional robust carbon-decorated nanowires, paving new ways for future developments of ultrafast rechargeable lithium-ion batteries.
authors.affiliation: School of Physics and Technology, Key Laboratory of Artificial Micro and Nano-structure of Ministry of Education, Wuhan University, Wuhan, China. gssyhx@whu.edu.cn xzzhao@whu.edu.cn.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Sun
authors.forename: Huiqin
authors.initials: H
authors.lastname: Liu
authors.forename: Yumin
authors.initials: Y
authors.lastname: Liu
authors.forename: Gongxun
authors.initials: G
authors.lastname: Bai
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Shishang
authors.initials: S
authors.lastname: Guo
authors.forename: Xing-Zhong
authors.initials: XZ
authors.lastname: Zhao