A General and Mild Approach to Controllable Preparation of Manganese-Based Micro- and Nanostructured Bars for High Performance Lithium-Ion Batteries

Guo Ma, Sheng Li, Weixin Zhang, Zeheng Yang, Shulin Liu, Xiaoming Fan, Fei Chen, Yuan Tian, Weibo Zhang, Shihe Yang, Mei Li

Research output: Contribution to journalArticle (Academic Journal)

64 Citations (Scopus)

Abstract

One-dimensional (1D) micro- and nanostructured electrode materials with controllable phase and composition are appealing materials for use in lithium-ion batteries with high energy and power densities, but they are challenging to prepare. Herein, a novel ethanol–water mediated co-precipitation method by a chimie douce route (synthesis conducted under mild conditions) has been exploited to selectively prepare an extensive series of manganese-based electrode materials, manifesting the considerable generalizability and efficacy of the method. Moreover, by simply tuning the mixed solvent and reagents, transition metal oxide bars with differing aspect ratios and compositions were prepared with an unprecedented uniformity. Application prospects are demonstrated by Li-rich 0.5 Li2MnO3⋅0.5 LiNi1/3Co1/3Mn1/3O2 bars, which demonstrate excellent reversible capacity and rate capability thanks to the steerable nature of the synthesis and material quality. This work opens a new route to 1D micro- and nanostructured materials by customizing the precipitating solvent to orchestrate the crystallization process.
Original languageEnglish
Pages (from-to)3667–3671
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number11
Early online date16 Feb 2016
DOIs
Publication statusPublished - 7 Mar 2016

Keywords

  • chimie douce approach electrode materials lithium-ion batteries manganese-based micro- and nanostructured bars

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