Three-dimensional fusiform hierarchical micro/nano Li1.2Ni0.2Mn0.6O2 with a preferred orientation (110) plane as a high energy cathode material for lithium-ion batteries

Yu Li, Ying Bai*, Chuan Wu, Ji Qian, Guanghai Chen, Lu Liu, Hui Wang, Xingzhen Zhou, Feng Wu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)

Abstract

Layered Li-rich cathode materials have a series of severe issues which limit their commercialization, such as sharp voltage fading, poor rate performance and bad cycling stability, among which voltage drop is a serious barrier for the successful practical application of Li-rich cathode materials because it will lead to a serious energy fading of batteries. To solve this problem, we design a new-type of three-dimensional fusiform hierarchical micro/nano Li-rich Li1.2Ni0.2Mn0.6O2 cathode material synthesized through a hydrothermal method. The as-prepared sample presents high capacity, superior rate capability and good cycling stability as a cathode material for lithium ion batteries. After 100 cycles at 0.1C, the voltage plateau of this cathode material has almost no decline, and the capacity retention reaches up to 94%. At a high rate of 5C, the initial discharge capacity of the sample is 166.8 mA h g-1. The excellent electrochemical performance can be ascribed to both peculiar architecture and preferred orientation growth of the (110) plane. Therefore, Li1.2Ni0.2Mn0.6O2 with three-dimensional fusiform hierarchical micro/nano morphology and preferred orientation active plane (110) is a promising cathode material for lithium ion batteries.

Original languageEnglish
Pages (from-to)5942-5951
Number of pages10
JournalJournal of Materials Chemistry A
Volume4
Issue number16
DOIs
Publication statusPublished - 28 Apr 2016

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Li, Y., Bai, Y., Wu, C., Qian, J., Chen, G., Liu, L., Wang, H., Zhou, X., & Wu, F. (2016). Three-dimensional fusiform hierarchical micro/nano Li1.2Ni0.2Mn0.6O2 with a preferred orientation (110) plane as a high energy cathode material for lithium-ion batteries. Journal of Materials Chemistry A, 4(16), 5942-5951. https://doi.org/10.1039/c6ta00460a