Issue 16, 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

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 gāˆ’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.

Graphical abstract: 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

Supplementary files

Article information

Article type
Paper
Submitted
17 Jan 2016
Accepted
20 Mar 2016
First published
21 Mar 2016

J. Mater. Chem. A, 2016,4, 5942-5951

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

Y. Li, Y. Bai, C. Wu, J. Qian, G. Chen, L. Liu, H. Wang, X. Zhou and F. Wu, J. Mater. Chem. A, 2016, 4, 5942 DOI: 10.1039/C6TA00460A

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