Uncovering a facile large-scale synthesis of LiNi1/3Co1/3Mn1/3O2 nanoflowers for high power lithium-ion batteries

Authors

W Hua, Sichuan University
Xiao-Dong Guo, Sichuan University
Zhuo Zheng, Sichuan University
Yan-Jie Wang, University of British Columbia
Ben-He Zhong, Sichuan University
Baizeng Fang, University of British Columbia
Jiazhao Wang, University of WollongongFollow
Shulei Chou, University of WollongongFollow
Heng Liu, Sichuan Normal University

RIS ID

96253

Publication Details

Hua, W., Guo, X., Zheng, Z., Wang, Y., Zhong, B., Fang, B., Wang, J., Chou, S. & Liu, H. (2015). Uncovering a facile large-scale synthesis of LiNi_1/3Co_1/3Mn_1/3O₂ nanoflowers for high power lithium-ion batteries. Journal of Power Sources, 275 200-206.

Abstract

Developing advanced electrode materials that deliver high energy at ultra-fast charge and discharge rates are very crucial to meet an increasing large-scale market demand for high power lithium ion batteries (LIBs). A three-dimensional (3D) nanoflower structure is successfully developed in the large-scale synthesis of LiNi_1/3Co_1/3Mn_1/3O₂ material for the first time. The fast co-precipitation is the key technique to prepare the nanoflower structure in our method. After heat treatment, the obtained LiNi_1/3Co_1/3Mn_1/3O₂ nanoflowers (NL333) pronouncedly present a pristine flower-like nano-architecture and provide fast pathways for the transport of Li-ions and electrons. As a cathode material in a LIB, the prepared NL333 electrode demonstrates an outstanding high-rate capability. Particularly, in a narrow voltage range of 2.7-4.3 V, the discharge capacity at an ultra-fast charge-discharge rate (20C) is up to 126 mAh g^-1, which reaches 78% of that at 0.2C, and is much higher than that (i.e., 44.17%) of the traditional bulk LiNi_1/3Co_1/3Mn_1/3O₂.