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Titanium-Doped Nickel-Rich Layered LiNi0.8Co0.2O2 as High-Performance Cathode Material for Lithium-Ion Batteries by Xiaohong Zhang; Mingcan Wang; Jiayuan Shi; Xiaotao Chen; Fuliang Liu; Bin Shi is a scholarly article available to read on EtoBox.

What is Titanium-Doped Nickel-Rich Layered LiNi0.8Co0.2O2 as High-Performance Cathode Material for Lithium-Ion Batteries about?

LiNi 0.8 Co 0.2-x Ti x O 2 cathode materials with different titanium (Ti) contents have been prepared from Ni 0.8 Co 0.2-x Ti x (OH) 2 (0 ≤ x ≤ 0.05) precursors. Phase and morphology analyses indicated that the products were microspheres in space group R3m assembled from smaller secondary particles. Phase and elemental analyses indicated more serious cation mixing in the layered materials obtained with Ti doping. The LiNi 0.8 Co 0.2-x Ti x O 2 material with x = 0.0125 showed optimal electrochemical performance with improved cycling performance (capacity retention ratio of 95.8% after 100 cycles) and high rate capability (162 mAh g -1 at 2C). Therefore, Ti doping can be considered an efficient approach to improve the electrochemical properties of such cathode materials.

Author

Xiaohong Zhang; Mingcan Wang; Jiayuan Shi; Xiaotao Chen; Fuliang Liu; Bin Shi

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN