Spinel oxide cathode material for high power lithium ion batteries for electrical vehicles

Authors

Xi Ke, Guangdong University of Technology
Zhuozhuo Zhao, Guangdong University of Technology
Jun Liu, Guangdong University of TechnologyFollow
Liying Liu, Guangdong University of Technology
Zhicong Shi, Guangdong University of Technology
Yunyong Li, Guangdong University of Technology
Lingyu Zhang, Guangdong University of Technology
Haiyan Zhang, Guangdong University of Technology
Zaiping Guo, University of WollongongFollow

RIS ID

111577

Publication Details

Ke, X., Zhao, Z., Liu, J., Liu, L., Shi, Z., Li, Y., Zhang, L., Zhang, H. & Guo, Z. (2016). Spinel oxide cathode material for high power lithium ion batteries for electrical vehicles. Energy Procedia, 88 689-692. Energy Procedia

Abstract

Electrical Vehicles (EVs) are very important in reducing fossil oil consumption and carbon emission in cities. Spinel LiNi_0.5Mn_1.5O₄ is one promising cathode material for lithium ion batteries used in EVs owing to its high power density. Here AlF₃ coated LiNi_0.5Mn_1.5O₄ is prepared through an newly developed method. The spinel oxide sintered at 900 ̊C presents the best electrochemical performance with a specific discharge capacity of 132.4 mAh/g at 0.5 C. 81.0% of the initial specific capacity can be retained after 50 cycles. AlF₃ coating can further improve the electrochemical performance. The initial specific capacity at 10 C is enhanced from 104.6 to 109.1 mAh g^-1 with the capacities retention increasing from 80.6 to 92.1% after 100 cycles.