Size effect of lithium peroxide on charging performance of Li-O2 batteries.
We report herein that the particle size of Li2O2, which is the discharged product of a Li-O2 battery, remarkably influences the charging performance. As the particle size decreases, the average voltage of charge plateaus is lowered due to reduced electrode polarization and enhanced kinetics of the oxidation reaction of Li2O2.
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China. fycheng@nankai.edu.cn.
Yuxiang
Y
Hu
Xiaopeng
X
Han
Fangyi
F
Cheng
Qing
Q
Zhao
Zhe
Z
Hu
Jun
J
Chen
D011211:Electric Power Supplies; D055664:Electrochemical Techniques; D004566:Electrodes; D007700:Kinetics; D008094:Lithium / Q000737:chemistry*; D010084:Oxidation-Reduction; D010316:Particle Size; D010545:Peroxides / Q000737:chemistry*
D010545:Peroxides; D008094:Lithium