Author(s)

Ming Song^*, Jing Peng, Xiang Yu

College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, China.

Among all the issues that restrict the application of Li-air battery, poor power performances of O₂ cathode comes first. In this paper, we establish carbon (Super P)/LiM_xO_y (LiMn₂O₄/LiFePO₄/LiNi_1/3Co_1/3Mn_1/3O₂) hybrid cathode to promote the power output of conventional carbon cathode through continuous Li⁺-insertion reaction of LiM_xO_y and Li⁺ transportation in bulk LiM_xO_y during the discharging process. Weight and volume specific power performances of the hybrid cathode are much higher than those of traditional Super P carbon cathode. The mechanism of improving power performance of O₂ cathode has also been discussed through electrochemical impedance spectroscopy and cyclic voltammetry method in this paper.

Power Performance, Li-O₂ Battery, Hybrid Cathode

Song, M. , Peng, J. and Yu, X. (2017) A High Power Carbon/LiM_xO_y Hybrid Cathode for Non-Aqueous Li-O₂ Battery. Advances in Materials Physics and Chemistry, 7, 364-374. doi: 10.4236/ampc.2017.710029.