Journal of Power Sources Article in Press, Accepted Manuscript - Note to users doi:10.1016/j.jpowsour.2011.02.071 | How to Cite or Link Using DOI Copyright 2011 Published by Elsevier B.V. Permissions Reprints The effect of alkalinity and temperature on the performance of lithium-air fuel cell with hybrid electrolytes Ping He a , Yonggang Wang a and Haoshen Zhou , a , a Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, 305-8568, Japan Received 27 October 2010; revised 21 February 2011; accepted 22 February 2011. Available online 26 February 2011. Abstract A lithium-air fuel cell combined an air cathode in aqueous electrolyte with a metallic lithium anode in organic electrolyte can continuously reduce O2 to provide capacity. Herein, the performance of this hybrid electrolyte based lithium-air fuel cell under the mixed control of alkalinity and temperature have been investigated by means of galvanistatic measurement and the analysis of electrochemical impedance spectra. Electromotive force and inner resistance of the cell decrease with the increase of LiOH concentration in aqueous electrolyte. The values ranged from 0.5 to 1.0M could be the suitable parameters for the LiOH concentration of aqueous electrolyte. Environment temperature exhibited a significant influence on the performance of lithium-air fuel cell. The Lithium-air fuel cell can provide a larger power at elevated temperature due to the decrease of all resistance of elements. Keywords: Lithium-air fuel cell; Lithium super ionic conductor glass; Electrochemical performance; Galvanistatic measurement; Electrochemical impedance spectra.