| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium air secondary battery small in a voltage difference between charge and discharge and low in deterioration of discharge capacity even after repeated charge/discharge cycles.SOLUTION: A lithium air secondary battery according to the present invention includes an air electrode, a negative electrode and an electrolyte in contact with the air electrode and the negative electrode. The air electrode includes a conductive material and a catalyst, and the catalyst of the air electrode includes a phosphide. In the present invention, the phosphide favorably includes metal selected from among Fe, Ni, Cr, Mn, Co, Cu, Zn, Ti or V. |
