Patent ID: 8835061
Filing Date: 2014-09-16
Classification: H01M,Y02E

Abstract:
1. A metal oxygen battery, comprising: a positive electrode to which oxygen is applied as an active substance; a negative electrode to which metallic lithium is applied as an active substance; and an electrolyte layer interposed between the positive electrode and the negative electrode, wherein the positive electrode, the negative electrode and the electrolyte layer are disposed in a hermetically sealed case, and wherein the positive electrode comprises, as an oxygen-storing material, a composite metal oxide obtained by crushing and mixing a yttrium salt, a manganese salt and an organic acid to obtain a mixture, primarily calcining the mixture to obtain a primarily calcined material, and thereafter, adding a zirconium salt to the obtained primarily calcined material in an amount in a range of 1 to 20% by mass of the total amount of the primarily calcined material, and secondarily calcining the mixture, the composite metal oxide comprising YMnO