Metal oxygen battery

摘要

There is provided a metal oxygen battery which is capable of obtaining superior batter capacity when starting use from charging. In the metal oxygen battery 1 including a positive electrode 2, which includes an oxygen-storing material and lithium oxide, and uses oxygen as an active substance, a negative electrode 3 capable of absorbing and discharging lithium ions, and an electrolyte layer 4 interposed between the positive electrode 2 and the negative electrode 3, in which the positive electrode 2, the negative electrode 3, and the electrolyte layer 4 are hermetically accommodated in a case 5, the oxygen-storing material has an oxygen amount stored at a start of charge time diluted.

主权项

1. A metal oxygen battery comprising:
a positive electrode comprising an oxygen-storing material and lithium oxide, and which uses oxygen as an active substance; a solid negative electrode which is capable of absorbing and discharging lithium ions; an electrolyte layer interposed between the positive electrode and the negative electrode, and a hermetically sealed housing accommodating the positive electrode, the negative electrode, and the electrolyte layer; wherein the oxygen-storing material has a function of occluding and releasing oxygen and also a function of adsorbing and desorbing oxygen on and from a surface thereof without receiving light beam has an oxygen amount more than 0 mmol/g and less than or equal to 6 mmol/g at a start of charge time, and the oxygen-storing material is a composite metal oxide comprising Y and Mn; wherein the positive electrode has a positive electrode current collector located on its top surface and directly contacting with a top surface of the housing, the negative electrode has a negative electrode current collector located on its bottom surface and directly contacting with a bottom surface of the housing, the positive electrode directly contacts with each of the positive electrode collector, the electrolyte layer and an inner peripheral surface of the housing at each of a top surface, a bottom surface, and a peripheral surface thereof, and the negative electrode directly contacts with each of the negative electrode collector, the electrolyte layer and the inner peripheral surface of the housing at each of a bottom surface, a top surface, and a peripheral surface thereof.