Metal electrode activation method for oxygen-metal battery

A metal battery and metal electrode technology, which is applied in the repair/maintenance of fuel cell half-cells, primary battery half-cells, and secondary batteries, to achieve the effects of increasing discharge power, reducing corrosion losses, and reducing side reactions
CN105024104AActive Publication Date: 2015-11-04BEIHANG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2015-11-04

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Abstract

The invention relates to a metal electrode activation method for an oxygen-metal battery. By forcedly oxidizing a substrate, the volume of the substrate is expanded, and the stress is increased to lead the substrate to peel off. According to the metal electrode activation method, oxygen content in an electrolyte is increased by increasing oxygen partial pressure on an electrolyte level, oxygenating microbubbles and through stirring and oxygenating modes; oxygen is diffused and penetrates through a compact oxygen membrane of a metal electrode under the driving of oxygen concentration and fluid pressure of the electrolyte, enters the oxygen membrane and is combined with metal to generate an oxide, the volume of the metal after combined with the oxygen through diffusion is expanded, the hard and brittle oxygen membrane is broken and peeled off due to stress, and the metal substrate is exposed, therefore, the purpose of metal electrode activation before battery discharging is achieved.
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Description

technical field

[0001] The invention relates to a novel activation method based on an oxygen-metal battery, which can effectively activate a metal electrode and improve the performance of the electrode. The oxygen-metal batteries here comprise air batteries. Background technique

[0002] The emergence of batteries has greatly facilitated the power supply for outdoor operations. People have successively developed batteries such as lead storage batteries, nickel-metal hydride storage batteries, lithium-ion batteries, polymer lithium batteries, and fuel cells. But because they have more or less problems such as "low voltage, unsuitable for excessive discharge, unfriendly environment, scarce raw materials, high price, high dependence on infrastructure, unsafe, and fewer cycles".

[0003] Oxygen-metal batteries are a way of generating electricity by utilizing the chemical energy generated by the oxidation of metals. The overall reaction is the reaction of metals and oxygen to fo...

Claims

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