A container type aluminum electrode

Abstract

The invention relates to a container-type aluminum electrode, which includes a container, a pressing plate and a first spring. The top of the container is provided with a top cover for covering the top opening of the container. The top cover is installed on the top wall or the top of the container through a first hinge. On the side wall, the pressure plate is installed on the side wall of the container through the second hinge, the top cover and the pressure plate are installed on the same side of the container, the pressure plate and the top cover are connected by the first spring, and there is a gap between the edge of the pressure plate and the inner wall of the container. There is a gap, and the pressure plate is located in the container, which divides the interior of the container into upper and lower spaces, and the space under the pressure plate is filled with aluminum particles. The invention adopts the collection of aluminum particles loaded in the container as the electrode. When the electrode material is excessively consumed and needs to be replenished, it is only necessary to add aluminum particles to the container. The replenishment of the electrode material and the maintenance of the electrode are simple and convenient. When replenishing the aluminum particles, Just open the top cover, the first spring can drive the pressure plate to open upwards at the same time, and the operation process of replenishing the aluminum particles in the lower space of the pressure plate is convenient and quick.

Description

technical field [0001] The invention relates to an aluminum electrode of an aluminum-air battery, in particular to a container-type aluminum electrode. Background technique [0002] Aluminum-air batteries have a series of advantages such as high specific energy, long life, safety and reliability, and environmental friendliness. The aluminum electrodes of traditional aluminum-air batteries are usually made into plates. Corrosion, the electrode material is gradually consumed and the electrode becomes smaller. When it is not enough to maintain normal operation, it has to be replaced. The replacement or maintenance steps are cumbersome and inconvenient. [0003] In addition, the aluminum electrodes of traditional aluminum-air batteries are mainly made of high-purity aluminum. Aluminum itself is an extremely active metal. When it is exposed to the air, a dense oxide film will be formed on the surface. A layer of oxide film will also be formed during the electrode polarization pr...

AI Technical Summary

Problems solved by technology

[0002] Aluminum-air batteries have a series of advantages such as high specific energy, long life, safety and reliability, and environmental friendliness. The aluminum electrodes of traditional aluminum-air batteries are usually made into plates. Corrosion, the electrode material is gradually consumed, the electrode gradually becomes smaller, and it has to be replaced when it is not enough to maintain normal operation, and its replacement or maintenance steps are cumbersome and inconvenient

[0003] In addition, the aluminum electrodes of traditional aluminum-air batteries are mainly made of high-purity aluminum. Aluminum itself is an extremely active metal. When it is exposed to the air, a dense oxide film will be formed on the surface. A layer of oxide film will also be formed during the electrode polarization process, resulting in the defects of high oxide film resistance and high corrosion rate (usually 76×10 -3 mm / a), weak deoxidation ability (usually <2.6ppm) and weak chemical properties (usually α=1-3) and other defects

In addition, the existing aluminum electrodes are only suitable for using potassium hydroxide (KOH) or sodium hydroxide (NaOH) aqueous solution as the electrolyte. If the low-cost, safe and easy-to-use sodium chloride aqueous solution is used as the electrolyte, it cannot meet the practical needs. Require

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