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Magnesium sea water battery

A seawater battery and seawater technology, applied in the direction of submerged batteries, electrodes of primary batteries, delayed action cells, etc., can solve the problems of short working hours and unsuitable maritime equipment for long-term work, and achieve simple equipment, reduce the cost of marine equipment and Low running cost and low self-corrosion effect

Inactive Publication Date: 2004-11-03
李华伦 +3
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AI Technical Summary

Problems solved by technology

[0010] The above seawater batteries include the processing, manufacturing and replacement of materials and positive electrodes, and the cost still accounts for a large proportion of the battery cost. In particular, the working hours of the above seawater batteries are generally relatively short. Not suitable

Method used

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  • Magnesium sea water battery

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Embodiment Construction

[0020] The magnesium alloy anode (1) of the magnesium seawater battery can choose a low-alloyed alloy containing a certain amount of manganese, such as magnesium, magnesium-manganese alloy, AZ21, AZ31, AM10A, etc., and the above-mentioned alloys are preferably high-purity. The elements Fe, Co, Ni, Cu, etc. that can catalyze the precipitation should be strictly limited. The shape adopts a round rod, and the length of the round rod is roughly equivalent to the length of the cathode. The magnesium alloy anode (1) can be produced by casting or extruding. There is a steel core in the center, and the end of the steel core protrudes as the battery negative terminal (5).

[0021] The inert cathode (2) of the magnesium seawater battery can be made of copper alloy, carbon steel, stainless steel and graphite, and the surface of the inert cathode (2) is better treated with oxygen reduction catalyzed substances. In order to prevent microorganisms and marine organisms from attaching, the i...

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Abstract

This invention relates to a Mg sea-water cell based on the fuel cell technology theory which converts the dissolved oxygen in the sea to a cathode active substance by inert cathode, takes the sea water as the cell electrolyte and applies high potential Mg alloy as the anode to make it an independent chemical cell after immerging it in the sea. The cell only consumes Mg alloy anode when working and changes a new one after the Mg alloy anode is finished. The cell can work for a long time at a reliable and stable situation since the cell has a large capacity not necessary to have any pressure container, one Mg alloy anode can work continuously for 1-2 years, especially suitable for the work in the deep sea or the bottom.

Description

technical field [0001] The invention relates to a chemical power source, in particular to a chemical power source that uses seawater as an electrolyte, dissolved oxygen in the seawater as a cathode active material, and oxidation and dissolution of a magnesium alloy to form a battery. Background technique [0002] Seawater occupies about seven-tenths of the Earth's surface. In recent years, ocean development has received great attention. Ocean engineering, ocean military, seabed exploration and research all require power supplies, especially for equipment that works in the deep sea or on the seabed for a long time. It is often necessary to anchor all the equipment to the seabed. The power required by the equipment, Generally, it is provided by cables from the sea, or by lithium batteries, alkaline batteries, zinc-oxygen batteries, etc. sealed in pressure-resistant containers. The deep sea has particularly high requirements on the pressure vessel. Sometimes, in order to preve...

Claims

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Application Information

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IPC IPC(8): H01M4/06H01M6/34
CPCY02E60/12
Inventor 李华伦黄育宏李书伟杨仲可
Owner 李华伦
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