Magnesia battery under seawater

Abstract

The invention relates to a magnesia battery, in particular to a magnesia battery under seawater. The magnesia battery comprises an oxygen cathode, an anode, a hydrogen peroxide storage tank and an oxygen/water storage tank, wherein the hydrogen peroxide storage tank is placed above the oxygen/water storage tank, and the lower part of the hydrogen peroxide storage tank is connected with the upper part of the oxygen/water storage tank through a pipeline; hydrogen peroxide is filled in the hydrogen peroxide storage tank and can flow into the oxygen/water storage tank through the pipeline under the action of gravity; a partial or total shell of the hydrogen peroxide storage tank is made of flexible material; the middle part or the upper part of the oxygen/water storage tank is provided with a hydrogen peroxide decomposition catalyst layer, and after entering the oxygen/water storage tank, the hydrogen peroxide flows through the hydrogen peroxide decomposition catalyst layer and is decomposed into oxygen and water; the oxygen cathode is arranged on the side wall of the middle upper part and/or the outer wall of the upper end of the oxygen/water storage tank, and the oxygen cathode is communicated with the oxygen/water storage tank; the outside of the oxygen cathode, namely one side away from the oxygen/water storage tank, is provided with the anode; and a gap is reserved between the oxygen cathode and the anode. The magnesia battery has a simple structure and convenient application.

Description

technical field [0001] The invention relates to a magnesium-oxygen battery, in particular to a magnesium-oxygen battery used in seawater. Background technique [0002] In recent years, with the advancement of science and technology, people's understanding of marine resources has been further improved, and marine engineering technology has also made great progress. Marine development has increasingly become an important strategic plan for many countries. Marine remote sensing technology, marine navigation technology, deep-sea detection technology, and marine military technology are all inseparable from power supplies. Due to the particularity and complexity of the actual working conditions under the sea, the current conventional primary batteries and secondary batteries (such as lead-acid batteries, nickel-metal hydride batteries, silver-zinc batteries, lithium-ion batteries, etc.) are difficult to meet the long-life requirements of new underwater equipment. , High-capacity,...

AI Technical Summary

Problems solved by technology

[0010] The Chinese patent with the patent number CN1543001A provides a magnesium seawater battery. This battery uses seawater as the electrolyte and uses dissolved oxygen in seawater as the cathode depolarizer. Although the battery has a simple structure, its cathode efficiency is very low. Moreover, the working current density is small and the cathode area is large, which also limits its application range, and is not suitable for some electrical equipment that requires high power, such as underwater power supplies.

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