Undersea magnesium oxygen battery

Abstract

Relating magnesium oxygen batteries, the invention specifically relates to an undersea magnesium oxygen battery, which comprises oxygen negative electrodes, positive electrodes, a hydrogen peroxide storage tank, and an oxygen / water storage tank. The hydrogen peroxide storage tank is placed inside the oxygen / water storage tank, and the lower part of the hydrogen peroxide storage tank is in connection with the upper part of the oxygen / water storage tank through horizontal and vertical channel pipelines. The hydrogen peroxide storage tank is filled with hydrogen peroxide, which flows into a horizontal channel by depending on gravity and flows upward along vertical channels under the effect of seawater pressure into the oxygen / water storage tank through upper end openings of the channels. The housing of the hydrogen peroxide storage tank is prepared with a flexible material. The middle part or upper part of the oxygen / water storage tank is provided with a hydrogen peroxide decomposition catalyst layer, through which the hydrogen peroxide flows after penetrating into the oxygen / water storage tank for decomposing into oxygen and water. The oxygen negative electrodes are disposed on a sidewall at the middle and upper part and / or an outer wall at the upper end of the oxygen / water storage tank. The oxygen negative electrodes are communicated with the oxygen / water storage tank. The positive electrodes are mounted outside the oxygen negative electrodes, i.e. at a side far from the oxygen / water storage tank, and gaps are reserved between the oxygen negative electrodes and the positive electrodes. The battery of the invention has the advantages of simple structure, small volume, 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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