Emergency metal seawater battery applied to sea surface

Abstract

The invention relates to an emergency power supply, in particular to a metal / seawater battery. The battery has the characteristics of a metal / water battery and a metal / air battery at the same time; and the battery mainly comprises double-function cathodes, an alloy anode, diaphragms and a battery shell. The battery structure is of a sandwich configuration, wherein one anode is clamped by two cathodes, electrodes are separated by the diaphragms, and the battery shell is of a hollow structure. According to the battery, the advantages of the metal / water battery and the metal / air battery are combined effectively; when the battery floats on the sea surface, the dual-mode discharging of the metal / air battery and the metal / water battery is adopted; when the battery is fully immersed with seawater, the metal / water battery mode is adopted for discharging; by virtue of the dual-mode battery, a complex working environment of the sea surface can be handled. The battery is long in storage life, high in stability, high in mass specific energy and simple in structure, and is an ideal sea surface emergency power supply.

Description

technical field [0001] The invention belongs to the technical field of electrochemical power sources, and in particular relates to a magnesium alloy or aluminum alloy anode, a cathode with an oxygen reduction active transition metal oxide or a noble metal catalyst loaded on a nickel foam substrate with hydrogen evolution catalytic activity, and An emergency metal / seawater battery with seawater or oxygen in air as the cathode fuel. Background technique [0002] The marine emergency device is the guarantee for the safety of personnel at sea. The positioning and rescue system can effectively reduce the time and difficulty of search and rescue, and improve the success rate of search and rescue. The power supply of the positioning and emergency system is the guarantee of its normal operation. The power supply with long storage life, good stability, high safety, high specific energy and low cost is one of the core components of the system. [0003] Metal / air batteries, especially...

AI Technical Summary

Problems solved by technology

Magnesium or aluminum / air batteries can directly use seawater as the electrolyte, that is, seawater is activated, and the storage life of the non-activated state is as long as more than 20 years, and the battery has good safety, high specific energy and low cost, but the metal / air battery cathode cannot Completely submerged in seawater, otherwise the battery will not work properly

The sea surface environment is complex, it is difficult to ensure that the battery will not be submerged in seawater, which reduces the stability of the battery and limits the use of the battery

The magnesium / water battery directly uses seawater as the cathode fuel. When the battery cathode is submerged by seawater, the magnesium / water battery discharges normally, which can effectively solve the problem of the battery being completely flooded; however, the traditional metal / air battery cathode is difficult to meet the requirements of hydrogen evolution.

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