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EnglishViews: 3 Author: Site Editor Publish Time: 2021-01-05 Origin: Site
A magnesium seawater fuel cell system developed by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences (HEREINAFTER referred to as the "Dalian Compounds Institute") has successfully completed a sea test in a water depth of 3,000 meters, realizing the first practical application of the new magnesium seawater fuel cell in deep-sea equipment.
The new type of magnesium seawater fuel cell is an electrochemical device that directly uses seawater and converts the chemical energy of magnesium into electric energy. It has the advantages of high energy density, good safety, and can work in the whole sea depth. It has a good application prospect in the field of Marine equipment such as deep-sea lander and deep-sea in-situ experimental station.
According to The Dalian Institute of Chemical Industry, the battery system has made breakthroughs in key technologies such as high-efficiency alloy anode preparation technology, long-life cathode preparation technology, ocean-wide depth buoyancy adjustment technology and combined energy management technology to carry out the deep-sea sea test.
In this offshore test, the submersible consists of the Luling deep-sea multi-site lander, The Sea Deer rover, and a new magnesium seawater fuel cell and integrated energy system. Magnesium seawater fuel cell system provides energy for lander and submersible, realizing multi-stage high efficiency charging and power supply. The maximum working depth of magnesium seawater fuel cell is 3,252 meters, the cumulative working time is 24.5 hours, and the accumulative power supply for the system reaches 3.4 kilowatt hours, which fully verifies the deep-sea power supply capacity and long-term discharge stability of the new magnesium seawater fuel cell.
The project is supported by the Deep-sea Multi-site Lander and Rover Submersible System Research project, a key project of the State Key Research and development program "Key Technologies and Equipment in deep Sea" under the Ministry of Science and Technology of China.
