A graphene-magnesium seawater battery device

Abstract

The invention belongs to the technical field of seawater battery equipment, and specifically relates to a graphene-magnesium seawater battery device, which is composed of 1-n groups of graphene-magnesium seawater battery units. The main structure of the graphene-magnesium seawater battery unit includes a shell, an upper part Permeable hole, bottom permeable hole, raised cone, magnesium alloy anode plate, negative terminal, graphene composite cathode plate, positive terminal, ion guide grid, inner cover, terminal through hole, outer cover, Lead hole, pressure zone, negative output wire and positive output wire, based on the technical principle of fuel cell, the anode material adopts high-potential and inert AZ31 magnesium alloy, and the cathode adopts AZ31 magnesium alloy with good conductivity and outstanding catalytic reduction efficiency for seawater dissolved oxygen. Graphene composite material, with dissolved oxygen ≥ 5ppm and sodium chloride ≥ 3.5% seawater solution as electrolyte; its structure is simple, the principle is scientific and reasonable, operability is strong, the cost is low, the use environment is friendly, safe and environmentally friendly, the promotion value is high, and it is easy to use Promotional use.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of seawater battery equipment, and relates to a graphene-magnesium seawater battery device, in particular to a unit combined seawater battery with a graphene composite material as a cathode, a magnesium alloy material as an anode, and seawater as an electrolyte. [0003] Background technique: [0004] With the in-depth development of people's marine scientific research and marine resource development activities, marine equipment such as marine monitoring, marine engineering, marine military activities, marine lifesaving and submersibles, especially marine deep-water exploration and resource development and production activities, have put forward urgent demands on power supplies. Relying on shore power transmission, ship power supply or rechargeable battery power supply with great limitations is far from meeting the increasingly prominent requirements of marine activities, which greatly limits people's ...

AI Technical Summary

Problems solved by technology

[0004] With the in-depth development of people's marine scientific research and marine resource development activities, marine equipment such as marine monitoring, marine engineering, marine military activities, marine lifesaving and submersibles, especially marine deep-water exploration and resource development and production activities, have put forward urgent demands on power supplies. Relying on shore power transmission, ship power supply or rechargeable battery power supply with great limitations is far from meeting the increasingly prominent requirements of marine activities, which greatly limits people's in-depth development and marine scientific research and production activities. For many years, people have been seeking to manufacture a relatively long-lasting independent power source that is suitable for marine activities, and seawater batteries with broad prospects for use have emerged as the times require.

Scientists have successively invented silver chloride seawater batteries, aluminum seawater batteries and zinc seawater batteries, etc., all of which are difficult to popularize because of expensive materials or irreversible technical defects

Magnesium has the characteristics of high potential, light weight, good physical and chemical properties, and low processing cost. In particular, magnesium alloy materials are recognized as the best anode material for seawater batteries. Therefore, using magnesium alloy materials as anodes for seawater batteries has low cost. , technologically accessible and environmentally friendly; however, magnesium alloys corrode too quickly in seawater, causing the plate to loosen and fall off, short service life, and the accumulation of corrosion products will cause self-discharge or short-circuit of the battery. These objective defects belong to the reachable range that subjective technology can easily overcome

The cathode of the magnesium seawater battery in the prior art generally uses inert conductive materials such as graphite, carbon steel or copper alloy, and its current density is generally 2 , low catalytic efficiency, slow reaction speed, and poor stability for seawater dissolved oxygen reduction, seriously inhibiting the generation of electric energy, and greatly restricting the development and application of seawater batteries

Images