The invention belongs to the technical field of
seawater battery equipment, and in particular relates to a
graphene-
magnesium seawater battery device. The
graphene-
magnesium seawater battery device consist of 1 to n groups of
graphene-
magnesium seawater battery units; the main body structure of each graphene-magnesium seawater battery unit comprises a shell, an upper part water-permeable hole, a
bottom water-permeable hole, a convex cone, a
magnesium alloy anode polar plate, a negative pole
binding post, a graphene
composite cathode polar plate, a positive pole
binding post, an
ion conducting plate grid, an inner seal cover, a
binding post through hole, an outer seal cover, a lead hole, a
voltage-resistant area, a negative pole output lead and a positive pole output lead; based on the technical principle of a fuel battery, the
anode material adopts high-potential and
inert AZ31
magnesium alloy, the
cathode adopts a graphene
composite material with high electrical
conductivity and prominent catalytic reduction efficiency on seawater dissolved
oxygen, and a seawater solution with dissolved
oxygen more than or equal to 5 ppm and
sodium chloride more than or equal to 3.5 percent serves as
electrolyte; the graphene-magnesium seawater battery device is simple in structure, scientific and reasonable in principle, high in
operability, low in cost, friendly in using environment, safe,
environmentally friendly, high in popularization value, and easy to popularize and use.