Lead acid battery grid and preparation method thereof
A technology of lead-acid batteries and grids, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of low mechanical strength, small specific surface area, and easy corrosion and deformation of grids, and achieve high mechanical strength, large specific surface area, and durability. Corrosion performance strong effect
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[0043] In addition, the present invention also provides a kind of preparation method of lead-acid storage battery grid, comprises the following steps:
[0044] (1) Take the graphene paper, cut it into a grid-like structure, and make the graphene grid body;
[0045] (2) The graphene grid body is stacked on the cathodes of the two polar plates, and the lead plate is used as the anode of the two polar plates, and a lead fluoroborate solution with a lead ion concentration of 110-130 g / L is added to the electrolytic cell, and then Fluoboric acid, boric acid and peptone were added to the lead fluoroborate solution, at 25~35mA / cm 2 Electrodeposition at a current density of 0.5 to 5 hours. After the electrolysis, the graphene grid body is taken out, cleaned and dried to obtain a graphene grid body with a lead layer deposited;
[0046] (3) Superimpose the graphene grid body with the lead layer deposited on the anode of the bipolar plate, use graphite as the cathode of the bipolar plat...
Embodiment 1
[0061] A preparation method for a lead-acid storage battery grid, comprising the steps of:
[0062] (1) Take 0.5g of graphene and place it in 1L of deionized water, and disperse it ultrasonically for 1 hour to obtain a graphene suspension with a concentration of 0.5g / L, and filter the graphene suspension with a microporous membrane under vacuum conditions , forming a graphene layer; the microporous filter membrane with the graphene layer is put into an oven, dried at 40° C. for 1 hour, and then the graphene layer is peeled off from the microporous filter membrane to obtain a 100 μm thickness. Graphene paper, the obtained graphene paper is mechanically cut into a grid-like structure with a hexagonal grid to obtain a graphene grid body.
[0063] (2) Superimpose the graphene grid body prepared in step (1) on the cathode of the two-polar plate, use the lead plate as the anode of the two-polar plate, and control the distance between the cathode and the anode of the two-polar plate ...
Embodiment 2
[0068] A preparation method for a lead-acid storage battery grid, comprising the steps of:
[0069] (1) Take 1 g of graphene and place it in 1 L of deionized water, and disperse it ultrasonically for 1 hour to obtain a graphene suspension with a concentration of 1 g / L, and filter the graphene suspension with a microporous membrane under vacuum conditions to form Graphene layer; the microporous filter membrane with the graphene layer is put into an oven, dried at 35° C. for 2 hours, and then the graphene layer is peeled off from the microporous filter membrane to obtain graphene with a thickness of 50 μm Paper, mechanically cut the obtained graphene paper into a grid-like structure with a hexagonal grid to obtain a graphene grid body.
[0070] (2) Superimpose the graphene grid body prepared in step (1) on the cathode of the bipolar plate, use the lead plate as the anode of the bipolar plate, and control the distance between the cathode and the anode of the bipolar plate to be 2...
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Abstract
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