Graphene-containing lead alloy for lead storage battery grids, and preparation method thereof
A lead-acid battery and graphene technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems that lead alloy factories cannot achieve, the reduction reaction time is long, and it is difficult to popularize production, so as to enhance the performance of charge and discharge and cycle life, the effect of solving the decline in electrical conductivity and not easy to deform
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[0014] Example 1, a lead alloy for grids of lead-acid batteries containing graphene, by weight, it contains 0.015% graphene, 1.0% tin, 0.02% aluminum, 0.05% sponge calcium and 98.915% lead . The preparation method includes the following steps: (1) Put 2 / 3 of the amount of electrolytic lead into the molten lead pot, and heat it to 680°C until the electrolytic lead is completely melted; (2) Then turn on the centrifugal mixer to remove the The amount of graphene is added slowly and continuously or intermittently added in batches to the lead liquid under the condition of medium speed stirring; (3) 20 minutes later, add the amount of pure tin and pure aluminum, and the centrifugal mixer continues Stir and mix for more than half an hour; (4) Turn off the centrifugal mixer, add the amount of sponge calcium encapsulated in lead skin, press the calcium sponge encapsulated in lead skin into the bottom of the lead liquid with a bell jar with a leak at the bottom, and add The sponge calci...
Example Embodiment
[0015] Example 2, a lead alloy for grids of lead-acid batteries containing graphene, calculated by weight percentage, contains 0.03% graphene, 1.2% tin, 0.04% aluminum, 0.08% sponge calcium and 98.65% lead. The preparation method includes the following steps: (1) Put 2 / 3 of the amount of electrolytic lead into the molten lead pot, and heat it to 680°C until the electrolytic lead is completely melted; (2) Then turn on the centrifugal mixer to remove the The amount of graphene is added slowly and continuously or intermittently added in batches to the lead liquid under the condition of medium speed stirring; (3) 20 minutes later, add the amount of pure tin and pure aluminum, and the centrifugal mixer continues Stir and mix for more than half an hour; (4) Turn off the centrifugal mixer, add the amount of sponge calcium encapsulated in lead skin, press the calcium sponge encapsulated in lead skin into the bottom of the lead liquid with a bell jar with a leak at the bottom, and add ...
Example Embodiment
[0016] Example 3, a lead alloy for grids of lead-acid batteries containing graphene, calculated by weight percentage, contains 0.06% of graphene, 1.2% of tin, 0.04% of aluminum, 0.1% of sponge calcium and 98.6% of lead. The preparation method includes the following steps: (1) Put 2 / 3 of the amount of electrolytic lead into the molten lead pot, and heat it to 680°C until the electrolytic lead is completely melted; (2) Then turn on the centrifugal mixer to remove the The amount of graphene is added slowly and continuously or intermittently added in batches to the lead liquid under the condition of medium speed stirring; (3) 20 minutes later, add the amount of pure tin and pure aluminum, and the centrifugal mixer continues Stir and mix for more than half an hour; (4) Turn off the centrifugal mixer, add the amount of sponge calcium encapsulated in lead skin, press the calcium sponge encapsulated in lead skin into the bottom of the lead liquid with a bell jar with a leak at the bott...
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