Positive plate used for lead-acid storage battery and preparation method of positive plate
A technology of lead-acid battery and positive plate, applied in the direction of lead-acid battery electrodes, electrode carriers/collectors, etc., can solve the problems of poor overall comprehensive performance, frequent daily maintenance, short service life, etc., and achieve deep charge and discharge cycles and discharge stability, long cycle charge and discharge life, and long service life
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[0040] The positive plate used in the lead-acid battery in this embodiment includes an alloy grid and lead-acid layers covering both sides of the alloy grid, the thickness of the alloy grid is 2.4mm, and the thickness of the lead-acid layer is 0.15mm. The alloy grid is prepared from the following components in weight percentage: 0.1% calcium, 0.8% tin, 0.03% aluminum, and the rest is lead. The lead-acid layer is mainly prepared from the following components in parts by weight: 1000±1.0 parts of lead powder, 105±0.5 parts of water, 1.4g / cm 3 96.00±0.2 parts of sulfuric acid.
[0041] The preparation method of the above-mentioned positive plate specifically comprises the following steps:
[0042] (1) Alloy grid casting: carried out in the automatic grid casting machine, put the lead ingot into the lead melting pot of the automatic grid casting machine, heat up to 450°C to melt the lead ingot, and keep the liquid color of the lead liquid as silvery white, Described lead ingot c...
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