A positive plate for large-capacity battery, preparation method and large-capacity battery
A positive plate, battery technology, applied in battery electrodes, lead-acid battery electrodes, electrode carriers/current collectors, etc. The effect of fast capacity, excellent deep discharge performance and strong starting ability
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Embodiment 1
[0046] 1. Positive grid production:
[0047] The content of each component of the positive grid is: 1.2wt% tin; 0.05wt% calcium; 0.01wt% aluminum; 0.3wt% antimony; 0.03wt% iridium; The grid adopts punched plate or cast plate.
[0048] Negative grid production:
[0049] The content of each component of the negative grid is 1.2wt% tin Sn; 0.03wt% calcium Ca, and the balance is lead. The negative grid adopts stamped or cast pole plates.
[0050] 2. Production of positive lead paste:
[0051] The content of each component of the positive lead paste: magnesium lead acid 0.1kg; stannous sulfate 0.1kg; poly-1-butene 0.1kg; 4BS seed crystal 0.1kg; dilute sulfuric acid) 9kg (density 1.4g / cm 3 ); 10kg of pure water; the balance is lead powder with an oxidation degree of 71-73%.
[0052] And paste process:
[0053] (1) Mix the formula polyolefin and sodium perborate and stir, keep the temperature, and stir at a high speed of 2500r / min for 60min, then cool to normal temperature for us...
Embodiment 2
[0078] Only the differences from the above-mentioned embodiment 1 will be described below.
[0079] In this embodiment, the components of the positive grid are: 1.5wt% tin; 0.07wt% calcium; 0.02wt% aluminum; 0.5wt% antimony; 0.05wt% iridium;
[0080] The content of each component of the positive lead paste: magnesium lead acid 0.1kg; stannous sulfate 0.1kg; polybutene 0.1kg; 4BS seed crystal 0.1kg; sodium perborate 0.01kg; Density 1.4g / cm 3 ); 10kg of pure water; the balance is lead powder with an oxidation degree of 71-73%.
[0081] In this embodiment, the thickness of the tabs and the grid of the positive plate is 0.7 mm, the thickness of the positive plate is 1.2 mm; the thickness of the thick glass fiber layer is 0.3 mm, the thickness of the fine glass fiber layer is 0.3 mm, and the thickness of the PE layer is 0.2 mm. The thickness is 0.8mm, and the compression ratio is 20%.
Embodiment 3
[0083] Only the differences from the above-mentioned embodiment 1 will be described below.
[0084] In this embodiment, the contents of each component of the positive grid are: 1.2wt% tin; 0.05wt% calcium; 0.01wt% aluminum; 0.3wt% antimony; 0.03wt% iridium;
[0085] The content of each component of the positive lead paste: magnesium lead acid 0.3kg; stannous sulfate 0.3kg; polybutene 0.3kg; 4BS seed crystal 0.3kg; sodium perborate 0.03kg; Density 1.4g / cm 3 ); 12kg of pure water; the balance is lead powder with an oxidation degree of 71-73%.
[0086] In this embodiment, the thickness of the tabs and the grid of the positive plate is 0.75 mm, the thickness of the positive plate is 1.2 mm; the thickness of the thick glass fiber layer is 0.3 mm, the thickness of the fine glass fiber layer is 0.2 mm, and the thickness of the PE layer is 0.2 mm. The thickness is 0.7mm, and the compression ratio is 20%.
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