A high-power lead-acid battery pole group and its manufacturing method
A technology of lead-acid battery and manufacturing method, which is applied in the direction of lead-acid battery, lead-acid battery construction, final product manufacturing, etc. It can solve problems such as lack of maintenance conditions, corrosion of battery lugs, and harsh use environment, and delay softening The effect of shedding process, prolonging battery life and avoiding plate lug corrosion
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Embodiment 1
[0031] Embodiment 1 is a basic embodiment of this manufacturing method, comprises the following steps:
[0032] 1) Encapsulation of the positive plate 1: put the lug sheath of the positive plate 1 on the lug of the positive plate 1, use a woven polyester bag with a thickness of 0.10mm, and seal it with a heat-sealing process with a heat-melting temperature of 250°C. The melting time is 10s, the heat sealing time is 10s, and the air pressure is 0.3MPa.
[0033] 2) Lay plate: Place negative plate 2, PE separator 3, packaged positive plate 1, and PE separator 3 in order. The lugs of positive plate 1 and negative plate 2 should be staggered. Ears are in the same direction. Lock after the swing plate is finished. The thickness of the PE separator 3 is 0.20mm, and the resistance is 0.25Ω·cm 2 , The porosity is 50%; the upper bottom of the trapezoidal lug reinforcement part 7 is 2mm, the lower bottom is 5mm, and the height is 10mm.
Embodiment 2
[0037] Embodiment 2 is the embodiment further optimized on the basis of embodiment 1, further than embodiment 1 is:
[0038] In step 1), the positive electrode plate 1 is packaged in a non-woven polyester bag with a thickness of 0.30 mm. It is sealed by heat sealing process, the heat melting temperature is 275°C, the heat melting time is 15s, the heat sealing time is 15s, and the air pressure is 0.35MPa.
[0039] Step 2) In the middle of the swing plate, the thickness of the PE separator 3 is 0.60mm, and the resistance is 0.30Ω•cm 2 , The porosity is 60%; the upper bottom of the trapezoidal ear reinforcement 7 is 6mm, the lower bottom is 10mm, and the height is 15mm.
[0040] The solder in step 3) is a lead-antimony alloy with an antimony content of 4%.
[0041] In step 4), the pressure casting process is used to cast the epoxy material, the thickness of the lug outer cladding 8 is 10mm, and the height is 20mm.
Embodiment 3
[0043] Embodiment 3 is a preferred embodiment on the basis of Embodiment 2.
[0044] The packaging of the positive plate 1 in step 1) is sealed by ultrasonic welding. Turn on the power supply and air valve, preset the value of the welding mold barometer to 0.3MPa, and preset the welding time and pressure holding time to 1s.
[0045] Step 2) In the middle of the swing plate, the thickness of the PE separator 3 is 1.0mm, and the resistance is 0.35Ω•cm 2 , The porosity is 65%; the upper bottom of the trapezoidal lug reinforcement 7 is 10mm, the lower bottom is 12mm, and the height is 20mm.
[0046] The welding solder in step 3) is a lead-tin alloy with a tin content of 6%.
[0047] In step 4), the pressure casting process is used to cast the epoxy material, the thickness of the lug outer cladding 8 is 10mm, and the height is 20mm.
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Abstract
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