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Composition for manufacturing polar plate of lead acid storage battery
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A lead-acid battery and composition technology, applied in lead-acid battery electrodes, lead-acid batteries, battery electrodes, etc., can solve the problems of environmental pollution, large power consumption, and high cost
Inactive Publication Date: 2010-10-06
赵恒祥 +1
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In the above-mentioned method for processing glass fibers, a specific crucible needs to be prepared when melting the glass, and the above-mentioned process consumes a lot of electricity, so the cost is high, and it is easy to cause environmental pollution during the melting process
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[0041] A preparation method for preparing lead-acid battery pole plates provided by the present invention comprises: mixing lead powder and fiber additive to obtain a mixture, the weight percentage of the lead powder and cellulose additive being 85% to 95%: 5% to 15% , the fiber powder additive includes by weight percentage: 4% to 10% of glass fiber powder and 80% to 90% of battery plate lead paste powder;
[0042] stirring the mixture with water and sulfuric acid to obtain a slurry;
[0043] The slurry is coated on the substrate, and then subjected to aging, drying and chemical conversion treatment to obtain battery pole plates.
[0044] The expressions of the preferred embodiments of the lead powder, fiber additives, glass fiber, and lead paste in the composition are all applicable to the embodiments of the lead powder, fiber additives, glass fiber powder, and lead paste powder in the preparation method, The present invention will not go into details for this.
[0051] Take the glass fiber waste and pulverize it to obtain glass fiber powder with a particle size of 200 μm to 300 μm. The glass fiber powder includes: 65% SiO in weight percentage 2 , 15% Al 2 o 3 , 9% Na 2 O, 5% ZnO, 3% MgO, 3% B 2 o 3 .
[0052] Take the waste battery lead paste and pulverize it until the lead paste powder with a particle size of 200 μm to 300 μm is obtained. The lead paste powder includes 0.4% anisotropic graphite, 0.1% polypropylene fiber, and 10% PbSO 4 , the lead powder of surplus, the oxidation degree of described waste lead plaster powder is 78%, and apparent density is 4.3g / cm 3 .
[0053] Take 5 parts by weight of the fiber powder and 95 parts by weight of waste battery lead paste powder and mix them as a fiber powder additive for later use.
Embodiment 2
[0055] Get 900kg lead powder, the fiber powder additive that 100kg embodiment 1 prepares and mix, add 100kg water and 120kg density be 1.28g / cm 3 The dilute sulfuric acid is stirred to obtain an apparent density of 4.2g / cm 3 paste, i.e. lead paste;
[0056] Smear the lead paste on the lead alloy positive grid respectively, ripen, dry, and chemically treat to make the positive plate;
[0057] Assemble the positive and negative plates into a battery, and turn the battery into an active battery;
[0058] The cycle life of the storage battery was measured, the test standard is GB5008, and the results are listed in Table 1.
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Abstract
The invention provides a composition for manufacturing a polar plate of a lead acid storage battery. The composition is characterized by comprising the following components in percentage by weight: 85 to 95 percent of lead powder and 5 to 15 percent of fiberpowder additive, wherein the fiberpowder additive comprises 4 to 10 weight percent of glass fiber powder and 80 to 90 weight percent of storage battery polar plate lead paste powder. The glass fiber contains SiO2; and after the composition is made into the polar plate and then assembled into the storage battery, the SiO2 forms silica gel on the surface of the polar plate, the fine glass fiber and the silica gel in the polar plate improve the adhesiveness of the connection point of the active substance of the polar plate so as to improve the strength of the entire polar plate, namely, improve the stiffness of the polar plate. In addition, the metal and non-metal oxides formed by other elements in the glass fiber react in dilute sulfuric acid to produce salt so as to increase the solubility of PbSO4, improve the charging acceptability of the storage battery and prolong the service life of the battery.
Description
technical field [0001] The invention relates to a lead-acid battery, in particular to a composition for a lead-acid battery pole plate and a preparation method for a lead-acid battery pole plate. Background technique [0002] Lead-acid batteries are the main power source for battery electric vehicles, hybrid electric vehicles and fuel cell electric vehicles. The plate of the lead-acid battery is the main factor affecting the storage performance of the battery. The following steps are usually followed to prepare the plates of lead-acid batteries: First, use lead powder as the main raw material, mix it with water, dilute sulfuric acid and other raw materials, and then prepare it into a paste-like active substance, usually called lead paste. Then, the lead paste is filled in the grid body as the positive plate or coated on the surface of the lead alloy as the negative plate, and after aging and drying processes, it is manufactured into a non-chemical formation plate, and then ...
Claims
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Application Information
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