Method for preparing positive pole lead plaster for lead-acid storage battery
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A lead-acid battery and positive electrode paste technology, applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of positive electrode grid corrosion conductivity, positive active material performance deterioration, positive plate matching, etc.
Inactive Publication Date: 2012-10-10
SHANGHAI JINZHONG INFORMATION TECH
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Problems solved by technology
The main problems existing in the positive plate of the lead storage battery in the prior art are: the problems of corrosion and reduction of electrical conductivity of the positive grid during use
Method used
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Embodiment 1
[0012] Prepare raw materials: the weight ratio of positive electrode lead paste raw materials is: lead powder 100, lead dioxide 4, thiophene fiber 0.2, sodium sulfate 0.2, deionized water 7.5, active foam carbon material 6, mass percent concentration of 45% sulfuric acid solution 12 , in which the PbO content in the lead powder is 75%, and the length of the thiophene fiber is 1mm.
[0013] After mixing lead dioxide, thiophene fiber, sodium sulfate and activated carbon foam material, put them into the paste mixing machine together with lead powder, and start stirring for 10 minutes.
[0014] Then evenly add 13% pure water accounting for the weight of the mixture, and continue to stir for 6 minutes.
[0015] After adding water, within 23 minutes, add dilute sulfuric acid evenly according to the ratio in the form of spraying. When adding dilute sulfuric acid, turn on the inlet fan and circulating cooling water of the paste machine, control the temperature at 50-55°C, and finish a...
Embodiment 2
[0017] Prepare raw materials: the weight ratio of positive electrode lead paste raw materials is: lead powder 100, lead dioxide 8, thiophene fiber 0.4, sodium sulfate 0.5, deionized water 9, activated carbon foam material 8, mass percent concentration of 45% sulfuric acid solution 14 , wherein the PbO content in the lead powder is 75%, and the length of the thiophene fiber is 3mm.
[0018] After mixing lead dioxide, thiophene fiber, sodium sulfate and activated carbon foam material, add them into the paste mixing machine together with lead powder, and start stirring for 12 minutes.
[0019] After the stirring is completed, 15% pure water by weight of the mixture is evenly added, and the stirring is continued for 6 minutes.
[0020] After adding water and stirring, within 25 minutes, add dilute sulfuric acid evenly according to the proportion in the form of spraying, while adding dilute sulfuric acid, turn on the inlet fan and circulating cooling water of the paste machine, con...
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Abstract
The invention discloses a method for preparing a positive pole lead plaster for a lead-acid storage battery. The method comprises the following steps: the weight proportioning of raw materials of the positive pole lead plaster is 100 lead powder, 4-8 lead dioxide, 0.2-0.4 thiophene fiber, 0.2-0.5 sodium sulfate, 7.5-9 deionized water, 6-8 active foamy carbon material and 12-14 sulfuric acid solution of which the mass percent concentration is 45%, wherein the content of PbO in the lead powder is 75%, and the length of thiophene fiber is 1-3mm; the lead dioxide, the thiophene fiber, the sodium sulfate and the active foamy carbon material are added together with the lead powder into a plaster mixing machine after being well mixed, and the mixture is stirred for 10-12 minutes after the machine is started; purified water which takes up 13-15% of the weight of the mixed material is added uniformly into the mixture and is then continually stirred with the mixture for 6 minutes; and the dilute sulphuric acid is uniformly added into the mixture within 23-25 minutes in a spraying way according to the proportioning, an air inlet and circulation cooling water of the plaster mixing machine are started while the dilute sulphuric acid is added, the temperature is controlled to be 50-55 DEG C, the stirring is carried out continuously for 13-15 minutes to discharge the plaster after the dilute sulphuric acid is added. The plaster discharge temperature is no more than 40 DEG C, and then a negative pole lead plaster of the super lead-acid storage battery is obtained.
Description
technical field [0001] The invention relates to a preparation method of a battery positive electrode material, in particular to a preparation method of a lead-acid battery positive electrode paste. Background technique [0002] At present, the total output value of lead-acid batteries is half of the total output value of all chemical power sources. Because of its high-current discharge performance, lead-acid batteries are widely used in electric vehicles, hybrid vehicles, wind power, solar cells, and communication infrastructure. The working principle of lead-acid batteries is to use electrochemical principles to achieve material and energy conversion. The interface reaction characteristics of electrodes and electrolytes are the core and essence of battery performance. The basic components and materials that make up a lead-acid battery include: positive plate, negative plate, electrolyte or commonly known as electro-hydraulic, separator, battery tank. [0003] The positive ...
Claims
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Application Information
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