CN102723483A - Method for preparing positive pole lead plaster for lead-acid storage battery - Google Patents

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

The preparation method of lead-acid accumulator anode diachylon

Technical field

The present invention relates to a kind of preparation method of cell positive material, relate in particular to a kind of preparation method of lead-acid accumulator anode diachylon.

Background technology

The gross output value of lead acid accumulator is the half the of whole chemical power source gross output values at present, and lead acid accumulator is used widely in electric automobile, PHEV, wind power generation, solar cell and communication infrastructure because of its heavy-current discharge performance.The operation principle of lead accumulator is to utilize electrochemical principle to realize that matter and energy transforms, and electrode and electrolytical interfacial reaction characteristic are the cores and essence place that influences accumulator property.The basic element of character and the material that constitute lead accumulator comprise: positive plate, negative plate, electrolyte or be commonly called as electric liquid, dividing plate, cell jar.

Positive plate is the vitals that constitutes lead accumulator.The positive plate of lead storage battery of prior art exists subject matter to have: anode plate grid in use exists corrosion and electricity to lead ability reduction problem; Positive active material mis-behave problem; The active material of positive plate of lead storage battery and the matching problem of anode plate grid.

Therefore; Research and develop novel anode grid and positive active material and improve anode plate grid and the technology of positive active material coupling; The positive plate that processability is superior is a performance of further improving present lead accumulator; The problem that the lead accumulator that needs to be resolved hurrily exists at present, wherein the improvement of anode diachylon is again the key that addresses the above problem.

Summary of the invention

The preparation method who the purpose of this invention is to provide a kind of lead-acid accumulator anode diachylon of excellent performance.

To achieve these goals, the preparation method of a kind of lead-acid accumulator anode diachylon provided by the invention comprises the steps:

Step 1, prepare raw material: anode diachylon raw material weight proportioning is: lead powder 100, brown lead oxide 4-8; Thiophene fiber 0.2 ~ 0.4, sodium sulphate 0.2 ~ 0.5, deionized water 7.5 ~ 9; Active foamy carbon material 6 ~ 8; Mass percent concentration is 45% sulfuric acid solution 12 ~ 14, and wherein the PbO content in the lead powder is 75%, and the length of thiophene fiber is 1 ~ 3mm;

Step 2, with brown lead oxide, the thiophene fiber, sodium sulphate, after active foamy carbon material mixing was good, in lead powder added paste mixing machine, start was stirred 10 ~ 12 minutes;

Step 3, evenly adding accounts for step 2 compound weight 13 ~ 15% pure water, continues to stir 6 minutes;

Step 4 behind the completing steps 3, evenly added dilute sulfuric acid with spray shape mode by proportioning in 23 ~ 25 minutes; When adding dilute sulfuric acid, open the air intake machine and the recirculated cooling water of paste mixing machine; 50 ~ 55 ℃ of temperature of control, after adding dilute sulfuric acid and finishing, continuous stirring went out cream in 13 ~ 15 minutes again; Go out the cream temperature and be not higher than 40 ℃, obtain super lead-acid accumulator negative pole lead paste.

Embodiment

Embodiment one

Prepare raw material: anode diachylon raw material weight proportioning is: lead powder 100, brown lead oxide 4, thiophene fiber 0.2; Sodium sulphate 0.2; Deionized water 7.5, active foamy carbon material 6, mass percent concentration are 45% sulfuric acid solution 12; Wherein the PbO content in the lead powder is 75%, and the length of thiophene fiber is 1mm.

With brown lead oxide, the thiophene fiber, sodium sulphate, after active foamy carbon material mixing was good, in lead powder added paste mixing machine, start was stirred 10 minutes.

Evenly add then and account for above-mentioned compound weight 13% pure water, continuation stirring 6 minutes.

After adding the water completion; In 23 minutes, evenly add dilute sulfuric acid by proportioning, when adding dilute sulfuric acid, open the air intake machine and the recirculated cooling water of paste mixing machine, 50-55 ℃ of control temperature with spray shape mode; After adding the dilute sulfuric acid end; Continuous stirring went out cream in 13 minutes again, went out the cream temperature and was not higher than 40 ℃, obtained super lead-acid accumulator negative pole lead paste.

Embodiment two

Prepare raw material: anode diachylon raw material weight proportioning is: lead powder 100, brown lead oxide 8, thiophene fiber 0.4; Sodium sulphate 0.5, deionized water 9, active foamy carbon material 8; Mass percent concentration is 45% sulfuric acid solution 14, and wherein the PbO content in the lead powder is 75%, and the length of thiophene fiber is 3mm.

With brown lead oxide, the thiophene fiber, sodium sulphate, after active foamy carbon material mixing was good, in lead powder added paste mixing machine, start was stirred 12 minutes.

After stirring completion, evenly add compound weight 15% pure water, continue to stir 6 minutes.

After adding water stirring completion; In 25 minutes, evenly add dilute sulfuric acid by proportioning, when adding dilute sulfuric acid, open the air intake machine and the recirculated cooling water of paste mixing machine, 50-55 ℃ of control temperature with spray shape mode; After adding the dilute sulfuric acid end; Continuous stirring went out cream in 15 minutes again, went out the cream temperature and was not higher than 40 ℃, obtained super lead-acid accumulator negative pole lead paste.

In the above embodiment of the present invention, do not having under the situation about specifying, each set of dispense ratio or content all refer to weight proportion or weight content.

The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limiting the present invention, anyly be familiar with the professional and technical personnel, in not breaking away from technical scheme of the present invention; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention, to any simple modification, equivalent variations and modification that above embodiment made, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.

Claims (1)

1. the preparation method of a lead-acid accumulator anode diachylon is characterized in that, comprises the steps:

Step 1, prepare raw material: anode diachylon raw material weight proportioning is: lead powder 100, brown lead oxide 4-8; Thiophene fiber 0.2 ~ 0.4, sodium sulphate 0.2 ~ 0.5, deionized water 7.5 ~ 9; Active foamy carbon material 6 ~ 8; Mass percent concentration is 45% sulfuric acid solution 12 ~ 14, and wherein the PbO content in the lead powder is 75%, and the length of thiophene fiber is 1 ~ 3mm;

Step 2, with brown lead oxide, the thiophene fiber, sodium sulphate, after active foamy carbon material mixing was good, in lead powder added paste mixing machine, start was stirred 10 ~ 12 minutes;

Step 3, evenly adding accounts for step 2 compound weight 13 ~ 15% pure water, continues to stir 6 minutes;

Step 4 behind the completing steps 3, evenly added dilute sulfuric acid with spray shape mode by proportioning in 23 ~ 25 minutes; When adding dilute sulfuric acid, open the air intake machine and the recirculated cooling water of paste mixing machine; 50 ~ 55 ℃ of temperature of control, after adding dilute sulfuric acid and finishing, continuous stirring went out cream in 13 ~ 15 minutes again; Go out the cream temperature and be not higher than 40 ℃, obtain super lead-acid accumulator negative pole lead paste.