CN103296317A - Mixed colloidal electrolyte and preparation technology thereof - Google Patents
Mixed colloidal electrolyte and preparation technology thereof Download PDFInfo
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- CN103296317A CN103296317A CN2013101606885A CN201310160688A CN103296317A CN 103296317 A CN103296317 A CN 103296317A CN 2013101606885 A CN2013101606885 A CN 2013101606885A CN 201310160688 A CN201310160688 A CN 201310160688A CN 103296317 A CN103296317 A CN 103296317A
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Abstract
The invention relates to storage battery electrolyte, especially relates to the mixed colloidal electrolyte and preparation technology thereof. The colloidal electrolyte comprises silicon powder aqueous solution and mixed acid solution, and the weight ratio between the silicon powder aqueous solution and the mixed acid solution is 1:4, and the acid fixing ability of the colloid prepared by the technical scheme reaches to 96.25%, and compared with the previous colloid, the acid fixing ability increased by 5-10%, and the gel intensity reaches to 45 mm which is moderate and the gel is easy to be poured in, and the product is stable after gelling with hydration layering and good thixotropy. According to the preparation technology of the mixed colloidal electrolyte, parts of additives in the specific preparation process are dissolved by supersonic wave, and each substance in the mixed colloidal electrolyte is mixed uniformly according to the preparation technology, thereby avoiding nonuniform mixing between each object of the mixed colloidal electrolyte which influences the performance of the electrolyte, and further improving the quality of the mixed colloidal electrolyte with moderate gel intensity, easy perfusion, stability after gelling, and good thixotropy without hydration layering.
Description
Technical field
The present invention relates to battery electrolyte, relate in particular to a kind of colloid mixture electrolyte and preparation technology thereof.
Background technology
Colloid battery cycle life, overcharging resisting overdischarge, owe property such as charging and be better than common lead-acid battery, colloid battery more and more is subjected to people's favor.The most critical technology of colloid battery is colloidal electrolyte.In order to improve the colloid battery performance, increasing people is at the colloidal electrolyte of lead acid accumulator of research and development superior performance.The performance of colloidal electrolyte depends primarily on colloid prescription and preparation technology thereof.Traditional colloidal electrolyte of lead acid accumulator has two kinds usually: a kind of is Ludox, and another kind is the colloidal electrolyte that contains the aerosil preparation.These two kinds of colloidal electrolytes respectively have pluses and minuses.Ludox belongs to colloidal solution, odorless, nontoxic, and molecular formula can be expressed as mSiO
2NH
2O, because colloidal particle is fine, diameter is 10～90nm, sizable specific area is arranged, and the water white transparency of particle own does not influence the true qualities that are capped thing, Ludox viscosity is lower, and the porous place of water can both be permeated, therefore and other material when mixing dispersiveness and permeability all very good.Colloidal electrolyte viscosity is low, preparation, stores, adds in the battery colloidal electrolyte all than being easier to, and thixotropy is better.But its shortcoming easy aquation layering that is Ludox.The colloidal electrolyte agglutination attitude of aerosil preparation is very good, does not have the aquation lamination, and is big but its shortcoming is viscosity, and perfusion is very difficult in the battery.
Traditional colloid for preparing technology adopts usually soaks silicon dioxide, sulfuric acid, water and auxiliary agent, and then adopt and manually stir or stir, Zhi Bei colloidal electrolyte is owing to the shearing force deficiency like this, and silicon dioxide disperses inhomogeneous, the electrolyte instability, Yishui River hierarchies.Or bigger than normal with the colloidal electrolyte viscosity of aerosil preparation, the perfusion difficulty.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, and the layering of a kind of not aquation is provided, and electrolyte is easy to perfusion, and thixotropy is good, the colloid mixture electrolyte of stable performance.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the colloid mixture electrolyte, comprise the silica flour aqueous solution and mixed acid solution, and the weight ratio of the silica flour aqueous solution and mixed acid solution is 1:4;
The described silica flour aqueous solution comprises deionized water, and weight is the glycerine of deionized water weight 0.5～0.6%, and weight is the precipitated silica of deionized water weight 3～6%, and weight is the polyacrylamide of deionized water weight 0.006～0.01%;
Described mixed acid solution comprises deionized water, weight is the concentrated sulfuric acid of deionized water weight 94～96%, weight is the boric acid of deionized water weight 0.8～1.6%, and weight is the stannous sulfate of deionized water weight 0.01～0.03%, and weight is the cobaltous sulfate of deionized water weight 0.14～0.51%.
As preferably, described deionization electrical conductivity of water is less than 2us/cm, and deionized water and to regulate water purity impurity less has improved the electrolytical quality of colloid mixture.
As preferably, described polyacrylamide is for analyzing pure level, and polyacrylamide impurity is few, has further improved the electrolytical quality of colloid mixture, and analyze pure grade polypropylene acid amides easily system join, reduced the electrolytical system of colloid mixture and be made into this.
As preferably, described aerosil is that specific area is 200m
2/ g and 380m
2/ g is the mixture of 2～3:1 according to weight ratio, has improved the electrolytical quality of colloid mixture.
As preferably, described glycerine is for analyzing pure level, and glycerine impurity is few, has further improved the electrolytical quality of colloid mixture, and analyze pure level glycerine easily system join, reduced the electrolytical system of colloid mixture and be made into this.
As preferably, described mixed acid solution is 1.345～1.355g/ml 25 ℃ condition lower density, boronic acid containing percentage by weight 0.4～0.8%, sulfur acid weight of cobalt percentage 0.07%～0.25%, the inferior tin percentage by weight 0.01～0.03% of sulfur acid, the mixed acid solution of this proportioning has improved the electrolytical quality of colloid mixture on the whole.
The electrolytical preparation technology of the described colloid mixture of a kind of technique scheme is characterized in that:
The collocation method of the step 1 silica flour aqueous solution is:
A, to having rotating speed more than or equal to adding the deionized water of conductivity less than 2us/cm in 2880 rev/mins the agitating device;
B, to add weight in the agitating device be the glycerine of deionized water weight 0.5～0.6%;
C, to add weight in the agitating device be the precipitated silica of deionized water weight 3～6%;
D, aerosil is sucked in the deionized water fully, add agitating device;
E, the material that has added step a, b, c, d in the agitating device is stirred 10～15 minutes;
F, be the polyacrylamide of deionized water weight 0.006～0.01% to the adding weight of agitating device, stirred again 5～10 minutes;
The collocation method of step 2 mixed acid solution is:
G, add conductivity in the complex acid jar less than the deionized water of 2us/cm, in the complex acid jar, be added in 25 ℃ of condition lower densities for 1.84g/ml weight is the concentrated sulfuric acid of deionized water weight 94～96% then, stir while adding;
H, when sulfuric acid solution temperature to be prepared is cooled to below 50 ℃, adding weight in the complex acid jar is the boric acid of deionized water weight 0.8～1.6%, and stirs;
I, to get stannous sulfate and the weight that weight is deionized water weight 0.01～0.03% be the cobaltous sulfate of deionized water weight 0.14～0.51%, and stannous sulfate and cobaltous sulfate put into the ultrasonic wave tank, adding conductivity is the deionized water of deionized water weight 2% in the g step less than 2us/cm weight, starts the ultrasonic wave acoustical generator and the aqueous solution is warmed to about 40～50 ℃;
J, the stannous sulfate that will fully dissolve and cobalt sulfate solution join in the sulfuric acid solution that contains boric acid of preparation, stir;
K, with densimeter measurement mixed acid solution density, and finely tune less than the deionized water of 2us/cm with a small amount of conductivity, making mixed acid solution is 1.345～1.355g/ml 25 ℃ of condition lower densities;
Step 3 is: the silica flour aqueous solution that configures and the mixed acid solution that configures are put into the configuration bucket with agitating device by the weight ratio of 1:4, stirred 50-90 minute, the colloid mixture electrolyte solution density that detection prepares, should be at 1.26～1.27g/ml 25 ℃ of condition lower densities, not in this density range, finely tune with deionized water or the mixed acid solution that configures.
As preferably, an agitating device rotating speed is 800 to 1200 rev/mins in the described configuration bucket, is conducive to mix between each material of colloid mixture electrolyte, has improved the electrolytical quality of colloid mixture.
As preferably; the length of the blade of agitating device is 7/10 to 9/10 of agitating device inwall radius in the described configuration bucket; this agitating device blade and length can guarantee the agitating device proper motion; can guarantee that again all substances that are positioned at agitating device can both be stirred; protect interior each material of colloid mixture electrolyte and mix, further improved the electrolytical quality of colloid mixture.
From technique scheme as can be seen, comprise the silica flour aqueous solution and mixed acid solution, the weight ratio of the silica flour aqueous solution and mixed acid solution is 1:4, the described silica flour aqueous solution comprises deionized water, glycerine, precipitated silica, polyacrylamide, described mixed acid solution comprises deionized water, the concentrated sulfuric acid, boric acid, stannous sulfate, cobaltous sulfate, the technical program makes the solid sour ability of colloid and reaches more than 96.25%, than the 5-10% of the admittedly sour ability raising of colloid in the past, its gel strength reaches 45mm, gel strength is moderate, be easy to the perfusion and gel after more stable, not aquation layering, thixotropy is good.
The electrolytical preparation technique of above-mentioned colloid mixture, joining each material that can make in the process in the colloid mixture electrolyte in concrete system mixes more even, avoided between each thing of colloid mixture electrolyte mixing inhomogeneous and influenced electrolytical performance, each material in each colloid mixture electrolyte is mixed, further improved the electrolytical quality of colloid mixture, made its gel strength moderate, be easy to the perfusion and gel after more stable, not aquation layering, thixotropy is good.
Embodiment
Embodiment one
One, the preparation of the silica flour aqueous solution:
A, be that rotating speed is that to add the 200kg conductivity in 2880 rev/mins the bucket be the deionized water of 1.78us/cm to having agitating device,
B, add 1Kg in the bucket that has agitating device and analyze pure glycerin,
C, in the bucket that has agitating device, add the 8Kg precipitated silica,
D, the gaseous mixture aerosil is sucked in the pure water fully,
E, unlatching mixer, 2880 rev/mins of mixer rotating speeds, about 200 millimeters of mixing arm length stirred 15 minutes, and precipitated silica and aerosil under agitation are well dispersed in the solution.
F, add 15g in the bucket that has agitating device and analyze the virgin pp acid amides, stirred 10 minutes, solution is stirred, stand-by.
Two, the preparation of nitration mixture:
G, to add conductivity in the complex acid jar be the deionized water 500Kg of 1.78us/cm, slowly is added in the concentrated sulfuric acid 466Kg that 25 ℃ of density are about 1.84g/ml in the complex acid jar then, and the limit edged stirs, and stirs.
H, sulfuric acid solution temperature to be prepared are cooled to about 45 ℃, add boric acid 6Kg in the complex acid jar, and stir, and be stand-by.
I, get the stannous sulfate 0.2Kg that analyzes pure level and analyze pure level cobaltous sulfate 1Kg, and stannous sulfate and cobaltous sulfate put into the ultrasonic wave tank, adding conductivity is the about 10Kg of deionized water of 1.78us/cm, start the ultrasonic wave acoustical generator and the aqueous solution is warmed to about 40 ℃, stannous sulfate and cobaltous sulfate are fully dissolved.
J, the stannous sulfate that will fully dissolve and cobalt sulfate solution join in the sulfuric acid solution that contains boric acid of above-mentioned preparation, stir.
K, with densimeter measurement mixed acid solution density, and be that the deionized water of 1.78us/cm is finely tuned with a small amount of conductivity, make mixed acid solution be 1.350g/ml 25 ℃ of lower densities, stand-by.
Three, the electrolytical preparation of colloid mixture: take by weighing the about 200Kg of the silica flour aqueous solution that configures in the step 1, take by weighing the about 800Kg of the mixed acid solution that configures in the step 2, the load weighted silica flour aqueous solution poured into to have agitating device be that rotating speed is at 800～1200 rev/mins, in the preparation bucket that the agitating device blade length is 100～200 millimeters, and then load weighted mixed acid solution poured in the preparation bucket, starting agitating device stirs, 800～1200 rev/mins of rotating speeds, stirred 80 minutes, being the colloid mixture electrolyte solution density that the densitometer detection of 1.200～1.300g/ml prepares with low amounts of water fine setting and with range, is 1.267g/ml 25 ℃ of lower densities.
In whole process for preparation, apparatus such as used preparation bucket, stirrer paddle are acidproof resistant material, in colloid mixture preparation of electrolyte process, avoid contaminating impurity colloidal electrolytes such as iron, chlorine, in order to avoid the impurity effect self-discharge of battery.
The solid sour aptitude tests of the colloid mixture electrolyte solution for preparing:
Conical flask weight W with the electronic balance weighing drying
1Weight is 115.42g, filter paper is built up taper shape go on the taper bottleneck weight W of weighing conical flask filter paper and funnel
2Weight is 193.38g, the colloid about 70g is poured in the filter paper filtered, the weight W of weighing colloid conical flask filter paper and funnel
3Weight is 262.73g, takes off funnel after 1 hour, the weight W of the acid of weighing conical flask and the inside
4Weight is 118.02g.
Gu sour ability=(W
3-W
2-W
4+ W
1)/(W
3-W
2) * 100%=96.25%
The invention provides prescription and making the solid sour ability of colloid and reach more than 96.25%, improving 5-10% than the solid sour ability of colloid in the past.
The gel strength test:
Colloid mixture electrolyte rod drop method of the present invention, namely insert colloidal electrolyte behind the gel with rod from level altitude, the degree of depth of inserting is more little, the gel strength of colloidal electrolyte is more big, and the degree of depth of insertion is more big, and gel strength is more little, survey its gel strength and reach 45mm, gel strength is moderate, be easy to the perfusion and gel after more stable, not aquation layering.
The electrolyte of colloid mixture prescription of the present invention and colloidal electrolyte dissolving preparation technology preparation adopts special technology to add gel Cheng Houyu tradition colloid battery and does the performance comparison test by GB/T22199-2008 " sealing lead acid storage battery for electric vehicle " national standard, and the result is as follows:
From performance test adopts prescription of the present invention and preparation technology to produce as can be seen to this battery, experimental performance is obviously than conventional batteries superior performance.
Embodiment two
One, the preparation of the silica flour aqueous solution:
A, be that rotating speed is that to add the 200kg conductivity in 2880 rev/mins the bucket be the deionized water of 1.78us/cm to having agitating device,
B, add 1.2Kg in the bucket that has agitating device and analyze pure glycerin,
C, in the bucket that has agitating device, add the 12Kg precipitated silica,
D, the gaseous mixture aerosil is sucked in the pure water fully,
E, unlatching mixer, 2880 rev/mins of mixer rotating speeds, about 200 millimeters of mixing arm length stirred 15 minutes, and precipitated silica and aerosil under agitation are well dispersed in the solution.
F, add 20g in the bucket that has agitating device and analyze the virgin pp acid amides, stirred 10 minutes, solution is stirred, stand-by.
Two, the preparation of nitration mixture:
G, to add conductivity in the complex acid jar be the deionized water 500Kg of 1.78us/cm, slowly is added in the concentrated sulfuric acid 480Kg that 25 ℃ of density are about 1.84g/ml in the complex acid jar then, and the limit edged stirs, and stirs.
H, sulfuric acid solution temperature to be prepared are cooled to about 45 ℃, add boric acid 8Kg in the complex acid jar, and stir, and be stand-by.
I, get the stannous sulfate 0.3Kg that analyzes pure level and analyze pure level cobaltous sulfate 2Kg, and stannous sulfate and cobaltous sulfate put into the ultrasonic wave tank, adding conductivity is the about 10Kg of deionized water of 1.78us/cm, start the ultrasonic wave acoustical generator and the aqueous solution is warmed to about 40 ℃, stannous sulfate and cobaltous sulfate are fully dissolved.
J, the stannous sulfate that will fully dissolve and cobalt sulfate solution join in the sulfuric acid solution that contains boric acid of above-mentioned preparation, stir.
K, with densimeter measurement mixed acid solution density, and be that the deionized water of 1.78us/cm is finely tuned with a small amount of conductivity, make mixed acid solution be 1.350g/ml 25 ℃ of lower densities, stand-by.
Three, the electrolytical preparation of colloid mixture: take by weighing the about 100Kg of the silica flour aqueous solution that configures in the step 2, take by weighing the about 400Kg of the mixed acid solution that configures in the step 1, the load weighted silica flour aqueous solution poured into to have agitating device be that rotating speed is at 800～1200 rev/mins, in the preparation bucket that the agitating device blade length is 100～200 millimeters, and then load weighted mixed acid solution poured in the preparation bucket, starting agitating device stirs, 800～1200 rev/mins of rotating speeds, stirred 70 minutes, being the colloid mixture electrolyte solution density that the densitometer detection of 1.200-1.300g/ml prepares with low amounts of water fine setting and with range, is 1.267g/ml 25 ℃ of lower densities.
The solid sour aptitude tests of the colloid mixture electrolyte solution for preparing:
Conical flask weight W with the electronic balance weighing drying
1Weight is 115.42g, filter paper is built up taper shape go on the taper bottleneck weight W of weighing conical flask filter paper and funnel
2Weight is 193.38g, the colloid about 70g is poured in the filter paper filtered, the weight W of weighing colloid conical flask filter paper and funnel
3Weight is 263g, takes off funnel after 1 hour, the weight W of the acid of weighing conical flask and the inside
4Weight is 118.02g.
Gu sour ability=(W
3-W
2-W
4+ W
1)/(W
3-W
2) * 100%=96.38%
The invention provides prescription and making the solid sour ability of colloid and reach more than 96.25%, improving 5-10% than the solid sour ability of colloid in the past.
The gel strength test:
Colloid mixture electrolyte rod drop method of the present invention, namely insert colloidal electrolyte behind the gel with rod from level altitude, the degree of depth of inserting is more little, the gel strength of colloidal electrolyte is more big, and the degree of depth of insertion is more big, and gel strength is more little, survey its gel strength and reach 45mm, gel strength is moderate, be easy to the perfusion and gel after more stable, not aquation layering.
The electrolyte of colloid mixture prescription of the present invention and colloidal electrolyte dissolving preparation technology preparation adopts special technology to add gel Cheng Houyu tradition colloid battery and does the performance comparison test by GB/T22199-2008 " sealing lead acid storage battery for electric vehicle " national standard, and the result is as follows:
From performance test adopts prescription of the present invention and preparation technology to produce as can be seen to this battery, experimental performance is obviously than conventional batteries superior performance.
Being preferred implementation of the present invention only below, being intended to embody outstanding technique effect of the present invention and advantage, is not to be restriction to technical scheme of the present invention.This area the skill personnel it should be understood that, all modifications of making based on the technology of the present invention content, variation or substitute technology feature all should be covered by in the technology category of claims opinion of the present invention.
Claims (9)
1. colloid mixture electrolyte, it is characterized in that: comprise the silica flour aqueous solution and mixed acid solution, the weight ratio of the silica flour aqueous solution and mixed acid solution is 1:4;
The described silica flour aqueous solution comprises deionized water, and weight is the glycerine of deionized water weight 0.5～0.6%, and weight is the precipitated silica of deionized water weight 3～6%, and weight is the polyacrylamide of deionized water weight 0.006～0.01%;
Described mixed acid solution comprises deionized water, weight is the concentrated sulfuric acid of deionized water weight 94～96%, weight is the boric acid of deionized water weight 0.8～1.6%, and weight is the stannous sulfate of deionized water weight 0.01～0.03%, and weight is the cobaltous sulfate of deionized water weight 0.14～0.51%.
2. colloid mixture electrolyte according to claim 1, it is characterized in that: described deionization electrical conductivity of water is less than 2us/cm.
3. colloid mixture electrolyte according to claim 1 is characterized in that: described polyacrylamide is for analyzing pure level.
4. colloid mixture electrolyte according to claim 1, it is characterized in that: described aerosil is that specific area is 200m
2/ g and 380m
2/ g is the mixture of 2～3:1 according to weight ratio.
5. colloid mixture electrolyte according to claim 1 is characterized in that: described glycerine is for analyzing pure level.
6. colloid mixture electrolyte according to claim 1, it is characterized in that: described mixed acid solution is 1.345～1.355g/ml 25 ℃ condition lower density, boronic acid containing percentage by weight 0.4～0.8%, sulfur acid weight of cobalt percentage 0.07%～0.25%, the inferior tin percentage by weight 0.01～0.03% of sulfur acid.
7. electrolytical preparation technology of colloid mixture as claimed in claim 1 is characterized in that:
The collocation method of the step 1 silica flour aqueous solution is:
A, to having rotating speed more than or equal to adding the deionized water of conductivity less than 2us/cm in 2880 rev/mins the agitating device;
B, to add weight in the agitating device be the glycerine of deionized water weight 0.5～0.6%;
C, to add weight in the agitating device be the precipitated silica of deionized water weight 3～6%;
D, aerosil is sucked in the deionized water fully, add agitating device;
E, the material that has added step a, b, c, d in the agitating device is stirred 10～15 minutes;
F, be the polyacrylamide of deionized water weight 0.006～0.01% to the adding weight of agitating device, stirred again 5～10 minutes;
The collocation method of step 2 mixed acid solution is:
G, add conductivity in the complex acid jar less than the deionized water of 2us/cm, in the complex acid jar, be added in 25 ℃ of condition lower densities for 1.84g/ml weight is the concentrated sulfuric acid of deionized water weight 94～96% then, stir while adding;
H, when sulfuric acid solution temperature to be prepared is cooled to below 50 ℃, adding weight in the complex acid jar is the boric acid of deionized water weight 0.8～1.6%, and stirs;
I, to get stannous sulfate and the weight that weight is deionized water weight 0.01～0.03% be the cobaltous sulfate of deionized water weight 0.14～0.51%, and stannous sulfate and cobaltous sulfate put into the ultrasonic wave tank, adding conductivity is the deionized water of deionized water weight 2% in the g step less than 2us/cm weight, starts the ultrasonic wave acoustical generator and the aqueous solution is warmed to about 40～50 ℃;
J, the stannous sulfate that will fully dissolve and cobalt sulfate solution join in the sulfuric acid solution that contains boric acid of preparation, stir;
K, with densimeter measurement mixed acid solution density, and finely tune less than the deionized water of 2us/cm with a small amount of conductivity, making mixed acid solution is 1.345～1.355g/ml 25 ℃ of condition lower densities;
Step 3 is: the silica flour aqueous solution that configures and the mixed acid solution that configures are put into the configuration bucket with agitating device by the weight ratio of 1:4, stirred 50-90 minute, the colloid mixture electrolyte solution density that detection prepares, should be at 1.26～1.27g/ml 25 ℃ of condition lower densities, not in this density range, finely tune with deionized water or the mixed acid solution that configures.
8. the electrolytical preparation technology of colloid mixture according to claim 7 is characterized in that: an agitating device rotating speed is 800 to 1200 rev/mins in the described configuration bucket.
9. the electrolytical preparation technology of colloid mixture according to claim 8 is characterized in that: the length of the blade of agitating device is 7/10 to 9/10 of agitating device inwall radius in the described configuration bucket.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104051796A (en) * | 2014-05-29 | 2014-09-17 | 天能电池(芜湖)有限公司 | Formulation and preparation method of storage battery colloid mother liquor |
| CN105514503A (en) * | 2016-02-03 | 2016-04-20 | 广东猛狮新能源科技股份有限公司 | Colloidal electrolyte of lead acid storage battery, and preparation method for colloidal electrolyte |
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| CN101154742A (en) * | 2007-09-17 | 2008-04-02 | 深圳市今星光实业有限公司 | Accumulator colloidal electrolyte and its assembling and gel-filling technology |
| CN101291002A (en) * | 2008-05-06 | 2008-10-22 | 浙江超威电源有限公司 | Colloidal electrolyte of lead acid batteries |
| CN101877419A (en) * | 2010-06-30 | 2010-11-03 | 长兴诺力电源有限公司 | Colloidal electrolyte and preparation method thereof |
| CN102412421A (en) * | 2011-09-15 | 2012-04-11 | 广州市南方光源高能蓄电池有限公司 | Preparation method of lead-acid battery electrolyte |
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2013
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| US4238556A (en) * | 1979-08-13 | 1980-12-09 | Hradcovsky Rudolf J | Lead-acid cell |
| CN101154742A (en) * | 2007-09-17 | 2008-04-02 | 深圳市今星光实业有限公司 | Accumulator colloidal electrolyte and its assembling and gel-filling technology |
| CN101291002A (en) * | 2008-05-06 | 2008-10-22 | 浙江超威电源有限公司 | Colloidal electrolyte of lead acid batteries |
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| CN104051796A (en) * | 2014-05-29 | 2014-09-17 | 天能电池(芜湖)有限公司 | Formulation and preparation method of storage battery colloid mother liquor |
| CN105514503A (en) * | 2016-02-03 | 2016-04-20 | 广东猛狮新能源科技股份有限公司 | Colloidal electrolyte of lead acid storage battery, and preparation method for colloidal electrolyte |
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|---|---|
| CN103296317B (en) | 2015-06-17 |
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