CN107819109A - A kind of preparation method of wet lotus maintenance-free battery and products thereof - Google Patents
A kind of preparation method of wet lotus maintenance-free battery and products thereof Download PDFInfo
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- CN107819109A CN107819109A CN201710892411.XA CN201710892411A CN107819109A CN 107819109 A CN107819109 A CN 107819109A CN 201710892411 A CN201710892411 A CN 201710892411A CN 107819109 A CN107819109 A CN 107819109A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/14—Assembling a group of electrodes or separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/20—Processes of manufacture of pasted electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/56—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead
- H01M4/57—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead of "grey lead", i.e. powders containing lead and lead oxide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention provides a kind of preparation method of wet lotus maintenance-free battery and products thereof, wherein, technical process impurity content is strictly controlled in preparation method and reduces cathode lead plaster acid content.We invents obtained wet lotus maintenance-free battery, and pole plate impurity content is low, and self-discharge of battery speed substantially reduces.
Description
Technical field
The invention belongs to technical field prepared by wet lotus maintenance-free battery, and in particular to a kind of system of wet lotus maintenance-free battery
Preparation Method and products thereof.
Background technology
The battery of current most of manufacturer productions has dry charged type pregnant solution type battery, and dry charged type maintenance-free battery and wet lotus formula are exempted from
Safeguard battery.But as national environmental protection policy becomes tight, national industrial policies adjustment, dry charged type battery is gradually eliminated.Encourage to use
The wet lotus formula battery of container formation technique productions, wet charged pond is easy to use, without acid adding；It is easy to without demijohn in wet charged pond
Transport preserves, will not be caused by demijohn breakage acid liquor leakage to equipment, environmental pollution and corrosion.
The domestic producer of production Shi He maintenance-free batteries at present is more, and product type is also complete, but the more battery of market reaction
It is even more that wet lotus formula maintenance-free battery is kept outside of the door not deposit electricity, particularly main engine plants, to find out its cause, main engine plants' locomotive sale and storehouse
Cycle of deposit is longer, and typically more than 6 months, but many stock's phases, at 12 months, therefore, main engine plants require the wet charged pond stock phase
Meet 12 months., can be with without initial charge but the domestic wet general Storage period of lotus formula maintenance-free battery is at 6 months or so
Start locomotive, it is clear that market can not be met to wet lotus formula battery quality needs.
The content of the invention
The purpose of this part is to summarize some aspects of embodiments of the invention and briefly introduce some preferably to implement
Example.It may do a little simplified or be omitted to avoid making our department in this part and the description of the present application summary and denomination of invention
Point, the purpose of specification digest and denomination of invention obscure, and this simplification or omit and cannot be used for limiting the scope of the present invention.
In view of the technological gap of the preparation method of above-mentioned and/or existing wet lotus maintenance-free battery, it is proposed that the present invention.
Therefore, the one of purpose of the present invention is to provide a kind of preparation method of wet lotus maintenance-free battery cathode lead plaster.
In order to solve the above technical problems, the invention provides following technical scheme：A kind of wet lotus maintenance-free battery negative electrode lead
The preparation method of cream, including, auxiliary material, its formula is counted using lead powder quality as 100%, including chopped fiber 0.01~0.2%, barium sulfate
0.2~3%, 0.06~1.5% lignin；Lead powder is mixed with the auxiliary material by formula, obtains mix；The lead powder is miscellaneous
Matter iron content is not more than 0.0005%；Charcoal additive is dispersed in the mixed solution of alcohol and water, it is pre-dispersed that stirring forms charcoal
Liquid；The water conductivity is not more than 1 μ S/cm；The mix and the charcoal pre-dispersed liquid are stirred, sulfuric acid is added and stirs
Mix, obtain wet lotus maintenance-free battery cathode lead plaster；Impurity iron content is not more than 0.001% in the sulfuric acid, and impurity chlorine is not more than
0.0003%；The sulfuric acid, its addition is by every kilogram of 30~45g of the lead powder addition sulfuric acid；The charcoal additive includes height
The mixing Carbon Materials of electrically conductive graphite and/or high surface area carbon composition.
As a kind of preferred scheme of the preparation method of wet lotus maintenance-free battery cathode lead plaster of the present invention, wherein：Institute
State and be stirred the mix and the charcoal pre-dispersed liquid, it is to the mixing with the speed no more than 5mL/min
Dispensing is slowly added to the charcoal pre-dispersed liquid.
As a kind of preferred scheme of the preparation method of wet lotus maintenance-free battery cathode lead plaster of the present invention, wherein：Institute
State stirring and form charcoal pre-dispersed liquid, wherein, the mixing speed of the stirring is 400~500rpm.
As a kind of preferred scheme of the preparation method of wet lotus maintenance-free battery cathode lead plaster of the present invention, wherein：Institute
State and be dispersed in charcoal additive in the mixed solution of alcohol and water, wherein, the volume ratio of the alcohol and water is 1:2~6.
As a kind of preferred scheme of the preparation method of wet lotus maintenance-free battery cathode lead plaster of the present invention, wherein：Institute
Stating highly conductive graphite includes natural flake graphite or expanded graphite, and its conductance is not less than 2 × 10-6Ω m, its quality are described
The 0.1~3% of lead powder quality.
As a kind of preferred scheme of the preparation method of wet lotus maintenance-free battery cathode lead plaster of the present invention, wherein：Institute
Stating high surface area carbon includes activated carbon, and its specific surface area is not less than 500m2/ g, its quality for the lead powder quality 0.1~
3%.
Further object of the present invention is to provide a kind of preparation method of wet lotus maintenance-free battery negative plates.
In order to solve the above technical problems, the invention provides following technical scheme：A kind of wet lotus maintenance-free battery negative pole pole
The preparation method of plate, including, wet lotus maintenance-free battery cathode lead plaster made from any one of claim 1,2,4 or 6 passes through
Wet lotus maintenance-free battery negative plates are made coated on pure stereotype grid in continuous Cast Strip-continuous punching-continuous smear.
It is a still further object of the present invention to provide a kind of preparation method of wet lotus maintenance-free battery.
In order to solve the above technical problems, the invention provides following technical scheme：A kind of preparation of wet lotus maintenance-free battery
Method, including, using wet lotus maintenance-free battery negative plates made from claim 7, by itself and anode plate, barrier film and electrolysis
Liquid is assembled into wet lotus maintenance-free battery.
It is a still further object of the present invention to provide a kind of wet lotus maintenance-free battery.
In order to solve the above technical problems, the invention provides following technical scheme：A kind of lotus wet according to claim 8
Wet lotus maintenance-free battery made of the preparation method of maintenance-free battery, the wet lotus maintenance-free battery, its Storage period are 12 months
More than.
Beneficial effect possessed by the present invention：
(1) we invents obtained wet lotus maintenance-free battery, and pole plate impurity content is low, and self-discharge of battery speed substantially drops
It is low.
(2) we invents obtained wet lotus maintenance-free battery, and negative plate depth of discharge is low, negative plate charging recovery capability
By force.
(3) we invents obtained wet lotus maintenance-free battery, and Storage period is more than 12 months.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, with reference to specific embodiment pair
The embodiment of the present invention is described in detail.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here using other to implement, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
Secondly, " one embodiment " or " embodiment " referred to herein refers to may be included at least one realization side of the present invention
Special characteristic, structure or characteristic in formula." in one embodiment " that different places occur in this manual not refers both to
Same embodiment, nor the single or selective embodiment mutually exclusive with other embodiment.
Carbon Materials powder in embodiment, other auxiliary materials, water, the quantity of alcohol and sulfuric acid to account for the mass ratio of lead powder and
Speech, number is parts by weight.
Embodiment 1
Selection natural flake graphite is electrically conductive graphite, specific surface area 1300m2/ g, it is mesoporous based on activated carbon be high ratio
Surface carbon deposit.Cathode lead plaster (numbering A) is configured according to following steps：
(1) weighing 100 parts of lead powder, (impurity iron content is not more than 0.0005%；), 1.0 parts of barium sulfate, 0.6 part of lignin,
0.06 part of chopped fiber is added in paste mixing machine in the lump, dry-mixed stirring 8 minutes.
(2) 0.5 part of conductive agent graphite and 0.5 part of active carbon with high specific surface area are added to 10 parts of alcohol and water mixed solution
(volume ratio of alcohol and water is 1:4) in, stirred 5 minutes with 500rpm, form dispersed charcoal pre-dispersed liquid.
(3) mix of lead powder and other auxiliary materials composition is being kept during stirring, with no more than 5mL/min's
Speed is slowly added to scattered charcoal pre-dispersed liquid, stirs while adding, and is then stirred for 10 minutes.
(4) it is 1.260g/cm 4.5 parts of density to be added into above-mentioned paste mixing machine3Sulfuric acid (impurity iron content is not more than
0.001%, impurity chlorine stirs 10 minutes no more than 0.0003%), and then adding appropriate adjustment water, (conductance is not more than 1 μ S/
Cm), lead plaster is made.Control 4.30 ± 0.05g/cm of apparent density of lead paste3, lead plaster temperature is less than 45 DEG C.
In embodiment 1, after lead plaster is made, chooses a small amount of sample and shoot scanning electron microscope diagram, it can be seen that
Carbon Materials are uniformly distributed, soilless sticking phenomenon；In corresponding EDS testing results, it can also be seen that point of the carbon in whole lead plaster
Cloth is very uniform.
Battery made from embodiment 1 can start locomotive, battery remaining power >=70% after 12 months, without initial charge.
Embodiment 2
Selection expanded graphite is electrically conductive graphite, specific surface area 1000m2Activated carbon based on/g, macropore is high-ratio surface
Carbon deposit.Cathode lead plaster (numbering B) is configured according to following steps：
(1) weigh 100 parts of lead powder (impurity iron content be not more than 0.0005%), 1.5 parts of barium sulfate, 0.8 part of lignin,
0.05 part of chopped fiber is added in paste mixing machine in the lump, dry-mixed stirring 8 minutes.
(2) 0.5 part of conductive agent graphite and 1.0 parts of active carbon with high specific surface area are added to 10 parts of alcohol and water (conductance
No more than 1 μ S/cm) mixed solution (volume ratio of alcohol and water be 1:2) in, stirred 5 minutes with 400rpm, formed and uniformly divided
Scattered charcoal pre-dispersed liquid.
(3) mix of lead powder and other auxiliary materials composition is being kept during stirring, with no more than 5mL/min's
Speed is slowly added to scattered charcoal pre-dispersed liquid, stirs while adding, and is then stirred for 10 minutes.
(4) it is 1.260g/cm 3.5 parts of density to be added into above-mentioned paste mixing machine3Sulfuric acid (impurity iron content is not more than
0.001%, impurity chlorine stirs 10 minutes no more than 0.0003%), then adds appropriate adjustment water, lead plaster is made.Control lead plaster
4.25 ± 0.05g/cm of apparent density3, lead plaster temperature is less than 45 DEG C.
In example 2, although the dosage of charcoal additive adds, but Carbon Materials still can preferably be dispersed in lead plaster
In.
Battery made from embodiment 2 can start locomotive, battery remaining power >=70% after 12 months, without initial charge.
Embodiment 3 (comparative example 1)
For the lead plaster made using the original production technology in workshop as blank control sample (numbering is C), specific make step is as follows：
(1) 100 parts of lead powder, 1.5 parts of barium sulfate, 0.4 part of lignin, 0.05 part of chopped fiber, 0.4 part of humic acid, 0.1 are weighed
Part common graphite and 0.3 part of acetylene black are added in paste mixing machine in the lump, dry-mixed stirring 8 minutes.
(2) 8 parts of pure water are added into above-mentioned mix, are stirred 5 minutes with 1000rpm；
(3) it is 1.260g/cm 10 parts of density to be added into above-mentioned paste mixing machine3Sulfuric acid, stir 8 minutes, then add suitable
When adjustment water, lead plaster is made.Control 4.35 ± 0.05g/cm of apparent density of lead paste3, lead plaster temperature is less than 45 DEG C.
Battery made from embodiment 3 can not start locomotive after 6 months, without initial charge.
Embodiment 4 (comparative example 2)
Selection expanded graphite is electrically conductive graphite, specific surface area 1000m2Activated carbon based on/g, macropore is high-ratio surface
Carbon deposit, the mode for using carbon material directly dry-mixed with lead powder and other auxiliary materials carry out lead plaster making (numbering D2), specific steps
It is as follows：
(1) 100 parts of lead powder, 1.5 parts of barium sulfate, 0.4 part of lignin, 0.4 part of humic acid, 0.05 part of chopped fiber, 0.5 are weighed
Part electrically conductive graphite and 0.5 part of high-ratio surface charcoal are added in paste mixing machine in the lump, dry-mixed stirring 10 minutes.
(2) 8 parts of pure water are added into above-mentioned mix, are stirred 5 minutes with 100rpm；
(3) it is 1.260g/cm 10 parts of density to be added into above-mentioned paste mixing machine3Sulfuric acid, stir 8 minutes, then add suitable
When adjustment water, lead plaster is made.Control 4.35 ± 0.05g/cm of apparent density of lead paste3, lead plaster temperature is less than 45 DEG C.
In sample 2 is compareed, there is the phenomenon reunited in carbon material skewness in lead plaster, Carbon Materials.
Battery made from embodiment 4 can not start locomotive after 6 months, without initial charge.
Embodiment 5
After lead plaster is made in the various embodiments described above and comparative examples, pass through continuous Cast Strip-continuous punching-continuous smear
Production technology, by lead plaster coated on pure stereotype grid, battery negative plate is made, positive plate is assembled into by normal production technology
Battery.
Following table is the charge acceptance and PSoC test results of different schemes battery.A1, A2, A3 use for cathode lead plaster
The battery that embodiment 1 makes, the battery for the lead plaster production that B1, B2, B3 are made for cathode lead plaster using embodiment 2, C1, C2, C3
The battery of the lead plaster production made by original production technology is used for cathode lead plaster.
As can be seen here, the preparation method of cathode lead plaster of the invention, by pre-dispersed mode, by electrically conductive graphite and high-ratio surface
Carbon deposit is dispersed in water or ethanol solution, obtains finely dispersed pre-dispersed suspension.On the one hand, directly done compared to traditional
For mixed technique, pre-dispersed form can promote the dispersion effect of Carbon Materials, avoid Carbon Materials in dry mixing process because close
Spend small and be gathered in lead plaster top layer and situation about reuniting occur.On the other hand, the hydrophily of electrically conductive graphite is often poor, if adopted
With existing dispersion solvent --- water, electrically conductive graphite can still swim in dispersion liquid surface, it is impossible to effectively infiltrate and scattered；Inventor is led to
Cross research to find, when the volume ratio 1 of alcohol and water:When 2~6, dispersion effect of the Carbon Materials in mixed solution is obviously improved, from
And be advantageous to uniform compound between Carbon Materials and lead powder.In addition, the recombination process in the present invention between charcoal dispersion liquid and lead powder
Add during a kind of dispensing is kept stirring for, so can further avoid between Carbon Materials and the lead powder contacted first
Form stronger suction-operated, and caused by Carbon Materials can not effectively disperse.
It is noted that we invents the mixing raw material of wood-charcoal formed from highly conductive graphite and active carbon with high specific surface area
Material, in this course,
1) graphite material of preferred high conductivity, to form efficient electronic conduction passage, the electrochemistry for improving battery is anti-
Answer power；2) preferably specific surface area is big, macropore and mesoporous abundant absorbent charcoal material.On the one hand, big specific surface area is advantageous to
Lead powder is dispersed on Carbon Materials skeleton, forms more preferable conductive network.On the other hand, because lead powder particle characteristic size compared with
Greatly, the effective compound of activated carbon and lead powder is may advantageously facilitate using macropore and mesoporous abundant Carbon Materials, so as to improve charcoal addition
The hole utilization rate of agent；In addition, the sulfate ion size in electrolyte is big, it is difficult to through the micropore in absorbent charcoal material, this
In employ the Carbon Materials that mesoporous and macropore enriches, be also beneficial to ensure the fast transferring of electrolyte intermediate ion.
3) preferred hydrophilic good graphite and absorbent charcoal material.Aqueous electrolyte is used in battery, if Carbon Materials is hydrophilic
Property is poor, can influence the infiltration between electrolyte and active material, cause concentration polarization, local sulfate easily occurs in negative plates
Change serious situation；When Carbon Materials have good hydrophily, be advantageous to the transmission of electrolyte intermediate ion, so as to be advantageous to carry
The ionic conductance characteristic of high battery.
In addition, need strict control for the ratio of conductive agent and activated carbon：If the ratio of graphite is higher, whole negative pole
The hole of pole plate is on the low side, can reduce the composite effect between lead powder and Carbon Materials, agglomeration is than more serious.If activated carbon ratio
Example is higher, and the conductive network continuity of negative plate can reduce；Meanwhile activated carbon ratio increases, the specific surface area of Carbon Materials is mixed
It can improve, electrolyte decomposition phenomenon of losing water can also aggravate.
Furthermore electrically conductive graphite and active carbon with high specific surface area need independent dispersion, independent addition.According to graphite and active raw material of wood-charcoal
Hydrophilic sex differernce between material, the mixed solution of the present invention preferably ratio of water and alcohol, as absorbent charcoal material and graphite
Dispersion solvent, two kinds of Carbon Materials are individually disperseed, form independent charcoal dispersion liquid.Because the hydrophily of graphite is relatively poor, thin
Water-based (i.e. lipophile) is good, and the good hydrophilic property of absorbent charcoal material, hydrophobicity (i.e. lipophile) are poor.If using single water come
Disperse two kinds of Carbon Materials simultaneously, it is clear that activated carbon is can be uniformly dispersed, but the dispersion effect of graphite is then poor, even if using at a high speed
Stirring is also difficult to dispersed；If using single alcohol come and meanwhile disperse two kinds of carbon materials, the dispersion effect of graphite can show
Lifting is write, but the dispersion effect of activated carbon can reduce, and alcohol volatilization is quickly, not easy to operate and control.And in dispersion process
Mixing speed still need to strictly control, excessive velocities cause volatilization aggravate, speed excessively slowly influence dispersion it is uniform.It is being added dropwise
During charcoal pre-dispersed liquid, rate of addition should be strictly controlled, excessive velocities will cause mixed system uneven, reduce activated carbon
Porosity, the facilitation that spread to pole plate intermediate ion of electric double layer effect of activated carbon is influenceed in subsequent process, is easily produced
Green plate polarizes.
In summary, we invents obtained wet lotus maintenance-free battery, and pole plate impurity content is low, and self-discharge of battery speed is bright
It is aobvious to reduce；We invents obtained wet lotus maintenance-free battery, and negative plate depth of discharge is low, and negative plate charging recovery capability is strong.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferable
The present invention is described in detail embodiment, it will be understood by those within the art that, can be to the technology of the present invention
Scheme is modified or equivalent substitution, and without departing from the spirit and scope of technical solution of the present invention, it all should cover in this hair
Among bright right.
Claims (9)
- A kind of 1. preparation method of wet lotus maintenance-free battery cathode lead plaster, it is characterised in that：Including,Auxiliary material, its formula is counted using lead powder quality as 100%, including chopped fiber 0.01~0.2%, barium sulfate 0.2~3%, 0.06 ~1.5% lignin；Lead powder is mixed with the auxiliary material by formula, obtains mix；The lead powder impurity iron content is not more than 0.0005%；Charcoal additive is dispersed in the mixed solution of alcohol and water, stirring forms charcoal pre-dispersed liquid；The water conductivity is little In 1 μ S/cm；The mix and the charcoal pre-dispersed liquid are stirred, sulfuric acid stirring is added, obtains wet lotus maintenance-free battery and bear Pole lead plaster；Impurity iron content is not more than 0.001% in the sulfuric acid, and impurity chlorine is not more than 0.0003%；The sulfuric acid, it is added Amount is by every kilogram of 30~45g of the lead powder addition sulfuric acid；The mixing Carbon Materials that the charcoal additive includes highly conductive graphite and/or high surface area carbon forms.
- 2. the preparation method of wet lotus maintenance-free battery cathode lead plaster according to claim 1, it is characterised in that：Described in the general Mix is stirred with the charcoal pre-dispersed liquid, and it is slow to the mix with the speed no more than 5mL/min Add the charcoal pre-dispersed liquid.
- 3. the preparation method of wet lotus maintenance-free battery cathode lead plaster according to claim 1 or claim 2, it is characterised in that：It is described to stir Mix to form charcoal pre-dispersed liquid, wherein, the mixing speed of the stirring is 400~500rpm.
- 4. the preparation method of wet lotus maintenance-free battery cathode lead plaster according to claim 1, it is characterised in that：It is described to add charcoal Agent is added to be dispersed in the mixed solution of alcohol and water, wherein, the volume ratio of the alcohol and water is 1:2~6.
- 5. the preparation method of wet lotus maintenance-free battery cathode lead plaster, its feature exist according to any one of claim 1,2 or 4 In：The highly conductive graphite includes natural flake graphite or expanded graphite, and its conductance is not less than 2 × 10-6Ω m, its quality For the 0.1~3% of the lead powder quality.
- 6. the preparation method of wet lotus maintenance-free battery cathode lead plaster according to claim 5, it is characterised in that：The Gao Bibiao Area charcoal bag includes activated carbon, and its specific surface area is not less than 500m2/ g, its quality are the 0.1~3% of the lead powder quality.
- A kind of 7. preparation method of wet lotus maintenance-free battery negative plates, it is characterised in that：Including,By wet lotus maintenance-free battery cathode lead plaster made from any one of claim 1,2,4 or 6, by continuous Cast Strip-continuous Wet lotus maintenance-free battery negative plates are made coated on pure stereotype grid in punching press-continuous smear.
- A kind of 8. preparation method of wet lotus maintenance-free battery, it is characterised in that：Including,Using wet lotus maintenance-free battery negative plates made from claim 7, itself and anode plate, barrier film and electrolyte are assembled Into wet lotus maintenance-free battery.
- 9. wet lotus maintenance-free battery made of a kind of preparation method of lotus maintenance-free battery wet according to claim 8, it is special Sign is：The wet lotus maintenance-free battery, its Storage period are more than 12 months.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892411.XA CN107819109A (en) | 2017-09-27 | 2017-09-27 | A kind of preparation method of wet lotus maintenance-free battery and products thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892411.XA CN107819109A (en) | 2017-09-27 | 2017-09-27 | A kind of preparation method of wet lotus maintenance-free battery and products thereof |
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| CN107819109A true CN107819109A (en) | 2018-03-20 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384004A (en) * | 2013-07-05 | 2013-11-06 | 超威电源有限公司 | Storage battery cathode formula and preparation technology thereof |
| CN105336945A (en) * | 2015-09-29 | 2016-02-17 | 双登集团股份有限公司 | High specific energy lead-acid battery production method |
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2017
- 2017-09-27 CN CN201710892411.XA patent/CN107819109A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103384004A (en) * | 2013-07-05 | 2013-11-06 | 超威电源有限公司 | Storage battery cathode formula and preparation technology thereof |
| CN105336945A (en) * | 2015-09-29 | 2016-02-17 | 双登集团股份有限公司 | High specific energy lead-acid battery production method |
Non-Patent Citations (1)
| Title |
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| 王力臻等: ""炭材料对铅酸电池负极电化学性能的影响"", 《电源技术》 * |
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Application publication date: 20180320 |