CN110649260A - Lead-carbon cathode formula rich in high sulfuric acid content - Google Patents
Lead-carbon cathode formula rich in high sulfuric acid content Download PDFInfo
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims description 26
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 18
- 238000009472 formulation Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000006230 acetylene black Substances 0.000 claims description 9
- 229920005610 lignin Polymers 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000013543 active substance Substances 0.000 abstract description 16
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 abstract description 6
- 239000013078 crystal Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 230000000877 morphologic effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 12
- 239000012528 membrane Substances 0.000 description 10
- 239000011149 active material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- OCWMFVJKFWXKNZ-UHFFFAOYSA-L lead(2+);oxygen(2-);sulfate Chemical compound [O-2].[O-2].[O-2].[Pb+2].[Pb+2].[Pb+2].[Pb+2].[O-]S([O-])(=O)=O OCWMFVJKFWXKNZ-UHFFFAOYSA-L 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000013385 inorganic framework Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 238000005670 sulfation reaction Methods 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
-
- 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
-
- 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
- H01M4/621—Binders
- H01M4/622—Binders being polymers
-
- 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
-
- 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
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- 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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- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a lead-carbon cathode formula rich in high sulfuric acid content, which is prepared from the following raw materials: the negative plate prepared by the invention has the advantages that the content of alkali lead sulfate is increased, the content of formed small-particle lead crystals is increased, the active surface area of an active substance is increased, the utilization rate of the active substance is increased, the energy density of the battery is improved, the negative plate is coated on the surface of the active substance, the salinization of a negative electrode is inhibited, a stable conductive network is provided, the cycle life of the battery is prolonged, the negative plate has high viscoelasticity, the morphological characteristics of an inorganic fibrous network are realized, the rapid transmission of ions is facilitated, the high conductivity is realized, the internal resistance of the electrode can be effectively reduced, the high capacity, the high charging and discharging speed and the high-current charging and discharging performance are realized, and the low cost, the high energy density, the high rate performance, the long service life and the safety are realized.
Description
Technical Field
The invention relates to the technical field of lead-carbon cathode formulas rich in high sulfuric acid content, in particular to a lead-carbon cathode formula rich in high sulfuric acid content.
Background
In an energy storage battery based on a high-safety and aqueous electrolyte system, the lead-acid battery has important commercial value due to high reliability, low cost, excellent high and low temperature performance and a recovery rate of more than 98%, but the traditional lead-acid battery has short service life (80% DOD, and l Tt transformation = & &ttt/t >t800 cycles) and cannot meet the requirements of higher power and enough long cycle life (80% DOD cycle number is more than 3000) in the field of energy storage application, so the research on the super lead-acid battery with high power density, high energy density and long cycle service life is urgent increasingly.
The key generally determining the performance of the lead-acid battery is the electrode material, the performance of the lead-acid battery is generally limited by the activity and stability of the positive and negative electrode materials, and mainly comprises 1) the problems of low utilization rate of positive electrode (lead dioxide) active substances and softening, thermal runaway and water loss of the derived positive electrodes, and 2) the problems of poor large-current acceptance, sulfation, low service life, excessive hydrogen evolution and the like of negative electrode (lead) active substances.
In the conventional lead-acid active paste process, the 3BS crystal size depends on the ratio of H2SO4 to LO, the larger the ratio is, the smaller the 3BS particle size is, if the ratio is greater than 10%, a large amount of 3BS and 1 bs.1bs in the lead paste are small in size and fine (1 ~ 3 μm), during the formation of the plate electrode, the formed skeleton structure is small, the construction of a negative electrode conductive network is not facilitated, the reversibility of an active material is reduced, the skeleton is easy to disintegrate during the circulation, if the ratio is greater than 20%, the paste activated by the positive and negative electrode formulas becomes silt-like, and the paste may not match with the post-coating process.
Disclosure of Invention
The lead-acid negative electrode paste formula is invented, which is rich in high-sulfuric-acid-content and high-conductivity carbon, reduces tribasic lead sulfate by increasing the sulfuric acid content, reduces the lead branch contents with the length and width of 3 ~ 10 mu m and 2 ~ 5 mu m respectively generated after formation, reduces an inorganic framework structure, increases the alkali lead sulfate content in a polar plate by the high-sulfuric-acid-content and paste, increases the small-particle lead crystal content after formation, improves the active surface area of an active substance, and accordingly improves the utilization of the active substance.
Meanwhile, the linear high molecular polymer is adopted as the active substance binder, and the advantages are that: 1) the polymer has stable chemical properties and can be stably stored in a sulfuric acid solution; 2) the high polymer has a long molecular chain, can form a continuous staggered three-dimensional fiber network after open milling and shearing, has good adhesion and adhesive force to small-particle active substances, and greatly enhances the mechanical strength of a polar plate.
The invention aims to provide a lead-carbon cathode formula rich in high sulfuric acid content, which takes lead monoxide powder as a main body and designs and adds a lead acid formula rich in high sulfuric acid content and high conductive carbon so as to improve the utilization rate and the conductivity of active substances of a polar plate; meanwhile, the high molecular polymer with good plasticity and high fiberization degree is used as the adhesive, so that an inorganic framework structure is provided for the polar plate, and the mechanical property of the polar plate is improved. The formula is applied to the negative electrode of the lead-acid battery to prepare the lead-acid sealed valve-controlled battery with high energy, high power and long cycle life, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme that the lead-carbon cathode formula rich in high sulfuric acid content is prepared from the following raw materials, by mass, 100kg of lead powder, 1 ~ 10kg of high-molecular polymer, 10 ~ 40kg of sulfuric acid, 2 ~ 10kg of acetylene black, 0.2 ~ 1kg of lignin and 0.8 ~ 2kg of barium sulfate.
Preferably, the lead powder has the oxidation degree of 74 ~ 78% and the particle size of 120 ~ 160 mu m.
Preferably, the high molecular polymer is in a polytetrafluoroethylene emulsion state, the weight of the components of the polytetrafluoroethylene is 3 ~ 6kg, the solid content of the high molecular polymer is 50% to ~ 60%, the melt index of the high molecular polymer is 3 ~ 10, the melting point of the high molecular polymer is 320 ~ 340 ℃, and the particle size of the high molecular polymer is 5-100 μm.
Preferably, the density of the sulfuric acid solution is 1.4g/mL, and the weight of the sulfuric acid component is 10 ~ 20 kg.
Preferably, the particle size of the acetylene black is 7 ~ 30 μm, and the weight of the components is 2 ~ 5 kg.
Preferably, the lignin component has a weight of 0.2 ~ 0.5.5 kg.
Preferably, the barium sulfate component is in the weight range of 0.8 ~ 1.6.6 kg.
Compared with the prior art, the invention has the beneficial effects that:
(1) the content of the alkali lead sulfate in the prepared negative plate is increased, the content of the formed small-particle lead crystals is increased, and the active surface area of the active substance is increased, so that the utilization rate of the active substance is increased, and the energy density of the battery is improved.
(2) The obtained negative plate of the battery has high content of conductive agent, is coated on the surface of an active substance, inhibits the salinization of the negative plate, provides a stable conductive network and prolongs the cycle life of the battery.
(3) The obtained negative plate of the battery has high viscoelasticity, has the shape characteristic of an inorganic fibrous network, is beneficial to the rapid transmission of ions, has high conductivity, and can effectively reduce the internal resistance of the electrode, thereby realizing higher capacity, charge-discharge speed and high-current charge-discharge performance.
(4) The obtained novel battery can simultaneously realize low cost, high energy density, high rate performance, long service life and safety through a design structure.
Drawings
FIG. 1 is a photograph of a negative paste roll-milled film.
FIG. 2 is a SEM photograph of a cross section of a membrane.
Fig. 3 is a photograph of the hot-pressed negative plate.
FIG. 4 is SEM photographs of the cross sections of the negative electrode plates of the formulations 1 (a), 2 (b) and 3 (c).
Fig. 5 is a schematic diagram of the ac impedance curves of the plates of formulations 1-3.
Fig. 6 is a graph showing the discharge capacity curves of the plates of formulations 1-3.
Fig. 7 is a schematic of the cycle life of the formulation 2 battery.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides a technical scheme that a lead-carbon cathode formula rich in high sulfuric acid content is prepared from 100kg of lead powder, 1 ~ 10kg of high molecular polymer, 10 ~ 40kg of sulfuric acid, 2 ~ 10kg of acetylene black, 0.2 ~ 1kg of lignin and 0.8 ~ 2kg of barium sulfate by mass.
The high molecular polymer is in a polytetrafluoroethylene emulsion state, the weight of the components of the polytetrafluoroethylene is 3 ~ 6kg, the solid content of the high molecular polymer is 50% ~ 60%, the melt index of the high molecular polymer is 3 ~ 10, the melting point of the high molecular polymer is 320 ~ 340 ℃, the particle size of the high molecular polymer is 5-100 mu m, more preferably, the particle size of the high molecular polymer is 5-50 mu m, the density of a sulfuric acid solution is 1.4g/mL, the weight of the sulfuric acid component is within a range of 10 ~ 20kg, the particle size of acetylene black is 7 ~ 30 mu m, the weight of the components is 2 ~ 5kg, the weight of a lignin component is 0.2 ~ 0.5.5 kg, and the weight of a barium sulfate component is within a range of 0.8 ~ 1.6 kg.
Example 1: [ FORMULATION 1 ]
A lead-carbon negative electrode formula rich in high sulfuric acid content is prepared from the following raw materials in parts by mass: 100kg of lead powder, 5kg of high molecular polymer, 10kg of sulfuric acid, 2kg of acetylene black, 0.22kg of lignin and 1kg of barium sulfate.
When the sulfuric acid is concentrated sulfuric acid and paste is prepared, the sulfuric acid is diluted to a sulfuric acid solution with the density of 1.4g/mL and then used.
The preparation method of the embodiment comprises the following steps:
the raw materials are added in proportion by using a V-shaped mixer for dry mixing at the mixing speed within 1000rpm, the mixed powder is transferred into a kneader, water and sulfuric acid solution (1.4g/mL) are respectively sprayed in, and finally colloid emulsion is sprayed in, the solid content of the kneaded paste is 80% ~ 90%, then the paste is milled into a membrane through a milling and fine-extending process, the membrane is pressed into a dense and uniform membrane through a two-roll calender, the thickness range of the membrane is 1-2mm, the solid content of the membrane is 81% ~ 91%, a membrane forming picture is shown in figure 1, the thickness error of the whole membrane is observed to be not more than 0.03mm, the internal structure of the membrane is observed by adopting an SEM (scanning electron microscope) in figure 2, the colloid can be clearly seen to be cut into a fiber network to wrap active substances in the fiber network, but the diffusion of electrolyte among the electrode active substances is not influenced, the milled membrane and a grid are heated to 310 ℃ through a channel kiln, then a flat plate vulcanizer is used for pressing for 1min, and figure 3 is a prepared negative plate picture.
Example 2: [ FORMULATION 2 ]
A lead-carbon negative electrode formula rich in high sulfuric acid content is prepared from the following raw materials in parts by mass: 100kg of lead powder, 5kg of high molecular polymer, 20kg of sulfuric acid, 2kg of acetylene black, 0.22kg of lignin and 1kg of barium sulfate.
When the sulfuric acid is concentrated sulfuric acid and paste is prepared, the sulfuric acid is diluted to a sulfuric acid solution with the density of 1.4g/mL and then used.
The negative electrode plate was produced in the same manner as in example one.
Example 3: [ FORMULATION 3 ]
A lead-carbon negative electrode formula rich in high sulfuric acid content is prepared from the following raw materials in parts by mass: 100kg of lead powder, 5kg of high molecular polymer, 30kg of sulfuric acid, 2kg of acetylene black, 0.22kg of lignin and 1kg of barium sulfate.
When the sulfuric acid is concentrated sulfuric acid and paste is prepared, the sulfuric acid is diluted to a sulfuric acid solution with the density of 1.4g/mL and then used.
The negative electrode plate was produced in the same manner as in example one.
In fig. 4 (a, b, c) are SEM photographs of the cross-sections of the plates of formulations 1, 2 and 3 under the same plate-making conditions, and it can be seen from the figure that the active material of formulation 2 has the smallest particle size, since tribasic lead sulfate is mainly formed at a low sulfuric acid content and during the paste-making process, the particle size is 1 ~ 3 μm, tribasic lead sulfate is reduced and basic lead sulfate is increased as the sulfuric acid content increases, and the particle size is smaller than 1 μm, but excessive sulfuric acid generates lead sulfate, which causes lead sulfate crystal agglomeration and increases the particle size.
Electrochemical testing:
fig. 5 is a comparison of ac impedance of formulas 1, 2 and 3 under the same plate-making condition, from which it can be seen that the influence of the sulfuric acid content of the formula on the internal resistance of charge transfer and the internal resistance of diffusion of the battery plate can be seen, firstly, formula 1 is larger than formula 2 in the internal resistance of charge transfer, but the difference is smaller, and formula 3 is the largest in the internal resistance of charge transfer and the internal resistance of diffusion. On the other hand, as can be seen from the discharge capacity of the electrode plates with different sulfuric acid contents in fig. 6, the gram capacity of the active material in the formula 2 is the highest, and reaches 105mAh/g, which is far higher than 80 mAh/g of the traditional lead acid.
To demonstrate the effect of the formulation of the present invention on the cycle life of the battery, we assembled the plates of formulation 2 into a 12V20Ah battery, and examined its cycle stability through charge and discharge cycles, as shown in fig. 7. The capacity of the battery is kept at 25Ah, the gram capacity of the active substance is 110mAh/g, the capacity retention rate of 500 cycles is more than 85%, and the capacity retention rate of 500 cycles of the traditional lead-acid 12V20V battery is more than 65%.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The formula of the lead-carbon cathode rich in high sulfuric acid content is characterized by being prepared from the following raw materials, by mass, 100kg of lead powder, 1 ~ 10kg of high molecular polymer, 10 ~ 40kg of sulfuric acid, 2 ~ 10kg of acetylene black, 0.2 ~ 1kg of lignin and 0.8 ~ 2kg of barium sulfate.
2. The high-sulfuric-acid-content lead-carbon negative electrode formulation as claimed in claim 1, wherein the lead powder has an oxidation degree of 74 ~ 78% and a particle size of 120 ~ 160 μm.
3. The high-sulfuric-acid-content lead-carbon negative electrode formula as claimed in claim 1, wherein the high molecular polymer is in the form of polytetrafluoroethylene emulsion, the weight of the polytetrafluoroethylene is 3 ~ 6kg, the solid content of the high molecular polymer is 50% ~ 60%, the melt index of the high molecular polymer is 3 ~ 10, the melting point of the high molecular polymer is 320 ~ 340 ℃, and the particle size of the high molecular polymer is 5-100 μm.
4. The high-sulfuric-acid-content lead-carbon negative electrode formulation as claimed in claim 1, wherein the sulfuric acid solution has a density of 1.4g/mL, and the weight of the sulfuric acid component is in the range of 10 ~ 20 kg.
5. The high-sulfuric-acid-content lead-carbon negative electrode formula is characterized in that the acetylene black has the particle size of 7 ~ 30 microns, and the weight of the components is 2 ~ 5 kg.
6. The high-sulfuric-acid-content lead-carbon negative electrode formula is characterized in that the weight of the lignin component is 0.2 ~ 0.5.5 kg.
7. The high-sulfuric-acid-content lead-carbon negative electrode formulation as claimed in claim 1, wherein the weight range of the barium sulfate component is 0.8 ~ 1.6.6 kg.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003308836A (en) * | 2002-04-15 | 2003-10-31 | Shin Kobe Electric Mach Co Ltd | Method of manufacturing pasty active material for negative electrode and lead-acid battery using it |
| CN104377358A (en) * | 2014-10-15 | 2015-02-25 | 超威电源有限公司 | Deep-cycle-resistant lead-acid storage battery cathode lead paste formula and preparation process thereof |
| CN104393250A (en) * | 2014-10-22 | 2015-03-04 | 南京航空航天大学 | Preparation method for lead-carbon composite material of lead acid battery and composite negative plate |
| CN104900876A (en) * | 2015-05-19 | 2015-09-09 | 江苏苏中电池科技发展有限公司 | A novel graphene anode active compound used for lead-acid storage batteries and a preparing method thereof |
| CN107565086A (en) * | 2016-06-30 | 2018-01-09 | 南通沃德材料科技有限公司 | Preparation method of battery pole plate |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003308836A (en) * | 2002-04-15 | 2003-10-31 | Shin Kobe Electric Mach Co Ltd | Method of manufacturing pasty active material for negative electrode and lead-acid battery using it |
| CN104377358A (en) * | 2014-10-15 | 2015-02-25 | 超威电源有限公司 | Deep-cycle-resistant lead-acid storage battery cathode lead paste formula and preparation process thereof |
| CN104393250A (en) * | 2014-10-22 | 2015-03-04 | 南京航空航天大学 | Preparation method for lead-carbon composite material of lead acid battery and composite negative plate |
| CN104900876A (en) * | 2015-05-19 | 2015-09-09 | 江苏苏中电池科技发展有限公司 | A novel graphene anode active compound used for lead-acid storage batteries and a preparing method thereof |
| CN107565086A (en) * | 2016-06-30 | 2018-01-09 | 南通沃德材料科技有限公司 | Preparation method of battery pole plate |
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