CN113394399A - Positive electrode lead plaster and lead storage battery - Google Patents
Positive electrode lead plaster and lead storage battery Download PDFInfo
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- CN113394399A CN113394399A CN202110557499.6A CN202110557499A CN113394399A CN 113394399 A CN113394399 A CN 113394399A CN 202110557499 A CN202110557499 A CN 202110557499A CN 113394399 A CN113394399 A CN 113394399A
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- lead
- storage battery
- positive electrode
- positive
- electrode lead
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- 239000011505 plaster Substances 0.000 title claims abstract description 32
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002253 acid Substances 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 claims abstract description 16
- 235000012217 sodium aluminium silicate Nutrition 0.000 claims abstract description 16
- 239000000429 sodium aluminium silicate Substances 0.000 claims abstract description 16
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 12
- 230000000996 additive effect Effects 0.000 claims abstract description 12
- RCIVOBGSMSSVTR-UHFFFAOYSA-L stannous sulfate Chemical compound [SnH2+2].[O-]S([O-])(=O)=O RCIVOBGSMSSVTR-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229910000375 tin(II) sulfate Inorganic materials 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 34
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 14
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 10
- 239000006230 acetylene black Substances 0.000 claims description 10
- 239000004021 humic acid Substances 0.000 claims description 10
- 229920005610 lignin Polymers 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 4
- 239000011133 lead Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 description 30
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 238000001723 curing Methods 0.000 description 12
- 230000005484 gravity Effects 0.000 description 12
- 238000012216 screening Methods 0.000 description 12
- 238000005507 spraying Methods 0.000 description 12
- 239000011149 active material Substances 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 238000002224 dissection Methods 0.000 description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 239000013543 active substance Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical compound NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229960003966 nicotinamide Drugs 0.000 description 1
- 235000005152 nicotinamide Nutrition 0.000 description 1
- 239000011570 nicotinamide Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229960001922 sodium perborate Drugs 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
-
- 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
- H01M10/121—Valve regulated lead acid batteries [VRLA]
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses positive lead plaster and a lead storage battery, and belongs to the technical field of lead storage batteries. The purpose of the present invention is to further increase the positive electrode capacity of a lead-acid battery. The positive lead plaster comprises lead powder and an additive, wherein the additive comprises 0.08-0.1% of short fiber, 0.09-0.11% of stannous sulfate, 2-3% of red lead, 0.04-0.06% of sodium aluminosilicate and 0.3-0.4% of graphite by mass of the lead powder. The average capacity of the lead storage battery prepared by the anode lead plaster is improved by at least 4.47 percent.
Description
Technical Field
The invention belongs to the technical field of lead storage batteries, and particularly relates to positive lead plaster and a lead storage battery.
Background
Lead accumulator is wide application in fields such as energy storage, communication since birth, but along with the development of science and technology, more and more novel battery is gushed into the market, and lead accumulator's application advantage is weakened gradually, and how under the prerequisite that keeps its price advantage, improve lead accumulator's competitiveness, then become the problem that each battery enterprise need not to solve urgently.
The positive plate and the negative plate are key components of the lead storage battery, and the quality of the positive plate and the negative plate is directly related to the discharge capacity and the service life of the lead storage battery. With the rapid development of the automobile industry, higher requirements are put on the quality of the lead storage battery. Users of lead storage batteries place higher demands on the gravimetric energy of the lead storage batteries. The lead storage battery with the same weight can emit more capacity to be favored by more customers. From the cost perspective, enterprises can improve the competitiveness of enterprise products by properly reducing the usage amount of lead paste under the target capacity.
The valve-controlled lead accumulator is also called poor liquid lead accumulator. In order to ensure that oxygen gas separated out from the positive electrode of the valve-regulated lead storage battery in the charging process can be absorbed by the negative sponge lead through the oxygen channel, the negative plates are more than the positive plates in the battery unit cell of the lead storage battery, so that all the positive plates are positioned on the inner side of the negative plate, and the capacity of the single negative plate is slightly higher than that of the positive plate. Therefore, the valve-regulated lead acid battery is easily limited by the capacity of the positive electrode plate and the electrolyte during the discharge process.
For the above reasons, manufacturers often increase the mass energy density of the lead storage battery by reducing the usage amount of the negative electrode lead paste, adjusting the formula of the positive electrode lead paste of the valve-regulated lead storage battery to increase the utilization rate of the active material in the positive electrode plate and adjusting the stock of the electrolyte. The mode of improving the utilization rate of active substances in the positive plate by adjusting the formula of the positive lead paste of the valve-controlled lead storage battery is more effective, and the product market competitiveness of enterprises can be stronger.
Patent document (CN 109273712A) discloses a lead storage battery anode lead plaster and a preparation method thereof, belonging to the technical field of storage batteries, wherein the anode lead plaster comprises lead powder, an additive, water and a sulfuric acid solution, wherein the additive comprises 3-7 parts of lead dioxide, (iso) niacinamide 0.001-0.1 part, 0.01-0.5 part of polyester fiber, 0.02-0.5 part of antimony trioxide, 0.02-0.5 part of stannous sulfate and 0.02-0.2 part of a carbon material, wherein the weight part of the lead powder is 100 parts.
Patent document (CN 111416123A) discloses an additive for improving the performance of lead paste of a positive electrode of a lead-acid storage battery, which comprises 30-50 wt% of colloidal graphite, 20-40 wt% of tetrabasic lead sulfate (4BS), 5-10 wt% of antimony trioxide, 9-19 wt% of sodium perborate, 3-5 wt% of polyaniline and 1-3 wt% of PVDF, wherein the mass percentages of the components are as follows; the using amount of the additive is 0.5-1.5 wt% of the mass of the lead powder, wherein the colloidal graphite is in a powder shape with the grain diameter of less than or equal to 2 mu m, the tetrabasic lead sulfate is in a powder shape with the grain diameter of less than or equal to 20 mu m, and the additive is added in the dry mixing process of paste after premixing.
Therefore, the method for modifying the positive lead plaster by adopting the additive is an effective method for improving the performance of the lead storage battery.
Disclosure of Invention
A positive electrode lead paste and a lead storage battery are provided, which aim to further improve the capacity of the lead storage battery.
The positive lead plaster comprises lead powder and an additive, wherein the additive comprises 0.08-0.1% of short fiber, 0.09-0.11% of stannous sulfate, 2-3% of red lead, 0.04-0.06% of sodium aluminosilicate and 0.3-0.4% of graphite by mass of the lead powder.
The positive lead plaster also comprises water and sulfuric acid with the density of 1.4g/mL, wherein the mass of the lead powder is 11-11.5% of the water, and the mass of the sulfuric acid is 9-9.8%.
The particle size of the sodium aluminosilicate is 0.05-0.20 μm.
The paste mixing process of the positive electrode lead paste is as follows: mixing lead powder, short fiber, stannous sulfate, red lead, sodium aluminosilicate and graphite, adding water, stirring, and finally adding sulfuric acid and stirring.
Mixing for 3-5 min; adding water and stirring for 6-10 min; adding sulfuric acid, and stirring for 10 min.
The lead storage battery comprises positive lead plaster and negative lead plaster, wherein the negative lead plaster comprises 1% of barium sulfate, 0.3% of lignin, 0.1% of humic acid, 0.4% of acetylene black, 0.1% of fiber, 11.3% of water and 8.6% of sulfuric acid with the density of 1.40 g/mL.
The paste mixing process of the negative electrode lead paste is as follows: mixing lead powder, barium sulfate, lignin, humic acid, acetylene black and fiber, adding water, stirring, and finally adding sulfuric acid and stirring.
The prepared positive lead plaster is suitable for valve-regulated lead storage batteries for non-deep circulation. The sodium aluminosilicate has a porous structure, so that the porosity of the positive lead plaster is improved, and the utilization rate of active substances in the positive lead plaster is improved; meanwhile, the sodium aluminosilicate has an adsorption effect on sulfuric acid, so that the sulfuric acid required in the reaction of the lead storage battery can be adsorbed, and the capacity of the lead storage battery is improved.
Compared with the prior art, the invention has the following advantages:
according to the method, the sodium aluminosilicate is added into the positive lead powder, so that the porosity of the positive lead plaster is improved, and the utilization rate of active substances in the positive lead plaster is improved; can adsorb sulfuric acid required in the reaction of the lead storage battery, and improves the capacity of the lead storage battery.
Detailed Description
Example 1
Mixing lead powder, short fiber 0.09%, stannous sulfate 0.1%, red lead 2.5%, sodium aluminosilicate 0.05% and graphite 0.35% for 3-5min, adding water 11.5% within 1-3min, stirring for 6-10min, adding sulfuric acid 9.4% with density of 1.40g/mL within 15-18min, stirring for 10min, adding appropriate amount of regulated water to obtain lead powder with apparent specific gravity of 4.30g/cm3The positive electrode lead paste. Coating the positive lead plaster on a positive grid, and preparing the positive green plate by acid spraying, surface drying, curing, drying, slicing and screening.
Based on the mass of the lead powder, the barium sulfate 1 percent, the lignin 0.3 percent, the humic acid 0.1 percent, the acetylene black 0.4 percent and the fiber 0.1 percent are evenly mixed, 11.3 percent of water is added for stirring, finally 8.6 percent of sulfuric acid with the density of 1.40g/mL is added for stirring, and a proper amount of adjusting water is added to obtain the lead powder with the apparent specific gravity of 4.35g/cm3The negative electrode lead paste of (1). Coating the negative lead plaster on a negative grid, and preparing the negative plate by acid spraying, surface drying, curing, drying, slicing and screening.
Subjecting the above to normal growthAnd assembling the polar plate and the negative green polar plate into a semi-finished lead storage battery with the model number of 6-FM-100, and adding acid into the prepared semi-finished lead storage battery, forming and fully charging to obtain the lead storage battery. The lead storage battery obtained was subjected to a capacity test: discharging at 25 + -2 deg.C with 5A current to average cell voltage of 1.75V/cell, and filling. The first 3 discharge capacities were recorded and the results are shown in table 1; 4 th time with current C20A was discharged and the discharge time was recorded, and the results are shown in Table 1.
Charging the lead storage battery 2 after 4 times of discharge at constant voltage of 14.7V/limited current of 0.2C20And A, continuously charging for 10 hours, standing for 2 hours, and then dissecting the lead storage battery. Taking the positive plate after dissection, washing the positive plate for more than 2 hours by using flowing water, and drying the washed positive plate at 100 ℃. The positive plate active material was tested for porosity by mercury intrusion method and the results are shown in table 1.
Comparative example 1
Mixing lead powder, short fiber 0.09%, stannous sulfate 0.1%, red lead 2.5% and graphite 0.35% for 3-5min, adding water 11.5% within 1-3min, stirring for 6-10min, adding sulfuric acid 9.4% with density of 1.40g/mL within 15-18min, stirring for 10min, adding appropriate amount of regulated water to obtain the final product with apparent specific gravity of 4.30g/cm3The lead paste of (1). Coating the lead plaster on a positive grid, and preparing a positive green plate by acid spraying, surface drying, curing, drying, slicing and screening.
Based on the mass of the lead powder, the barium sulfate 1 percent, the lignin 0.3 percent, the humic acid 0.1 percent, the acetylene black 0.4 percent and the fiber 0.1 percent are evenly mixed, 11.3 percent of water is added for stirring, finally 8.6 percent of sulfuric acid with the density of 1.40g/mL is added for stirring, and a proper amount of adjusting water is added to obtain the lead powder with the apparent specific gravity of 4.35g/cm3The negative electrode lead paste of (1). Coating the negative lead plaster on a negative grid, and preparing the negative plate by acid spraying, surface drying, curing, drying, slicing and screening.
And assembling the positive green plate and the negative green plate into a semi-finished lead storage battery with the model of 6-FM-100, and adding acid into the prepared semi-finished lead storage battery, forming and fully charging to obtain the lead storage battery. The lead storage battery obtained was subjected to a capacity test: under the environment of 25 plus or minus 2 ℃,discharging at 5A until the average cell voltage is 1.75V/cell, and fully charging. The first 3 discharge capacities were recorded and the results are shown in table 1; 4 th time with current C20A was discharged and the discharge time was recorded, and the results are shown in Table 1.
Charging the lead storage battery 2 after 4 times of discharge at constant voltage of 14.7V/limited current of 0.2C20A was continuously charged for 10 hours. And (4) after standing for 2 hours, dissecting the lead storage battery. Taking the positive plate after dissection, washing the positive plate for more than 2 hours by using flowing water, and drying the washed positive plate at 100 ℃. The positive plate active material was tested for porosity by mercury intrusion method and the results are shown in table 1.
Example 2
Mixing lead powder, short fiber 0.08%, stannous sulfate 0.09%, red lead 2%, sodium aluminosilicate 0.04% with particle size of 0.05-0.20 μm and graphite 0.3% for 3-5min, adding water 11.5% within 1-3min, stirring for 6-10min, adding sulfuric acid 9% with density of 1.40g/mL within 15-18min, stirring for 10min, adding appropriate amount of regulated water to obtain specific gravity of 4.25g/cm3The lead paste of (1). Coating the lead plaster on a positive grid, and preparing a positive green plate by acid spraying, surface drying, curing, drying, slicing and screening.
Based on the mass of the lead powder, the barium sulfate 1 percent, the lignin 0.3 percent, the humic acid 0.1 percent, the acetylene black 0.4 percent and the fiber 0.1 percent are evenly mixed, 11.3 percent of water is added for stirring, finally 8.6 percent of sulfuric acid with the density of 1.40g/mL is added for stirring, and a proper amount of adjusting water is added to obtain the lead powder with the apparent specific gravity of 4.35g/cm3The negative electrode lead paste of (1). Coating the negative lead plaster on a negative grid, and preparing the negative plate by acid spraying, surface drying, curing, drying, slicing and screening.
And assembling the positive green plate and the negative green plate into a semi-finished lead storage battery with the model of 6-FM-100, and adding acid into the prepared semi-finished lead storage battery, forming and fully charging to obtain the lead storage battery. The lead storage battery obtained was subjected to a capacity test: discharging at 25 + -2 deg.C with 5A current to average cell voltage of 1.75V/cell, and filling. The first 3 discharge capacities were recorded and the results are shown in table 1; 4 th time with current C20A, discharging, recording discharge time, and forming junctionThe results are shown in Table 1.
Charging the lead storage battery 2 after 4 times of discharge at constant voltage of 14.7V/limited current of 0.2C20A was continuously charged for 10 hours. And (4) after standing for 2 hours, dissecting the lead storage battery. Taking the positive plate after dissection, washing the positive plate for more than 2 hours by using flowing water, and drying the washed positive plate at 100 ℃. The positive plate active material was tested for porosity by mercury intrusion method and the results are shown in table 1.
Comparative example 2
Mixing lead powder, short fiber 0.08%, stannous sulfate 0.09%, red lead 2% and graphite 0.3% for 3-5min, adding water 11.5% within 1-3min, stirring for 6-10min, adding sulfuric acid 9% with density of 1.40g/mL within 15-18min, stirring for 10min, adding appropriate amount of regulated water to obtain the final product with apparent specific gravity of 4.25g/cm3The lead paste of (1). Coating the lead plaster on a positive grid, and preparing a positive green plate by acid spraying, surface drying, curing, drying, slicing and screening.
Based on the mass of the lead powder, the barium sulfate 1 percent, the lignin 0.3 percent, the humic acid 0.1 percent, the acetylene black 0.4 percent and the fiber 0.1 percent are evenly mixed, 11.3 percent of water is added for stirring, finally 8.6 percent of sulfuric acid with the density of 1.40g/mL is added for stirring, and a proper amount of adjusting water is added to obtain the lead powder with the apparent specific gravity of 4.35g/cm3The negative electrode lead paste of (1). Coating the negative lead plaster on a negative grid, and preparing the negative plate by acid spraying, surface drying, curing, drying, slicing and screening.
And assembling the positive green plate and the negative green plate into a semi-finished lead storage battery with the model of 6-FM-100, and adding acid into the prepared semi-finished lead storage battery, forming and fully charging to obtain the lead storage battery. The lead storage battery obtained was subjected to a capacity test: discharging at 25 + -2 deg.C with 5A current to average cell voltage of 1.75V/cell, and filling. The first 3 discharge capacities were recorded and the results are shown in table 1; 4 th time with current C20A was discharged and the discharge time was recorded, and the results are shown in Table 1.
Charging the lead storage battery 2 after 4 times of discharge at constant voltage of 14.7V/limited current of 0.2C20A was continuously charged for 10 hours. After standing for 2 hours, dissecting the lead storage battery. Taking the positive plate after dissection, washing the positive plate for more than 2 hours by using flowing water, and drying the washed positive plate at 100 ℃. The positive plate active material was tested for porosity by mercury intrusion method and the results are shown in table 1.
Example 3
Mixing lead powder, short fiber 0.1%, stannous sulfate 0.11%, red lead 3%, sodium aluminosilicate 0.06% with particle size of 0.05-0.20 μm and graphite 0.4% for 3-5min, adding water 11% within 1-3min, stirring for 6-10min, adding sulfuric acid 9.8% with density of 1.40g/mL within 15-18min, stirring for 10min, adding appropriate amount of regulated water to obtain specific gravity of 4.35g/cm3The lead paste of (1). Coating the lead plaster on a positive grid, and preparing a positive green plate by acid spraying, surface drying, curing, drying, slicing and screening.
Based on the mass of the lead powder, the barium sulfate 1 percent, the lignin 0.3 percent, the humic acid 0.1 percent, the acetylene black 0.4 percent and the fiber 0.1 percent are evenly mixed, 11.3 percent of water is added for stirring, finally 8.6 percent of sulfuric acid with the density of 1.40g/mL is added for stirring, and a proper amount of adjusting water is added to obtain the lead powder with the apparent specific gravity of 4.35g/cm3The negative electrode lead paste of (1). Coating the negative lead plaster on a negative grid, and preparing the negative plate by acid spraying, surface drying, curing, drying, slicing and screening.
And assembling the positive green plate and the negative green plate into a semi-finished lead storage battery with the model of 6-FM-100, and adding acid into the prepared semi-finished lead storage battery, forming and fully charging to obtain the lead storage battery. The lead storage battery obtained was subjected to a capacity test: discharging at 25 + -2 deg.C with 5A current to average cell voltage of 1.75V/cell, and filling. The first 3 discharge capacities were recorded and the results are shown in table 1; 4 th time with current C20A was discharged and the discharge time was recorded, and the results are shown in Table 1.
Charging the lead storage battery 2 after 4 times of discharge at constant voltage of 14.7V/limited current of 0.2C20A was continuously charged for 10 hours. And (4) after standing for 2 hours, dissecting the lead storage battery. Taking the positive plate after dissection, washing the positive plate for more than 2 hours by using flowing water, and drying the washed positive plate at 100 ℃. The positive plate active material was tested for porosity by mercury intrusion method and the results are shown in Table 1。
Comparative example 3
Mixing lead powder, short fiber 0.1%, stannous sulfate 0.11%, red lead 3% and graphite 0.4% for 3-5min, adding water 11% within 1-3min, stirring for 6-10min, adding sulfuric acid 9.8% with density of 1.40g/mL within 15-18min, stirring for 10min, adding appropriate amount of adjusting water to obtain the final product with specific gravity of 4.35g/cm3The lead paste of (1). Coating the lead plaster on a positive grid, and preparing a positive green plate by acid spraying, surface drying, curing, drying, slicing and screening.
Based on the mass of the lead powder, the barium sulfate 1 percent, the lignin 0.3 percent, the humic acid 0.1 percent, the acetylene black 0.4 percent and the fiber 0.1 percent are evenly mixed, 11.3 percent of water is added for stirring, finally 8.6 percent of sulfuric acid with the density of 1.40g/mL is added for stirring, and a proper amount of adjusting water is added to obtain the lead powder with the apparent specific gravity of 4.35g/cm3The negative electrode lead paste of (1). Coating the negative lead plaster on a negative grid, and preparing the negative plate by acid spraying, surface drying, curing, drying, slicing and screening.
And assembling the positive green plate and the negative green plate into a semi-finished lead storage battery with the model of 6-FM-100, and adding acid into the prepared semi-finished lead storage battery, forming and fully charging to obtain the lead storage battery. The lead storage battery obtained was subjected to a capacity test: discharging at 25 + -2 deg.C with 5A current to average cell voltage of 1.75V/cell, and filling. The first 3 discharge capacities were recorded and the results are shown in table 1; 4 th time with current C20A was discharged and the discharge time was recorded, and the results are shown in Table 1.
Charging the lead storage battery 2 after 4 times of discharge at a constant voltage of 14.70V/limited current of 0.20C20A was continuously charged for 10 hours. And (3) after standing for 2 hours, carrying out the de-dissection on the lead storage battery. Taking the positive plate after dissection, washing the positive plate with flowing water for more than 2 hours, and drying the washed positive plate at 100 ℃. The positive plate active material was tested for porosity by mercury intrusion method and the results are shown in table 1.
TABLE 1 lead-acid battery Performance test results
The results of the experiments in Table 1 show that the average capacity of the lead storage battery is increased by 5.53% when 0.1% of sodium aluminosilicate is added, and C is20The Ah discharge time is improved by 6.85 percent, and the porosity of the active material of the positive plate is improved by 5.71 percent; when 0.09% of sodium aluminosilicate is added, the average capacity of the lead storage battery is improved by 6.85%, and C20The Ah discharge time is improved by 8.30%, and the porosity of the positive plate active material is improved by 5.44%; when 0.11% of sodium aluminosilicate is added, the average capacity of the lead storage battery is improved by 4.47%, and C20The Ah discharge time is improved by 8.25%, and the porosity of the active material of the positive plate is improved by 6.63%.
Claims (10)
1. The positive lead plaster comprises lead powder and an additive, and is characterized in that the additive comprises, by mass of the lead powder, 0.08-0.1% of short fibers, 0.09-0.11% of stannous sulfate, 2-3% of red lead, 0.04-0.06% of sodium aluminosilicate and 0.3-0.4% of graphite.
2. The positive electrode lead paste according to claim 1, further comprising water and sulfuric acid having a density of 1.4g/mL, wherein the water accounts for 11 to 11.5% by mass of the lead powder, and the sulfuric acid accounts for 9 to 9.8% by mass of the lead powder.
3. The positive electrode lead paste according to claim 1, wherein the sodium aluminosilicate has a particle size of 0.05 to 0.20 μm.
4. The positive electrode lead paste of claim 1, wherein the positive electrode lead paste is prepared by the following process: mixing lead powder, short fiber, stannous sulfate, red lead, sodium aluminosilicate and graphite, adding water, stirring, and finally adding sulfuric acid and stirring.
5. The positive electrode lead paste according to claim 4, wherein the mixing time is 3 to 5 min.
6. The positive electrode lead paste according to claim 4, wherein water is added and stirred for 6-10 min.
7. The positive electrode lead paste according to claim 4, wherein the sulfuric acid is added and stirred for 10 min.
8. A lead-acid battery comprising a positive electrode lead paste and a negative electrode lead paste, wherein the positive electrode lead paste is the positive electrode lead paste according to any one of claims 1 to 7.
9. The lead-acid battery as claimed in claim 8, wherein the negative electrode lead paste comprises, by mass of lead powder, 1% of barium sulfate, 0.3% of lignin, 0.1% of humic acid, 0.4% of acetylene black, 0.1% of fiber, 11.3% of water and 8.6% of sulfuric acid having a density of 1.40 g/mL.
10. The lead acid battery as set forth in claim 9, wherein the negative electrode lead paste is kneaded by the following process: mixing lead powder, barium sulfate, lignin, humic acid, acetylene black and fiber, adding water, stirring, and finally adding sulfuric acid and stirring.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173956A (en) * | 1983-03-23 | 1984-10-02 | Matsushita Electric Ind Co Ltd | Manufacture of pasted lead plate |
| JPS59180971A (en) * | 1983-03-30 | 1984-10-15 | Matsushita Electric Ind Co Ltd | Manufacturing method for paste type lead positive electrode plate |
| CN101887971A (en) * | 2010-05-14 | 2010-11-17 | 张天任 | Lead paste formula of energy storing accumulator and preparation method thereof |
| CN104167546A (en) * | 2014-05-21 | 2014-11-26 | 河南超威电源有限公司 | Lead paste for battery starting/stopping, and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173956A (en) * | 1983-03-23 | 1984-10-02 | Matsushita Electric Ind Co Ltd | Manufacture of pasted lead plate |
| JPS59180971A (en) * | 1983-03-30 | 1984-10-15 | Matsushita Electric Ind Co Ltd | Manufacturing method for paste type lead positive electrode plate |
| CN101887971A (en) * | 2010-05-14 | 2010-11-17 | 张天任 | Lead paste formula of energy storing accumulator and preparation method thereof |
| CN104167546A (en) * | 2014-05-21 | 2014-11-26 | 河南超威电源有限公司 | Lead paste for battery starting/stopping, and preparation method thereof |
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