CN111600018A - Negative lead paste suitable for high-temperature and low-temperature environments, lead-acid storage battery and preparation method - Google Patents
Negative lead paste suitable for high-temperature and low-temperature environments, lead-acid storage battery and preparation method Download PDFInfo
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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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
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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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- 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
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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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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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
Abstract
The negative plate lead paste comprises the following components in parts by weight: 100 parts of lead powder, 8-11 parts of sulfuric acid, 7-10 parts of deionized water, 0.04-0.06 part of high-strength short fibers, 0.1-0.2 part of lignin, 0.1-0.25 part of granular carbon black, 0.65-0.95 part of nano barium sulfate, 0.4-0.6 part of humic acid, 0.25-0.45 part of surfactant, 2-4 parts of carbon nanotube solution and 0.10-0.25 part of hydrogen evolution inhibitor. The lead-acid storage battery produced by adopting the negative plate lead paste formula comprehensively improves the high-temperature and low-temperature performances of the lead-acid storage battery, and has the advantages of long high-temperature service life and good low-temperature large-current discharge performance.
Description
Technical Field
The invention belongs to the technical field of storage batteries, and particularly relates to a negative lead plaster suitable for being used in high-temperature and low-temperature environments, a lead-acid storage battery and a preparation method of the negative lead plaster.
Background
With the rapid development of lead-acid storage batteries and the automobile industry, users have more and more stringent requirements on the performance of the storage batteries and have more and more high requirements on the environmental adaptability of the storage batteries. The traditional lead-acid storage battery for the automobile has the application range of-30-60 ℃, and the service life of the battery is quickly reduced under the condition of overhigh or overlow ambient temperature. In the prior art, although some researches have been made on a storage battery used in a low-temperature environment, products of batteries which simultaneously satisfy the use in high-temperature and ultra-low-temperature environments have not been produced. The long-distance commercial vehicle has long driving mileage, wide driving area and high requirement on the temperature application range of the storage battery, and needs to meet the use in the environment of-40 ℃ to 75 ℃. In order to meet the requirements of customers on high-temperature and low-temperature use, the high-temperature service life and the low-temperature starting performance of the storage battery need to be improved simultaneously, and the method is also the content of key attention and technical attack work of each storage battery enterprise.
Disclosure of Invention
The invention aims to provide a lead-acid storage battery negative electrode lead paste with low water loss and suitable for high and low temperature environments.
The invention aims to provide a lead-acid storage battery which has long high-temperature service life and good low-temperature large-current discharge performance and can simultaneously meet the requirements of prolonging the high-temperature service life and improving the low-temperature starting performance of the storage battery.
The invention also aims to provide a preparation method of the lead paste for the negative electrode of the lead-acid storage battery.
The invention discovers the following through the analysis of the service performance characteristics of the lead-acid storage battery in the prior art in high-temperature and low-temperature environments: the water loss speed of the existing lead-acid storage battery is high in the use process in a high-temperature environment, and the swelling agent is easily dissolved out at high temperature to cause the failure of a negative electrode; the use of negative electrode sulfation in ultra-low temperature environments leads to reduced starting performance and the like, which affect the high temperature life and low temperature starting performance of the battery.
The technical scheme of the invention is as follows: the lead-acid storage battery negative electrode lead paste suitable for the high-temperature and low-temperature environment comprises the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
8-11 parts of dilute sulfuric acid,
7-10 parts of deionized water,
0.04-0.06 part of high-strength short fiber,
0.10 to 0.20 portion of lignin,
0.40 to 0.60 portion of humic acid,
0.65 to 0.95 portion of nano barium sulfate,
0.10 to 0.15 portion of granular carbon black,
0.25 to 0.45 part of surfactant,
2-4 parts of a carbon nano tube solution,
0.1-0.25 parts of hydrogen evolution inhibitor.
The optimal weight parts of the components of the invention are as follows:
100 parts of lead powder, namely 100 parts of lead powder,
9-10 parts of dilute sulfuric acid,
8-9 parts of deionized water,
0.045-0.055 part of high-strength short fiber,
0.13 to 0.17 portion of lignin,
0.45 to 0.55 portion of humic acid,
0.7 to 0.8 portion of nano barium sulfate,
0.12 to 0.14 portion of granular carbon black,
0.30 to 0.35 part of surfactant,
3.0 to 3.5 portions of carbon nano tube solution,
0.16-0.20 parts of hydrogen evolution inhibitor.
The mass fraction of the dilute sulfuric acid is 40-50%.
The surfactant is an acorn tannin extract, which is a specific natural tannin extract substance.
The high-strength short fiber is nano-polyester, the length of the high-strength short fiber is 2-5 mm, and the diameter of the high-strength short fiber is 50-130 nm.
The particle size of the granular carbon black is 50-100 nm.
The particle size of the nano barium sulfate is 300-500 nm.
The hydrogen evolution inhibitor is ZnSO4 & 7 (H)2O)。
The concentration mass fraction of the carbon nano tube solution is 0.1%.
According to the invention, lignin is adopted to replace conventional sodium lignosulphonate, so that the use stability of lignin in a high-temperature environment is improved, the solubility of lignin is reduced, and the stability of a negative electrode in the high-temperature environment and the cycle life are improved. Adding ZnSO4 & 7 (H) as hydrogen evolution inhibitor2O) improves the hydrogen evolution potential of the negative electrode, reduces the loss rate of high-temperature water of the battery, and thus improves the service life of the battery in a high-temperature environment. In addition, the particle carbon black is adopted to replace the conventional acetylene black, so that the high-temperature dissolution of a carbon material in the formation and use processes of the battery is reduced, and the stability of the carbon content of the polar plate is improved, so that the high-temperature stability of the negative plate is improved. Meanwhile, a carbon nano tube solution is added to form a good conductive network, so that the conversion of lead sulfate is promoted, and the low-temperature large-current discharge performance is improved. By adding the nano barium sulfate material, the dispersibility is improved, the deposition of sulfate is relieved, the conductivity is improved, and the low-temperature large-current discharge characteristic is improved. By adding the surfactant, namely the oak cup tannin extract, the interface structure of the negative grid and the active substance is improved, so that a good electronic exchange interface oxide film is formed, sulfate deposition is delayed, capacity loss is reduced, and the electron transfer efficiency is improved. Meanwhile, the additive has the functions of agglomeration and adsorption, and can improve the interface structure between active substances and improve the binding force between the active substances. On the basis of the existing lead plaster formula, the interface structure between the grid and the active substance is improved, so that the large-size battery has high-current discharge performance in an ultralow-temperature environment.
The preparation method of the negative lead plaster comprises the following steps: mixing lignin, nano barium sulfate, humic acid, granular carbon black, a surfactant, a hydrogen evolution inhibitor and high-strength short fibers in the negative lead plaster formula in a dry way, and stirring for 2 minutes to ensure that the materials are uniformly stirred; adding lead powder into the mixture, and mixing and stirring for 4 minutes; adding the rest deionized water and the carbon nano tube solution within 3 minutes and uniformly stirring; adding the diluted sulfuric acid with the formula amount within 15 minutes, stirring and mixing uniformly, and controlling the temperature to be below 50 ℃ to obtain the negative lead paste.
The lead-acid storage battery prepared from the negative lead plaster applicable to high-temperature and low-temperature environments comprises the following components in parts by weight: selecting conventional formulaThe prepared positive plate is used as the positive plate of the lead-acid storage battery, the negative plate is prepared by using the negative lead paste of the lead-acid storage battery suitable for high-temperature and low-temperature environments, and the negative plate is used as the negative plate of the lead-acid storage battery and has the density of 1.28cm3And the sulfuric acid per gram is used as electrolyte, the sulfuric acid is assembled into a battery jar in a positive electrode-separator-negative electrode mode, and then the electrolyte is injected into the battery jar body to assemble the lead-acid storage battery.
The invention has the beneficial effects that: the high-temperature and low-temperature performances of the lead-acid storage battery are comprehensively improved through the technology, and the lead-acid storage battery prepared by adopting the negative plate formula has good high-temperature service life and low-temperature large-current discharge performance.
Detailed Description
Example 1
A formula of a lead-acid storage battery negative lead plaster suitable for being used in high-temperature and low-temperature environments simultaneously comprises the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
9.5 parts of dilute sulfuric acid,
8.5 parts of deionized water, namely,
0.05 part of high-strength short fiber,
0.15 part of lignin,
0.5 part of humic acid,
0.75 part of nano barium sulfate,
0.13 part of granular carbon black,
0.33 part of a surfactant, namely,
3.0 parts of carbon nano tube solution,
0.18 part of hydrogen evolution inhibitor.
Wherein the mass fraction of the dilute sulfuric acid is 48 percent. The high-strength short fiber is nano-polyester, the length of the high-strength short fiber is 3.5mm, and the diameter of the high-strength short fiber is 100 nm. The average size of the particle carbon black particles is 80 nm.
The average size of the nano barium sulfate particles is 400 nm. The concentration mass percent of the carbon nano tube solution is 0.1 percent.
Example 2
A formula of a lead-acid storage battery negative lead plaster suitable for being used in high-temperature and low-temperature environments simultaneously comprises the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
9.5 parts of dilute sulfuric acid,
8.5 parts of deionized water, namely,
0.05 part of high-strength short fiber,
0.15 part of lignin,
0.5 part of humic acid,
0.75 part of nano barium sulfate,
0.12 part of granular carbon black,
0.35 part of a surfactant, namely,
3.0 parts of carbon nano tube solution,
0.12 part of hydrogen evolution inhibitor.
Wherein the high-strength short fiber with the mass fraction of the dilute sulfuric acid of 48 percent is nano-grade terylene with the length of 3mm and the diameter of 110 nm. The average size of the particle carbon black particles is 90 nm.
The average size of the nano barium sulfate particles is 400 nm. The concentration mass percent of the carbon nano tube solution is 0.1 percent.
Example 3
A formula of a lead-acid storage battery negative lead plaster suitable for being used in high-temperature and low-temperature environments simultaneously comprises the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
9.5 parts of dilute sulfuric acid,
8.5 parts of deionized water, namely,
0.05 part of high-strength short fiber,
0.10 part of lignin,
0.5 part of humic acid,
0.75 part of nano barium sulfate,
0.12 part of granular carbon black,
0.32 part of a surfactant, namely,
2.0 parts of carbon nano tube solution,
0.18 part of hydrogen evolution inhibitor.
Wherein the concentration of the dilute sulfuric acid is 47%. The high-strength short fiber is nano-polyester, the length of the high-strength short fiber is 3.5mm, and the diameter of the high-strength short fiber is 100 nm. The average size of the carbon black particles is 100nm, and the average size of the nano barium sulfate particles is 450 nm. The concentration mass percent of the carbon nano tube solution is 0.1 percent.
Example 4
A formula of a lead-acid storage battery negative lead plaster suitable for being used in high-temperature and low-temperature environments simultaneously comprises the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
10 parts of dilute sulfuric acid, namely 10 parts of dilute sulfuric acid,
9.0 parts of deionized water, namely,
0.06 part of high-strength short fiber,
0.16 part of lignin,
0.55 part of humic acid,
0.85 part of nano barium sulfate,
0.14 part of granular carbon black,
0.40 part of a surfactant, namely,
3.5 parts of a carbon nano tube solution,
0.21 part of hydrogen evolution inhibitor.
Wherein the concentration of the dilute sulfuric acid is 48 percent. The high-strength short fiber is nano-polyester, the length of the high-strength short fiber is 4.0mm, and the diameter of the high-strength short fiber is 110 nm. The average size of the particle carbon black particles is 90 nm.
The average size of the nano barium sulfate particles is 450 nm. The concentration mass percent of the carbon nano tube solution is 0.1 percent.
Example 5
A formula of a lead-acid storage battery negative lead plaster suitable for being used in high-temperature and low-temperature environments simultaneously comprises the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
11 parts of dilute sulfuric acid, namely,
10 parts of deionized water, namely 10 parts of deionized water,
0.05 part of high-strength short fiber,
0.2 part of lignin,
0.60 part of humic acid,
0.95 part of nano barium sulfate,
0.15 part of granular carbon black,
0.45 part of a surfactant, namely,
4.0 parts of carbon nano tube solution,
0.25 part of hydrogen evolution inhibitor.
Wherein, the concentration of the dilute sulphuric acid is 46 percent. The high-strength short fiber is nano-polyester, the length of the high-strength short fiber is 3.5mm, and the diameter of the high-strength short fiber is 120 nm. The average size of the particle carbon black particles is 80 nm. The average size of the nano barium sulfate particles is 400 nm.
The lead-acid battery prepared by adopting the lead paste formula of the embodiment 1-5 comprises the following steps:
preparing a corresponding negative plate according to the formula of the negative lead paste:
mixing lignin, nano barium sulfate, humic acid, granular carbon black, a surfactant, a hydrogen evolution inhibitor and high-strength short fibers in the formula of the negative lead plaster in a dry way, and stirring for 2 minutes to ensure that the materials are uniformly stirred; adding lead powder into the mixture, and mixing and stirring for 4 minutes; adding the rest deionized water and the carbon nano tube solution within 3 minutes and uniformly stirring; adding diluted sulfuric acid with the formula amount within 15 minutes, stirring and mixing uniformly, and controlling the temperature below 50 ℃ to obtain the low-water-loss negative pole lead paste.
Selecting a positive plate prepared by a conventional formula as a positive plate of the lead-acid battery, and selecting a negative plate prepared in the above step as a negative plate of the lead-acid battery, wherein the density is 1.28cm3And the sulfuric acid per gram is used as electrolyte, a 100MF type battery jar is selected and assembled into the battery jar in a positive electrode-separator-negative electrode mode, and then the electrolyte is injected into the battery jar body to assemble the lead-acid battery.
The lead-acid starting batteries prepared in the above examples 1 to 5 and common batteries of the same type were tested for their performance, and the test results are listed in table 1.
The method for testing the water loss of the lead-acid battery comprises the following steps:
within the latest week after the end of charging, the dried batteries were weighed (to the nearest + -1 g) and the internal resistance and the response of the battery tester were measured.
Then, the battery was charged at a constant voltage (14.4. + -. 0.05) V for 21 days while the battery stopper was tightened and left at a temperature of (60. + -. 3 ℃ C.). The weight of the externally dried battery (before weighing, the battery was wiped dry), internal resistance and cell tester response were then measured again. Followed by recharging at a constant voltage (14.4. + -. 0.05) V at a temperature of (60. + -. 3). degree.C.for 21 days. The wiped cells were reweighed and the internal resistance and cell tester response measured. The weight loss and internal resistance must be recorded.
Maximum allowable weight loss value with respect to rated capacity:
after 42 days, the weight loss (60 ℃) is less than or equal to 3 g/Ah.
The lead-acid battery national military standard low-temperature-41 ℃ starting performance test method comprises the following steps:
after the storage battery is completely charged for 24 hours, the storage battery is placed in a low-temperature box or a low-temperature chamber which must be provided with air circulation, the temperature is kept at minus 41 ℃ plus or minus 1 ℃, the time is not less than 24 hours, or when the temperature of any middle cell of the storage battery reaches minus 41 ℃ plus or minus 1 ℃, the storage battery is discharged within 2 minutes after being taken out from the low-temperature box or the low-temperature chamber as follows: discharging for 75 s by using is (A) current, wherein the change of the current value in the discharging time is not more than +/-0.5%, and respectively recording the terminal voltage of the storage battery at 5 s, 30 s and 75 th of discharging.
TABLE 1 Performance test results of the prepared lead-acid batteries
As can be seen from the data in table 1, the water loss of the lead-acid storage battery prepared in example 1 is lower than that of example 2, which indicates that zinc sulfate heptahydrate in the lead paste in the negative plate formula can inhibit hydrogen evolution of the negative plate, so that the water loss rate of the battery is reduced; meanwhile, as can be seen from the data in table 1, the water loss of the lead-acid storage battery prepared in example 1 is higher than that of example 3, which indicates that the carbon nanotube solution in the lead paste in the negative plate formula can form a good conductive network, promote the conversion of lead sulfate, and improve the low-temperature large-current discharge performance. Meanwhile, as seen from the data in table 1, the water loss and the ultra-low temperature starting performance of the common batteries in examples 1 to 5 are obviously improved, which shows that the adoption of the mutual matching of the additives of the cathode formula can effectively reduce the high-temperature water loss rate of the batteries and improve the ultra-low temperature starting performance of the batteries.
The formula of the lead-acid battery negative lead paste suitable for being used in high-temperature and low-temperature environments is described in detail, a specific example is applied to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The negative electrode lead paste suitable for the high-temperature and low-temperature environment is characterized by comprising the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
8-11 parts of sulfuric acid,
7-10 parts of deionized water,
0.04-0.06 part of high-strength short fiber,
0.10 to 0.20 portion of lignin,
0.40 to 0.60 portion of humic acid,
0.65 to 0.95 portion of nano barium sulfate,
0.10 to 0.15 portion of granular carbon black,
0.25 to 0.45 part of surfactant,
2-4 parts of a carbon nano tube solution,
0.1-0.25 parts of hydrogen evolution inhibitor.
2. The negative electrode lead paste suitable for high and low temperature environments as claimed in claim 1, is characterized by comprising the following components in parts by weight:
100 parts of lead powder, namely 100 parts of lead powder,
9-10 parts of sulfuric acid,
8-9 parts of deionized water,
0.045-0.055 part of high-strength short fiber,
0.13 to 0.17 portion of lignin,
0.45 to 0.55 portion of humic acid,
0.7 to 0.8 portion of nano barium sulfate,
0.12 to 0.14 portion of granular carbon black,
0.30 to 0.35 part of surfactant,
3.0 to 3.5 portions of carbon nano tube solution,
0.16-0.20 parts of hydrogen evolution inhibitor.
3. The negative electrode lead paste applicable to high and low temperature environments as claimed in claim 1 or 2, wherein the mass fraction of the sulfuric acid is 40-50%.
4. The negative pole lead paste applicable to the high and low temperature environment according to claim 1 or 2, wherein the surfactant is an acorn extract.
5. The negative pole lead paste applicable to high and low temperature environments as claimed in claim 1 or 2, wherein the high-strength short fiber is nano-polyester, the length is 2-5 mm, and the diameter is 50-130 nm.
6. The negative electrode lead paste suitable for high and low temperature environments as claimed in claim 1 or 2, wherein the particle size of the particulate carbon black is 50-100 nm; the particle size of the nano barium sulfate is 300-500 nm.
7. The negative electrode lead paste suitable for high and low temperature environments as defined in claim 1 or 2, wherein the hydrogen evolution inhibitor is ZnSO 4-7 (H)2O)。
8. The negative electrode lead paste suitable for high and low temperature environments as claimed in claim 1 or 2, wherein the mass fraction of the carbon nanotube solution is 0.1%.
9. The preparation method of the negative electrode lead paste suitable for high and low temperature environments of claim 1 or 2, which is characterized by comprising the following steps: mixing lignin, nano barium sulfate, humic acid, granular carbon black, a surfactant, a hydrogen evolution inhibitor and high-strength short fibers in the negative lead plaster formula in a dry way, and stirring for 2 minutes to ensure that the materials are uniformly stirred; adding lead powder into the mixture, and mixing and stirring for 4 minutes; adding the rest deionized water and the carbon nano tube solution within 3 minutes and uniformly stirring; adding the sulfuric acid with the formula amount within 15 minutes, stirring and mixing uniformly, and controlling the temperature to be below 50 ℃ to obtain the negative lead paste.
10. A lead-acid storage battery prepared from the negative electrode lead paste suitable for high and low temperature environments of claim 1 or 2, wherein: selecting a positive plate prepared by a conventional formula as a positive plate of a lead-acid storage battery, preparing a negative plate by using the negative lead paste of the lead-acid storage battery suitable for high-temperature and low-temperature environments in the claim 1 or 2, and using the negative plate as a negative plate of the lead-acid storage battery, wherein the density of the negative plate is 1.28cm3Sulfuric acid/g is electricityAnd (3) assembling the electrolyte into a battery jar in a positive plate-separator-negative plate mode, and then injecting the electrolyte into the battery jar body to assemble the lead-acid storage battery.
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| CN112768676A (en) * | 2021-03-11 | 2021-05-07 | 国网河南省电力公司方城县供电公司 | Lead-acid storage battery negative electrode lead paste and preparation method thereof |
| CN112968168A (en) * | 2021-02-02 | 2021-06-15 | 天能电池集团股份有限公司 | Negative electrode lead paste and negative electrode plate of valve-controlled lead storage battery for high temperature |
| CN117038994A (en) * | 2023-09-13 | 2023-11-10 | 广州埃登达化工有限公司 | Negative electrode expanding agent for storage battery |
| CN117080383A (en) * | 2023-08-04 | 2023-11-17 | 湖南科舰能源发展有限公司 | Negative electrode material and lead-carbon battery |
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