CN111106315A - Lead-acid storage battery with high charge acceptance by adopting carbon material - Google Patents
Lead-acid storage battery with high charge acceptance by adopting carbon material Download PDFInfo
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- CN111106315A CN111106315A CN201911232323.2A CN201911232323A CN111106315A CN 111106315 A CN111106315 A CN 111106315A CN 201911232323 A CN201911232323 A CN 201911232323A CN 111106315 A CN111106315 A CN 111106315A
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/20—Processes of manufacture of pasted electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/73—Grids for lead-acid accumulators, e.g. frame plates
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- Chemical Kinetics & Catalysis (AREA)
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- Engineering & Computer Science (AREA)
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The lead-acid storage battery with high charge acceptance by adopting the carbon material comprises an anode and a cathode, wherein the cathode comprises lead powder, barium sulfate, the carbon material, graphite, lignin and fiber, and the percentage of each component is that the lead powder: barium sulfate: carbon material: graphite: lignin: fiber 1000: 8: 10: 10: 3: 0.9; the positive electrode comprises lead powder, concentrated sulfur, fiber and potassium sulfate, and the percentage of each component is that the lead powder: sulfuric acid: fiber 1000: 94: 0.9. the invention realizes that the service life and the low-temperature starting capability of the battery are not influenced on the basis of improving the charge acceptance capability of the battery from the aspects of the battery negative plate formula, the grid design and the paste mixing process; can effectively adapt to the current market, and has wide application range and high efficiency.
Description
Technical Field
The invention belongs to the technical field of processing of lead-acid storage batteries, and particularly relates to a high-charge acceptance lead-acid storage battery adopting a carbon material.
Background
A lead-acid storage battery is a storage battery with electrodes mainly made of lead and lead oxide and electrolyte of sulfuric acid solution; after the lead-acid battery is charged, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; after discharge, the main components of the positive and negative electrodes are lead sulfate.
With the increasingly strict requirements of the country on the automobile exhaust emission, the start-stop system with the micro-mixing function is more and more popularized to be used on the automobile; the system not only has high service life required by the battery, but also needs higher charge acceptance, which is related to the current vehicle use condition in China; china private cars are mostly used for commuting and leaving work, road conditions mainly include red light short distance, and therefore the batteries are easy to lose electricity. From the current market feedback results, the failure of EFB (enhanced maintenance free lead acid battery) batteries caused by power shortage accounts for more than 65% of the total failure, so that a lead acid battery with high charge acceptance is urgently needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a lead-acid storage battery with high charge acceptance by adopting a carbon material, and the specific technical scheme is as follows:
the lead-acid storage battery with high charge acceptance by adopting the carbon material comprises an anode and a cathode, wherein the cathode comprises lead powder, barium sulfate, the carbon material, graphite, lignin and fiber, and the percentage of each component is that the lead powder: barium sulfate: carbon material: graphite: lignin: fiber 1000: 8: 10: 10: 3: 0.9;
the positive electrode component comprises lead powder, sulfuric acid and fibers, and the percentage of each component is that the lead powder: sulfuric acid: fiber 1000: 94: 0.9.
further, the carbon material is a chain structure, and the specific area is 1300-2/g。
Further, the grid made of the positive electrode component adopts a radioactive structure.
Further, the method for assembling the negative electrode component paste comprises the following steps: starting a paste combining host machine, adding lead powder, barium sulfate, a carbon material, graphite, lignin and fibers, uniformly mixing for 450 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃.
Further, the method for preparing the positive electrode component paste comprises the following steps: starting a paste combining host machine, adding lead powder and fibers, uniformly mixing for 120 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃.
Further, the temperature is controlled to be above 65 ℃ in the preparation process of the positive electrode paste.
The invention has the beneficial effects that:
the invention realizes that the service life and the low-temperature starting capability of the battery are not influenced on the basis of improving the charge acceptance capability of the battery on the basis of the formula of a negative plate of the battery, the design of a grid and a paste mixing process, can effectively adapt to the current market, and has wide application range and high efficiency.
Drawings
FIG. 1 shows a schematic view of the molecular structure of a carbon material according to an embodiment of the present invention;
fig. 2 shows a schematic structural view of a positive grid according to an embodiment of the invention;
FIG. 3 shows a front plate SEM scan of an embodiment of the invention;
FIG. 4 shows static charge acceptance test plots for experiment one and experiment two of the present embodiments;
FIG. 5 shows graphs of dynamic charge acceptance tests for a first condition of experiment one and experiment two according to embodiments of the present invention;
fig. 6 shows a dynamic charge acceptance test chart in the second condition of the first experiment and the second experiment of the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The lead-acid storage battery with high charge acceptance by adopting the carbon material comprises an anode and a cathode, wherein the cathode comprises lead powder, barium sulfate, the carbon material, graphite, lignin and fiber, and the percentage of each component is that the lead powder: barium sulfate: carbon material: graphite: lignin: fiber 1000: 8: 10: 10: 3: 0.9; the positive electrode component comprises lead powder, sulfuric acid and fibers, and the percentage of each component is that the lead powder: sulfuric acid: fiber 1000: 94: 0.9; the negative plate formula of the battery provided by the invention realizes that the service life and the low-temperature starting capability of the battery are not influenced on the basis of improving the charge acceptance capability of the battery.
As an improvement of the technical scheme, the carbon material is of a chain structure, the specific area is 1300-1550m2/g, and the high specific surface area effectively increases the charge acceptance of the battery.
As an improvement of the technical scheme, the grid made of the positive electrode component adopts a radioactive structure, so that the capability of improving low-temperature starting is realized.
As an improvement of the above technical solution, the method for combining the negative electrode component paste includes: starting a paste combining host machine, adding lead powder, barium sulfate, a carbon material, graphite, lignin and fibers, uniformly mixing for 450 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃.
As an improvement of the above technical solution, the method for preparing the positive electrode component paste includes: and starting the paste mixing host machine, adding lead powder and fibers, uniformly mixing for 120 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃, so that the service life of the storage battery is remarkably prolonged.
As an improvement of the technical scheme, the temperature is controlled to be above 65 ℃ in the preparation process of the positive electrode paste, effective 4BS is generated in the paste mixing process, and the service life of the battery is improved.
FIG. 1 shows a schematic molecular structure diagram of a carbon material according to an embodiment of the present invention, and exemplarily, as shown in FIG. 1, the carbon material adopts a non-amorphous structure and is a chain-like structure with a specific area of 1300-2The high specific surface area of the present invention effectively increases the charge acceptance of the battery.
Fig. 2 is a schematic diagram showing the structure of a positive grid according to an embodiment of the present invention, and exemplarily, the positive grid adopts a radioactive structure as shown in fig. 2; the grid design adopting the structure can realize that the low-temperature starting capability of the battery is not influenced on the basis of improving the charging acceptance capability of the battery.
Case one: carrying out positive pole paste combination, wherein the percentage of each component is lead powder: sulfuric acid: fiber 1000: 94: 0.9.
the paste mixing process is to start a paste mixing host machine, add 1000kg of lead powder and 0.9kg of fiber, mix uniformly for 120 seconds, add deionized water, add 94kg of sulfuric acid after 240 seconds, and stir until the temperature is lower than 45 ℃.
The temperature is controlled to be above 65 ℃ in the preparation process of the positive electrode paste; stirring at low temperature to obtain paste, and scanning with a Scanning Electron Microscope (SEM); fig. 3 shows a schematic representation of a front plate after SEM scanning of an embodiment of the invention, exemplary, as shown in fig. 3, and paste temperature controlled above 65 c, resulting in effective 4BS generation during paste mixing, improving battery life.
Case two:
the following experiments were carried out in order to carry out,
experiment one (EFB + C experiment):
and (3) carrying out negative pole paste mixing, wherein the percentage of each component is that lead powder: barium sulfate: carbon material: graphite: lignin: fiber 1000: 8: 10: 10: 3: 0.9
The method for preparing the negative electrode component paste comprises the following steps: starting a paste combining host machine, adding 1000kg of lead powder, 10kg of carbon material, 8kg of barium sulfate, 10kg of graphite, 3kg of lignin and 0.9kg of fiber, uniformly mixing for 450 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃ to obtain the paste.
Carrying out positive pole paste combination, wherein the percentage of each component is lead powder: sulfuric acid: fiber 1000: 94: 0.9.
the paste mixing process is to start a paste mixing host machine, add 1000kg of lead powder and 0.9kg of fiber, mix uniformly for 120 seconds, add deionized water, add 94kg of sulfuric acid after 240 seconds, and stir until the temperature is lower than 45 ℃.
The temperature is controlled to be above 65 ℃ in the preparation process of the positive electrode paste; stirring at low temperature to obtain paste. The obtained lead paste is subjected to plate coating by adopting a grid of a 70Ah battery, is solidified at 65 ℃, is subjected to plate separation, and is subjected to performance detection after battery assembly and battery formation.
Experiment two (EFB experiment):
and (3) carrying out negative pole paste mixing, wherein the percentage of each component is that lead powder: barium sulfate: graphite: lignin: fiber 1000: 8: 10: 3: 0.9
The method for preparing the negative electrode component paste comprises the following steps: starting a paste combining host machine, adding 1000kg of lead powder, 10kg of graphite, 8kg of barium sulfate, 3kg of lignin and 0.9kg of fiber, uniformly mixing for 450 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃.
The temperature is controlled to be above 45 ℃ in the preparation process of the negative pole paste; stirring at low temperature to obtain paste
Carrying out positive pole paste combination, wherein the percentage of each component is lead powder: sulfuric acid: fiber 1000: 94: 0.9.
the paste mixing process is to start a paste mixing host machine, add 1000kg of lead powder and 0.9kg of fiber, mix uniformly for 120 seconds, add deionized water, add 94kg of sulfuric acid after 240 seconds, and stir until the temperature is lower than 45 ℃.
The temperature is controlled to be more than 45 ℃ in the preparation process of the positive electrode paste; stirring at low temperature to obtain paste. The obtained lead paste is subjected to plate coating by adopting a grid of a 70Ah battery, is solidified at 65 ℃, is subjected to plate separation, and is subjected to performance detection after battery assembly and battery formation.
Fig. 4 shows static charge acceptance test charts of the first experiment and the second experiment according to the embodiment of the present invention, and for example, as shown in fig. 4, it can be seen that the static charge acceptance of the first experiment is higher than that of the second experiment.
Fig. 5 shows a dynamic charge acceptance test chart of the first condition of the first experiment and the second experiment according to the embodiment of the present invention, and for example, as shown in fig. 5, it can be seen that the dynamic charge acceptance of the first experiment is higher than that of the second experiment.
Fig. 6 shows a dynamic charge acceptance test chart of the second condition of the first experiment and the second experiment according to the embodiment of the present invention, and for example, as shown in fig. 6, it can be seen that the dynamic charge acceptance of the first experiment is higher than the static charge acceptance of the second experiment.
The invention realizes that the service life and the low-temperature starting capability of the battery are not influenced on the basis of improving the charge acceptance capability of the battery from the aspects of the battery negative plate formula, the grid design and the paste mixing process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The lead-acid storage battery with high charge acceptance by adopting the carbon material comprises a positive electrode and a negative electrode, and is characterized in that:
the negative electrode component comprises lead powder, barium sulfate, a carbon material, graphite, lignin and fibers, and the percentage of each component is that the lead powder: barium sulfate: carbon material: graphite: lignin: fiber 1000: 8: 10: 10: 3: 0.9;
the positive electrode component comprises lead powder, sulfuric acid and fibers, and the percentage of each component is that the lead powder: sulfuric acid: fiber 1000: 94: 0.9.
2. the lead-acid storage battery with high charge acceptance using a carbon material according to claim 1, characterized in that: the carbon material is in a chain structure, and the specific area of the carbon material is 1300-1550m2/g。
3. The lead-acid storage battery with high charge acceptance using a carbon material according to claim 1, characterized in that: the grid made of the positive electrode component adopts a radioactive structure.
4. A high charge acceptance lead-acid storage battery using a carbon material according to any one of claims 1 to 3, wherein: the method for preparing the negative electrode component paste comprises the following steps: starting a paste combining host machine, adding lead powder, barium sulfate, a carbon material, graphite, lignin and fibers, uniformly mixing for 450 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃.
5. A high charge acceptance lead-acid storage battery using a carbon material according to any one of claims 1 to 3, wherein: the method for preparing the positive electrode component paste comprises the following steps: starting a paste combining host machine, adding lead powder and fibers, uniformly mixing for 120 seconds, adding deionized water, adding sulfuric acid after 240 seconds, and stirring until the temperature is lower than 45 ℃.
6. The lead-acid storage battery with high charge acceptance using a carbon material according to claim 5, characterized in that: the temperature is controlled to be above 65 ℃ in the preparation process of the positive electrode paste.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151776A (en) * | 2020-08-21 | 2020-12-29 | 安徽理士电源技术有限公司 | Long-life silicon-based bipolar lead storage battery anode lead paste and preparation method thereof |
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Application publication date: 20200505 |