CN111816845A - Lead-carbon battery pole plate based on porous activated carbon material and preparation method thereof - Google Patents
Lead-carbon battery pole plate based on porous activated carbon material and preparation method thereof 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
- H01M4/14—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
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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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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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a lead-carbon battery plate based on a porous activated carbon material, which comprises a grid and an active material coated on the grid, wherein the active material consists of the following components in percentage by weight: water: 5% -15%; sulfuric acid: 1% -20%; porous activated carbon: 1% -10%; additive: 0.1 to 5 percent; lead: and the balance, wherein the porous activated carbon material is prepared by taking seaweed leaves as a raw material, performing dust removal and drying, then performing carbonization treatment, then performing carbonate treatment, drying by distillation, washing, filtering and drying, and finally mixing the carbonized seaweed leaves with an activating agent and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere. The lead-carbon battery pole plate based on the porous activated carbon material in the embodiment of the invention adopts the seaweed leaves as the raw material to prepare the porous activated carbon, the surface area is large, the pores are developed, the distribution is uniform, and the lead-carbon battery pole plate is used as an electrode material and has high specific capacitance and excellent cycling stability.
Description
Technical Field
The invention belongs to the technical field of lead-acid storage batteries, and particularly relates to a lead-carbon battery pole plate based on a porous activated carbon material and a preparation method thereof.
Background
At present, the electrodes of lead-acid batteries are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. Since 1859 the lead-acid battery invented by frant of french americans, the lead-acid battery has undergone more than 150 years of development process, the lead-acid battery has low cost, long service life and good safety performance, and the recovery utilization rate of the waste battery is as high as more than 95%, so the lead-acid battery is always the most widely used product in the battery field. However, the traditional lead-acid battery has the disadvantages of small specific power, low specific energy, short cycle life and service life, and the like.
With the rapid development of electric automobiles and electric bicycles. The novel storage battery based on the lead-carbon technology, namely the lead-carbon battery, is a novel super battery, integrates a lead-acid battery and a super capacitor, not only exerts the instant high-capacity charging advantage of the super capacitor, but also exerts the specific energy advantage of the lead-acid battery, has very good charging and discharging performance, prevents the negative sulfation phenomenon due to the addition of carbon, improves a factor of battery failure in the past, and prolongs the service life of the battery.
The current mainstream lead-carbon battery research and development scheme mainly uses active carbon, conductive graphite or acetylene black carbon material and lead to be mixed as an active substance of a negative electrode, introduces the characteristic of a super capacitor in the lead-acid battery to enhance the specific power of the lead-acid battery, and utilizes the carbon material to construct a conductive network in an electrode to relieve the sulfation problem of the negative electrode. However, the addition of the carbon material brings the following problems to the negative electrode: firstly, the difference of tap densities of the lead powder and the carbon material is large, so that the lead powder and the carbon material are difficult to uniformly mix, the stability of the negative electrode paste is influenced, the strength of a polar plate is reduced, and the circulation stability of the battery is reduced; secondly, the surface hydrogen evolution potential of the carbon material is lower than that of lead, the addition of the carbon material can increase the hydrogen evolution of the negative electrode of the battery, and excessive hydrogen evolution can cause water loss failure of the battery and influence the service life of the battery.
The activated carbon has a microporous structure with a large specific surface area, a high electric double layer capacity, but low conductivity, and is not easy to modify, so that micropores of the activated carbon are easily blocked by functional modification.
Graphite has the highest conductivity, but has a very small specific surface area, and cannot increase the electric double layer capacitance characteristics.
The acetylene black carbon has good conductivity, can increase the porosity of the polar plate, but has the defects of low specific surface area, difficult modification and the like.
Therefore, the traditional carbon materials can not effectively solve the problem of sulfation of the traditional lead-acid battery due to the characteristics of structure and property, and can not fully exert the advantages of the lead-carbon battery super battery.
Because of being limited by conditions, the built-in grid of the lead-carbon storage battery sold in the market still continues to be used for manufacturing the components of the grid of the lead-acid battery, wherein the negative grid is an important component of the lead-acid battery, and the main function of the negative grid has two functions:
1. current collection framework: the negative grid is a current collecting framework of the electrode, conducts and collects current, enables the current to be uniformly distributed and improves the utilization rate of the negative active material;
2. support carrier for negative electrode active material: the negative plate grid plays a role in supporting the negative active material through the frame and the ribs.
At present, the performance of a lead-acid battery can be greatly improved by introducing an active carbon component into a lead-acid battery pole plate to form the characteristic of a super capacitor, but the performance of the existing active carbon is not greatly improved when the active carbon is directly added into the pole plate, the active carbon needs to be modified, the modification of the active carbon is usually accompanied with the mixing and stirring of active carbon powder and a liquid modification raw material, and because the light-weight ultrafine powder with a large specific surface area of the active carbon is easy to float on the surface of the raw material liquid and easy to agglomerate in the mixing process, dust can be formed and fly, and the influence on the environment is brought.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a lead-carbon battery plate based on a porous activated carbon material and a method for preparing the same, wherein the lead-carbon battery plate has the advantages of improving the specific energy of the battery, reducing the impedance of lead paste, and avoiding the falling of activated carbon during the charging and discharging processes.
To this end, according to one aspect of the present invention, the present invention provides a lead-carbon battery plate based on a porous activated carbon material, and according to an embodiment of the present invention, the following technical solution is adopted:
a lead-carbon battery plate based on a porous activated carbon material comprises a grid and an active material coated on the grid, wherein the active material comprises the following components in percentage by weight:
water: 5% -15%;
sulfuric acid: 1% -20%;
porous activated carbon: 1% -10%;
additive: 0.1 to 5 percent;
lead: and (4) the balance.
The porous activated carbon material is prepared by taking seaweed leaves as a raw material, performing dust removal and drying, performing carbonization treatment, performing carbonate treatment, drying by distillation, washing, filtering, drying, mixing the carbonized seaweed leaves with an activating agent, and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere.
Therefore, the lead-carbon battery plate based on the porous activated carbon material in the embodiment of the invention adopts the porous activated carbon prepared from the seaweed leaves as the raw material, has large surface area, developed pores and uniform distribution, and has high specific capacitance and excellent cycle stability when being used as the electrode material.
In addition, the lead-carbon battery plate based on the porous activated carbon material, which is practical according to the invention, can also have the following additional technical characteristics:
in some embodiments of the invention, when the plate is a positive electrode, the additive is a mixture of red lead, graphite and humic acid; when the polar plate is a negative electrode, the additive is a mixture of chopped carbon fibers, humic acid, tannin extract and barium sulfate.
In some embodiments of the invention, the specific surface area of the porous activated carbon is 4000-4500 square meters per gram, and the pore volume is 1.520-1.852 cm3(ii)/g, particle diameter of 14.5 + -0.2 μm, and conductivity of 0.39-0.41S/cm.
According to a second aspect of the present invention, the present invention also provides a method for preparing an electrode plate by using the above-mentioned lead-carbon battery electrode plate component based on a porous activated carbon material of the previous embodiment, and according to an embodiment of the present invention, the method further comprises:
(1) preparing porous activated carbon: based on seaweed leaves as raw materials, performing dust removal and drying, then performing carbonization treatment, then performing carbonate treatment, drying by distillation, washing, filtering and drying, and finally mixing the carbonized seaweed leaves with an activating agent and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere to prepare the seaweed tea;
(2) preparing lead plaster: grinding lead into lead powder, sequentially adding water and sulfuric acid with the mass concentration of 33.5% into the lead powder, and uniformly stirring; adding the additive and the porous active carbon again, and preparing mud-shaped lead plaster; when the polar plate is a positive electrode, the additive is a mixture of red lead, graphite and humic acid; when the polar plate is a negative electrode, the additive is a mixture of chopped carbon fibers, humic acid, tannin extract and barium sulfate;
(3) coating lead plaster on a grid, and drying at the temperature of 150 ℃;
(4) curing and drying at 75 ℃.
In some embodiments of the present invention, the porous activated carbon in step (1) is prepared as follows:
(1) pretreatment: washing the seaweed leaves, removing dust, drying and crushing to obtain a seaweed leaf powder raw material;
(2) carbonizing treatment: preparing alkali metal carbonate or bicarbonate into a solution with the concentration of 0.5-5 mol/L, heating the seaweed leaf powder raw material to a calcination temperature, carrying out heat preservation calcination, cooling to room temperature to obtain a calcined product, mixing the calcined product and the alkali metal carbonate/bicarbonate according to the mass ratio of 1-5 at room temperature, stirring for 1-15 h, and evaporating water to obtain a seaweed leaf carbonized product;
(3) high-temperature activation: mixing the seaweed leaf carbonized product with an activating agent, carrying out high-temperature activation treatment for 0.5-10 h at the constant temperature of 200-1500 ℃, cooling, washing and filtering by using 0.01-2 mol/L hydrochloric acid and distilled water samples to be neutral, and finally drying in a vacuum drying oven at the temperature of 50-150 ℃ to constant weight to obtain the porous activated carbon.
In some embodiments of the invention, the pre-treatment comprises the steps of:
(1) treating seaweed leaves with 0.02-5 mol/L acid, stirring for 1-10 h at the temperature of 20-60 ℃, washing with deionized water, removing dust, performing suction filtration to neutrality, and drying the treated sample in a vacuum drying oven at the temperature of 60-150 ℃ to constant weight;
(2) and drying the dried sample at 80-150 ℃ for 5-10 h again, and crushing the sample by using a drinking powder grinding machine to obtain the seaweed leaf powder raw material.
In some embodiments of the present invention, the activating agent in the porous activated carbon preparation process in the step (1) is one or more of potassium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide and phosphoric acid.
The lead-carbon battery plate prepared by the method based on the porous activated carbon material.
Has the advantages that: compared with the prior art, the porous activated carbon raw material of the invention belongs to green renewable resources, has rich sources and low cost, and the preparation process is environment-friendly;
the electrode plate constructed by the invention has the advantages of strong cycle stability, good charge and discharge performance and long service life.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The following examples are illustrative and are intended to be illustrative of the invention and are not to be construed as limiting the invention.
A lead-carbon battery plate based on a porous activated carbon material comprises a grid and an active material coated on the grid, wherein the active material comprises the following components in percentage by weight:
water: 5% -15%;
sulfuric acid: 1% -20%;
porous activated carbon: 1% -10%;
additive: 0.1 to 5 percent;
lead: and (4) the balance.
The porous activated carbon material is prepared by taking seaweed leaves as a raw material, performing dust removal and drying, performing carbonization treatment, performing carbonate treatment, drying by distillation, washing, filtering, drying, mixing the carbonized seaweed leaves with an activating agent, and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere.
When the polar plate is a positive electrode, the additive is a mixture of red lead, graphite and humic acid; when the polar plate is a negative electrode, the additive is a mixture of chopped carbon fibers, humic acid, tannin extract and barium sulfate.
The specific surface area of the porous activated carbon is 4000-4500 square meters per gram, and the pore volume is 1.520-1.852 cm3(ii)/g, particle diameter of 14.5 + -0.2 μm, and conductivity of 0.39-0.41S/cm.
Specific distribution of the lead-carbon battery plate components of examples 1 to 3 is shown in table 1:
table 1 example component ratio table
| Components | Example 1 (%) | Example 2 (%) | Example 3 (%) |
| Water (W) | 5 | 5 | 5 |
| Sulfuric acid | 10 | 10 | 10 |
| Porous activated carbon | 5 | 1 | 10 |
| Additive agent | 2 | 0.13 | 3.6 |
| Lead (II) | 78 | 83.87 | 71.4 |
According to the proportions listed in the three embodiments, the lead-carbon battery pole plate based on the porous activated carbon material is respectively prepared, the weight of each example of the ingredients is 100Kg, and the specific preparation process is as follows:
(1) preparing porous activated carbon: based on seaweed leaves as raw materials, performing dust removal and drying, then performing carbonization treatment, then performing carbonate treatment, drying by distillation, washing, filtering and drying, and finally mixing the carbonized seaweed leaves with an activating agent and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere to prepare the seaweed tea;
(2) preparing lead plaster: grinding lead into lead powder, sequentially adding water and sulfuric acid with the mass concentration of 33.5% into the lead powder, and uniformly stirring; adding the additive and the porous active carbon again, and preparing mud-shaped lead plaster; when the polar plate is a positive electrode, the additive is a mixture of red lead, graphite and humic acid; when the polar plate is a negative electrode, the additive is a mixture of chopped carbon fibers, humic acid, tannin extract and barium sulfate;
(3) coating lead plaster on a grid, and drying at the temperature of 150 ℃;
(4) curing and drying at 75 ℃.
Wherein, the preparation steps of the porous activated carbon in the step (1) are as follows:
(1) pretreatment: washing the seaweed leaves, removing dust, drying and crushing to obtain a seaweed leaf powder raw material;
(2) carbonizing treatment: preparing alkali metal carbonate or bicarbonate into a solution with the concentration of 0.5-5 mol/L, heating the seaweed leaf powder raw material to a calcination temperature, carrying out heat preservation calcination, cooling to room temperature to obtain a calcined product, mixing the calcined product and the alkali metal carbonate/bicarbonate according to the mass ratio of 1-5 at room temperature, stirring for 1-15 h, and evaporating water to obtain a seaweed leaf carbonized product;
(3) high-temperature activation: mixing the seaweed leaf carbonized product with an activating agent, carrying out high-temperature activation treatment for 0.5-10 h at the constant temperature of 200-1500 ℃, cooling, washing and filtering by using 0.01-2 mol/L hydrochloric acid and distilled water samples to be neutral, and finally drying in a vacuum drying oven at the temperature of 50-150 ℃ to constant weight to obtain the porous activated carbon.
The pretreatment comprises the following steps:
(1) treating seaweed leaves with 0.02-5 mol/L acid, stirring for 1-10 h at the temperature of 20-60 ℃, washing with deionized water, removing dust, performing suction filtration to neutrality, and drying the treated sample in a vacuum drying oven at the temperature of 60-150 ℃ to constant weight;
(2) and drying the dried sample at 80-150 ℃ for 5-10 h again, and crushing the sample by using a drinking powder grinding machine to obtain the seaweed leaf powder raw material.
Wherein, the activating agent in the preparation of the porous activated carbon in the step (1) is one or more of potassium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide and phosphoric acid.
The polar plates of the three examples are respectively charged together with the products in the prior art in the target lead-carbon battery to be used as a charging acceptance test, the test method executes GB22473-2008 'energy storage lead-acid storage battery', and the comparison table of the average charging acceptance of the three examples and the products in the prior art is shown as follows:
| name (R) | I0/A | I1/A | I1/I0 |
| Products of the prior art | 1.71 | 2.31 | 1.35 |
| Examples of the invention | 2.86 | 12.82 | 4.48 |
From the data recorded in the table, the maximum cycle charge acceptance of the embodiment of the invention is greatly improved compared with the prior art product.
Additional test results are given in the following table:
| energy density | Number of cycles | |
| Example 1 | 375Wh/kg | 27 ten thousand times |
| Example 2 | 355Wh/kg | 23.1 ten thousand times |
| Example 3 | 312Wh/kg | 19 ten thousand times |
From the above table, the battery plate based on the porous activated carbon provided by the invention effectively improves the energy density of the battery, and the service life is greatly prolonged.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. The lead-carbon battery plate based on the porous activated carbon material comprises a grid and an active material coated on the grid, and is characterized in that the active material consists of the following components in percentage by weight:
water: 5% -15%;
sulfuric acid: 1% -20%;
porous activated carbon: 1% -10%;
additive: 0.1 to 5 percent;
lead: and (4) the balance.
The porous activated carbon material is prepared by taking seaweed leaves as a raw material, performing dust removal and drying, performing carbonization treatment, performing carbonate treatment, drying by distillation, washing, filtering, drying, mixing the carbonized seaweed leaves with an activating agent, and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere.
2. The porous activated carbon material-based lead-carbon battery plate according to claim 1, wherein when the plate is a positive electrode, the additive is a mixture of red lead, graphite and humic acid; when the polar plate is a negative electrode, the additive is a mixture of chopped carbon fibers, humic acid, tannin extract and barium sulfate.
3. The lead-carbon battery plate based on the porous activated carbon material as claimed in claim 1 or 2, wherein the specific surface area of the porous activated carbon is 4000-4500 square meters per gram, and the pore volume is 1.520-1.852 cm3(ii)/g, particle diameter of 14.5 + -0.2 μm, and conductivity of 0.39-0.41S/cm.
4. The preparation method of the lead-carbon battery pole plate based on the porous activated carbon material is characterized by comprising the following steps:
(1) preparing porous activated carbon: based on seaweed leaves as raw materials, performing dust removal and drying, then performing carbonization treatment, then performing carbonate treatment, drying by distillation, washing, filtering and drying, and finally mixing the carbonized seaweed leaves with an activating agent and performing high-temperature activation treatment in a vacuum constant-temperature atmosphere to prepare the seaweed tea;
(2) preparing lead plaster: grinding lead into lead powder, sequentially adding water and sulfuric acid with the mass concentration of 33.5% into the lead powder, and uniformly stirring; adding the additive and the porous active carbon again, and preparing mud-shaped lead plaster; when the polar plate is a positive electrode, the additive is a mixture of red lead, graphite and humic acid; when the polar plate is a negative electrode, the additive is a mixture of chopped carbon fibers, humic acid, tannin extract and barium sulfate;
(3) coating lead plaster on a grid, and drying at the temperature of 150 ℃;
(4) curing and drying at 75 ℃.
5. The method for preparing the lead-carbon battery plate based on the porous activated carbon material as claimed in claim 4, wherein the porous activated carbon in the step (1) is prepared by the following steps:
(1) pretreatment: washing the seaweed leaves, removing dust, drying and crushing to obtain a seaweed leaf powder raw material;
(2) carbonizing treatment: preparing alkali metal carbonate or bicarbonate into a solution with the concentration of 0.5-5 mol/L, heating the seaweed leaf powder raw material to a calcination temperature, carrying out heat preservation calcination, cooling to room temperature to obtain a calcined product, mixing the calcined product and the alkali metal carbonate/bicarbonate according to the mass ratio of 1-5 at room temperature, stirring for 1-15 h, and evaporating water to obtain a seaweed leaf carbonized product;
(3) high-temperature activation: mixing the seaweed leaf carbonized product with an activating agent, carrying out high-temperature activation treatment for 0.5-10 h at the constant temperature of 200-1500 ℃, cooling, washing and filtering by using 0.01-2 mol/L hydrochloric acid and distilled water samples to be neutral, and finally drying in a vacuum drying oven at the temperature of 50-150 ℃ to constant weight to obtain the porous activated carbon.
6. The method for preparing the lead-carbon battery plate based on the porous activated carbon material as claimed in claim 5, is characterized in that: the pretreatment comprises the following steps:
(1) treating seaweed leaves with 0.02-5 mol/L acid, stirring for 1-10 h at the temperature of 20-60 ℃, washing with deionized water, removing dust, performing suction filtration to neutrality, and drying the treated sample in a vacuum drying oven at the temperature of 60-150 ℃ to constant weight;
(2) and drying the dried sample at 80-150 ℃ for 5-10 h again, and crushing the sample by using a drinking powder grinding machine to obtain the seaweed leaf powder raw material.
7. The method for preparing the lead-carbon battery plate based on the porous activated carbon material as claimed in claim 4, is characterized in that: the activating agent in the step (1) is one or more of potassium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide and phosphoric acid.
8. A lead-carbon battery plate based on a porous activated carbon material prepared according to the method of any one of claims 4 to 7.
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| CN114824274A (en) * | 2022-04-13 | 2022-07-29 | 江西金糠新材料科技有限公司 | Rice hull-based carbon material and preparation method thereof, lead-carbon battery negative lead paste, polar plate and battery |
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| CN101541676A (en) * | 2007-04-04 | 2009-09-23 | 索尼株式会社 | Porous carbon material, process for producing the same, adsorbent, mask, adsorbent sheet and supporting member |
| CN102099948A (en) * | 2008-07-18 | 2011-06-15 | 米德韦斯瓦科公司 | Enhanced negative plates for lead acid batteries |
| CN103086352A (en) * | 2013-01-09 | 2013-05-08 | 上海交通大学 | Preparation method for graphitized porous carbon for supercapacitor |
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| CN105958076A (en) * | 2016-07-06 | 2016-09-21 | 威胜集团有限公司 | Modified carbon material and preparation method thereof, cathode lead paste, polar plate and lead carbon battery |
| CN109081342A (en) * | 2018-08-03 | 2018-12-25 | 成都城电电力工程设计有限公司 | A kind of biomass porous active carbon of nipa palm leaf and its preparation method and application |
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| CN114824274A (en) * | 2022-04-13 | 2022-07-29 | 江西金糠新材料科技有限公司 | Rice hull-based carbon material and preparation method thereof, lead-carbon battery negative lead paste, polar plate and battery |
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