CN112736248A - Lead plaster formula of long-life valve-regulated lead-acid storage battery and preparation method thereof - Google Patents
Lead plaster formula of long-life valve-regulated lead-acid storage battery 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
- H01M4/36—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
- H01M10/121—Valve regulated lead acid batteries [VRLA]
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
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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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
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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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- 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 invention discloses a lead plaster formula of a long-life valve-controlled lead-acid storage battery and a preparation method thereof, lead powder, dilute sulfuric acid, purified water, graphite, short fibers, stannous sulfate, antimony trioxide, humic acid, lignin, barium sulfate, acetylene black, multi-walled carbon nanotubes and barium stearate are prepared into the lead plaster meeting the technical requirements and the coating requirements in a plaster combining machine according to the formula amount of the polarity of the lead plaster and according to certain quality, wherein the positive lead plaster can inhibit the early capacity attenuation of the storage battery in the using process, improve the over-discharge recovery of the battery and prolong the service life of the battery; the negative electrode lead paste can prevent the negative electrode plate from shrinking during charging circulation, improve the charge acceptance of the storage battery under the low-temperature condition and prolong the service life of the storage battery; the acetylene carbon black in the negative electrode lead paste can improve the conductivity and the charge acceptance of the negative electrode plate, and the multi-wall carbon nano-grade in the negative electrode lead paste can greatly improve the charge acceptance of the negative electrode plate.
Description
Technical Field
The invention relates to the field of lead-acid storage batteries, in particular to a lead plaster formula of a long-life valve-regulated lead-acid storage battery and a preparation method thereof.
Background
The design principle of the valve-controlled lead-acid storage battery is that required electrolyte is injected into a polar plate and a partition plate, free electrolyte is not available, the capacity of absorbing oxygen is improved through the moisture of a negative plate, and the storage battery is sealed in order to prevent the electrolyte from being reduced, so the valve-controlled lead-acid storage battery is also called a lean solution battery.
The grids of valve-regulated lead-acid accumulator are made of Pb-Ca alloy to increase the gas evolution (H) between positive and negative electrodes2And O2) The overpotential achieves the purpose of reducing the gas evolution amount in the charging process. Oxygen begins to occur when the positive plate reaches 70% of the charge, and does not begin to occur when the negative plate reaches 90%. In the production process, the ratio of the thickness of the positive plate to the thickness of the negative plate is generally 6: 4, according to the change of the mass ratio of the positive and negative electrode active materials, when the velvet Pb on the negative electrode reaches 90%, PbO2 on the positive electrode approaches 90%, and after a little charging, the active materials on the positive and negative electrodes respectively reach 95% through oxidation reduction and approach complete charging, thus H can be caused to be H2、 O2Gas evolution is reduced. Superfine glass fiber (or silica gel) is used for absorbing and storing electrolyte and providing a channel for oxygen separated from the anode to diffuse to the cathode.
The lead plaster formula has important influence on the performance and the service life of the lead-acid storage battery, the lead plaster formula is divided into a positive lead plaster formula and a negative lead plaster formula, and the lead plaster formulas of the positive electrode or the negative electrode of different types of storage batteries are different. The main material of the existing valve-regulated lead-acid storage battery for the motorcycle uses Pb-Ca alloy, and the Pb-Ca alloy battery has the defects of reduced charge acceptance, difficult recharging, easy capacity attenuation at the initial stage of the service life and influence on the service life of the battery during charge and discharge cycles.
Therefore, how to solve the defects of the prior art is a subject of the present invention.
Disclosure of Invention
In order to solve the problems, the invention discloses a preparation method of a lead plaster formula of a long-life valve-regulated lead-acid storage battery.
In order to achieve the above purpose, the invention provides the following technical scheme: a lead plaster formula of a long-life valve-regulated lead-acid storage battery comprises a positive lead plaster and a negative lead plaster,
the positive lead plaster comprises the following components in parts by weight:
lead powder 990-1010 parts, dilute sulfuric acid 100-120 parts, short fiber 1.2-1.8 parts, purified water 106-126 parts, graphite 1-3 parts, stannous sulfate 1-1.5 parts, and antimony trioxide 1.2-1.8 parts;
the negative lead plaster comprises the following components in parts by weight:
lead powder 990-1010 parts, dilute sulfuric acid 70-90 parts, purified water 105-120 parts, short fiber 1-1.5 parts, humic acid 2.5-3.5 parts, lignin 1-2 parts, barium sulfate 6-10 parts, acetylene black 1.2-2.2 parts, multi-walled carbon nanotube 1-2 parts, and barium stearate 1-2 parts;
the oxidation degree of the lead powder is 74-80%, the density d of the dilute sulfuric acid is 1.400g/cm3, the conductivity of the purified water is less than or equal to 1 mu s/cm, and the diameter of the multi-wall carbon nano tube is 5-15 nm;
the stannous sulfate and the antimony trioxide are both in powder form;
the short fiber is one or more of polypropylene, polyester and polyethylene.
The lead powder in the formula is a main material of a lead-acid storage battery plate and is a way for realizing a powder porous battery of the lead-acid storage battery; the dilute sulfuric acid and the purified water have the function of chemically reacting with the additive and the lead powder; the short fibers can enhance the mechanical strength of the polar plate and prolong the service life of the storage battery; the graphite mainly has the function of improving the conductivity of the positive electrode, so that the performance of the battery is improved; the stannous sulfate can mainly improve the over-discharge recovery of the storage battery and prolong the service life of the storage battery; the antimony trioxide can mainly solve the phenomenon of early capacity attenuation of the positive plate and prolong the service life of the battery; humic acid is mainly used for preventing the negative plate from shrinking, improving the capacity of the battery and prolonging the service life of the battery; the lignin improves the discharge characteristic of the storage battery under the low-temperature condition; barium sulfate prevents the negative plate from shrinking during the charging cycle, and improves the discharging performance and the charging acceptance of the storage battery; the acetylene black can improve the conductivity and charge acceptance of the negative plate; the multi-walled carbon nanotube is a novel high-strength carbon fiber nano black powder material, has good high conductivity and high heat conductivity, and can greatly improve the charge acceptance of a negative plate; barium stearate is an antioxidant, mainly to prevent oxidation of the negative plate.
Further, the apparent density of the positive electrode lead paste is 4.10-4.20g/cm3The apparent density of the negative pole lead paste is 4.25-4.40g/cm3。
Further, the short fiber is polypropylene.
Further, the positive lead paste comprises the following components in parts by weight: 1000 portions of lead powder, 120 portions of dilute sulfuric acid, 1.5 to 1.8 portions of short fiber, 126 portions of purified water, 2 to 3 portions of graphite, 1.2 to 1.5 portions of stannous sulfate and 1.6 to 1.8 portions of antimony trioxide;
the negative lead plaster comprises the following components in parts by weight: 1000 portions of lead powder, 80 to 90 portions of dilute sulfuric acid, 120 portions of purified water 114, 1.2 to 1.5 portions of short fibers, 2.5 to 3.5 portions of humic acid, 1.5 to 2 portions of lignin, 8 to 10 portions of barium sulfate, 1.7 to 2.2 portions of acetylene black, 1.3 to 2 portions of multi-walled carbon nano-tubes and 1.5 to 2 portions of barium stearate.
Further, the positive lead paste comprises the following components in parts by weight: 1000 parts of lead powder, 110 parts of dilute sulfuric acid, 1.5 parts of short fibers, 116 parts of purified water, 2 parts of graphite, 1.2 parts of stannous sulfate and 1.6 parts of antimony trioxide;
the negative lead plaster comprises the following components in parts by weight: 1000 parts of lead powder, 80 parts of dilute sulfuric acid, 114 parts of purified water, 1.2 parts of short fibers, 2.5 parts of humic acid, 1.5 parts of lignin, 8 parts of barium sulfate, 1.7 parts of acetylene black, 1.3 parts of multi-walled carbon nanotubes and 1.5 parts of barium stearate;
the oxidation degree of the lead powder is 75 percent, and the density d of the dilute sulfuric acid is 1.400g/cm3The diameter of the multi-wall carbon nano tube is 10 nm.
The preparation method of the lead plaster formula of the long-life valve-regulated lead-acid storage battery comprises the following steps:
the preparation method of the positive lead paste comprises the following steps:
the method comprises the following steps: placing lead powder in the positive lead plaster formula into a plaster combining machine for standing for 2-5 minutes, and then adding graphite and short fiber for dry stirring for 5-8 minutes;
step two: adding stannous sulfate and antimony trioxide in the positive lead paste formula into a paste mixing machine, and stirring for 8-10 minutes
Step three: adding the purified water in the positive lead plaster formula into a plaster combining machine within 2 minutes, and continuing stirring for 6-10 minutes after water is added to obtain a material A;
step four: adding dilute sulfuric acid into the material A, controlling the acid adding time within 15 minutes, keeping the paste mixing temperature at 72 ℃ for 8 minutes, and stirring for 10-15 minutes after the acid adding is finished to obtain the anode lead paste;
the preparation method of the negative lead paste comprises the following steps:
the method comprises the following steps: putting lead powder in the negative lead plaster formula into a plaster combining machine for standing for 2-5 minutes, and then adding short fiber, humic acid, lignin, barium sulfate and barium stearate for dry stirring for 5-8 minutes;
step two: adding acetylene black and multi-walled carbon nanotubes in the negative lead paste formula into a paste mixing machine, and performing dry stirring for 10-15 minutes;
step three: adding the purified water in the negative lead plaster formula into a plaster combining machine within 2 minutes, and continuously stirring for 10-15 minutes after water is added to obtain a material B;
step four: and adding dilute sulfuric acid into the material B, controlling the acid adding time within 15 minutes, keeping the maximum paste mixing temperature at 68 ℃ for 5 minutes, and stirring for 10-15 minutes after the acid adding is finished to obtain the negative lead paste.
Compared with the prior art, the invention has the following advantages:
1. the lead plaster is prepared from lead powder, dilute sulfuric acid, purified water, graphite, short fibers, stannous sulfate, antimony trioxide, humic acid, lignin, barium sulfate, acetylene black, multi-walled carbon nanotubes and barium stearate according to the formula amount of the lead plaster polarity and a certain mass in a plaster combining machine; the positive lead plaster can inhibit the early capacity attenuation of the storage battery in the using process, improve the over-discharge recovery of the battery and prolong the service life of the battery; the negative electrode lead paste can prevent the negative electrode plate from shrinking during charging circulation, improve the charge acceptance of the storage battery under the low-temperature condition and prolong the service life of the storage battery; the acetylene carbon black in the negative electrode lead paste can improve the conductivity and the charge acceptance of the negative electrode plate, and the multiwalled carbon nanotube in the negative electrode lead paste is a novel high-strength carbon fiber nano black powder material, has good high conductivity and high heat conductivity, and can greatly improve the charge acceptance of the negative electrode plate;
2. when the lead plaster is prepared, the highest temperature of the positive electrode paste is controlled to be 72 ℃ and kept for 8 minutes, and the highest temperature of the negative electrode paste is controlled to be 68 ℃ and kept for 5 minutes, so that the lead plaster generates tetrabasic lead sulfate as a main component, and tetrabasic lead sulfate crystals are long, thick and acicular and are staggered with each other, have a strong framework structure, can increase the binding force of active substances in a polar plate, and prolong the cycle life of a storage battery.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below 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.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used merely to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The lead plaster formula is suitable for a valve-regulated lead-acid storage battery for a motorcycle, and mainly can improve the charge acceptance of the storage battery, inhibit early capacity attenuation of the storage battery in the use process, and improve over-discharge restorability of the storage battery, so that the service life of the storage battery is prolonged.
The preparation method of the lead plaster formula of the long-life valve-regulated lead-acid storage battery of the following examples and comparative examples comprises the following steps:
the preparation method of the positive lead paste comprises the following steps:
the method comprises the following steps: placing lead powder in the positive lead paste formula into a paste mixing machine for standing for 2 minutes, and then adding graphite and short fiber for dry stirring for 5 minutes;
step two: adding stannous sulfate and antimony trioxide in the positive lead paste formula into a paste mixing machine, and stirring for 8 minutes
Step three: adding the purified water in the positive lead plaster formula into a plaster combining machine within 2 minutes, and continuing stirring for 6 minutes after water is added to obtain a material A;
step four: adding dilute sulfuric acid into the material A, controlling the acid adding time to be 15 minutes, keeping the paste mixing temperature at 72 ℃ for 8 minutes, and stirring for 10 minutes after the acid adding is finished to obtain the anode lead paste;
the preparation method of the negative lead paste comprises the following steps:
the method comprises the following steps: putting lead powder in the negative lead plaster formula into a plaster combining machine for standing for 2-5 minutes, and then adding short fiber, humic acid, lignin, barium sulfate and barium stearate for dry stirring for 5-8 minutes;
step two: adding acetylene black and multi-walled carbon nanotubes in the negative lead paste formula into a paste mixing machine, and performing dry stirring for 10-15 minutes;
step three: adding the purified water in the negative lead plaster formula into a plaster combining machine within 2 minutes, and continuously stirring for 10-15 minutes after water is added to obtain a material B;
step four: and adding dilute sulfuric acid into the material B, controlling the acid adding time within 15 minutes, keeping the maximum paste mixing temperature at 68 ℃ for 5 minutes, and stirring for 10-15 minutes after the acid adding is finished to obtain the negative lead paste.
The positive lead plaster is qualified lead plaster when the apparent density of the positive lead plaster is within the range of 4.10-4.20g/cm3, and the negative lead plaster is qualified lead plaster when the apparent density of the negative lead plaster is within the range of 4.25-4.40g/cm 3;
the lead plaster can be used when the temperature is less than 45 ℃, and the storage time of the lead plaster is less than or equal to 4 h;
examples 1 to 3:
the positive lead plaster formula comprises:
name of Material | Example 1 (parts by weight) | Example 2 (parts by weight) | Example 3 (parts by weight) |
Lead powder | 990 | 1000 | 1010 |
Dilute sulfuric acid | 100 | 110 | 120 |
Short fiber (Polypropylene fiber) | 1.2 | 1.5 | 1.8 |
Purified water | 106 | 116 | 126 |
Graphite | 1 | 2.0 | 3 |
Stannous sulfate | 1 | 1.2 | 1.5 |
Antimony trioxide | 1.2 | 1.6 | 1.8 |
The negative lead plaster formula comprises:
name of Material | Example 1 (parts by weight) | Example 1 (parts by weight) | Example 1 (parts by weight) |
Lead powder | 990 | 1000 | 1010 |
Dilute sulfuric acid | 70 | 80 | 90 |
Purified water | 105 | 114 | 120 |
Short fiber (Polypropylene fiber) | 1 | 1.2 | 1.5 |
Humic acid | 2.5 | 2.8 | 3.5 |
Lignin | 1 | 1.5 | 2 |
Barium sulfate | 6 | 8.0 | 10 |
Acetylene black | 1.2 | 1.7 | 2.2 |
Multiwalled carbon nanotube | 1 | 1.3 | 2 |
Barium stearate | 1 | 1.5 | 2 |
Comparative example 1 (material for a conventional battery formulation) was formulated as follows:
the positive lead plaster formula comprises:
name of Material | Comparative example 1 (parts by weight) |
Lead powder | 1000 |
Dilute sulfuric acid | 110 |
Short fiber | 1.5 |
Purified water | 116 |
Graphite | 2.0 |
The negative lead plaster formula comprises:
name of Material | Comparative example 1 (parts by weight) |
Lead powder | 1000 |
Dilute sulfuric acid | 75 |
Purified water | 120 |
Short fiber | 0.9 |
Humic acid | 2.0 |
Lignin | 1.2 |
Barium sulfate | 6.5 |
Barium stearate | 1.3 |
The requirements of the materials of the positive and negative electrode lead pastes of examples 1 to 3 are as follows:
the positive lead plaster formula comprises:
name of Material | Require that |
Lead powder | The oxidation degree is 75 to 80 percent |
Dilute sulfuric acid | Density d 1.400g/cm3 |
Purified water | The conductivity is less than or equal to 1 mu s/cm |
Graphite | High grade pure 900 mesh |
The negative lead plaster formula comprises:
name of Material | Require that |
Lead powder | The oxidation degree is 74 to 80 percent |
Dilute sulfuric acid | Density d 1.400g/cm3 |
Purified water | The conductivity is less than or equal to 1 mu s/cm |
Short fiber | Polypropylene fiber |
Humic acid | ≥85% |
Multiwalled carbon nanotube | Diameter of 10nm |
The basic performance, the heavy load life of the storage battery, and the heavy load life of the storage battery obtained in examples 1 to 3 and comparative example 1 were measured to obtain the data shown in the following tables 1, 2, and 3, respectively:
TABLE 1
TABLE 2
TABLE 3
From the data in tables 1-3 above, it can be seen that the basic performance and life of the batteries made with the diachylon formulations of the present invention are significantly improved over conventional batteries.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (7)
1. The lead plaster formula of the long-life valve-regulated lead-acid storage battery comprises positive lead plaster and negative lead plaster, and is characterized in that: the positive lead plaster comprises the following components in parts by weight:
lead powder 990-1010 parts, dilute sulfuric acid 100-120 parts, short fiber 1.2-1.8 parts, purified water 106-126 parts, graphite 1-3 parts, stannous sulfate 1-1.5 parts, and antimony trioxide 1.2-1.8 parts;
the negative lead plaster comprises the following components in parts by weight: lead powder 990-1010 parts, dilute sulfuric acid 70-90 parts, purified water 105-120 parts, short fiber 1-1.5 parts, humic acid 2.5-3.5 parts, lignin 1-2 parts, barium sulfate 6-10 parts, acetylene black 1.2-2.2 parts, multi-walled carbon nanotube 1-2 parts, and barium stearate 1-2 parts;
the oxidation degree of the lead powder is 74-80%, the density d of the dilute sulfuric acid is 1.400g/cm3, the conductivity of the purified water is less than or equal to 1 mu s/cm, and the diameter of the multi-wall carbon nano tube is 5-15 nm;
the stannous sulfate and the antimony trioxide are both in powder form;
the short fiber is one or more of polypropylene, polyester and polyethylene.
2. A high lifetime as claimed in claim 1The lead plaster formula of the valve-regulated lead-acid storage battery is characterized in that: the apparent density of the positive lead paste is 4.10-4.20g/cm3The apparent density of the negative pole lead paste is 4.25-4.40g/cm3。
3. The lead paste formulation for a long-life valve-regulated lead-acid battery according to claim 1, wherein: the short fiber is polypropylene fiber.
4. The lead paste formulation for a long-life valve-regulated lead-acid battery according to claim 1, wherein: the positive lead plaster comprises the following components in parts by weight: 1000 portions of lead powder, 120 portions of dilute sulfuric acid, 1.5 to 1.8 portions of short fiber, 126 portions of purified water, 2 to 3 portions of graphite, 1.2 to 1.5 portions of stannous sulfate and 1.6 to 1.8 portions of antimony trioxide;
the negative lead plaster comprises the following components in parts by weight: 1000 portions of lead powder, 80 to 90 portions of dilute sulfuric acid, 120 portions of purified water 114, 1.2 to 1.5 portions of short fibers, 2.5 to 3.5 portions of humic acid, 1.5 to 2 portions of lignin, 8 to 10 portions of barium sulfate, 1.7 to 2.2 portions of acetylene black, 1.3 to 2 portions of multi-walled carbon nano-tubes and 1.5 to 2 portions of barium stearate.
5. The lead plaster formula of the long-life valve-regulated lead-acid storage battery according to claim 4, wherein the formula comprises the following components in percentage by weight: the positive lead plaster comprises the following components in parts by weight: 1000 parts of lead powder, 110 parts of dilute sulfuric acid, 1.5 parts of short fibers, 116 parts of purified water, 2 parts of graphite, 1.2 parts of stannous sulfate and 1.6 parts of antimony trioxide;
the negative lead plaster comprises the following components in parts by weight: 1000 parts of lead powder, 80 parts of dilute sulfuric acid, 114 parts of purified water, 1.2 parts of short fibers, 2.5 parts of humic acid, 1.5 parts of lignin, 8 parts of barium sulfate, 1.7 parts of acetylene black, 1.3 parts of multi-walled carbon nanotubes and 1.5 parts of barium stearate;
the oxidation degree of the lead powder is 75 percent, and the density d of the dilute sulfuric acid is 1.400g/cm3The diameter of the multi-wall carbon nano tube is 10 nm.
6. The method of preparing a lead paste formulation for a long-life valve-regulated lead-acid battery according to any one of claims 1 to 5, characterized in that:
the preparation method of the positive lead paste comprises the following steps:
the method comprises the following steps: placing lead powder in the positive lead plaster formula into a plaster combining machine for standing for 2-5 minutes, and then adding graphite and short fiber for dry stirring for 5-8 minutes;
step two: adding stannous sulfate and antimony trioxide in the positive lead paste formula into a paste mixing machine, and stirring for 8-10 minutes
Step three: adding the purified water in the positive lead plaster formula into a plaster combining machine within 2 minutes, and continuing stirring for 6-10 minutes after water is added to obtain a material A;
step four: adding dilute sulfuric acid into the material A, controlling the acid adding time within 15 minutes, keeping the paste mixing temperature at 72 ℃ for 8 minutes, and stirring for 10-15 minutes after the acid adding is finished to obtain the anode lead paste;
the preparation method of the negative lead paste comprises the following steps:
the method comprises the following steps: putting lead powder in the negative lead plaster formula into a plaster combining machine for standing for 2-5 minutes, and then adding short fiber, humic acid, lignin, barium sulfate and barium stearate for dry stirring for 5-8 minutes;
step two: adding acetylene black and multi-walled carbon nanotubes in the negative lead paste formula into a paste mixing machine, and performing dry stirring for 10-15 minutes;
step three: adding the purified water in the negative lead plaster formula into a plaster combining machine within 2 minutes, and continuously stirring for 10-15 minutes after water is added to obtain a material B;
step four: and adding dilute sulfuric acid into the material B, controlling the acid adding time within 15 minutes, keeping the maximum paste mixing temperature at 68 ℃ for 5 minutes, and stirring for 10-15 minutes after the acid adding is finished to obtain the negative lead paste.
7. The method of preparing a lead paste formulation for a long-life valve-regulated lead-acid battery according to claim 6, wherein: the storage time of the positive lead plaster and the negative lead plaster in the paste combining machine is less than or equal to 4 h.
Priority Applications (1)
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CN113644270A (en) * | 2021-08-11 | 2021-11-12 | 河南超威电源有限公司 | High-capacity positive lead paste and preparation method thereof |
CN114267886A (en) * | 2021-12-09 | 2022-04-01 | 肇庆理士电源技术有限公司 | Automobile startup and shutdown EFB battery based on high charge acceptance and preparation method |
CN114530600A (en) * | 2021-10-28 | 2022-05-24 | 安徽力普拉斯电源技术有限公司 | Formula and preparation method of positive lead paste of energy storage battery |
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