CN111416123A - Additive for improving performance of lead-acid storage battery positive lead plaster - Google Patents
Additive for improving performance of lead-acid storage battery positive lead plaster Download PDFInfo
- Publication number
- CN111416123A CN111416123A CN202010220749.2A CN202010220749A CN111416123A CN 111416123 A CN111416123 A CN 111416123A CN 202010220749 A CN202010220749 A CN 202010220749A CN 111416123 A CN111416123 A CN 111416123A
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- China
- Prior art keywords
- lead
- additive
- storage battery
- acid storage
- improving
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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
- H01M4/14—Electrodes for lead-acid accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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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- 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
Abstract
The invention relates to an additive for improving the performance of a lead-acid storage battery anode lead plaster, which comprises 30-50 wt% of colloidal graphite, 20-40 wt% of tetrabasic lead sulfate (4BS), 5-10 wt% of antimony trioxide, 9-19 wt% of sodium perborate, 3-5 wt% of polyaniline and 1-3 wt% of PVDF (polyvinylidene fluoride); the using amount of the additive is 0.5-1.5 wt% of the mass of the lead powder, wherein the specification of the colloidal graphite is powder with the particle size of less than or equal to 2 mu m, the specification of the tetrabasic lead sulfate is powder with the particle size of less than or equal to 20 mu m, and the additive is added in the dry mixing process of paste after premixing. The invention aims to overcome the defects in the prior art and provide the positive lead plaster additive which is beneficial to shortening the curing time of a polar plate, improving the formation effect of the polar plate, relieving the falling of active substances and improving the interface bonding force of a grid and a lead active substance so as to prolong the service life of a lead-acid storage battery.
Description
Technical Field
The invention relates to the field of lead-acid storage batteries, in particular to an additive for improving the performance of positive pole lead plaster of a lead-acid storage battery.
Background
With the development of science and technology, industries such as communication, energy storage, electric power and the like are rapidly developed, wherein the development prospect of the energy storage technology is very wide, and more researches are also carried out in the research of the energy storage field.
According to different energy storage requirements, the energy storage technology can be divided into various energy storage technologies such as chemistry, electromagnetism and the like. The electrochemical energy storage technology is the fastest one in the chemical energy storage, and the lead-acid storage battery is the most representative in the electrochemical energy storage technology, and the lead-acid storage battery has the advantages of high safety performance, good cost performance, recyclability and the like, and occupies a leading position in a plurality of new energy batteries. Because the cycle life of the lead-acid storage battery is limited, the application of the lead-acid storage battery in energy storage is seriously influenced, and therefore, scientific research personnel also constantly strive to improve the cycle life of the battery.
The softening and falling of the positive active material are one of the main factors influencing the cycle life of the lead-acid storage battery at present, and the additive is added into the lead plaster formula from the direction of the lead-acid storage battery positive lead plaster additive, so that the skeleton structure of the positive active material can be enhanced, the binding force between a grid and an active material interface is improved, and the problem of falling of the active material is relieved, thereby achieving the purposes of improving the lead plaster performance of the positive electrode of the lead-acid storage battery and prolonging the service life of the lead-acid storage battery.
Disclosure of Invention
The invention aims to overcome the defect of softening and falling of the positive active material in the prior art, and provides the positive lead paste additive which is beneficial to shortening the curing time of a polar plate, improving the formation effect of the polar plate, relieving the falling of the active material and improving the interface bonding force of a grid and the lead active material so as to prolong the service life of a lead-acid storage battery.
The technical scheme for realizing the purpose of the invention is as follows: the additive for improving the performance of the lead-acid storage battery positive electrode lead paste comprises, by mass, 30-50 wt.% of colloidal graphite, 20-40 wt.% of tetrabasic lead sulfate (4BS), 5-10 wt.% of antimony trioxide, 9-19 wt.% of sodium perborate, 3-5 wt.% of polyaniline and 3-3 wt.% of PVDF 1.
Further, the additive is used in an amount of 0.5-1.5 wt.% based on the mass of the lead powder.
Furthermore, the colloidal graphite is in a powdery shape, and the particle size is less than or equal to 2 mu m.
Further, the specification of the tetrabasic lead sulfate is that the grain diameter is less than or equal to 20 mu m.
Further, the additives are added during dry blending with the paste after premixing.
After the technical scheme is adopted, the invention has the following positive effects:
(1) the sodium perborate in the additive can make the grain size of the active substance uniform, improve the crystal structure of the active substance, improve the cohesive force among the active substances, improve the formation effect of the battery by adding tetrabasic lead sulfate, facilitate the generation of α -PbO2 in the active substance, keep the good porous structure of the active substance, improve the conductivity of the positive plate by adding colloidal graphite, facilitate the proceeding of electrochemical reaction, increase the reaction between a grid and the active substance by adding antimony trioxide, enhance the binding force of an interface, greatly improve the conductivity of the battery, reduce the internal resistance of the battery, and achieve the purpose of prolonging the service life of the battery by adding the polyaniline.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 shows comparative experimental data of experiments according to the present invention.
Detailed Description
The additive comprises, by mass, 30-50 wt.% of colloidal graphite, 20-40 wt.% of tetrabasic lead sulfate (4BS), 5-10 wt.% of antimony trioxide, 9-19 wt.% of sodium perborate, 3-5 wt.% of polyaniline and 1-3 wt.% of PVDF; the using amount of the additive is 0.5-1.5 wt% of the mass of the lead powder, wherein the specification of the colloidal graphite is powder with the particle size of less than or equal to 2 mu m, the specification of the tetrabasic lead sulfate is powder with the particle size of less than or equal to 20 mu m, and the additive is added in the dry mixing process of paste after premixing.
(example 1)
The using amount of the additive is 0.5-1.5 wt.% of the mass of the lead powder, and specifically, the additive comprises the following components in percentage by mass: 30 wt.% of colloidal graphite, 40 wt.% of tetrabasic lead sulfate (4BS), 10 wt.% of antimony trioxide, 16 wt.% of sodium perborate, 3 wt.% of polyaniline and 1wt wt.% of PVDF, wherein the colloidal graphite is in a powder shape with the particle size of less than or equal to 2 mu m, the tetrabasic lead sulfate is in a powder shape with the particle size of less than or equal to 20 mu m, and the additive is added in the dry mixing process of paste after premixing.
(example 2)
The using amount of the additive is 0.5-1.5 wt.% of the mass of the lead powder, and specifically, the additive comprises the following components in percentage by mass: 45 wt.% of colloidal graphite, 20 wt.% of tetrabasic lead sulfate (4BS), 10 wt.% of antimony trioxide, 19 wt.% of sodium perborate, 4 wt.% of polyaniline and 2wt wt.% of PVDF, wherein the specification of the colloidal graphite is powder with the particle size of less than or equal to 2 mu m, the specification of the tetrabasic lead sulfate is powder with the particle size of less than or equal to 20 mu m, and the additive is added in the dry mixing process of paste after premixing.
(example 3)
The using amount of the additive is 0.5-1.5 wt.% of the mass of the lead powder, and specifically, the additive comprises the following components in percentage by mass: 50 wt.% of colloidal graphite, 38 wt.% of tetrabasic lead sulfate (4BS), 5 wt.% of antimony trioxide, 9 wt.% of sodium perborate, 5 wt.% of polyaniline and 3wt wt.% of PVDF, wherein the colloidal graphite is in a powder shape with the particle size of less than or equal to 2 mu m, the tetrabasic lead sulfate is in a powder shape with the particle size of less than or equal to 20 mu m, and the additive is added in the dry mixing process of paste after premixing.
(comparative item 1)
The lead paste formulations were free of the additive components of examples 1-3.
(comparative item 2)
The using amount of the additive is 0.3-0.9 wt.% of the mass of the lead powder, and specifically, the additive comprises the following components in percentage by mass: 67 wt.% of colloidal graphite, 13 wt.% of antimony trioxide and 20 wt.% of sodium perborate, wherein the colloidal graphite is in a powder shape with the particle size of less than or equal to 2 μm, and the additive is added in the dry mixing process of paste after premixing.
And manufacturing a positive plate according to the proportion of the embodiment 1-3, manufacturing a sample battery by adopting a conventional negative plate, performing a drop test on the positive plate of the sample battery, and detecting the bonding force of the grid/lead paste in the positive plate. And according to the national standard GBT 22473-. Wherein, the comparison term is that the additive is not added in the positive lead plaster.
Referring to fig. 1, it can be seen from the test results according to the ratios of examples 1 to 3 that, when examples 1 to 3 of the present invention are applied, the drop weight loss test examples 1 to 3 are improved by 3 to 21% with respect to the comparative term, the charge acceptance test examples 1 to 3 are improved by 17 to 31.5% with respect to the comparative term, and the low temperature capacity test examples 1 to 3 are improved by 2 to 9.5% with respect to the comparative term. The additive is added into the positive lead plaster formula, so that the bonding force of a grid/lead plaster interface can be increased, the conductivity of the lead-acid storage battery is improved, and the purpose of improving the performance of the lead-acid storage battery is achieved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An additive for improving the performance of lead paste of a positive electrode of a lead-acid storage battery is characterized in that: the additive comprises, by mass, 30-50 wt.% of colloidal graphite, 20-40 wt.% of tetrabasic lead sulfate (4BS), 5-10 wt.% of antimony trioxide, 9-19 wt.% of sodium perborate, 3-5 wt.% of polyaniline and 3-3 wt.% of PVDF 1.
2. The additive for improving the performance of the positive electrode lead paste of the lead-acid storage battery according to claim 1, wherein the additive comprises the following components in percentage by weight: the using amount of the additive is 0.5-1.5 wt% of the mass of the lead powder.
3. The additive for improving the performance of the positive electrode lead paste of the lead-acid storage battery according to claim 1, wherein the additive comprises the following components in percentage by weight: the colloidal graphite is in a powdery state, and the particle size is less than or equal to 2 mu m.
4. The additive for improving the performance of the positive electrode lead paste of the lead-acid storage battery according to claim 1, wherein the additive comprises the following components in percentage by weight: the specification of the tetrabasic lead sulfate is that the grain diameter is less than or equal to 20 mu m.
5. The additive for improving the performance of the positive electrode lead paste of the lead-acid storage battery according to any one of claims 1 to 4, wherein: the additives are added after premixing during dry mixing with the paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220749.2A CN111416123A (en) | 2020-03-26 | 2020-03-26 | Additive for improving performance of lead-acid storage battery positive lead plaster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010220749.2A CN111416123A (en) | 2020-03-26 | 2020-03-26 | Additive for improving performance of lead-acid storage battery positive lead plaster |
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| CN111416123A true CN111416123A (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010220749.2A Pending CN111416123A (en) | 2020-03-26 | 2020-03-26 | Additive for improving performance of lead-acid storage battery positive lead plaster |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413936A (en) * | 2013-07-12 | 2013-11-27 | 超威电源有限公司 | Formula of lead-acid storage battery positive pole diachylon |
| CN103855399A (en) * | 2012-12-02 | 2014-06-11 | 天能集团（河南）能源科技有限公司 | Lead storage battery positive electrode lead plaster |
| CN108711622A (en) * | 2018-05-04 | 2018-10-26 | 江苏海宝电池科技有限公司 | A kind of long-life deeper cavity positive active material and preparation method thereof |
-
2020
- 2020-03-26 CN CN202010220749.2A patent/CN111416123A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855399A (en) * | 2012-12-02 | 2014-06-11 | 天能集团（河南）能源科技有限公司 | Lead storage battery positive electrode lead plaster |
| CN103413936A (en) * | 2013-07-12 | 2013-11-27 | 超威电源有限公司 | Formula of lead-acid storage battery positive pole diachylon |
| CN108711622A (en) * | 2018-05-04 | 2018-10-26 | 江苏海宝电池科技有限公司 | A kind of long-life deeper cavity positive active material and preparation method thereof |
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Application publication date: 20200714 |