CN111525125A - Positive lead plaster for lead-acid storage battery and preparation method thereof - Google Patents

Positive lead plaster for lead-acid storage battery and preparation method thereof Download PDF

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Publication number
CN111525125A
CN111525125A CN202010214163.5A CN202010214163A CN111525125A CN 111525125 A CN111525125 A CN 111525125A CN 202010214163 A CN202010214163 A CN 202010214163A CN 111525125 A CN111525125 A CN 111525125A
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China
Prior art keywords
lead
positive
positive electrode
storage battery
paste
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Pending
Application number
CN202010214163.5A
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Chinese (zh)
Inventor
胡晨
李恩雨
蔡先玉
金翼
王绥军
孙召琴
穆居易
黎可
于冉
尹秀娟
邢昱
刘家亮
刘超群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI filed Critical State Grid Corp of China SGCC
Priority to CN202010214163.5A priority Critical patent/CN111525125A/en
Publication of CN111525125A publication Critical patent/CN111525125A/en
Pending legal-status Critical Current

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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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
    • 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 & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The positive lead plaster for the lead-acid storage battery comprises the following components in percentage by mass: 0.3-1.5% of positive electrode additive, 7.0-7.5% of red lead, 0.07-0.09% of short fiber, 8.5-9.5% of deionized water, 10.5-12% of sulfuric acid and the balance of lead powder, wherein the additive is added into the lead paste to improve the conductivity of the active substance, improve the interface structure of the lead paste/grid and improve the interface binding force, thereby prolonging the cycle life of the battery and solving the problem of low service life of the lead-acid storage battery.

Description

Positive lead plaster for lead-acid storage battery and preparation method thereof
Technical Field
The application relates to a positive lead plaster for a lead-acid storage battery, and also relates to a preparation method of the positive lead plaster for the lead-acid storage battery.
Background
Lead acid battery is from birth to the lead acid battery is wide application in fields such as energy storage, communication since birth, nevertheless along with the development of science and technology, more and more novel battery is gushed into the market, and lead acid battery's application advantage is weakened gradually, and how under the prerequisite that keeps its price advantage, improve lead acid battery's competitiveness, then become the problem that each battery enterprise need not to solve urgently.
In the use process of the lead-acid storage battery, the cycle life of the battery is reduced and the battery finally loses efficacy due to the corrosion deformation of a positive grid, poor bonding force of a grid/lead paste interface, lead paste softening and falling and the like. Therefore, how to increase the cycle life of the lead-acid battery becomes an urgent problem to be solved.
Disclosure of Invention
The application provides a positive lead plaster for a lead-acid storage battery and a preparation method thereof, which solve the problem of short service life of the lead-acid storage battery.
The application provides a positive lead plaster for a lead-acid storage battery, which comprises the following components in percentage by mass: 0.3-1.5% of positive electrode additive, 7.0-7.5% of red lead, 0.07-0.09% of short fiber, 8.5-9.5% of deionized water, 10.5-12% of sulfuric acid and the balance of lead powder.
Preferably, the positive electrode additive consists of graphite fibers and zinc oxide, and the ratio of the graphite fibers to the zinc oxide is 6: 4.
Preferably, the graphitization degree of the graphite fiber is more than or equal to 95%.
Preferably, the zinc oxide is a nanoscale white powder.
Preferably, the density of the sulfuric acid is 1.400g/cm3。
Preferably, the degree of oxidation of the lead powder is 75 ± 3%.
Preferably, the apparent density of the positive electrode lead paste is 3.8-4.1g/cm3。
The application also provides a preparation method of the positive lead plaster for the lead-acid storage battery, which comprises the following steps:
adding lead powder, positive additives, red lead and short fibers into a paste machine according to the mass percentage of the positive lead paste, and dry-mixing for 5-10 minutes;
adding deionized water into the paste machine, stirring for 5-10 min, adding sulfuric acid, and stirring until apparent density of lead paste is 3.8-4.1g/cm3And then, finishing the preparation of the positive lead paste.
Preferably, the stirring time for adding the sulfuric acid is not less than 15 minutes.
The application provides a positive lead plaster for a lead-acid storage battery and a preparation method thereof, which improve the conductivity of an active substance, improve the interface structure of the lead plaster/a grid and improve the interface bonding force by adding an additive into the lead plaster, thereby prolonging the cycle life of the battery and solving the problem of short service life of the lead-acid storage battery.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
In order to solve the problem that the service life of the existing acid storage battery is short and improve the cycle life of the battery, the application provides a positive lead plaster for a lead-acid storage battery, wherein the positive lead plaster comprises the following components in percentage by mass: 0.3-1.5% of positive electrode additive, 7.0-7.5% of red lead, 0.07-0.09% of short fiber, 8.5-9.5% of deionized water, 10.5-12% of sulfuric acid and the balance of lead powder.
The positive electrode additive consists of graphite fiber and zinc oxide in the ratio of 6 to 4. Wherein the graphitization degree of the graphite fiber is more than or equal to 95 percent. The zinc oxide is nano white powder.
The red lead is in powder form. The staple fibers were polypropylene fibers with a size of 3D x 1.5.
The density of the sulfuric acid is 1.400g/cm3。
The oxidation degree of the lead powder is 75 +/-3%.
The apparent density of the positive electrode lead paste is 3.8-4.1g/cm3。
Based on the same inventive concept, the application also provides a preparation method of the positive lead plaster for the lead-acid storage battery, which comprises the following steps: firstly, adding lead powder, an anode additive, red lead and short fibers into a paste machine according to the mass percentage of the anode lead paste, dry-mixing for 5-10 minutes, adding deionized water into the paste machine after the raw materials are uniformly mixed, adding sulfuric acid after stirring for 5-10 minutes, continuously stirring, and adding lead paste according to the apparent density of 3.8-4.1g/cm3And then, finishing the preparation of the positive lead paste. Wherein the stirring time for adding the sulfuric acid is not less than 15 minutes.
The present application is illustrated by the following specific examples. The formulations of the positive electrode lead pastes for lead-acid batteries according to the present application, according to the above formulation ranges, were verified by examples 1 to 3.
Example 1
The positive lead plaster comprises the following components in percentage by mass: 1.2% of positive electrode additive, 7.0% of red lead, 0.15% of short fiber, 9.5% of deionized water, 10.5% of sulfuric acid and the balance of lead powder.
Example 2
The positive lead plaster comprises the following components in percentage by mass: 1.5% of positive electrode additive, 7.2% of red lead, 0.2% of short fiber, 8.5% of deionized water, 12% of sulfuric acid and the balance of lead powder.
Example 3
The positive lead plaster comprises the following components in percentage by mass: 0.3% of positive electrode additive, 7.5% of red lead, 0.18% of short fiber, 9% of deionized water, 10.5% of sulfuric acid and the balance of lead powder.
Preparing a lead plaster raw material according to the proportion of the embodiment 1-3, adding lead powder, the positive electrode additive and red lead into a paste mixer, carrying out dry mixing for 5-10 minutes, adding deionized water after the raw materials are uniformly mixed, continuously mixing for 5-10 minutes, slowly adding sulfuric acid along with the mixing and stirring process, carrying out an acid adding process for not less than 15 minutes, and carrying out subsequent processes of a lead-acid storage battery after the apparent density of the lead plaster is 3.8-4.1g/cm 3.
The lead-acid storage battery prepared by the formula is respectively subjected to low-temperature capacity, charge acceptance and large-current discharge, the tests are carried out according to the national standard GB/T-22473-. The comparative lead paste was free of graphite fibers and zinc oxide.
Figure BDA0002423823870000031
According to the test results, it can be seen that, in examples 1 to 3 to which the present invention is applied, the low-temperature capacity is improved by 2% to 7%, the charge acceptance is improved by 60% to 86%, and the large-current discharge is improved by 18% to 21%, relative to the comparative terms. According to the data, the lead-acid storage battery manufactured by the formula can greatly improve the charge acceptance and the large-current discharge performance of the storage battery, can achieve the purpose of prolonging the cycle life of the battery, and solves the problem of short service life of the lead-acid storage battery.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.

Claims (9)

1. The positive lead plaster for the lead-acid storage battery is characterized by comprising the following components in percentage by mass: 0.3-1.5% of positive electrode additive, 7.0-7.5% of red lead, 0.07-0.09% of short fiber, 8.5-9.5% of deionized water, 10.5-12% of sulfuric acid and the balance of lead powder.
2. The positive electrode lead paste according to claim 1, wherein the positive electrode additive is composed of graphite fibers and zinc oxide in a ratio of 6: 4.
3. The positive electrode lead paste according to claim 2, wherein the degree of graphitization of the graphite fiber is not less than 95%.
4. The positive electrode lead paste according to claim 2, wherein the zinc oxide is a nano-scale white powder.
5. The positive electrode lead paste according to claim 1, wherein the density of the sulfuric acid is 1.400g/cm3。
6. The positive electrode lead paste according to claim 1, wherein the degree of oxidation of the lead powder is 75 ± 3%.
7. The positive electrode lead paste according to claim 1, wherein the apparent density of the positive electrode lead paste is 3.8-4.1g/cm3。
8. A preparation method of positive lead plaster for a lead-acid storage battery is characterized by comprising the following steps:
adding lead powder, positive additives, red lead and short fibers into a paste machine according to the mass percentage of the positive lead paste, and dry-mixing for 5-10 minutes;
adding deionized water into the paste machine, stirring for 5-10 min, adding sulfuric acid, stirring, and observingThe density is 3.8-4.1g/cm3And then, finishing the preparation of the positive lead paste.
9. The method of claim 8, wherein the stirring time for adding the sulfuric acid is not less than 15 minutes.
CN202010214163.5A 2020-03-24 2020-03-24 Positive lead plaster for lead-acid storage battery and preparation method thereof Pending CN111525125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113540441A (en) * 2021-06-30 2021-10-22 双登集团股份有限公司 Durable lead-acid storage battery positive lead paste and preparation method thereof
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105140511A (en) * 2015-06-29 2015-12-09 武汉非凡电源有限公司 Positive lead paste of lead-acid storage battery pole plate for deep circulation
CN107331863A (en) * 2017-08-11 2017-11-07 超威电源有限公司 A kind of lead-acid accumulator anode diachylon
CN107742724A (en) * 2017-11-09 2018-02-27 河南超威电源有限公司 A kind of lead-acid accumulator anode diachylon
CN109411750A (en) * 2018-09-18 2019-03-01 天能电池集团有限公司 A kind of lead storage battery for class high-multiplying power discharge of meeting an urgent need

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105140511A (en) * 2015-06-29 2015-12-09 武汉非凡电源有限公司 Positive lead paste of lead-acid storage battery pole plate for deep circulation
CN107331863A (en) * 2017-08-11 2017-11-07 超威电源有限公司 A kind of lead-acid accumulator anode diachylon
CN107742724A (en) * 2017-11-09 2018-02-27 河南超威电源有限公司 A kind of lead-acid accumulator anode diachylon
CN109411750A (en) * 2018-09-18 2019-03-01 天能电池集团有限公司 A kind of lead storage battery for class high-multiplying power discharge of meeting an urgent need

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113540441A (en) * 2021-06-30 2021-10-22 双登集团股份有限公司 Durable lead-acid storage battery positive lead paste and preparation method thereof
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

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Application publication date: 20200811

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