CN112467100A - Lead-acid storage battery positive electrode formula capable of shortening formation period and preparation method thereof - Google Patents

Lead-acid storage battery positive electrode formula capable of shortening formation period and preparation method thereof Download PDF

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Publication number
CN112467100A
CN112467100A CN202011214713.XA CN202011214713A CN112467100A CN 112467100 A CN112467100 A CN 112467100A CN 202011214713 A CN202011214713 A CN 202011214713A CN 112467100 A CN112467100 A CN 112467100A
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China
Prior art keywords
lead
storage battery
acid storage
formation
shortening
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Pending
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CN202011214713.XA
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Chinese (zh)
Inventor
董庆亮
毛洁
孙中五
刘巍
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Shuangdeng Group Co Ltd
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Shuangdeng Group Co Ltd
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Priority to CN202011214713.XA priority Critical patent/CN112467100A/en
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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
    • 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
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/446—Initial charging measures
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention relates to the field of lead-acid storage batteries, in particular to a lead-acid storage battery positive electrode formula capable of shortening a formation period and a preparation method thereof. The positive lead plaster comprises the following components in percentage by mass: lead powder: 70-80%, red lead: 5-20%, sulfuric acid (1.4 g/ml): 7-10%, short fiber: 0.1-0.5%, pure water: 7-12%, strong oxidant: 0.5 to 10 percent. The strong oxidant is one of sodium permanganate, sodium dichromate and sodium persulfate. The mass percentage ratio of the strong oxidant is 0.5-5%. The invention and the oxidation of PbO into PbO during the conventional formation2In contrast, the reactionShould be easier to perform so that the polarization is smaller and side reactions are less, avoiding unnecessary waste of electricity. The invention adopts the method of adjusting the formula of the positive lead paste and improving the formation system, shortens the formation period from 105h to 40h, greatly shortens the manufacturing period of the lead-acid storage battery, reduces the manufacturing cost and improves the delivery capacity of the lead-acid storage battery.

Description

Lead-acid storage battery positive electrode formula capable of shortening formation period and preparation method thereof
Technical Field
The invention relates to the field of lead-acid storage batteries, in particular to a lead-acid storage battery positive electrode formula capable of shortening a formation period and a preparation method thereof.
Background
In the energy storage and power markets, the lead-acid storage battery is in the mainstream of the market with the advantages of safety, low cost, recyclability and the like, but the lead-acid storage battery has a long production period, so that the production and manufacturing cost is high, the market delivery is not timely, the lead-acid storage battery needs to be stored in advance to meet the market, and the overstock and the waste of goods and funds are caused.
However, in the conventional formation process, the positive electrode lead paste is more difficult to form, and therefore, a method for improving the formation system is required to shorten the formation cycle of the lead-acid storage battery.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a lead-acid storage battery positive electrode formula capable of shortening the formation period and a preparation method thereof.
The technical scheme for realizing the purpose of the invention is as follows: a lead-acid storage battery positive electrode formula capable of shortening formation period comprises the following components:
the positive lead plaster comprises the following components in percentage by mass: lead powder: 70-80%, red lead: 5-20%, sulfuric acid (1.4 g/ml): 7-10%, short fiber: 0.1-0.5%, pure water: 7-12%, strong oxidant: 0.5 to 10 percent.
Further, the strong oxidant is one of sodium permanganate, sodium dichromate and sodium persulfate.
Further, the mass percentage ratio of the strong oxidant is 0.5-5%.
Furthermore, the apparent specific gravity of the positive lead plaster is 4.0-4.3g/cm3。
A preparation method of a lead-acid storage battery formula capable of shortening a formation period comprises the following steps:
s1, paste mixing: the weighed lead powder, red lead, short fibers, pure water and strong oxidant are sequentially mixed in a dry mode, a water-wet mode and an acid-acid mode, the paste mixing time is 30min, and the paste mixing temperature is controlled to be 50-70 ℃;
s2, assembling and forming: the formation system is formed by charging and discharging for two times for 40 hours, and the formation system specifically comprises the following steps:
step (ii) of Status of state Electric current Time
1 Charging of electricity 0.05C 2h
2 Charging of electricity 0.2C 9h
3 Charging of electricity 0.15C 9h
4 Charging of electricity 0.05C 8h
5 Standing still 0 1h
6 Volume inspection 0.25C 3h
7 Charging of electricity 0.25C 2h
8 Charging of electricity 0.2C 3h
9 Charging of electricity 0.025C 3h
Upon formation, the following reactions occur:
5PbO+2NaMnO4+3H2SO4＝Na2SO4+2MnSO4+5PbO2+3H2O
after the technical scheme is adopted, the invention has the following positive effects:
(1) the invention and the oxidation of PbO into PbO during the conventional formation2Compared with the prior art, the reaction is easier to carry out, so that the polarization is smaller, the side reaction is less, and unnecessary electric quantity waste is avoided.
(2) The invention adopts the method of adjusting the formula of the positive lead paste and improving the formation system, shortens the formation period from 105h to 40h, greatly shortens the manufacturing period of the lead-acid storage battery, reduces the manufacturing cost and improves the delivery capacity of the lead-acid storage battery.
Detailed Description
(example 1)
1. Hemiao cream
The paste mixing machine is used for mixing paste of 500kg, and the paste mixing positive electrode formula is as follows:
lead powder: 350kg of
Red lead: 50 kg;
sulfuric acid: 45 kg;
pure water: 50 kg;
NaMnO4：8kg(2％)
short fiber: 700g
Mixing the paste according to the dry mixing, the water wet mixing and the acid mixing, wherein the paste mixing time is 30min, and the paste mixing temperature is controlled at 50-70 ℃;
the cathode formulation was made according to the current starting battery formulation process.
2. Formation system
The sample battery is a 60Ah starting battery, and the formation formula is as follows:
Figure BDA0002759951560000031
totally, 4 batteries are manufactured, and the capacity detection voltages are respectively as follows: 11.32V, 11.28V, 11.25V and 11.30V, and meets the process requirement of more than or equal to 10.8V.
3. All the working procedures of coating, curing, assembling, acid injection and the like are carried out according to the prior 60Ah starting battery tool
Performing the process;
4. capacity detection
The C20 capacities for the 4 cells were: 68.5Ah, 67.2Ah, 66.7Ah and 68Ah, and meets the product standard.
(example 2)
1. Hemiao cream
The paste mixing machine is used for mixing paste of 500kg, and the paste mixing positive electrode formula is as follows:
lead powder: 350kg of
Red lead: 50 kg;
sulfuric acid: 45 kg;
pure water: 50 kg;
NaMnO4：20kg(5％)
short fiber: 700g
Other procedures were the same as in example 1
2. Capacity detection
The C20 capacities for the 4 cells were: 64.2Ah, 63.3Ah, 62.8Ah, 65.1Ah, meet product standards, but are lower than in example 1.
(example 3)
1. Hemiao cream
The paste mixing machine is used for mixing paste of 500kg, and the paste mixing positive electrode formula is as follows:
lead powder: 350kg of
Red lead: 50 kg;
sulfuric acid: 45 kg;
pure water: 50 kg;
NaMnO4：2kg(0.5％)
short fiber: 700g
Other procedures were the same as in example 1
2. Capacity detection
The C20 capacities for the 4 cells were: 62.7Ah, 63.1Ah, 62Ah, 61Ah, meet product standards, but are lower than in example 1.
In conclusion, the effect is optimal when the addition amount of the oxidant in the positive electrode lead paste is 2%.
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. A lead-acid storage battery anode formula capable of shortening formation period and a preparation method thereof are characterized in that:
the positive lead plaster comprises the following components in percentage by mass: lead powder: 70-80%, red lead: 5-20%, sulfuric acid (1.4 g/ml): 7-10%, short fiber: 0.1-0.5%, pure water: 7-12%, strong oxidant: 0.5 to 10 percent.
2. The lead-acid storage battery positive electrode formula capable of shortening formation cycle according to claim 1, characterized in that: the strong oxidant is one of sodium permanganate, sodium dichromate and sodium persulfate.
3. The lead-acid storage battery positive electrode formula capable of shortening formation cycle according to claim 1, characterized in that: the mass percentage ratio of the strong oxidant is 0.5-5%.
4. The lead-acid storage battery positive electrode formula capable of shortening formation cycle according to claim 1, characterized in that: the apparent specific gravity of the positive lead plaster is 4.0-4.3g/cm3。
5. A preparation method of a lead-acid storage battery formula capable of shortening a formation period is characterized by comprising the following steps: the method comprises the following steps:
s1, paste mixing: the weighed lead powder, red lead, short fibers, pure water and strong oxidant are sequentially mixed in a dry mode, a water-wet mode and an acid-acid mode, the paste mixing time is 30min, and the paste mixing temperature is controlled to be 50-70 ℃;
s2, assembling and forming: and the formation system comprises two charging and one discharging for 40 h.
CN202011214713.XA 2020-11-04 2020-11-04 Lead-acid storage battery positive electrode formula capable of shortening formation period and preparation method thereof Pending CN112467100A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10134810A (en) * 1996-10-30 1998-05-22 Toyota Motor Corp Manufacture of lead-acid battery
CN1482696A (en) * 2002-09-11 2004-03-17 江苏隆源双登电源有限公司 Formulation and solidifying process for anode lead plaster of long and narrow type valve controlled sealed lead acid accumulator
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10134810A (en) * 1996-10-30 1998-05-22 Toyota Motor Corp Manufacture of lead-acid battery
CN1482696A (en) * 2002-09-11 2004-03-17 江苏隆源双登电源有限公司 Formulation and solidifying process for anode lead plaster of long and narrow type valve controlled sealed lead acid accumulator
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

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Application publication date: 20210309

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