CN114614005A - Maintenance-free battery for aerial work platform and preparation method thereof - Google Patents

Maintenance-free battery for aerial work platform and preparation method thereof Download PDF

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Publication number
CN114614005A
CN114614005A CN202210138288.3A CN202210138288A CN114614005A CN 114614005 A CN114614005 A CN 114614005A CN 202210138288 A CN202210138288 A CN 202210138288A CN 114614005 A CN114614005 A CN 114614005A
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China
Prior art keywords
battery
plate
water
paste
work platform
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CN202210138288.3A
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Inventor
朱继昌
李志兵
李振华
程先清
崔辉
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Anhui Uplus Energy Battery Technology Co ltd
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Anhui Uplus Energy Battery Technology Co ltd
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Priority to CN202210138288.3A priority Critical patent/CN114614005A/en
Publication of CN114614005A publication Critical patent/CN114614005A/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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H01M10/12—Construction or manufacture
    • H01M10/14—Assembling a group of electrodes or separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • 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)
  • Battery Electrode And Active Subsutance (AREA)
  • Cell Separators (AREA)

Abstract

The invention provides a maintenance-free battery for an aerial work platform, which comprises a polar plate, a partition plate, a battery shell and electrolyte, wherein the polar plate comprises the following components in percentage by mass: 75-85% of lead powder, 6-10% of water, 5-9% of sulfuric acid, 0.5-0.9% of an anode auxiliary material, 2-2.5% of a cathode auxiliary material and a paste coating plate; the partition board comprises the following components in percentage by mass: SiO2265.40％、Al2O33％、CaO5.88％、MgO2.92％、Na2O16.11％、K2O0.69％、B2O35.31％、F21.02% and thermoplastic polyester 0.3%. The invention has the advantages that: increase the acid content in the polar plate and pass through the hydrophobic material of the baffle plateThe addition of the material ensures an oxygen circulation channel of the AGM separator, reduces water loss in the battery charging and discharging process, and in addition, the acid amount in the battery per ampere hour is increased by 3-10% compared with that of the conventional AGM battery by adjusting the thickness of the battery separator and the assembly pressure, so that the maintenance-free effect of the battery is achieved.

Description

Maintenance-free battery for aerial work platform and preparation method thereof
Technical Field
The invention relates to the technical field of batteries, in particular to a maintenance-free battery for an aerial work platform and a preparation method thereof.
Background
The lead-acid storage battery for power of aerial work platforms and the like has complex use working conditions, frequent heavy current working and wide working environment temperature range, and can reach minus 30 ℃ to minus 40 ℃ below zero, and the rich-solution battery is used under the conventional condition. In recent years, due to the change of customer demands, the rich-solution batteries are not frequently added with water, so that customers seek poor-solution maintenance-free batteries, but the poor-solution batteries are low in electrolyte and low in heat conduction speed, thermal runaway is easily generated, and the batteries are swelled.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a maintenance-free battery for an aerial work platform and a preparation method thereof.
The invention solves the technical problems through the following technical means:
the maintenance-free battery for the aerial work platform comprises a polar plate, a partition plate, a battery shell and electrolyte, wherein the polar plate comprises the following components in percentage by mass: 75-85% of lead powder, 6-10% of water, 5-9% of sulfuric acid, 0.5-0.9% of an anode auxiliary material, 2-2.5% of a cathode auxiliary material and a paste coating plate;
the partition board comprises the following components in percentage by mass: SiO2265.40％、Al2O33％、CaO5.88％、MgO2.92％、Na2O16.11％、K2O0.69％、B2O35.31％、F21.02% and thermoplastic polyester 0.3%.
Preferably, the cathode auxiliary material: raw board powder 0.5%, carbon 0.2%, stannous sulfate 0.1%, antimony trioxide 0.15%, short fiber 0.07%, phosphoric acid 0.02%, silica gel 0.2% and NaHCO30.1％。
Preferably, the negative electrode auxiliary material: 0.3% of lignin, 1.0% of barium sulfate, 0.3% of carbon black, 0.07% of short fiber, 0.2% of silica gel and NaHCO30.1％。
Preferably, the silica gel and NaHCO are used3In a ratio of 2: 1.
Preferably, the thickness of the partition plate is 0.7mm, and the assembly pressure of the partition plate is 40 kPa.
A maintenance-free battery for an aerial work platform and a preparation method thereof comprise the following steps:
s1, preparing a polar plate: mixing paste, coating a plate, curing, drying and roll cutting the plate;
s2, preparing a separator: preparing water, weighing and proportioning, pulping, mixing pulp, forming, drying, rolling, cutting and packaging;
s3, assembling the battery: the plate, separator, battery case and electrolyte are assembled.
Preferably, the plate preparation comprises the following steps:
s1.1, mixing paste: adding lead powder and auxiliary materials into a paste mixer, stirring for 5min in a dry mode, then adding water, quickly adding water for less than or equal to 2min, stirring for 5min in a wet mode, then adding acid, slowly adding acid, and controlling the acid adding time to be about 13 min; after adding acid, raising the temperature of the positive electrode and the paste to 72 ℃, then cooling, wherein the peak temperature of the negative electrode and the paste is less than 65 ℃, and stirring for 10-15 min after adding acid;
s1.2, coating a plate: uniformly coating positive lead paste on the positive plate, and uniformly coating negative lead paste on the negative plate;
s1.3, curing and drying;
s1.4, shearing a plate by a roller;
the preparation of the separator comprises the following steps:
s2.1, water preparation: preparing pure water;
s2.2, weighing ingredients: weighing the components in proportion;
s2.3, pulping: opening a valve of a pulping machine, injecting deionized water, adding concentrated sulfuric acid, adjusting the pH value of pulping liquid to a specified value, and slowly pouring weighed ingredients into a pulping tank for stirring and mixing;
s2.4, size mixing: pumping the pulped ingredients into a large tank, opening a valve, adding deionized water to dilute the ingredients to a certain concentration, stirring the ingredients by using an electric stirrer while pumping, measuring and adjusting the pH value of the slurry to a specified value after stirring for a certain time, pumping the mixture into another large tank, and supplying the mixture to a production line while stirring;
s2.5, forming: opening a pulp inlet valve, feeding pulp from the bottom and overflowing the pulp onto a production line, driving the pulp through a polyester mesh belt, pumping and adjusting pulp water through a secondary vacuum pump, feeding the pulp into a rubber roller for rolling, and adjusting the thickness and the flatness of a partition plate through adjusting the pressure on two sides of a rolling shaft;
s2.6, drying: the glass fiber enters a drying box, the temperature in the box is automatically controlled, the glass fiber has the characteristics of high porosity and high water-based property, and the ration is 50-400 g/(m)2Mm), the thickness is 0.4-3 mm, the strength is low, and the drying temperature and the hot air speed are required to be adjusted, so that a good hot air effect is achieved;
s2.7, coiling and cutting: cutting the partition board with a head separating machine, rolling the partition board and a winding machine into a cylinder, and cutting the partition board with a cutting machine.
S2.8, packaging: after cutting, finishing, packaging with transparent plastic packaging paper, sealing, and placing into a packaging box.
The invention has the advantages that: the acid content in the polar plate is increased, meanwhile, an AGM separator oxygen circulation channel is ensured by adding a separator hydrophobic material, the water loss in the battery charging and discharging process is reduced, in addition, the acid content in the battery per ampere hour is increased by 3-10% compared with that of the conventional AGM battery by adjusting the thickness and the assembly pressure of the battery separator, and the maintenance-free effect of the battery is achieved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The utility model provides an aerial working platform non-maintaining battery, includes polar plate, baffle, battery case and electrolyte, the polar plate composition is according to weight: lead powder 1000kg, 110kg of water, 100kg of sulfuric acid, 10kg of cathode auxiliary material, 30kg of anode auxiliary material and a paste coating plate; the density of the sulfuric acid is 1.4g/cm3
The partition board comprises the following components in percentage by mass: SiO22654kg、Al2O330kg、CaO58.8kg、MgO29.2kg、Na2O161.1kg、K2O06.9kg、B2O353.1kg、F210.2kg and 3kg of thermoplastic polyester.
And (3) anode auxiliary materials: 0.05kg of raw plate powder, 0.02kg of carbon, 0.01kg of stannous sulfate, 0.015kg of antimony trioxide, 0.007kg of short fiber, 0.002kg of phosphoric acid, 0.02kg of silica gel and NaHCO30.01kg；
And (3) negative electrode auxiliary materials: 0.09kg of lignin, 0.3kg of barium sulfate, 0.09kg of carbon black, 0.021kg of short fiber, 0.06kg of silica gel and NaHCO30.03kg。
1000kg of lead powder, 110kg of water, 100kg of sulfuric acid, 10kg of positive auxiliary materials and paste coating plate to prepare a positive electrode plate;
1000kg of lead powder, 110kg of water, 100kg of sulfuric acid, 30kg of negative auxiliary material and paste coating plate to prepare a negative electrode plate
The thickness of the partition plate is 0.7mm, and the assembly pressure of the partition plate is 40 kPa.
A maintenance-free battery for an aerial work platform and a preparation method thereof comprise the following steps:
s1, preparing a polar plate: mixing paste, coating a plate, curing, drying and roll cutting the plate;
s2, preparing a separator: preparing water, weighing and proportioning, pulping, mixing pulp, forming, drying, rolling, cutting and packaging;
s3, assembling the battery: the plate, separator, battery case and electrolyte are assembled.
The preparation of the polar plate comprises the following steps:
s1.1, mixing paste: adding lead powder and auxiliary materials into a paste mixer, stirring for 5min in a dry mode, then adding water, quickly adding water for less than or equal to 2min, stirring for 5min in a wet mode, then adding acid, slowly adding acid, and controlling the acid adding time to be about 13 min; after adding acid, raising the temperature of the positive electrode and the paste to 72 ℃, then cooling, wherein the peak temperature of the negative electrode and the paste is less than 65 ℃, and stirring for 10-15 min after adding acid;
s1.2, coating a plate: uniformly coating positive lead paste on the positive plate, and uniformly coating negative lead paste on the negative plate;
s1.3, curing and drying;
s1.4, shearing a plate by a roller;
the preparation of the separator comprises the following steps:
s2.1, water preparation: preparing pure water;
s2.2, weighing ingredients: weighing the components in proportion;
s2.3, pulping: opening a valve of a pulping machine, injecting deionized water, adding concentrated sulfuric acid, adjusting the pH value of pulping liquid to a specified value, and slowly pouring weighed ingredients into a pulping tank for stirring and mixing;
s2.4, size mixing: pumping the pulped ingredients into a large tank, opening a valve, adding deionized water to dilute the ingredients to a certain concentration, stirring the ingredients by using an electric stirrer while pumping, measuring and adjusting the pH value of the slurry to a specified value after stirring for a certain time, pumping the mixture into another large tank, and supplying the mixture to a production line while stirring;
s2.5, forming: opening a pulp inlet valve, feeding pulp from the bottom and overflowing the pulp onto a production line, driving the pulp through a polyester mesh belt, pumping and adjusting pulp water through a secondary vacuum pump, feeding the pulp into a rubber roller for rolling, and adjusting the thickness and the flatness of a partition plate through adjusting the pressure on two sides of a rolling shaft;
s2.6, drying: the glass fiber enters a drying box, the temperature in the box is automatically controlled, the glass fiber has the characteristics of high porosity and high water-based property, and the ration is 50-400 g/(m)2Mm), the thickness is 0.4-3 mm, the strength is low, and the drying temperature and the hot air speed are required to be adjusted, so that a good hot air effect is achieved;
s2.7, coiling and cutting: cutting the partition board with a head separating machine, rolling the partition board and a winding machine into a cylinder, and cutting the partition board with a cutting machine.
Silica gel (SiO2) and NaHCO32:1, and the silica gel is used as a porous material, so that local sulfuric acid solution can be stored, and the acid content of the polar plate is increased on the premise of not influencing the cycle life; after thermal decomposition of NaHCO3, the polar plate is raisedThe porosity and the effect of the two are superposed to achieve the purpose of increasing the acid content of the polar plate.
The thermoplastic polyester is added in the partition board, the PET molecular structure is highly symmetrical, and the partition board has excellent air and water resistance, oil and water resistance and other properties, and due to the excellent hydrophobic property, the partition board is ensured to always maintain 3-5% of oxygen channels on the premise of high acid content, the smooth proceeding of oxygen circulation in the charging process of the battery is ensured, and the water loss is reduced.
By adjusting the assembling pressure and thickness of the separator, the acid amount in the battery per ampere hour is ensured to be 3-10% more than that of the conventional AGM battery.
And (3) experimental comparison:
the experimental method is to adopt the lead plaster additive provided by the invention to carry out and plaster manufacture polar plates, the separator additive provided by the invention is used for manufacturing a test separator, the test polar plates and the test separator are utilized to assemble a test battery, a comparison battery is assembled in the same batch and process, and the test battery and the comparison battery adopt the same acidification process and formation process.
Dry weight/kg of battery Wet weight/kg of battery Weight gain/g Increase of acid amount
Test cell 21.46 26.98 5520 /
Comparative battery 21.46 27.57 6110 10％
The above cell was tested as follows:
(1) the fully charged battery is kept stand for 18h in an environment of-30 DEG C
(2) Storage battery with C3Current discharge of/3 to cell voltage 1.75V/cell
(3) When the temperature of the battery is recovered to the room temperature, the electricity is supplemented, the voltage is constant and 2.42V/cell, and the current is limited by 0.3C3Charging for 5h
(4) And (4) continuing the test for 1-3 times after power supply, and changing the test temperature to-40 ℃.
The detection results are as follows:
test temperature/. degree.C -30 -40
Test cell 2:14:23 2:14:56
Comparative battery 2:01:34 2:00:59
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (6)

1. The utility model provides an aerial working platform non-maintaining battery, includes polar plate, baffle, battery case and electrolyte, its characterized in that: the polar plate comprises the following components in percentage by mass: 75-85% of lead powder, 6-10% of water, 5-9% of sulfuric acid, 0.5-0.9% of an anode auxiliary material, 2-2.5% of a cathode auxiliary material and a paste coating plate;
the partition board comprises the following components in percentage by mass: SiO2265.40％、Al2O33％、CaO5.88％、MgO2.92％、Na2O16.11％、K2O0.69％、B2O35.31％、F21.02% and thermoplastic polyester 0.3%.
2. The aerial work platform maintenance-free battery of claim 1, wherein: the anode auxiliary material comprises: raw board powder 0.5%, carbon 0.2%, stannous sulfate 0.1%, antimony trioxide 0.15%, short fiber 0.07%, phosphoric acid 0.02%, silica gel 0.2% and NaHCO30.1％；
The negative electrode auxiliary material: 0.3% of lignin, 1.0% of barium sulfate, 0.3% of carbon black, 0.07% of short fiber, 0.2% of silica gel and NaHCO30.1％。
3. The aerial work platform maintenance-free battery of claim 2, wherein: the silica gel and NaHCO3In a ratio of 2: 1.
4. The method for preparing the maintenance-free battery of the aerial work platform according to claim 3, wherein the method comprises the following steps: the thickness of the partition plate is 0.7mm, and the assembly pressure of the partition plate is 40 kPa.
5. The aerial work platform maintenance-free battery and the preparation method thereof as claimed in claim 1, wherein the aerial work platform maintenance-free battery comprises: the method comprises the following steps:
s1, preparing a polar plate: mixing paste, coating a plate, curing, drying and roll cutting the plate;
s2, preparing a separator: preparing water, weighing and proportioning, pulping, mixing pulp, forming, drying, rolling, cutting and packaging;
s3, assembling the battery: the plate, separator, battery case and electrolyte are assembled.
6. The aerial work platform maintenance-free battery and the preparation method thereof as claimed in claim 5, wherein the aerial work platform maintenance-free battery comprises: the preparation of the polar plate comprises the following steps:
s1.1, mixing paste: adding lead powder and auxiliary materials into a paste mixer, stirring for 5min in a dry mode, then adding water, quickly adding water for less than or equal to 2min, stirring for 5min in a wet mode, then adding acid, slowly adding acid, and controlling the acid adding time to be about 13 min; after adding acid, raising the temperature of the positive electrode and the paste to 72 ℃, then cooling, wherein the peak temperature of the negative electrode and the paste is less than 65 ℃, and stirring for 10-15 min after adding acid;
s1.2, coating a plate: uniformly coating positive lead paste on the positive plate, and uniformly coating negative lead paste on the negative plate;
s1.3, curing and drying;
s1.4, shearing a plate by a roller;
the preparation of the separator comprises the following steps:
s2.1, water preparation: preparing pure water;
s2.2, weighing ingredients: weighing the components in proportion;
s2.3, pulping: opening a valve of a pulping machine, injecting deionized water, adding concentrated sulfuric acid, adjusting the pH value of pulping liquid to a specified value, and slowly pouring weighed ingredients into a pulping tank for stirring and mixing;
s2.4, size mixing: pumping the pulped ingredients into a large tank, opening a valve, adding deionized water to dilute the ingredients to a certain concentration, stirring the ingredients by using an electric stirrer while pumping, measuring and adjusting the pH value of the slurry to a specified value after stirring for a certain time, pumping the mixture into another large tank, and supplying the mixture to a production line while stirring;
s2.5, forming: opening a pulp inlet valve, feeding pulp from the bottom and overflowing the pulp onto a production line, driving the pulp through a polyester mesh belt, pumping and adjusting pulp water through a secondary vacuum pump, feeding the pulp into a rubber roller for rolling, and adjusting the thickness and the flatness of a partition plate through adjusting the pressure on two sides of a rolling shaft;
s2.6, drying: the glass fiber enters a drying box, the temperature in the box is automatically controlled, the glass fiber has the characteristics of high porosity and high water-based property, and the ration is 50-400 g/(m)2Mm), the thickness is 0.4-3 mm, the strength is low, and the drying temperature and the hot air speed are required to be adjusted, so that a good hot air effect is achieved;
s2.7, coiling and cutting: cutting the partition board with a head separating machine, rolling the partition board and a winding machine into a cylinder, and cutting the partition board with a cutting machine.
S2.8, packaging: after cutting, finishing, packaging with transparent plastic packaging paper, sealing, and placing into a packaging box.
CN202210138288.3A 2022-02-15 2022-02-15 Maintenance-free battery for aerial work platform and preparation method thereof Pending CN114614005A (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478829B1 (en) * 2000-02-08 2002-11-12 Kvg Technologies, Inc. Method for producing a battery with separators containing fusible binders
CN104241708A (en) * 2014-09-11 2014-12-24 长兴超越动力科技有限公司 Lead-acid storage battery with high energy storage capacity and long service life
CN105140573A (en) * 2015-09-28 2015-12-09 骆驼集团蓄电池研究院有限公司 Maintenance-free lead-acid storage battery and preparation method thereof
CN106876666A (en) * 2015-12-11 2017-06-20 杨春晓 lead-acid battery electrode active material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478829B1 (en) * 2000-02-08 2002-11-12 Kvg Technologies, Inc. Method for producing a battery with separators containing fusible binders
CN104241708A (en) * 2014-09-11 2014-12-24 长兴超越动力科技有限公司 Lead-acid storage battery with high energy storage capacity and long service life
CN105140573A (en) * 2015-09-28 2015-12-09 骆驼集团蓄电池研究院有限公司 Maintenance-free lead-acid storage battery and preparation method thereof
CN106876666A (en) * 2015-12-11 2017-06-20 杨春晓 lead-acid battery electrode active material

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