CN104241658B - A kind of manufacture method of lead-acid accumulator collector - Google Patents

A kind of manufacture method of lead-acid accumulator collector Download PDF

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Publication number
CN104241658B
CN104241658B CN201410489488.9A CN201410489488A CN104241658B CN 104241658 B CN104241658 B CN 104241658B CN 201410489488 A CN201410489488 A CN 201410489488A CN 104241658 B CN104241658 B CN 104241658B
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China
Prior art keywords
lead
collector
low
density
containing alloy
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CN201410489488.9A
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CN104241658A (en
Inventor
刘桃松
党志敏
黄德金
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Zhejiang Narada Power Source Co Ltd
Hangzhou Nandu Power Technology Co Ltd
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Zhejiang Narada Power Source Co Ltd
Hangzhou Nandu Power Technology Co Ltd
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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
    • H01M4/64—Carriers or collectors
    • H01M4/82—Multi-step processes for manufacturing carriers 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/666—Composites in the form of mixed materials
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/68—Selection of materials for use in lead-acid accumulators
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

The invention provides a kind of manufacture method of lead-acid accumulator collector, it is particle by lead or lead-containing alloy pretreatment, and it is mixed with low-density admixture particle, fortifying fibre; The lead mixing or lead-containing alloy, low-density admixture particle, fortifying fibre are warming up to higher than lead and lead-containing alloy fusing point, lower than the temperature range of low-density admixture particle and fortifying fibre fusing point, are squeezed into described mould and carry out processing and forming and become lead-acid accumulator collector. By the collector of technical scheme manufacturing of the present invention, the minimum 3g/cm3 of reaching of its density, weight can reduce 70% at most, and surface area is the highest can improve 40% than the collector of traditional handicraft, and collector intensity improves 200%; The collector of manufacture of the present invention can be widely used in lead-acid battery; Especially be used on the fast start and stop battery of high-energy-density, high power, charging.

Description

A kind of manufacture method of lead-acid accumulator collector
Technical field
The present invention relates to a kind of manufacture method of lead-acid accumulator collector, be particularly useful for the manufacturing of ultra-thin collector.
Background technology
Traditional lead-acid accumulator collector adopts the production technology of gravity-assist pouring. Because lead pig is put into heat fused in market pot by this technological requirement, through drawing liquid equipment, liquid lead is poured in mould, automatically flow into each gap of mould by the lead melting, become fluid after cooling.
There are a lot of drawbacks in traditional handicraft, and 1: need to consume a large amount of electric energy as needs use a large amount of electric energy heating market pots, heating drawing liquid equipment; 2: because plumbous liquid can cooling meeting in mould makes the mobility variation of plumbous liquid, cannot flow in thinner narrower mould, therefore the design of the rib of traditional collector is thicker, and weight is large, specific area is little. With contacting apart from large of lead plaster, charging is slow, and high-rate performance is poor, and lead plaster utilization rate is low; 3: trickle to each space of mould by liquid plumbous mobility and plumbous Action of Gravity Field because collector flowing in mould is complete, easily occur disconnected muscle, hole, blemish, the defect such as closely knit not; 4: the collector mould upper end of traditional handicraft can have more part lead, after the demoulding, need to cut unnecessary part, then return in market pot, increase processing step, waste electric energy. 5: the lead dust lead fume contaminated environment that the production process of traditional handicraft can be a large amount of, need to increase environmental protection equipment and drop into. The a large amount of radiant heat energies of market pot, poor working environment.
Summary of the invention
The object of this invention is to provide a kind of manufacture method of lead-acid accumulator collector, to solve the problem existing in background technology. For this reason, the present invention is by the following technical solutions:
A manufacture method for lead-acid accumulator collector, is characterized in that the material composition of described collector comprises outside lead or lead-containing alloy, also comprises: low-density admixture particle, fortifying fibre;
Density ratio lead or the lead-containing alloy of described low-density admixture particle are low, and fusing point is higher than the fusing point of lead or lead-containing alloy;
The fusing point of described fortifying fibre is higher than the fusing point of lead or lead-containing alloy;
Be particle by lead or lead-containing alloy pretreatment, it is mixed with low-density admixture particle, fortifying fibre;
The mould of collector extrusion modling is provided, the lead mixing or lead-containing alloy, low-density admixture particle, fortifying fibre are warming up to higher than lead and lead-containing alloy fusing point, lower than the temperature range of low-density admixture particle and fortifying fibre fusing point, are squeezed into described mould and carry out processing and forming and become lead-acid accumulator collector.
Further, described low-density admixture particle is through chemical plating stannum, silver or golden pretreatment. Described fortifying fibre is through chemical plating stannum, silver or golden pretreatment. Chemical deposit can effectively increase the compatibility of low-density admixture particle, fortifying fibre and lead and alloy thereof, prevents interface, prevents that collection liquid surface from exposing low-density admixture particle, fortifying fibre, improves collection liquid surface electric conductivity.
The pretreated particle of lead or lead-containing alloy is generally bead or the cylinder of diameter 5～20mm left and right, and cylindrical height is also in 5～20mm left and right.
Described low-density admixture particle is hollow glass microballoon, the particle diameter of hollow glass microballoon is generally micron order, best between 10～150 microns, can either play the weight that replaces lead material to alleviate collector, make little, the lightweight effect of collector density, reduce again the possibility exposing, its density is between 0.08～0.5g/cm3.
Described fortifying fibre is glass fibre, and its diameter is generally 10～100 microns.
In collector, the main component that plays electric action that lead or metal are collector, its contact, support active material. In the present invention, fortifying fibre makes up low-density admixture particle on the one hand, strengthens the intensity of collector, prevents bending. Fortifying fibre can improve the technological forming of material on the other hand, particle lead or metal can mix low-density admixture particle around it and fortifying fibre rapidly after fusing, fortifying fibre and metal bath combination, make material be applicable to very much adopting the former of similar injection-moulding device to carry out extrusion modling, can flow in thinner narrower model, form the muscle meticulousr, intensive, intensity is stronger, increasing specific surface area, makes battery have higher specific energy, specific power, charging rate, active material utilization; And owing to adopting the extrusion modling of similar injection moulding, can eliminate the generation of unnecessary leftover pieces, exempt all drawbacks such as energy consumption, smoke contamination that therefore produce.
Be the feed mechanism with anti-return and heating function to the equipment of described mould feeding, it can be by heating material to described temperature range, can adopt feeding screw, it has the backflow functionality of preventing, and on feeding screw, heater can be set easily, heating material is arrived to described temperature range.
To sum up; owing to adopting technical scheme of the present invention; the collector of this method manufacture is compared with adopting the collector of traditional handicraft manufacture; can utilize the method for similar injection moulding to manufacture collector; the collector of manufacturing has thin thickness compared with the collector of traditional handicraft; complex-shaped; intensity is high; the feature that weight is low, makes battery have higher specific energy, specific power, charging rate, active material utilization, and the present invention does not produce leftover pieces in manufacture collector process; without secondary cut deburring; without the pollution of lead dust lead fume, save electric energy, protection of the environment.
By the collector of technical scheme manufacturing of the present invention, the minimum 3g/cm3 of reaching of its density, weight can reduce 70% at most, and surface area is the highest can improve 40% than the collector of traditional handicraft, and collector intensity improves 200%. The collector of manufacture of the present invention can be widely used in lead-acid battery. Especially be used on the fast start and stop battery of high-energy-density, high power, charging.
Brief description of the drawings
Fig. 1 is process chart of the present invention.
Fig. 2 is the schematic diagram of a kind of collector of manufacturing of the present invention.
Fig. 3 is the partial enlarged drawing of Fig. 2, shows the secondary fine structure of the collector rib of manufacturing of the present invention.
Detailed description of the invention
The manufacture method of lead-acid accumulator collector provided by the present invention, the material composition of described collector comprises outside lead or lead-containing alloy, also comprises: low-density admixture particle, fortifying fibre;
Described low-density admixture particle adopts at particle diameter the double glazing between 10～150 microns, through chemical plating stannum, silver or golden pretreatment microballoon; Described fortifying fibre adopts diameter at the glass fibre of 10～100 microns, also passes through chemical plating stannum, silver or golden pretreatment;
Be bead or the cylinder of diameter 5～20mm left and right by lead or lead-containing alloy pretreatment, cylindrical height also, in 5～20mm left and right, mixes it with low-density admixture particle, fortifying fibre;
The mould of collector extrusion modling is provided, the lead mixing or lead-containing alloy, low-density admixture particle, fortifying fibre are warming up to higher than lead and lead-containing alloy fusing point, lower than the temperature range of low-density admixture particle and fortifying fibre fusing point, are squeezed into described mould and carry out processing and forming and become lead-acid accumulator collector.
Use feeding screw by lead or lead-containing alloy, hollow glass microballoon and the fusing of glass fibre Hybrid Heating, the in the situation that of certain pressure, raw material are squeezed into mould. Feeding screw technical parameter enters table 1.
Technological parameter is in table 1:
Below in conjunction with embodiment, the present invention is described in further detail.
The formula Design of collector embodiment 1: lead, hollow glass microballoon and glass fibre volume respectively account for 33.3% ratio, method step and aforementioned identical.
The collector of manufacturing of the present invention is as shown in Figure 2,3: in collector one-level square grid, extended rib, rhombus, circle or polygonal secondary geometry to centre. These secondary geometry ribs are obviously narrower than collector grid rib. Increased active material contact area, shortened electric current distance.
The collector parameter comparison of the embodiment of the present invention is as table 2.
Table 2: the collector parameter comparison of same frame size
Note: higher density formula volume ratio: lead and alloy 90%; Hollow glass microballoon 5%; Glass fibre 5%.
Compared with low-density formula volume ratio: lead and alloy 20%; Hollow glass microballoon 40%; Glass fibre 40%.
From table 2 parameter, the active material weight of collector of the present invention is basic the same with traditional collector, but the γ value of embodiment 1 collector is less than 28% of traditional collector; α value is less than traditional collector 40%.
The battery and the traditional collector battery performance parameter that use collector of the present invention to make contrast as following table 3. (length and width, the thick size of collector are the same)
Table 3:2 kind collector battery parameter comparison
Capacity Charging interval Power Weight Specific energy Specific power
The battery of tradition collector 100 AH 10 H 320 W 5.3Kg 37.7Wh/Kg 60.4W/Kg
The battery that uses embodiment 1 to make 110 AH 7 H 385 W 4.5Kg 48.8Wh/Kg 85.6W/Kg
Adopt the battery of collector of the present invention under the apparent size condition the same with conventional batteries, collector battery weight of the present invention reduces 15%, the charging interval shortens 30%, capacity improves 10%, power improves 20%, specific energy improves 29%, specific power raising 42%.

Claims (4)

1. a manufacture method for lead-acid accumulator collector, is characterized in that the material composition of described collector comprises outside lead or lead-containing alloy, also comprises: low-density admixture particle, fortifying fibre;
Density ratio lead or the lead-containing alloy of described low-density admixture particle are low, and fusing point is higher than the fusing point of lead or lead-containing alloy;
The fusing point of described fortifying fibre is higher than the fusing point of lead or lead-containing alloy;
Be particle by lead or lead-containing alloy pretreatment, it is mixed with low-density admixture particle, fortifying fibre;
The mould of collector extrusion modling is provided, the lead mixing or lead-containing alloy, low-density admixture particle, fortifying fibre are warming up to higher than lead and lead-containing alloy fusing point, lower than the temperature range of low-density admixture particle and fortifying fibre fusing point, are squeezed into described mould and carry out processing and forming and become lead-acid accumulator collector;
Described low-density admixture particle is hollow glass microballoon;
Described fortifying fibre is glass fibre.
2. the manufacture method of a kind of lead-acid accumulator collector as claimed in claim 1, is characterized in that described low-density admixture particle is through chemical plating stannum, silver or golden pretreatment.
3. the manufacture method of a kind of lead-acid accumulator collector as claimed in claim 1, is characterized in that described fortifying fibre is through chemical plating stannum, silver or golden pretreatment.
4. the manufacture method of a kind of lead-acid accumulator collector as claimed in claim 1, is characterized in that, is the feed mechanism with anti-return and heating function to the equipment of described mould feeding, and it can be by heating material to described temperature range.
CN201410489488.9A 2014-09-23 2014-09-23 A kind of manufacture method of lead-acid accumulator collector Active CN104241658B (en)

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Publication number Priority date Publication date Assignee Title
CN111816847B (en) * 2020-07-08 2022-04-26 肇庆理士电源技术有限公司 Lead paste for preparing positive plate and preparation method thereof
CN113675379B (en) * 2020-09-28 2022-11-15 浙江南都电源动力股份有限公司 Method for preparing bipolar electrode plate, electrode plate and mould
CN114384108A (en) * 2022-01-10 2022-04-22 浙江南都电源动力股份有限公司 Method for testing aluminum layer extensibility of soft package lithium ion battery after aluminum plastic film forming

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CN102056861A (en) * 2008-06-09 2011-05-11 原子能和代替能源委员会 Electrode for lead-acid battery and method for producing such an electrode
CN102751507A (en) * 2012-07-10 2012-10-24 深圳市佰特瑞储能***有限公司 Manufacturing method of grid of lead-acid storage battery
CN103515579A (en) * 2012-06-21 2014-01-15 中国人民解放军63971部队 Negative plate of lead storage battery
CN103560252A (en) * 2013-10-17 2014-02-05 福建瑞达精工股份有限公司 Flexible lead-acid battery core easy to recycle, and preparation method of flexible lead-acid battery core

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Publication number Priority date Publication date Assignee Title
JPS59127380A (en) * 1983-01-10 1984-07-23 Matsushita Electric Ind Co Ltd Sealed lead-acid battery
JP4529707B2 (en) * 2005-01-28 2010-08-25 新神戸電機株式会社 Lead acid battery
WO2006092060A1 (en) * 2005-03-04 2006-09-08 Vizon Scitec Inc. Method to improve the performance of lead acid battery

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN102056861A (en) * 2008-06-09 2011-05-11 原子能和代替能源委员会 Electrode for lead-acid battery and method for producing such an electrode
CN103515579A (en) * 2012-06-21 2014-01-15 中国人民解放军63971部队 Negative plate of lead storage battery
CN102751507A (en) * 2012-07-10 2012-10-24 深圳市佰特瑞储能***有限公司 Manufacturing method of grid of lead-acid storage battery
CN103560252A (en) * 2013-10-17 2014-02-05 福建瑞达精工股份有限公司 Flexible lead-acid battery core easy to recycle, and preparation method of flexible lead-acid battery core

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