CN105390640A - PE (polyethylene) separator of lead-acid storage battery and manufacturing method for PE separator - Google Patents
PE (polyethylene) separator of lead-acid storage battery and manufacturing method for PE separator Download PDFInfo
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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
- 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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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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
- 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
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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
- 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
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
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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
- 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
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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
- 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
- H01M50/431—Inorganic material
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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
- 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
- H01M50/44—Fibrous material
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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
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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
- 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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Abstract
The invention discloses a PE (polyethylene) separator of a lead-acid storage battery and a manufacturing method for the PE separator. The PE separator is manufactured from 50-80 parts of glass fiber masterbatch, 260-300 parts of silicon dioxide, 80-110 parts of ultra-high-molecular-weight PE, 490-540 parts of raw material oil, 0.3-0.8 parts of an antioxidant and 10-16 parts of carbon black, wherein the glass fiber masterbatch is prepared from 0.9-9.1 parts of glass fiber cotton, 5.9-7.1 parts of extra-high-molecular-weight PE, 34-42 parts of silicon dioxide, 0.6-1.5 parts of carbon black and 43-55 parts of raw material oil. The glass fiber masterbatch is prepared by mixing and extrusion pelletization of prepared raw materials; and the PE separator is manufactured by mixing, extrusion formation, oil pumping and steam stripping, coating agent drying, hole inspection and winding as well as subsequent machining of the prepared raw materials. The PE separator is high in porosity and low in resistance, has good puncture resistance, and is relatively good in oxidation resistance; and the manufactured storage battery is good in starting performance and strong in big current discharge capability.
Description
Technical field
The invention belongs to battery technology field, relate to a kind of PE dividing plate for lead acid accumulator and preparation method thereof.
Background technology
Dividing plate is important composition parts in storage battery, and between the positive/negative plate that it is placed in storage battery, the quality of dividing plate directly affects discharge capacity and charge and discharge cycles useful life of storage battery.Dividing plate has following functions in storage battery, and one is prevent both positive and negative polarity from contacting with each other and internal short-circuit of battery occurs; Two is to have certain intensity, prevents pole plate to be out of shape, bending and active material comes off; Three is the electrolyte that diaphragm internal stores necessary amount, to ensure higher conductivity and the requirement of cell reaction.In addition, separator material also will be aspired for stability, only containing a small amount of harmful ion or not containing harmful ion.According to above requirement, high-quality dividing plate will have following characteristics: 1. separator material itself is insulator, but the dividing plate made will have loose porous structure; 2. the chemical stability of dividing plate will be got well, sulfuric acid corrosion resistant, resistance to oxidation and aging; 3. dividing plate will have mechanical strength and toughness significantly, is convenient to produce install; 4. dividing plate can not leach the impurity harmful to battery in sulfuric acid; 5. dividing plate resistance is in the electrolytic solution little; 6. dividing plate has broader temperature range.
Current Application comparison widely battery separator has: microporous rubber separator, sintering polyvinylchloride dividing plate, fusion-jetting polypropylene PP dividing plate, microporous polyethylene PE dividing plate and glass fibre separator etc.In these dividing plates, PE dividing plate is generalized to rapidly in the use of storage battery with its excellent performance.But, along with the development of automobile automatic start-stop system, more and more higher to the requirement of PE dividing plate.How to reduce the resistance of PE dividing plate further, increase its porosity, the starting performance strengthening dividing plate is problem anxious to be resolved.
Summary of the invention
Object of the present invention solves the above-mentioned problems in the prior art exactly, there is provided on a kind of basis keeping the original performance of PE battery separator, significantly reduce the resistance of PE battery separator, increase lead acid accumulator PE dividing plate and the preparation method of PE battery separator porosity.
For solving the problem, technical solution of the present invention is: a kind of lead acid accumulator PE dividing plate, it is made up of following raw material: by weight calculating, glass fibre masterbatch 50 ~ 80, silicon dioxide 260 ~ 300, ultra-high molecular weight polyethylene 80 ~ 110, feedstock oil 490 ~ 540, antioxidant 0.3 ~ 0.8 and carbon black 10 ~ 16;
Described glass fibre masterbatch is made up of following raw material: by weight calculating, glass fibre cotton 0.9 ~ 9.1, extra high molecular weight northylen 5.9 ~ 7.1, silicon dioxide 34 ~ 42, carbon black 0.6 ~ 1.5 and feedstock oil 43 ~ 55;
Described feedstock oil is a kind of mixture, and its composition is following three kinds of materials:
Saturated alkane compound, it comprises alkane and cycloalkane, adds up to 65% ~ 75%; Aromatic compound: 25% ~ 35%; Polar compound: 0 ~ 3%;
Described cyclanes compound is a ring cycloalkane, bicyclic ring alkane, tricyclic naphthenes hydrocarbon, Fourth Ring cycloalkane, five rings cycloalkane and six ring cyclanes compounds, and wherein, one ~ tricyclic naphthenes hydrocarbon is main component;
Described aromatic compound is alkyl benzene, cycloalkyl benzene, bicyclic alkyl benzene, total mononuclear aromatics, total double ring arene, total thrcylic aromatic hydrocarbon, total four PAHs, total five rings aromatic hydrocarbons and thiophene compound, with total mononuclear aromatics for Main Ingredients and Appearance;
Described polar compound is the material of chain hydrocarbon, cycloalkane and aromatic hydrocarbons containing N, P, S, O.
Further preferably, described antioxidant is antioxidant 300.
Further preferably, described ultra-high molecular weight polyethylene is the polyethylene of molecular weight more than 3,000,000, the molecular weight of described extra high molecular weight northylen is the polyethylene of 50-100 ten thousand, and described silicon dioxide average grain diameter is 19 ~ 25 μm, and described glass fibre cotton diameter is 1.5 ~ 1.9 μm.
The preparation method of lead acid accumulator PE dividing plate described above, it comprises the following steps:
The preparation of A, glass fibre masterbatch: (1) batch mixing: first the glass fibre cotton of the silicon dioxide of described amount and described amount is added mixing 2 ~ 10min in batch mixer, the feedstock oil adding described amount again continues mixing 3 ~ 8min, finally the extra high molecular weight northylen of described amount and the carbon black of described amount are added, continue stirring 5 ~ 10min until mixing of materials is even; (2) extruding pelletization: the material mixed is transported in double screw extruder by feeder, extrudes slivering, then by material traction to granulation in stock-cutter;
The preparation of B, PE dividing plate: (1) batch mixing: the glass fibre masterbatch, silicon dioxide, ultra-high molecular weight polyethylene, carbon black and the antioxidant that prepare are added in batch mixer according to described amount and mixes 20 ~ 30min, afterwards the feedstock oil of described amount is added in batch mixer and continue mixing 80 ~ 100min, until mixing of materials is even; (2) extrusion molding: the raw material mixed is extruded by double screw extruder, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, making feedstock oil content in dividing plate reach 60 ~ 70%; (3) oil pumping stripping: the dividing plate after shaping is carried out oil pumping process, and in process rear bulkhead, feedstock oil content is 10 ~ 20%, and separator porosity is 60 ± 5%; (4) paint is dry: by the baffle surface coating anion surfactant after oil pumping, and enter oven drying, make dividing plate water content 2 ~ 4%; (5) hole winding is examined: the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules; (6) following process: PE dividing plate is carried out cutting making product.
Because the present invention with the addition of glass fibre masterbatch in conventional P E dividing plate, the PE dividing plate made reduces resistance, adds porosity.(1) in storage battery, electric current flows to negative pole from positive pole to be carried out through dividing plate by electrolyte ion migration and ion diffuse, spacers block electric current or ion are by being referred to as the resistance of dividing plate, resistance is the key factor weighing dividing plate performance quality, dividing plate resistance is lower, and accumulator drive performance is better.(2) to ensure the concentration range that pole plate has sufficient electrolyte content and is applicable in electrochemical reaction during the electrolyte of lead acid accumulator reasonably should be distributed between both positive and negative polarity pole plate dividing plate.This on make full use of active material, improve electrical property impact very large.To battery, want to obtain best electrical property, do not affecting under mechanical strength, the volume of separator material should be made to reduce to may be little, makes dividing plate have percent opening high as far as possible.(3) glass fibre is in dividing plate, equally serves as the skeleton of dividing plate with silicon dioxide.At PE diaphragm internal, mutually run through between glass fibre, build each other, superimposed layer by layer, form micropore.Adding of fiber, add aperture and the porosity of dividing plate, reduce dividing plate resistance, enhance the starting performance of battery.
In a word, PE dividing plate porous of the present invention, low resistance, have large puncture, and antioxygenic property is better, and the storage battery starting performance made is good, and large current discharging capability is strong.Compared with conventional PE dividing plate, the resistance of dividing plate obviously reduces, and porosity also significantly increases.The resistance of PE dividing plate of the present invention and conventional separator and porosity contrast sees Fig. 1 and Fig. 2.The resistance of PE dividing plate of the present invention is 32 ~ 38, and the resistance of conventional separator is 47.5 ~ 57, and resistance reduces a lot; The porosity of PE dividing plate of the present invention is 60 ~ 61.5, and the porosity of conventional separator is 56.4 ~ 59.2, and porosity increases a lot.
Accompanying drawing explanation
Fig. 1 is PE dividing plate 1# of the present invention and conventional separator 2# resistance comparison diagram;
Fig. 2 is PE dividing plate 1# of the present invention and conventional separator 2# porosity comparison diagram.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1: a kind of lead acid accumulator PE dividing plate, it is made up of following raw material: by weight calculating, glass fibre masterbatch 80, silicon dioxide 300, ultra-high molecular weight polyethylene 110, feedstock oil 540, antioxidant 0.8 and carbon black 16.Described glass fibre masterbatch is made up of following raw material: by weight calculating, the glass fibre cotton 9.1 of 1.5 ~ 1.9 μm, the silicon dioxide 42 that extra high molecular weight northylen is 7.1,19 ~ 25 μm, carbon black 1.5 and feedstock oil 55.Described feedstock oil is a kind of mixture, and its composition is following three kinds of materials: saturated alkane compound, and it comprises alkane and cycloalkane, adds up to 65% ~ 75%; Aromatic compound: 25% ~ 35%; Polar compound: 0 ~ 3%; Described cyclanes compound is a ring cycloalkane, bicyclic ring alkane, tricyclic naphthenes hydrocarbon, Fourth Ring cycloalkane, five rings cycloalkane and six ring cyclanes compounds, and wherein, one ~ tricyclic naphthenes hydrocarbon is main component; Described aromatic compound is alkyl benzene, cycloalkyl benzene, bicyclic alkyl benzene, total mononuclear aromatics, total double ring arene, total thrcylic aromatic hydrocarbon, total four PAHs, total five rings aromatic hydrocarbons and thiophene compound, with total mononuclear aromatics for Main Ingredients and Appearance; Described polar compound is the material of chain hydrocarbon, cycloalkane and aromatic hydrocarbons containing N, P, S, O.Described ultra-high molecular weight polyethylene is the polyethylene of molecular weight more than 3,000,000, and the molecular weight of described extra high molecular weight northylen is the polyethylene of 50-100 ten thousand.
Its preparation method comprises the following steps:
(1) preparation of glass fibre masterbatch: the glass fibre cotton of 1.5 ~ 1.9 of described amount μm, the silicon dioxide of 19 ~ 25 μm are added in batch mixer and mixes 10min, the feedstock oil adding described amount afterwards continues mixing 8min, it is made to mix completely, finally the extra high molecular weight northylen of described amount and carbon black are added in mixed material, continue to stir 10min until mixing of materials is even.Mixed raw material is transported in extruder by feeder, extrudes slivering, then material traction is obtained glass fibre masterbatch to granulation in stock-cutter.
(2) preparation of PE dividing plate: prepared glass fibre masterbatch, silicon dioxide, ultra-high molecular weight polyethylene, carbon black, antioxidant are added premix 30min in batch mixer according to described amount, slowly adds continuation stirring 100min afterwards and makes mixing of materials even by the feedstock oil of described amount.The raw material mixed is delivered in double screw extruder by feeder and extrudes, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, making shaped partition Raw oil content reach 70%.Carry out oil pumping process to shaped partition afterwards, in process rear bulkhead, feedstock oil content is 10%, and product porosity is 60 ± 5%; Afterwards at baffle surface coating anion surfactant, through oven drying, make dividing plate water content be 2%, the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules, cut cut-parts by customer requirement.The dividing plate resistance made is 32m Ω cm
2, porosity is 61.5%.
Embodiment 2: a kind of lead acid accumulator PE dividing plate, it is made up of following raw material: by weight calculating, glass fibre masterbatch 50, silicon dioxide 260, ultra-high molecular weight polyethylene 80, feedstock oil 490, antioxidant 0.3 and carbon black 10.Described glass fibre masterbatch is made up of following raw material: by weight calculating, the glass fibre cotton 0.9 of 1.5 ~ 1.9 μm, the silicon dioxide 34 that extra high molecular weight northylen is 7.1,19 ~ 25 μm, carbon black 0.6 and feedstock oil 43.Described feedstock oil, ultra-high molecular weight polyethylene and extra high molecular weight northylen are with embodiment 1.
Its preparation method comprises the following steps:
(1) preparation of glass fibre masterbatch: the glass fibre cotton of 1.5 ~ 1.9 of described amount μm, the silicon dioxide of 19 ~ 25 μm are added in batch mixer and mixes 2min, the feedstock oil adding described amount afterwards continues mixing 3min, it is made to mix completely, finally the extra high molecular weight northylen of described amount and carbon black are added in mixed material, continue to stir 5min until mixing of materials is even.Mixed raw material is transported in extruder by feeder, extrudes slivering, then material traction is obtained glass fibre masterbatch to granulation in stock-cutter.
(2) preparation of PE dividing plate: prepared glass fibre masterbatch, silicon dioxide, ultra-high molecular weight polyethylene, carbon black, antioxidant are added premix 20min in batch mixer according to described amount, slowly adds continuation stirring 80min afterwards and makes mixing of materials even by the feedstock oil of described amount.The raw material mixed is delivered in double screw extruder by feeder and extrudes, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, shaped partition Raw oil content is made to reach 60%, carry out oil pumping process to dividing plate afterwards, in process rear bulkhead, oil content is 20%, and product porosity is 60 ± 5%; Afterwards at baffle surface coating anion surfactant, through oven drying, dividing plate water content is 4%, the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules, cuts cut-parts by customer requirement.The dividing plate resistance made is 38m Ω cm
2, porosity is 60%.
Embodiment 3: a kind of lead acid accumulator PE dividing plate, it is made up of following raw material: by weight calculating, glass fibre masterbatch 65, silicon dioxide 280, ultra-high molecular weight polyethylene 95, feedstock oil 515, antioxidant 0.55 and carbon black 13.Described glass fibre masterbatch is made up of following raw material: by weight calculating, the glass fibre cotton 4.5 of 1.5 ~ 1.9 μm, the silicon dioxide 38 that extra high molecular weight northylen is 6.5,19 ~ 25 μm, carbon black 1.05 and feedstock oil 49.Described feedstock oil, ultra-high molecular weight polyethylene and extra high molecular weight northylen are with embodiment 1.
Its preparation method comprises the following steps:
(1) preparation of glass fibre masterbatch: the glass fibre cotton of 1.5 ~ 1.9 of described amount μm, the silicon dioxide of 19 ~ 25 μm are added in batch mixer and mixes 6min, the feedstock oil adding described amount afterwards continues mixing 5min, it is made to mix completely, finally the extra high molecular weight northylen of described amount and carbon black are added in mixed material, continue to stir 8min until mixing of materials is even.Mixed raw material is transported in extruder by feeder, extrudes slivering, then material traction is obtained glass fibre masterbatch to granulation in stock-cutter.
(2) preparation of PE dividing plate: prepared glass fibre masterbatch, silicon dioxide, ultra-high molecular weight polyethylene, carbon black and antioxidant are added premix 25min in batch mixer according to described amount, slowly adds continuation stirring 90min afterwards and makes mixing of materials even by the feedstock oil of described amount.The raw material mixed is delivered in double screw extruder by feeder and extrudes, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, shaped partition Raw oil content is made to reach 65%, carry out oil pumping process to dividing plate afterwards, in process rear bulkhead, oil content is 15%, and product porosity is 60 ± 5%; Afterwards at baffle surface coating anion surfactant, through oven drying, dividing plate water content is 3%, the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules, cuts cut-parts by customer requirement.The dividing plate resistance made is 35m Ω cm
2, porosity is 60.75%.
Embodiment 4: a kind of lead acid accumulator PE dividing plate, it is made up of following raw material: by weight calculating, glass fibre masterbatch 58, silicon dioxide 270, ultra-high molecular weight polyethylene 88, feedstock oil 510, antioxidant 0.43 and carbon black 11.5.Described glass fibre masterbatch is made up of following raw material: by weight calculating, the glass fibre cotton 2.7 of 1.5 ~ 1.9 μm, the silicon dioxide 36 that extra high molecular weight northylen is 6.2,19 ~ 25 μm, carbon black 0.83 and feedstock oil 46.Described feedstock oil, ultra-high molecular weight polyethylene and extra high molecular weight northylen are with embodiment 1.
Its preparation method comprises the following steps:
(1) preparation of glass fibre masterbatch: the glass fibre cotton of 1.5 ~ 1.9 of described amount μm, the silicon dioxide of 19 ~ 25 μm are added in batch mixer and mixes 54min, the feedstock oil adding described amount afterwards continues mixing 4min, it is made to mix completely, finally the extra high molecular weight northylen of described amount and carbon black are added in mixed material, continue to stir 7min until mixing of materials is even.Mixed raw material is transported in extruder by feeder, extrudes slivering, then material traction is obtained glass fibre masterbatch to granulation in stock-cutter.
(2) preparation of PE dividing plate: prepared glass fibre masterbatch 58, silicon dioxide 270, ultra-high molecular weight polyethylene 88, carbon black 11.5, antioxidant 0.43 are added premix 23min in batch mixer according to described amount, slowly adds continuation stirring 85min afterwards and makes mixing of materials even by the feedstock oil of described amount.The raw material mixed is delivered in double screw extruder by feeder and extrudes, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, shaped partition Raw oil content is made to reach 62.5%, carry out oil pumping process to dividing plate afterwards, in process rear bulkhead, oil content is 17.5%, and product porosity is 60 ± 5%; Afterwards at baffle surface coating anion surfactant, through oven drying, dividing plate water content is 3.5%, the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules, cuts cut-parts by customer requirement.The dividing plate resistance made is 36.5m Ω cm
2, porosity is 60.38%.
Embodiment 5: a kind of lead acid accumulator PE dividing plate, it is made up of following raw material: by weight calculating, glass fibre masterbatch 65, silicon dioxide 290, ultra-high molecular weight polyethylene 102.5, feedstock oil 528, antioxidant 0.68 and carbon black 14.5.Described glass fibre masterbatch is made up of following raw material: by weight calculating, the glass fibre cotton 6.8 of 1.5 ~ 1.9 μm, the silicon dioxide 40 that extra high molecular weight northylen is 6.8,19 ~ 25 μm, carbon black 1.28 and feedstock oil 52.Described feedstock oil, ultra-high molecular weight polyethylene and extra high molecular weight northylen are with embodiment 1.
Its preparation method comprises the following steps:
(1) preparation of glass fibre masterbatch: 1.5 ~ 1.9 of described amount μm of glass fibre cottons 6.8 and 19 ~ 25 μm of silicon dioxide 40 are added in batch mixer and mixes 8min, the feedstock oil adding described amount afterwards continues mixing 7min, it is made to mix completely, finally the extra high molecular weight northylen of described amount and carbon black are added in mixed material, continue to stir 9min until mixing of materials is even.Mixed raw material is transported in extruder by feeder, extrudes slivering, then material traction is obtained glass fibre masterbatch to granulation in stock-cutter.
(2) preparation of PE dividing plate: prepared glass fibre masterbatch, silicon dioxide, ultra-high molecular weight polyethylene, carbon black, antioxidant are added premix 28min in batch mixer according to described amount, slowly adds continuation stirring 95min afterwards and makes mixing of materials even by the feedstock oil of described amount.The raw material mixed is delivered in double screw extruder by feeder and extrudes, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, shaped partition Raw oil content is made to reach 67.5%, carry out oil pumping process to dividing plate afterwards, in process rear bulkhead, oil content is 12.5%, and product porosity is 60 ± 5%; Afterwards at baffle surface coating anion surfactant, through oven drying, dividing plate water content is 2.5%, the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules, cuts cut-parts by customer requirement.The dividing plate resistance made is 33.5m Ω cm
2, porosity is 61.13%.
Claims (4)
1. a lead acid accumulator PE dividing plate, is characterized in that: it is made up of following raw material: by weight calculating, glass fibre masterbatch 50 ~ 80, silicon dioxide 260 ~ 300, ultra-high molecular weight polyethylene 80 ~ 110, feedstock oil 490 ~ 540, antioxidant 0.3 ~ 0.8 and carbon black 10 ~ 16;
Described glass fibre masterbatch is made up of following raw material: by weight calculating, glass fibre cotton 0.9 ~ 9.1, extra high molecular weight northylen 5.9 ~ 7.1, silicon dioxide 34 ~ 42, carbon black 0.6 ~ 1.5 and feedstock oil 43 ~ 55;
Described feedstock oil is a kind of mixture, and its composition is following three kinds of materials:
Saturated alkane compound, it comprises alkane and cycloalkane, adds up to 65% ~ 75%, aromatic compound: 25% ~ 35% and polar compound: 0 ~ 3%;
Described cyclanes compound is a ring cycloalkane, bicyclic ring alkane, tricyclic naphthenes hydrocarbon, Fourth Ring cycloalkane, five rings cycloalkane and six ring cyclanes compounds;
Described aromatic compound is alkyl benzene, cycloalkyl benzene, bicyclic alkyl benzene, total mononuclear aromatics, total double ring arene, total thrcylic aromatic hydrocarbon, total four PAHs, total five rings aromatic hydrocarbons and thiophene compound, with total mononuclear aromatics for Main Ingredients and Appearance;
Described polar compound is the material of chain hydrocarbon, cycloalkane and aromatic hydrocarbons containing N, P, S, O.
2. lead acid accumulator PE dividing plate according to claim 1, is characterized in that: described antioxidant is antioxidant 300.
3. lead acid accumulator PE dividing plate according to claim 1 and 2, it is characterized in that: described ultra-high molecular weight polyethylene is the polyethylene of molecular weight more than 3,000,000, the molecular weight of described extra high molecular weight northylen is the polyethylene of 50-100 ten thousand, described silicon dioxide average grain diameter is 19 ~ 25 μm, and described glass fibre cotton diameter is 1.5 ~ 1.9 μm.
4. a preparation method for claim 1 or the lead acid accumulator PE dividing plate described in 2 or 3, is characterized in that: comprise the following steps:
The preparation of A, glass fibre masterbatch: (1) batch mixing: first the glass fibre cotton of the silicon dioxide of described amount and described amount is added mixing 2 ~ 10min in batch mixer, the feedstock oil adding described amount again continues mixing 3 ~ 8min, finally the extra high molecular weight northylen of described amount and the carbon black of described amount are added, continue stirring 5 ~ 10min until mixing of materials is even; (2) extruding pelletization: the material mixed is transported in double screw extruder by feeder, extrudes slivering, then by material traction to granulation in stock-cutter;
The preparation of B, PE dividing plate: (1) batch mixing: the glass fibre masterbatch, silicon dioxide, ultra-high molecular weight polyethylene, carbon black and the antioxidant that prepare are added in batch mixer according to described amount and mixes 20 ~ 30min, afterwards the feedstock oil of described amount is added in batch mixer and continue mixing 80 ~ 100min, until mixing of materials is even; (2) extrusion molding: the raw material mixed is extruded by double screw extruder, compressing through format roll again, for reducing the friction of screw rod and storeroom in extrusion, need continue to add feedstock oil in double screw extruder, making feedstock oil content in dividing plate reach 60 ~ 70%; (3) oil pumping stripping: the dividing plate after shaping is carried out oil pumping process, and in process rear bulkhead, feedstock oil content is 10 ~ 20%, and separator porosity is 60 ± 5%; (4) paint is dry: by the baffle surface coating anion surfactant after oil pumping, and enter oven drying, make dividing plate water content 2 ~ 4%; (5) hole winding is examined: the dividing plate after paint is carried out through optics inspection hole instrument after inspection hole processes, length is wound into a roll according to the rules; (6) following process: PE dividing plate is carried out cutting making product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634497.7A CN105390640B (en) | 2015-09-30 | 2015-09-30 | A kind of lead-acid accumulator PE dividing plates and preparation method |
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| CN201510634497.7A CN105390640B (en) | 2015-09-30 | 2015-09-30 | A kind of lead-acid accumulator PE dividing plates and preparation method |
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| CN105390640A true CN105390640A (en) | 2016-03-09 |
| CN105390640B CN105390640B (en) | 2017-12-19 |
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| CN201510634497.7A Active CN105390640B (en) | 2015-09-30 | 2015-09-30 | A kind of lead-acid accumulator PE dividing plates and preparation method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106067527A (en) * | 2016-07-20 | 2016-11-02 | 镇江奥美机电设备有限公司 | The production system of lead-acid accumulator PE division board |
| CN106129304A (en) * | 2016-07-20 | 2016-11-16 | 镇江奥美机电设备有限公司 | The production technology of lead-acid accumulator PE division board |
| CN106229449A (en) * | 2016-08-26 | 2016-12-14 | 镇江奥美机电设备有限公司 | battery separator production system |
| CN106340606A (en) * | 2016-10-19 | 2017-01-18 | 山东圣阳电源股份有限公司 | Storage battery partition plate and pregnant solution type storage battery |
| CN106340605A (en) * | 2016-10-17 | 2017-01-18 | 镇江奥美机电设备有限公司 | Novel process for producing storage battery PE partition plate |
| CN106531932A (en) * | 2016-12-10 | 2017-03-22 | 芜湖航达网业有限公司 | Polymer composite separator for lead acid storage battery and preparation method thereof |
| CN107216528A (en) * | 2017-07-20 | 2017-09-29 | 安徽杰蓝特新材料有限公司 | Ultra micro glass cotton applied to HDPE double-wall corrugated pipes strengthens agglomerate preparation method |
| CN107216527A (en) * | 2017-07-20 | 2017-09-29 | 安徽杰蓝特新材料有限公司 | A kind of ultra micro glass cotton applied to HDPE double-wall corrugated pipes strengthens master batch |
| CN109159441A (en) * | 2018-08-06 | 2019-01-08 | 天津顺济德科技有限公司 | A kind of high-speed rail power distribution cabinet dummy plate method |
| JP2020533741A (en) * | 2017-09-08 | 2020-11-19 | ダラミック エルエルシー | Improved lead-acid battery separator incorporating carbon |
| CN114161597A (en) * | 2021-11-02 | 2022-03-11 | 镇江泰舸电池隔膜科技有限公司 | Quantitative determination method for high-speed mixing of PE (polyethylene) partition plates |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106129304A (en) * | 2016-07-20 | 2016-11-16 | 镇江奥美机电设备有限公司 | The production technology of lead-acid accumulator PE division board |
| CN106067527A (en) * | 2016-07-20 | 2016-11-02 | 镇江奥美机电设备有限公司 | The production system of lead-acid accumulator PE division board |
| CN106229449A (en) * | 2016-08-26 | 2016-12-14 | 镇江奥美机电设备有限公司 | battery separator production system |
| CN106340605B (en) * | 2016-10-17 | 2018-10-26 | 镇江奥美机电设备有限公司 | A kind of accumulator PE partition board production technologies |
| CN106340605A (en) * | 2016-10-17 | 2017-01-18 | 镇江奥美机电设备有限公司 | Novel process for producing storage battery PE partition plate |
| CN106340606A (en) * | 2016-10-19 | 2017-01-18 | 山东圣阳电源股份有限公司 | Storage battery partition plate and pregnant solution type storage battery |
| CN106531932A (en) * | 2016-12-10 | 2017-03-22 | 芜湖航达网业有限公司 | Polymer composite separator for lead acid storage battery and preparation method thereof |
| CN106531932B (en) * | 2016-12-10 | 2019-11-12 | 芜湖航达网业有限公司 | A kind of lead-acid accumulator macromolecule composite diaphragm and preparation method thereof |
| CN107216528A (en) * | 2017-07-20 | 2017-09-29 | 安徽杰蓝特新材料有限公司 | Ultra micro glass cotton applied to HDPE double-wall corrugated pipes strengthens agglomerate preparation method |
| CN107216527A (en) * | 2017-07-20 | 2017-09-29 | 安徽杰蓝特新材料有限公司 | A kind of ultra micro glass cotton applied to HDPE double-wall corrugated pipes strengthens master batch |
| JP2020533741A (en) * | 2017-09-08 | 2020-11-19 | ダラミック エルエルシー | Improved lead-acid battery separator incorporating carbon |
| JP7405740B2 (en) | 2017-09-08 | 2023-12-26 | ダラミック エルエルシー | Improved lead acid battery separator incorporating carbon |
| CN109159441A (en) * | 2018-08-06 | 2019-01-08 | 天津顺济德科技有限公司 | A kind of high-speed rail power distribution cabinet dummy plate method |
| CN114161597A (en) * | 2021-11-02 | 2022-03-11 | 镇江泰舸电池隔膜科技有限公司 | Quantitative determination method for high-speed mixing of PE (polyethylene) partition plates |
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