CN201689928U - Special gel battery separator - Google Patents
Special gel battery separator Download PDFInfo
- Publication number
- CN201689928U CN201689928U CN2009202019473U CN200920201947U CN201689928U CN 201689928 U CN201689928 U CN 201689928U CN 2009202019473 U CN2009202019473 U CN 2009202019473U CN 200920201947 U CN200920201947 U CN 200920201947U CN 201689928 U CN201689928 U CN 201689928U
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- China
- Prior art keywords
- glass fiber
- base paper
- dividing plate
- layer
- separator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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Abstract
The utility model discloses a special gel battery separator. The separator comprises an inner layer, an intermediate layer and an outer layer which are arranged in sequence from inside to outside, wherein the intermediate layer adopts superfine glass fiber base paper; and the inner layer and the outer layer both adopt glass fiber felts. The separator adopts the three-layer structure; the bore diameter of the superfine glass fiber base paper is small, so that short circuit of the positive pole and the negative pole of a storage battery can be effectively prevented; the glass fiber felts composited on the two sides of the superfine glass fiber base paper have higher mechanical strength and elasticity, so as to guarantee the stability of assembly pressure; and the separator has the advantages of large bore diameter of the fiber felts, easy gel pouring and uniform gel distribution, so that a favorable gel electrolyte solution network can be formed.
Description
[technical field]
The utility model relates to the colloid battery field, relates in particular to the special-purpose dividing plate of a kind of colloid battery.
[background technology]
Dividing plate with title of storage battery " third electrode " is one of primary clustering of storage battery, has the effect that prevents the positive and negative electrode short circuit, preserves sulfuric acid electrolyte and assurance utmost point group pressure.The dividing plate of high-quality should have porous, pore-size distribution is good, thickness is even, acid resistance is strong, resilience is good characteristics.
Present valve-regulated liquid formula lead acid accumulator generally adopts the absorption type glass mat separator to make, and electrolyte adopts common dilute sulfuric acid.Part enterprise also directly uses AGM dummy plate colloid battery, but because the AGM clapboard aperture is little, dividing plate hole complications are changeable, therefore can only make the extremely low storage battery of colloidal content, this storage battery is called as " rare colloid battery ", and performance does not reach the requirement of colloid battery, and colloid stops up easily, skewness, the space appears in the part, causes that the oxygen combined efficiency is too high, finally causes faults such as storage battery heating, distortion.If with the high battery of AGM dummy plate colloidal content, colloidal electrolyte can't pour into, can't realize producing.
Characteristics such as colloid battery needs a kind of dividing plate of special use, and desirable material should have that micropore, resistance are little, good springiness, colloidal electrolyte perfusion are easy.At present, the dividing plate that uses of the colloid battery of domestic real meaning is nearly all from the solvent method PVC-SiO of external import
2Dividing plate, cost an arm and a leg (150,000 yuan/ton) account for 15% of battery cost.Adopt PVC-SiO
2Dividing plate can be used for colloid battery, still, and PVC-SiO
2It is lower slightly that dividing plate and AGM dividing plate are compared porosity, and internal resistance is bigger, and high-rate performance slightly reduces, and the colloid battery volume of making is big, cost is high, therefore can not promote the use of on the big storage battery of electric boosted automobile-used lead acid accumulator homenergic density.The industry presses for a kind of porous, low resistance, good springiness, be suitable for colloidal content higher colloidal electrolyte perfusion, dividing plate with low cost replaces the AGM dividing plate, makes the colloid battery of function admirable.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, proposes the special-purpose dividing plate of a kind of colloid battery, can improve porosity, reduces resistance, strengthens elasticity, reduce cost.
For achieving the above object, the utility model proposes the special-purpose dividing plate of a kind of colloid battery, comprise the internal layer, intermediate layer, the skin that set gradually from inside to outside, described intermediate layer is a ultra-fine fibre glass base paper, and internal layer and skin are glass mat.
As preferably, described internal layer is 2: 1 with outer field thickness ratio.
As preferably, the thickness of described internal layer is 0.4～2mm, and outer field thickness is 0.2～1mm.
As preferably, the thickness in described intermediate layer is 0.2～1mm.
As preferably, described intermediate layer is to be the ultra-fine fibre glass of 0.8～1.3u m with diameter, adds weight and is 1～10% synthetic fibers of ultra-fine fibre glass in ultra-fine fibre glass, and be equipped with latex, copy paper with wet method and be shaped, make the fiberglass-based paper in small-bore.
The beneficial effects of the utility model: the utility model dividing plate adopts three-decker, and fiberglass-based paper aperture is little, can effectively prevent the short circuit of storage battery positive and negative electrode.The compound glass mat in superfine glass base paper two sides has mechanical strength and elasticity preferably, can guarantee the stability of assembling pressure, and have advantages such as the fibrofelt aperture is big, the perfusion colloid is easy, be evenly distributed again, can form good colloidal electrolyte network.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of the special-purpose dividing plate of the utility model colloid battery.
[embodiment]
Consult Fig. 1, the special-purpose dividing plate of colloid battery, comprise the internal layer 3, the intermediate layer 2, outer 1 that set gradually from inside to outside, described intermediate layer 2 is a ultra-fine fibre glass base paper, internal layer 3 and outer 1 is glass mat, and described internal layer 3 is 2: 1 with the thickness ratio of skin 1, and the thickness of internal layer 3 is 0.4～2mm, outer 1 thickness is 0.2～1mm, and the thickness in intermediate layer 2 is 0.2～1mm.
Adopt 3 layers of glass layer to be composited, wherein middle one deck is a ultra-fine fibre glass base paper, the glass mat that the two sides respectively has a layer thickness not wait, and the ratio of layer glass fibrofelt thickness is about 2: 1.
Ultra-fine fibre glass base paper: described intermediate layer is to be the ultra-fine fibre glass of 0.8～1.3um with diameter, in ultra-fine fibre glass, add weight and be 1～10% synthetic fibers of ultra-fine fibre glass, and be equipped with latex, copying paper with wet method is shaped, make the fiberglass-based paper in small-bore, thickness is 0.2～1mm.
Glass mat can be made with dry method and wet method dual mode.
Dry method: be to form 10～15um glass fiber with wire drawing, even spray coating polypropylene acid esters solution, oven dry forms glass mat under 180～200 ℃ temperature conditions then, and the used polyacrylate solution of above-mentioned steps is that 50% polyacrylate and water form according to 1: 1.2 mixed by solid content.
Wet method: with diameter is 5～20um, and the glass chopped silk of length 5～20mm is made into slurry with plain boiled water, is shaped through starching, and dehydration obtains the wet felt of glass fibre, floods gluing with organic adhesive, and oven dry obtains glass mat then.Plain boiled water is made up of pure water, thickener, dispersant, defoamer etc., thickener adopts sodium carboxymethylcellulose, make the viscosity in the slurry reach 8CP～12CP, dispersant adopts fatty acid polymer, concentration in slurry reaches 80ppm～100ppm, and defoamer adopts Agitan295, makes that air content is 4～10% in the slurry, the content of glass chopped silk in slurry is 0.1～0.3%, and slurry pH value is 4～8.Bonding agent is that any mixes with 1～30% coupling agent KH560 in polyvinyl acetate emulsion, acrylic acid ester emulsion, the thermosetting acrylic.
The composite glass fiber dummy plate: ultra-fine fibre glass base paper two sides sprays a small amount of polyacrylate solution respectively, respectively the glass mat of two kinds of thickness is pasted and be compounded in ultra-fine fibre glass base paper surface, oven dry reaches semi-cured state under 160～180 ℃ temperature conditions, wherein the glass mat thickness that thickness is little is 0.2～1mm, and the glass mat thickness that thickness is big is 0.4～2mm.Then through cut, operation such as impression promptly forms " U " shape composite glass fiber dividing plate, " U " composite glass fiber dividing plate inboard is the big glass fibre carpet veneer of thickness, the outside is the little glass fibre carpet veneer of thickness.
The used polyacrylate solution of above-mentioned steps is that 40% polyacrylate and water form according to 1: 1 mixed by solid content.
With utility model composite glass fiber dividing plate clad anode plate, negative plate does not coat.
Fiberglass-based paper aperture is little, can effectively prevent the short circuit of storage battery positive and negative electrode.The compound glass mat in superfine glass base paper two sides has mechanical strength and elasticity preferably, can guarantee the stability of assembling pressure, and have advantages such as the fibrofelt aperture is big, the perfusion colloid is easy, be evenly distributed again, can form good colloidal electrolyte network.
Though the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (4)
1. the special-purpose dividing plate of a colloid battery, it is characterized in that: comprise the internal layer, intermediate layer, the skin that set gradually from inside to outside, described intermediate layer is a ultra-fine fibre glass base paper, ultra-fine fibre glass base paper is that the employing diameter is the ultra-fine fibre glass of 0.8～1.3um, and internal layer and skin are glass mat.
2. the special-purpose dividing plate of a kind of colloid battery as claimed in claim 1, it is characterized in that: described internal layer is 2: 1 with outer field thickness ratio.
3. the special-purpose dividing plate of a kind of colloid battery as claimed in claim 2, it is characterized in that: the thickness of described internal layer is 0.4～2mm, outer field thickness is 0.2～1mm.
4. the special-purpose dividing plate of a kind of colloid battery as claimed in claim 3, it is characterized in that: the thickness in described intermediate layer is 0.2～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202019473U CN201689928U (en) | 2009-12-08 | 2009-12-08 | Special gel battery separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202019473U CN201689928U (en) | 2009-12-08 | 2009-12-08 | Special gel battery separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689928U true CN201689928U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202019473U Expired - Lifetime CN201689928U (en) | 2009-12-08 | 2009-12-08 | Special gel battery separator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201689928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137931A (en) * | 2013-01-23 | 2013-06-05 | 广州华创化工材料科技开发有限公司 | Diaphragm paper and preparation method and application thereof |
| CN105024031A (en) * | 2015-07-15 | 2015-11-04 | 重庆伟业电源材料有限公司 | Production process of storage battery glass fiber separator |
| WO2019126978A1 (en) * | 2017-12-26 | 2019-07-04 | 广州华创化工材料科技开发有限公司 | One-shot molded lithium ion battery separator, preparation method therefor and use thereof |
-
2009
- 2009-12-08 CN CN2009202019473U patent/CN201689928U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137931A (en) * | 2013-01-23 | 2013-06-05 | 广州华创化工材料科技开发有限公司 | Diaphragm paper and preparation method and application thereof |
| CN103137931B (en) * | 2013-01-23 | 2015-11-25 | 华南理工大学 | Diaphragm paper and preparation method and application thereof |
| CN105024031A (en) * | 2015-07-15 | 2015-11-04 | 重庆伟业电源材料有限公司 | Production process of storage battery glass fiber separator |
| WO2019126978A1 (en) * | 2017-12-26 | 2019-07-04 | 广州华创化工材料科技开发有限公司 | One-shot molded lithium ion battery separator, preparation method therefor and use thereof |
| US11710875B2 (en) | 2017-12-26 | 2023-07-25 | Fibrway Material Science & Technology Development Co., Ltd. | One-step molded lithium ion battery separator, preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
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| CX01 | Expiry of patent term |