CN203746949U - Polymer composite separator - Google Patents
Polymer composite separator Download PDFInfo
- Publication number
- CN203746949U CN203746949U CN201320861117.XU CN201320861117U CN203746949U CN 203746949 U CN203746949 U CN 203746949U CN 201320861117 U CN201320861117 U CN 201320861117U CN 203746949 U CN203746949 U CN 203746949U
- Authority
- CN
- China
- Prior art keywords
- polymer composite
- composite separator
- polyester fiber
- polypropylene
- utility
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
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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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- Cell Separators (AREA)
Abstract
The utility model provides a polymer composite separator. The polymer composite separator comprises polyester fiber, two polypropylene layers and magnetic material layers, wherein the polyester fiber is sandwiched between the two polypropylene layers; the magnetic material layer is arranged on the outer side of each polypropylene layer; the section of the polymer composite separator is sinusoidal. In the polymer composite separator provided by the utility model, the polyester fiber is sandwiched between the two polypropylene layers, and the whole polymer composite separator is made into a wavy section with a sinusoid, so that when the polymer composite separator is under stress, external force can be easily released by utilizing the elasticity of waviness, and then the anti-damage property is improved.
Description
Technical field
The utility model relates to lithium battery field, particularly a kind of macromolecule composite diaphragm.
Background technology
Polypropylene diaphragm is the membrane manufacture that a kind of hot strength is high, resistance to elevated temperatures is good, is widely used in industrial production, for example polyethylene barrier film.This membrane manufacture need to have the ability that hinders electrical conductivity, prior art is normally added inorganic particulate material in polypropylene material, as titanium dioxide and earth silicon material, the ability that can reduce inside battery electric leakage under battery normal condition is general, runs under the emergency of high temperature or ambient pressure both positive and negative polarity short circuit easily occurs at battery.Reason is that the inorganic particulate of said polyolefins membrane configuration is generally distributed in membrane surface, is not distributed in barrier film inside, easily comes off in use.After improving in above-mentioned prior art, polyalkene diaphragm adopts nano aluminium oxide ceramic material as inorganic adding materials, has strengthened the intensity of membrane manufacture itself.
In addition, existing polyalkene diaphragm stretches inhomogeneous in process of production, causes barrier film intensity prepared by simple tension technique to decline, and affects the mechanical property of polyalkene diaphragm.
Utility model content
The utility model provides a kind of macromolecule composite diaphragm of good destructibility resistance.
For addressing the above problem, as an aspect of the present utility model, provide a kind of macromolecule composite diaphragm, comprising: polyester fiber; Two polypropylene layers, polyester fiber is clamped between two polypropylene layers; Magnetic material layer, the outside of each polypropylene layer is provided with a magnetic material layer; The cross section of macromolecule composite diaphragm is sine curve.
Further, macromolecule composite diaphragm arranges porose at sinusoidal trough place.
Further, the aperture in hole is 0.01 to 0.02 micron.
The utility model is being clamped in polyester fiber between two polypropylene layers, and whole macromolecule composite diaphragm is made and had sinusoidal wavy cross-section, therefore, when stressed, the elasticity that can utilize easily waveform to possess, discharge the external force that it is subject to, thereby improved anti-damage performance.
Brief description of the drawings
Fig. 1 schematically shows structural representation of the present utility model.
Reference numeral in figure: 1, polyester fiber; 2, polypropylene layer.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Please refer to Fig. 1, the utility model provides a kind of macromolecule composite diaphragm, comprising: polyester fiber 1; Two polypropylene layers 2, polyester fiber 1 is clamped between two polypropylene layers 2; Magnetic material layer, the outside of each polypropylene layer 2 is provided with a magnetic material layer; The cross section of macromolecule composite diaphragm is sine curve.
Preferably, macromolecule composite diaphragm arranges porose at sinusoidal trough place.Preferably, the outer setting of magnetic material layer has hydrophilic layer.
Preferably, the aperture in hole is 0.01 to 0.02 micron.
The utility model is being clamped in polyester fiber between two polypropylene layers, and whole macromolecule composite diaphragm is made and had sinusoidal wavy cross-section, therefore, when stressed, the elasticity that can utilize easily waveform to possess, discharge the external force that it is subject to, thereby improved anti-damage performance and mechanical property.In the time there is no External Force Acting, can, under the elastic reaction of himself, revert to corrugated state again.Meanwhile, utilize polyester fiber also can improve intensity of the present utility model, prevent its damage.
Preferably, between magnetic material layer and polypropylene layer 2, be also provided with inorganic material layer, such as alumina layer etc.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. a macromolecule composite diaphragm, is characterized in that, comprising:
Polyester fiber (1);
Two polypropylene layers (2), described polyester fiber (1) is clamped between described two polypropylene layers (2);
Magnetic material layer, the outside of each described polypropylene layer (2) is provided with a described magnetic material layer;
The cross section of described macromolecule composite diaphragm is sine curve.
2. macromolecule composite diaphragm according to claim 1, is characterized in that, described macromolecule composite diaphragm arranges porose at described sinusoidal trough place.
3. macromolecule composite diaphragm according to claim 2, is characterized in that, the aperture in described hole is 0.01 to 0.02 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861117.XU CN203746949U (en) | 2013-12-24 | 2013-12-24 | Polymer composite separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861117.XU CN203746949U (en) | 2013-12-24 | 2013-12-24 | Polymer composite separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746949U true CN203746949U (en) | 2014-07-30 |
Family
ID=51346711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320861117.XU Expired - Fee Related CN203746949U (en) | 2013-12-24 | 2013-12-24 | Polymer composite separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251966A (en) * | 2016-08-29 | 2016-12-21 | 泰州市强达不锈钢丝绳有限公司 | A kind of high-strength cable independent wire strand core wire rope |
-
2013
- 2013-12-24 CN CN201320861117.XU patent/CN203746949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251966A (en) * | 2016-08-29 | 2016-12-21 | 泰州市强达不锈钢丝绳有限公司 | A kind of high-strength cable independent wire strand core wire rope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151214 Address after: 332000 Chengxi port area, Jiujiang Development Zone, Jiangxi Patentee after: Jiujiang Lixin New Material Co., Ltd. Address before: 518000 Guangdong, Longgang, Buji Street Gan hang community Gan Eru No. 1 Giant silver science and Technology Industrial Park, plant No. 301, No. 2 Patentee before: ATOP New Materials Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20191224 |