CN202888283U - Ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane - Google Patents
Ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane Download PDFInfo
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- CN202888283U CN202888283U CN2012204970592U CN201220497059U CN202888283U CN 202888283 U CN202888283 U CN 202888283U CN 2012204970592 U CN2012204970592 U CN 2012204970592U CN 201220497059 U CN201220497059 U CN 201220497059U CN 202888283 U CN202888283 U CN 202888283U
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- high molecular
- ultra
- micropore
- ultra high
- molecular weight
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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 an ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane. The composite membrane comprises a polyolefin resin base body, micropores A, ultra-high molecular weight polyethylene layers, and micropores B, wherein the polyolefin resin base body is provided with the micropores A; the ultra-high molecular weight polyethylene layers are arranged on the upper and lower surfaces of the polyolefin resin base body; and the micropores B are arranged on the ultra-high molecular weight polyethylene layers. The ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane disclosed by the utility model adopts the ultra-high molecular weight polyethylene layers. Thus, the performance of the membrane is improved; the service life of a lithium battery is prolonged, and the performance of the lithium battery is further improved.
Description
Technical field
The utility model belongs to polymeric material field, relates in particular to a kind of ultra high molecular polyethylene compound polyolefin microporous compound film.
Background technology
Polyethylene is one of maximum, most widely used plastics variety of current production rate, accounts for 30% of world's plastics total output.Wherein, LDPE, HDPE and be called as the poly LLDPE of the third generation etc. and all belong to the thermoplasticity general-purpose plastics have molecular weight only up to the UHMWPE more than 1,500,000, use as engineering plastics because physical and mechanical property is excellent.The high molecular weight (molecular weight of HDPE only has 2～300,000 usually) of UHMWPE is given its excellent serviceability, and belong to thermoplastic engineering plastic moderate, function admirable, it has almost concentrated the advantage of various plastics, the combination property such as have unrivaled wear-resisting, shock-resistant, the self-lubricating of common polythene and other engineering plastics, corrosion-resistant, impact-absorbing energy, low temperature resistant, health is nontoxic, be difficult for adhering to, be difficult for suction, density is less.In fact, also there is not a kind of simple macromolecular material to have so numerous excellent properties concurrently at present.Ultra-high molecular weight polyethylene has been applied to numerous areas at present, but not yet is applied on the lithium battery diaphragm owing to its hydrophily is not good.Barrier film main function in battery material is that isolated both positive and negative polarity is to prevent the problems such as battery self discharging and the two poles of the earth short circuit, the lithium ion battery separator material can be divided into: weave film, nowoven membrane (nonwoven fabrics), microporous barrier, composite membrane, diaphragm paper, several classes such as laminate, but owing to be full of the corrosion of electrolyte and the variation of temperature in the operational environment of battery, so when long-term the use, the stability in use of above-mentioned various lithium battery diaphragms is relatively poor, is unfavorable for the use of the long-term stability of battery.
The utility model content
The purpose of this utility model is to utilize at a kind of ultra high molecular polyethylene compound polyolefin microporous compound film, and the stability in use that is intended to solve existing lithium battery diaphragm is relatively poor, is unfavorable for the problem of use of the long-term stability of battery.
The purpose of this utility model is to provide a kind of ultra high molecular polyethylene compound polyolefin microporous compound film, and described composite membrane comprises: vistanex matrix, micropore A, ultra high molecular polyethylene layer, micropore B; Described micropore A is set on the described vistanex matrix, and described vistanex matrix upper and lower surface arranges described ultra high molecular polyethylene layer, and described micropore B is set on the described ultra high molecular polyethylene layer.
Further, the aperture of described micropore is 0.026-0.038 μ m.
Further, the material selection of described vistanex matrix is macromolecule polypropylene and poly composite material.
Ultra high molecular polyethylene compound polyolefin microporous compound film of the present utility model, this composite membrane comprises: vistanex matrix, micropore A, ultra high molecular polyethylene layer, micropore B; Micropore A is set on the vistanex matrix, and vistanex matrix upper and lower surface arranges the ultra high molecular polyethylene layer, and micropore B is set on the ultra high molecular polyethylene layer.When ultra high molecular polyethylene compound polyolefin microporous compound film of the present utility model is worked in the electrolyte corrosive environment of battery, can keep good heat-resisting quantity and stability, thereby prolonged the useful life of battery, improved battery performance, and ensured lithium battery security reliability in use, can also effectively prevent the generation of the serious accidents such as lithium battery blast on fire.
Description of drawings
Fig. 1 is the structural representation of the ultra high molecular polyethylene compound polyolefin microporous compound film that provides of the utility model.
Among the figure: 1, vistanex matrix; 11, micropore A; 2, ultra high molecular polyethylene layer; 21, micropore B.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model embodiment provides a kind of ultra high molecular polyethylene compound polyolefin microporous compound film, and this composite membrane comprises: vistanex matrix, micropore A, ultra high molecular polyethylene layer, micropore B; Micropore A is set on the vistanex matrix, and vistanex matrix upper and lower surface arranges the ultra high molecular polyethylene layer, and micropore B is set on the ultra high molecular polyethylene layer.
As the prioritization scheme of the utility model embodiment, the aperture of micropore is 0.026-0.038 μ m.
As the prioritization scheme of the utility model embodiment, the material selection of vistanex matrix be macromolecule polypropylene and poly composite material.
Referring to accompanying drawing 1, the utility model ultra high molecular polyethylene compound polyolefin microporous compound film is described in further detail.
Ultra high molecular polyethylene compound polyolefin microporous compound film of the present utility model, arrange micropore A11 at vistanex matrix 1,0.026-0.038 μ m is adopted in micropore A11 aperture, polyolefinic material selection be macromolecule polypropylene and poly composite material; Upper and lower surface at vistanex matrix 1 is furnished with ultra high molecular polyethylene layer 2, and arranges that at ultra high molecular polyethylene layer 2 aperture is the micropore B21 of 0.026-0.038 μ m, makes barrier film have good chemistry, electrochemical stability and mechanism performance.
Ultra high molecular polyethylene compound polyolefin microporous compound film of the present utility model, this composite membrane comprises: vistanex matrix, micropore A, ultra high molecular polyethylene layer, micropore B; Micropore A is set on the vistanex matrix, and vistanex matrix upper and lower surface arranges the ultra high molecular polyethylene layer, and micropore B is set on the ultra high molecular polyethylene layer.When ultra high molecular polyethylene compound polyolefin microporous compound film of the present utility model is worked in the electrolyte corrosive environment of battery, can keep good heat-resisting quantity and stability, thereby prolonged the useful life of battery, improved battery performance, and ensured lithium battery security reliability in use, can also effectively prevent the generation of the serious accidents such as lithium battery blast on fire.
The above is only own for preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. a ultra high molecular polyethylene compound polyolefin microporous compound film is characterized in that, described composite membrane comprises: vistanex matrix, micropore A, ultra high molecular polyethylene layer, micropore B;
Described micropore A is set on the described vistanex matrix, and described vistanex matrix upper and lower surface arranges described ultra high molecular polyethylene layer, and described micropore B is set on the described ultra high molecular polyethylene layer.
2. ultra high molecular polyethylene compound polyolefin microporous compound film as claimed in claim 1 is characterized in that, the aperture of described micropore is 0.026-0.038 μ m.
3. ultra high molecular polyethylene compound polyolefin microporous compound film as claimed in claim 1 is characterized in that, the material selection of described vistanex matrix be macromolecule polypropylene and poly composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204970592U CN202888283U (en) | 2012-09-24 | 2012-09-24 | Ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204970592U CN202888283U (en) | 2012-09-24 | 2012-09-24 | Ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888283U true CN202888283U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204970592U Expired - Fee Related CN202888283U (en) | 2012-09-24 | 2012-09-24 | Ultra-high molecular weight polyethylene composite polyolefin micropore composite membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888283U (en) |
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2012
- 2012-09-24 CN CN2012204970592U patent/CN202888283U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130417 Termination date: 20180924 |