CN202888281U - Ultra-high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi-layer composite membrane - Google Patents
Ultra-high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi-layer composite membrane Download PDFInfo
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- CN202888281U CN202888281U CN2012204970357U CN201220497035U CN202888281U CN 202888281 U CN202888281 U CN 202888281U CN 2012204970357 U CN2012204970357 U CN 2012204970357U CN 201220497035 U CN201220497035 U CN 201220497035U CN 202888281 U CN202888281 U CN 202888281U
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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 polyoxyethylene and aluminum oxide multi-layer composite membrane. The multi-layer composite membrane comprises a polyolefin resin base body, ultra-high molecular weight polyethylene layers, micropores A, polyoxyethylene hydrophilic coatings, micropores B, aluminum oxide coatings, and micropores C, wherein the ultra-high molecular weight polyethylene layers are arranged on the upper surface and the lower surface of the polyolefin resin base body; the micropores A are arranged on the ultra-high molecular weight polyethylene layers; the polyoxyethylene hydrophilic coatings are arranged on the surfaces of the ultra-high molecular weight polyethylene layers; the polyoxyethylene hydrophilic coatings are provided with the micropores B; the aluminum oxide coatings are arranged on the surfaces of the polyoxyethylene hydrophilic coatings; and the micropores C are arranged on the aluminum oxide coatings. The ultra-high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi-layer composite membrane disclosed by the utility model adopts the polyoxyethylene coating and the aluminum oxide coatings. Thus, the service life of a battery is prolonged, and the performance and the reliability of a lithium battery are also improved.
Description
Technical field
The utility model belongs to polymeric material field, relates in particular to the compound polyoxyethylene of a kind of ultra high molecular polyethylene and aluminium oxide MULTILAYER COMPOSITE barrier 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.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 being full of the corrosion of electrolyte and the variation of temperature in the operational environment of battery, so when long-term the use, stability in use and the heat-resisting quantity of above-mentioned various lithium battery diaphragms are relatively poor, are 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 the compound polyoxyethylene of a kind of ultra high molecular polyethylene and aluminium oxide MULTILAYER COMPOSITE barrier film, the stability in use and the heat-resisting quantity that are intended to solve existing lithium battery diaphragm are relatively poor, are unfavorable for the problem of use of the long-term stability of battery.
The purpose of this utility model is to provide the compound polyoxyethylene of a kind of ultra high molecular polyethylene and aluminium oxide MULTILAYER COMPOSITE barrier film, and described MULTILAYER COMPOSITE barrier film comprises: vistanex matrix, ultra high molecular polyethylene layer, micropore A, polyoxyethylene hydrophilic layer, micropore B, alumina coated layer, micropore C; Described vistanex matrix upper and lower surface arranges described ultra high molecular polyethylene layer, described micropore A is set on the described ultra high molecular polyethylene layer, described ultra high molecular polyethylene layer surface arranges described polyoxyethylene hydrophilic layer, described micropore B is set on the described polyoxyethylene hydrophilic layer, described polyoxyethylene hydrophilic layer surface arranges described alumina coated layer, and described micropore C is set on the described alumina coated layer.
Further, described micropore size is 0.026-0.038 μ m.
Further, described ultra high molecular polyethylene layer thickness is 12-38 μ m.
The compound polyoxyethylene of ultra high molecular polyethylene of the present utility model and aluminium oxide MULTILAYER COMPOSITE barrier film, the MULTILAYER COMPOSITE barrier film comprises: vistanex matrix, ultra high molecular polyethylene layer, micropore A, polyoxyethylene hydrophilic layer, micropore B, alumina coated layer, micropore C; Vistanex matrix upper and lower surface arranges the ultra high molecular polyethylene layer, micropore A is set on the ultra high molecular polyethylene layer, ultra high molecular polyethylene layer surface arranges the polyoxyethylene hydrophilic layer, micropore B is set on the polyoxyethylene hydrophilic layer, polyoxyethylene hydrophilic layer surface arranges the alumina coated layer, and micropore C is set on the alumina coated layer.But the hydrophilic nmature of polyoxyethylene coat Effective Raise membrane surface of the present utility model, alumina coated layer can improve corrosion-resistant, resistance to elevated temperatures, chemical stability and the stability of barrier film.When this composite diaphragm 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 compound polyoxyethylene of ultra high molecular polyethylene and the aluminium oxide MULTILAYER COMPOSITE membrane configuration schematic diagram that the utility model provides.
Among the figure: 1, vistanex matrix; 2, ultra high molecular polyethylene layer; 21, micropore A; 3, polyoxyethylene hydrophilic layer; 31, micropore B; 4, alumina coated layer; 41, micropore C.
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 the compound polyoxyethylene of a kind of ultra high molecular polyethylene and aluminium oxide MULTILAYER COMPOSITE barrier film, and the MULTILAYER COMPOSITE barrier film comprises: vistanex matrix, ultra high molecular polyethylene layer, micropore A, polyoxyethylene hydrophilic layer, micropore B, alumina coated layer, micropore C; Vistanex matrix upper and lower surface arranges the ultra high molecular polyethylene layer, micropore A is set on the ultra high molecular polyethylene layer, ultra high molecular polyethylene layer surface arranges the polyoxyethylene hydrophilic layer, micropore B is set on the polyoxyethylene hydrophilic layer, polyoxyethylene hydrophilic layer surface arranges the alumina coated layer, and micropore C is set on the alumina coated layer.
As the prioritization scheme of the utility model embodiment, micropore size is 0.026-0.038 μ m.
As the prioritization scheme of the utility model embodiment, the ultra high molecular polyethylene layer thickness is 12-38 μ m.
Referring to accompanying drawing 1, the compound polyoxyethylene of the utility model ultra high molecular polyethylene and aluminium oxide MULTILAYER COMPOSITE barrier film are described in further detail.
The compound polyoxyethylene of ultra high molecular polyethylene of the present utility model and aluminium oxide MULTILAYER COMPOSITE barrier film, be provided with ultra high molecular polyethylene layer 2 in vistanex matrix 1 upper and lower surface, and arrange micropore A21 thereon, 0.026-0.038 μ m is adopted in micropore A21 aperture, and ultra high molecular polyethylene layer 2 thickness adopt 12-38 μ m; On ultra high molecular polyethylene layer 2, be provided with polyoxyethylene hydrophilic layer 3, at polyoxyethylene layer 3 onesize micropore B31 be set; Be provided with alumina coated layer 4 at polyoxyethylene layer 3, be provided with the aperture C41 of same diameter at alumina coated layer 4, because aluminium oxide is a chemistry property material, the tool non-oxidizability, but the chemical stability of Effective Raise barrier film guarantees that membrane properties is stable, improves its heat-resisting quantity simultaneously.
The compound polyoxyethylene of ultra high molecular polyethylene of the present utility model and aluminium oxide MULTILAYER COMPOSITE barrier film, the MULTILAYER COMPOSITE barrier film comprises: vistanex matrix, ultra high molecular polyethylene layer, micropore A, polyoxyethylene hydrophilic layer, micropore B, alumina coated layer, micropore C; Vistanex matrix upper and lower surface arranges the ultra high molecular polyethylene layer, micropore A is set on the ultra high molecular polyethylene layer, ultra high molecular polyethylene layer surface arranges the polyoxyethylene hydrophilic layer, micropore B is set on the polyoxyethylene hydrophilic layer, polyoxyethylene hydrophilic layer surface arranges the alumina coated layer, and micropore C is set on the alumina coated layer.But the hydrophilic nmature of polyoxyethylene coat Effective Raise membrane surface of the present utility model, alumina coated layer can improve corrosion-resistant, resistance to elevated temperatures, chemical stability and the stability of barrier film.When this composite diaphragm 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 only is 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. the compound polyoxyethylene of ultra high molecular polyethylene and aluminium oxide MULTILAYER COMPOSITE barrier film, it is characterized in that, described MULTILAYER COMPOSITE barrier film comprises: vistanex matrix, ultra high molecular polyethylene layer, micropore A, polyoxyethylene hydrophilic layer, micropore B, alumina coated layer, micropore C;
Described vistanex matrix upper and lower surface arranges described ultra high molecular polyethylene layer, described micropore A is set on the described ultra high molecular polyethylene layer, described ultra high molecular polyethylene layer surface arranges described polyoxyethylene hydrophilic layer, described micropore B is set on the described polyoxyethylene hydrophilic layer, described polyoxyethylene hydrophilic layer surface arranges described alumina coated layer, and described micropore C is set on the described alumina coated layer.
2. the compound polyoxyethylene of ultra high molecular polyethylene as claimed in claim 1 and aluminium oxide MULTILAYER COMPOSITE barrier film is characterized in that, described micropore size is 0.026-0.038 μ m.
3. the compound polyoxyethylene of ultra high molecular polyethylene as claimed in claim 1 and aluminium oxide MULTILAYER COMPOSITE barrier film is characterized in that, described ultra high molecular polyethylene layer thickness is 12-38 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204970357U CN202888281U (en) | 2012-09-24 | 2012-09-24 | Ultra-high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi-layer composite membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204970357U CN202888281U (en) | 2012-09-24 | 2012-09-24 | Ultra-high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi-layer composite membrane |
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| CN202888281U true CN202888281U (en) | 2013-04-17 |
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| CN2012204970357U Expired - Fee Related CN202888281U (en) | 2012-09-24 | 2012-09-24 | Ultra-high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi-layer composite membrane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217490A (en) * | 2019-05-31 | 2019-09-10 | 南京德荣包装制品有限公司 | A kind of stamping parts plastic packing box that cushion performance is good |
| CN110217491A (en) * | 2019-05-31 | 2019-09-10 | 南京德荣包装制品有限公司 | A kind of robust stamping parts plastic packing box and its processing technology |
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2012
- 2012-09-24 CN CN2012204970357U patent/CN202888281U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217490A (en) * | 2019-05-31 | 2019-09-10 | 南京德荣包装制品有限公司 | A kind of stamping parts plastic packing box that cushion performance is good |
| CN110217491A (en) * | 2019-05-31 | 2019-09-10 | 南京德荣包装制品有限公司 | A kind of robust stamping parts plastic packing box and its processing technology |
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| 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 |