CN206106491U - 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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- CN206106491U CN206106491U CN201620781046.6U CN201620781046U CN206106491U CN 206106491 U CN206106491 U CN 206106491U CN 201620781046 U CN201620781046 U CN 201620781046U CN 206106491 U CN206106491 U CN 206106491U
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- high molecular
- micropore
- layer
- ultra high
- polyoxyethylene
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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, compound diaphragm is including two ultra high molecular polyethylene layers, first micropore, the hydrophilic layer of polyoxyethylene, second micropore, aluminium oxide coat, aluminium oxide coat centre gripping is between two ultra high molecular polyethylene layers, and the outside on every ultra high molecular polyethylene layer all is provided with a hydrophilic layer of polyoxyethylene, ultra high molecular polyethylene layer sets up first micropore, and the hydrophilic layer of polyoxyethylene sets up the second micropore, be provided with a plurality of hydrophobic median on the aluminium oxide coat. The utility model discloses an electrolyte during operation in A corrosive environment of battery can keep fine high temperature resistance and stability to the life of battery has been prolonged, hang the improvement of fluid power power, strengthened the performance of battery, make the high -efficient steady operation of lithium ion battery, simple structure, low cost have the holding power of high strength and good electrolyte adsorptivity.
Description
Technical field
This utility model is related to polymeric material field, it particularly relates to a kind of compound polyoxy of ultra high molecular polyethylene
Ethylene and aluminum oxide multi-layer composite diaphragm.
Background technology
Polyethylene is one of maximum, most widely used plastics variety of current production rate, accounts for the 30% of world's plastics total output.
Wherein, LDPE, HDPE and it is referred to as LLDPE of third generation polyethylene etc. and belongs to thermoplasticity general-purpose plastics, has molecular weight only
Up to more than 1,500,000 UHMWPE, because physical and mechanical property is excellent as engineering plastics application.UHMWPE high molecular weight
(molecular weight of HDPE generally only 2～300,000) gives its excellent performance, and belongs to moderate, function admirable
Thermoplastic engineering plastic, it has almost concentrated the advantage of various plastics, with common polythene and other engineering plastics without comparable
The wear-resisting of plan, impact resistance, self-lubricating, corrosion-resistant, absorption impact energy, low temperature resistant, health are nontoxic, not easy-adhesion, not hygroscopic, close
Spend the combination property such as less.At present ultra-high molecular weight polyethylene has had been applied to numerous areas, in addition to hydrophilic is not good, surpasses
Every characteristic of High molecular weight polyethylene is suitable for lithium battery diaphragm.The main function in battery material of barrier film is to completely cut off just
The problems such as negative pole is to prevent battery self discharging and the two poles of the earth short circuit, lithium ion battery separator material can be divided into：Weaving film, it is non-to knit
Several classes such as film (non-woven fabrics), microporous membrane, composite membrane, diaphragm paper, laminate are made, but due to being filled with the working environment of battery
The corrosion of electrolyte and the change of temperature, so in life-time service, the stability in use of above-mentioned various lithium battery diaphragms is poor,
It is unfavorable for the use steady in a long-term of battery.And adopt cylindrical hole, the extension liquid of film the microporous membrane of lithium battery at present more（Film is inhaled
Attached electrolyte）Ability is general, is unfavorable for that ion passes through.
Utility model content
For the above-mentioned technical problem in correlation technique, the utility model proposes a kind of high-performance lithium battery supra polymer
Polyethylene composite diaphragm, can solve the problem that the stability in use of existing lithium battery diaphragm is poor and to hang liquid energy power general, be unfavorable for from
The problem that son passes through.
To realize above-mentioned technical purpose, what the technical solution of the utility model was realized in：
A kind of compound Polyethylene oxide of ultra high molecular polyethylene and aluminum oxide multi-layer composite diaphragm, the composite diaphragm includes two
Individual ultra high molecular polyethylene layer, the first micropore, Polyethylene oxide hydrophilic layer, the second micropore, alumina coating layer；The aluminium oxide is applied
Coating is clamped between described two ultra high molecular polyethylene layers, is provided with the outside of each described ultra high molecular polyethylene layer
One Polyethylene oxide hydrophilic layer；The ultra high molecular polyethylene layer arranges first micropore, and the Polyethylene oxide is hydrophilic
Layer arranges second micropore；Some hydrophobic isolation strip are provided with the alumina coating layer.
Preferably, first micropore size adopts 0.024-0.036 μm.
Preferably, the thickness of the polyethylene diagrams is 14-40 μm.
Preferably, second micropore is shaped as infundibulate.
The beneficial effects of the utility model：High-performance lithium battery of the present utility model with ultra high molecular polyethylene it is compound every
Film, when the electrolyte of battery works in corrosive environment, can keep good heat-resisting quantity and stability, so as to extend electricity
The service life in pond；Simultaneously because hang liquid energy power improving, the performance of battery is enhanced, run lithium ion battery efficient stable；
Simple structure, with low cost, the support force with high intensity and good electrolyte adsorptivity are extensively adapted to the lithium of various models
Battery improves supporting.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of compound Polyethylene oxide of ultra high molecular polyethylene and the aluminium oxide according to this utility model embodiment
The structural representation of multilayer composite membrane.
In figure：
1st, ultra high molecular polyethylene layer；11st, the first micropore；2nd, Polyethylene oxide hydrophilic layer；21st, the second micropore；3rd, aluminium oxide
Coat；4th, hydrophobic isolation strip.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the scope of this utility model protection.
As shown in figure 1, a kind of compound Polyethylene oxide of ultra high molecular polyethylene according to this utility model embodiment and
Aluminum oxide multi-layer composite diaphragm, the composite diaphragm includes two ultra high molecular polyethylene layers 1, the first micropores 11, Polyethylene oxide
Hydrophilic layer 2, the second micropore 21, alumina coating layer 3；The alumina coating layer 3 is clamped in the poly- second of described two supra polymers
Between alkene layer 1, the outside of each ultra high molecular polyethylene layer 1 is provided with a Polyethylene oxide hydrophilic layer 2；It is described
Ultra high molecular polyethylene layer 1 arranges first micropore 11, and the Polyethylene oxide hydrophilic layer 2 arranges second micropore 21；Institute
State and some hydrophobic isolation strip 4 are provided with alumina coating layer 3.
The aperture of first micropore 11 adopts 0.024-0.036 μm.
The thickness of the polyethylene diagrams is 14-40 μm.
Second micropore 21 is shaped as infundibulate.
In sum, by means of above-mentioned technical proposal of the present utility model, high-performance lithium battery of the present utility model is used super
High-molecular polythene composite diaphragm, when the electrolyte of battery works in corrosive environment, can keep good heat-resisting quantity and
Stability, so as to extend the service life of battery；Simultaneously because hang liquid energy power improving, enhance the performance of battery, make lithium from
Sub- battery-efficient stable operation；It is simple structure, with low cost, the support force with high intensity and good electrolyte adsorptivity,
The lithium battery for being extensively adapted to various models improves supporting.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model
Protection domain within.
Claims (1)
1. a kind of ultra high molecular polyethylene is combined Polyethylene oxide and aluminum oxide multi-layer composite diaphragm, it is characterised in that described compound
Barrier film includes two ultra high molecular polyethylene layers, the first micropore, Polyethylene oxide hydrophilic layer, the second micropore, alumina coating layers；Institute
State alumina coating layer to be clamped between described two ultra high molecular polyethylene layers, outside each ultra high molecular polyethylene layer
Side is provided with a Polyethylene oxide hydrophilic layer；The ultra high molecular polyethylene layer arranges first micropore, and described the
One micropore size adopts 0.024-0.025 μm；The Polyethylene oxide hydrophilic layer arranges second micropore, second micropore
Infundibulate is shaped as, some hydrophobic isolation strip are provided with the alumina coating layer；The thickness of the multilayer composite membrane is
14-40μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620781046.6U CN206106491U (en) | 2016-07-22 | 2016-07-22 | Ultra -high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi -layer composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620781046.6U CN206106491U (en) | 2016-07-22 | 2016-07-22 | Ultra -high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi -layer composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206106491U true CN206106491U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620781046.6U Expired - Fee Related CN206106491U (en) | 2016-07-22 | 2016-07-22 | Ultra -high molecular weight polyethylene composite polyoxyethylene and aluminum oxide multi -layer composite membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN206106491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764827A (en) * | 2021-09-07 | 2021-12-07 | 广东九彩新材料有限公司 | Microporous modified polypropylene lithium battery diaphragm and preparation method thereof |
| CN114744363A (en) * | 2022-03-29 | 2022-07-12 | 中材锂膜(宁乡)有限公司 | Lithium ion battery diaphragm slurry, preparation method thereof and diaphragm |
-
2016
- 2016-07-22 CN CN201620781046.6U patent/CN206106491U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764827A (en) * | 2021-09-07 | 2021-12-07 | 广东九彩新材料有限公司 | Microporous modified polypropylene lithium battery diaphragm and preparation method thereof |
| CN113764827B (en) * | 2021-09-07 | 2022-08-23 | 广东九彩新材料有限公司 | Microporous modified polypropylene lithium battery diaphragm and preparation method thereof |
| CN114744363A (en) * | 2022-03-29 | 2022-07-12 | 中材锂膜(宁乡)有限公司 | Lithium ion battery diaphragm slurry, preparation method thereof and diaphragm |
| CN114744363B (en) * | 2022-03-29 | 2024-05-28 | 中材锂膜(宁乡)有限公司 | Lithium ion battery diaphragm slurry, preparation method thereof and diaphragm |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20210722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |