CN207250627U - A kind of High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane - Google Patents
A kind of High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane Download PDFInfo
- Publication number
- CN207250627U CN207250627U CN201721043774.8U CN201721043774U CN207250627U CN 207250627 U CN207250627 U CN 207250627U CN 201721043774 U CN201721043774 U CN 201721043774U CN 207250627 U CN207250627 U CN 207250627U
- Authority
- CN
- China
- Prior art keywords
- membrane
- high molecular
- ultra high
- molecular polyethylene
- layer
- 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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- -1 polyethylene Polymers 0.000 title claims abstract description 48
- 239000012528 membrane Substances 0.000 title claims abstract description 39
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 31
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 37
- 239000000919 ceramic Substances 0.000 claims abstract description 24
- 239000003973 paint Substances 0.000 claims abstract description 20
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- 229920001155 polypropylene Polymers 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011247 coating layer Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000010148 water-pollination Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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 discloses a kind of High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane, micropore is provided with ultra high molecular polyethylene membrane, ultra high molecular polyethylene membrane upper and lower surface is provided with polypropylene layer, polypropylene layer surface is provided with inorganic ceramic anticorrosive paint layer, the surface of inorganic ceramic anticorrosive paint layer is provided with water wetted material coating layer, the cracking resistance that the polypropylene coat that the utility model uses can effectively improve membrane improves its mechanical performance, inorganic ceramic anticorrosive paint layer can improve the corrosion-resistant of membrane, resistance to elevated temperatures, wear-resisting property, chemical stability and stability, water wetted material coating layer, improve the hydrophily of membrane surface.When this composite diaphragm works in the electrolytic corrosion environment of battery, the stability of good heat-resisting quantity can be kept, and due to increasing every film strength, so as to extend the service life of battery, improves battery performance.
Description
Technical field
Technical field of lithium batteries is the utility model is related to, it particularly relates to which a kind of High Temperature Lithium Cell is gathered with supra polymer
Ethene multilayer composite membrane.
Background technology
Polyethylene is that current production rate is maximum, one of most widely used plastics variety, accounts for world's plastics total output
30%, wherein, LDPE, HDPE and it is referred to as LLDPE of third generation polyethylene etc. and belongs to thermoplasticity general-purpose plastics, only
There is the UHMWPE that molecular weight is up to more than 1,500,000, engineering plastics application is used as because physical and mechanical property is excellent.UHMWPE
High molecular weight (molecular weight of HDPE usually only 2~300,000) assigns its excellent performance, and belongs to
In moderate, function admirable thermoplastic engineering plastic, the advantages of it has almost concentrated various plastics, there is common polythene
Wear-resisting, impact resistance unrivaled with other engineering plastics, self-lubricating, it is corrosion-resistant, absorb impact energy, it is low temperature resistant, health it is nontoxic,
It is not easy to adhere to, the comprehensive performance such as not hygroscopic, density is smaller.In fact, there is presently no a kind of simple high molecular material is simultaneous
There are so numerous excellent properties.Ultra-high molecular weight polyethylene has had been applied to numerous areas at present, but is not yet applied to lithium
On battery diaphragm, in addition to hydrophily is bad, every characteristic of ultra-high molecular weight polyethylene is suitable for lithium battery diaphragm.Membrane
Main function is to completely cut off the problems such as positive and negative anodes are to prevent battery self discharging and short-circuit the two poles of the earth, lithium-ion electric in battery material
Pond diaphragm material can be divided into：It is several to weave film, nowoven membrane (non-woven fabrics), microporous barrier, composite membrane, diaphragm paper, laminate etc.
Class, but due to being filled with the corrosion of electrolyte and the change of temperature in the working environment of battery, so in long-time service, on
State that the stability in use of various lithium battery diaphragms is poor, be unfavorable for the use steady in a long-term of battery.
The problem of in correlation technique, not yet propose effective solution at present.
Utility model content
For the above-mentioned technical problem in correlation technique, the utility model proposes a kind of High Temperature Lithium Cell supra polymer to gather
Ethene multilayer composite membrane, aluminium oxide and inorganic ceramic anticorrosive paint are evenly applied on membrane, and control coating thickness
In favor of the application of heavy-duty battery, high-performance lithium battery high temperature resistant ultra high molecular polyethylene composite diaphragm is made.
To realize above-mentioned technical purpose, what the technical solution of the utility model was realized in：
High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane, including ultra high molecular polyethylene membrane are described super
Micropore is provided with high molecular polythene membrane, the ultra high molecular polyethylene membrane upper and lower surface is provided with polypropylene layer, institute
State polypropylene layer surface and be provided with inorganic ceramic anticorrosive paint layer, the surface of the inorganic ceramic anticorrosive paint layer is provided with hydrophilic
Material coating layer.
Further, the micropore size uses 0.026-0.038 μm.
Further, the polyethylene diagrams thickness uses 12-38 μm.
The beneficial effects of the utility model：The polypropylene coat that the utility model uses can effectively improve the cracking resistance of membrane
Performance improves its mechanical performance, inorganic ceramic anticorrosive paint layer can improve the corrosion-resistant of membrane, resistance to elevated temperatures, wear-resisting property,
Chemical stability and stability, water wetted material coating layer, improves the hydrophily of membrane surface.Electricity of this composite diaphragm in battery
When working in solution corrosion environment, the stability of good heat-resisting quantity can be kept, and due to increasing every film strength, from
And the service life of battery is extended, improve battery performance.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane according to the utility model embodiment
Cross section structure schematic diagram.
In figure：1. ultra high molecular polyethylene membrane；2. polypropylene layer；3. inorganic ceramic anticorrosive paint layer；4. water wetted material
Coating layer；5. micropore.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art's all other embodiments obtained, all belong to
In the scope of the utility model protection.
As shown in Figure 1, the High Temperature Lithium Cell according to the utility model embodiment is answered with ultra high molecular polyethylene multilayer
Membrane, including ultra high molecular polyethylene membrane 1 are closed, micropore 5, the supra polymer are provided with ultra high molecular polyethylene membrane 1
1 upper and lower surface of polyethylene diagrams is provided with polypropylene layer 2, and 2 surface of polypropylene layer is provided with inorganic ceramic anticorrosive paint layer
3, the surface of the inorganic ceramic anticorrosive paint layer 3 is provided with water wetted material coating layer 4.
The micropore size uses 0.026-0.038 μm.
The polyethylene diagrams thickness uses 12-38 μm.
When specifically used, according to High Temperature Lithium Cell described in the utility model with ultra high molecular polyethylene MULTILAYER COMPOSITE every
Film, is provided with some micropores 5 on ultra high molecular polyethylene membrane 1, and 1 upper and lower surface of ultra high molecular polyethylene membrane is set respectively
There is polypropylene layer 2, be the first polypropylene layer and the second polypropylene layer respectively, two 2 surfaces of polypropylene layer are respectively arranged with inorganic
Ceramic anticorrosive paint layer 3, is the first inorganic ceramic anticorrosive paint layer and the second inorganic ceramic anticorrosive paint layer respectively, first poly- third
The outer surface of alkene layer is provided with the first inorganic ceramic anticorrosive paint layer, and the outer surface of the second polypropylene layer is provided with the second inorganic pottery
Porcelain anticorrosive paint layer, the surface of two inorganic ceramic anticorrosive paint layers 3 are respectively arranged with water wetted material coating layer 4；Polypropylene layer 2
The cracking resistance that membrane can be effectively improved improves its mechanical performance, inorganic ceramic anticorrosive paint layer 3, and powder ceramics are added in coating
The ceramic components such as oxide, ceramic hollow microballon, improve coating heatproof, wear-resisting, crosslinking and thermal insulation, and ceramic component and altogether
Poly- lotion produces chemistry and the cohesive force and adhesive force of mechanical bond, improves tensile strength and adhesion strength, inorganic ceramic without
Machine coating forms the tough and tensile durable elastic film inorganic layer of high intensity coated in 2 surface of polypropylene layer, is a kind of after curing of coatings
The flexibility of existing high molecular material, but the heat safe inorganic coating of organic and/or inorganic materials durability, water wetted material coating layer 4 improve
The hydrophily of membrane surface.
In conclusion by means of the above-mentioned technical proposal of the utility model, by using polypropylene coat can be effective
The cracking resistance for improving membrane improves its mechanical performance, and inorganic ceramic anticorrosive paint layer can improve corrosion-resistant, the high temperature resistant of membrane
Performance, wear-resisting property, chemical stability and stability, water wetted material coating layer, improves the hydrophily of membrane surface.This is compound
When membrane works in the electrolytic corrosion environment of battery, the stability of good heat-resisting quantity can be kept, and due to every
Film strength increase, so as to extend the service life of battery, improves battery performance.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (3)
1. High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane, it is characterised in that including ultra high molecular polyethylene every
Film（1）, the ultra high molecular polyethylene membrane（1）On be provided with micropore（5）, the ultra high molecular polyethylene membrane（1）Up and down
Surface is provided with polypropylene layer（2）, the polypropylene layer（2）Surface is provided with inorganic ceramic anticorrosive paint layer（3）, it is described inorganic
Ceramic anticorrosive paint layer（3）Surface be provided with water wetted material coating layer（4）.
A kind of 2. High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane according to claim 1, it is characterised in that
The micropore size uses 0.026-0.038 μm.
A kind of 3. High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane according to claim 1, it is characterised in that
The polyethylene diagrams thickness uses 12-38 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721043774.8U CN207250627U (en) | 2017-08-21 | 2017-08-21 | A kind of High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721043774.8U CN207250627U (en) | 2017-08-21 | 2017-08-21 | A kind of High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250627U true CN207250627U (en) | 2018-04-17 |
Family
ID=61882154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721043774.8U Expired - Fee Related CN207250627U (en) | 2017-08-21 | 2017-08-21 | A kind of High Temperature Lithium Cell ultra high molecular polyethylene multilayer composite membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467308A (en) * | 2020-10-27 | 2021-03-09 | 惠州锂威新能源科技有限公司 | Diaphragm, preparation method thereof and lithium ion battery |
-
2017
- 2017-08-21 CN CN201721043774.8U patent/CN207250627U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467308A (en) * | 2020-10-27 | 2021-03-09 | 惠州锂威新能源科技有限公司 | Diaphragm, preparation method thereof and lithium ion battery |
| CN112467308B (en) * | 2020-10-27 | 2023-09-05 | 惠州锂威新能源科技有限公司 | Diaphragm, preparation method thereof and lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ultra-high molecular-weight polyethylene multi-layer composite diaphragm for high-temperature lithium-ion batteries Effective date of registration: 20190620 Granted publication date: 20180417 Pledgee: Bank of Communications Limited Jiujiang Branch Pledgor: JIUJIANG ATOP NEW MATERIALS CO.,LTD. Registration number: 2019990000590 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |