CN205846085U - A kind of low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium battery diaphragm - Google Patents
A kind of low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium battery diaphragm Download PDFInfo
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- CN205846085U CN205846085U CN201620766920.9U CN201620766920U CN205846085U CN 205846085 U CN205846085 U CN 205846085U CN 201620766920 U CN201620766920 U CN 201620766920U CN 205846085 U CN205846085 U CN 205846085U
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- high molecular
- lithium battery
- polyoxyethylene
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- 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
This utility model relates to a kind of low resistance ultra-high molecular weight polyethylene and is combined polyoxyethylene lithium battery diaphragm, including ultra high molecular polyethylene layer, the both sides of described ultra high molecular polyethylene layer are all disposed with inorganic particles sublayer, polyoxyethylene material layer, polyvinylidene fluoride material layer and corona processing layer, and described corona processing layer is provided with concaveconvex structure.The beneficial effects of the utility model are: can improve the ion permeability of barrier film, heat stability and mechanical performance, improve security performance and the charge-discharge performance of lithium battery, it is ensured that the stability of lithium battery work, have higher using value.
Description
Technical field
This utility model relates to lithium battery diaphragm field, it particularly relates to a kind of low resistance ultra-high molecular weight polyethylene
Compound polyoxyethylene lithium battery diaphragm.
Background technology
In the structure of lithium battery, barrier film is one of crucial interior layer assembly.The performance of barrier film determines the interface of battery
Structure, internal resistance etc., directly affect the characteristics such as the capacity of battery, circulation and security performance, and the barrier film of excellent performance is to improving electricity
The combination property in pond has important effect.The Main Function of barrier film is that the positive and negative electrode making battery is separated, and prevents the two poles of the earth from connecing
Touch and short-circuit, additionally there is the function that electrolyte ion can be made to pass through.Barrier film material is nonconducting, its physicochemical properties
The performance of battery is had a great impact.The kind of battery is different, and the barrier film of employing is the most different.
Existing barrier film non-refractory, explosive, and ion permeability is the best.
Therefore, develop a kind of high temperature resistant and that ion permeability is good barrier film, become and need asking of solution badly for insider
Topic.
Utility model content
The utility model proposes a kind of low resistance ultra-high molecular weight polyethylene and be combined polyoxyethylene lithium battery diaphragm, overcome
The deficiency of above-mentioned aspect in existing product.
The purpose of this utility model is achieved through the following technical solutions:
A kind of low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium battery diaphragm, including ultra high molecular polyethylene
Layer, the both sides of described ultra high molecular polyethylene layer are all disposed with inorganic particles sublayer, polyoxyethylene material layer, polyvinylidene fluoride
Alkene material layer and corona processing layer, described corona processing layer is provided with concaveconvex structure.
Further, this low resistance ultra-high molecular weight polyethylene is combined the thickness of polyoxyethylene lithium battery diaphragm is 12-38 μ
m。
Further, described inorganic particles sublayer is ceramic material, and the thickness of this inorganic particles sublayer is 3 μm.
The beneficial effects of the utility model are: can improve the ion permeability of barrier film, heat stability and mechanical performance, improve
The security performance of lithium battery and charge-discharge performance, it is ensured that the stability of lithium battery work, have higher using value.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
The accompanying drawing used required in is briefly described, it should be apparent that, the accompanying drawing in describing below is the most of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 be the low resistance ultra-high molecular weight polyethylene described in this utility model embodiment be combined polyoxyethylene lithium battery every
The sectional view of film.
In figure:
1, ultra high molecular polyethylene layer；2, inorganic particles sublayer；3, polyoxyethylene material layer；4, polyvinylidene fluoride material
Layer；5, corona processing layer；6, concaveconvex structure.
Detailed description of the invention
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 belong to
Scope in this utility model protection.
As it is shown in figure 1, it is compound poly-according to a kind of low resistance ultra-high molecular weight polyethylene described in this utility model embodiment
Oxygen ethylene lithium battery diaphragm, including ultra high molecular polyethylene layer 1, the both sides of described ultra high molecular polyethylene layer 1 all set gradually
There are inorganic fine particles layer 2, polyoxyethylene material layer 3, polyvinylidene fluoride material layer 4 and corona processing layer 5, described corona processing layer
Concaveconvex structure 6 it is provided with on 5.
In a specific embodiment of the present utility model, this low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium
The thickness of battery diaphragm is 12-38 μm.
In a specific embodiment of the present utility model, described inorganic particles sublayer 2 is ceramic material, and this is inorganic micro-
The thickness of particle layer 2 is 3 μm.
Understand technique scheme of the present utility model for convenience, below by way of new to this practicality in specifically used mode
The technique scheme of type is described in detail.
Ultra high molecular polyethylene layer 1 has good corrosion-resistant and resistance to elevated temperatures, it is possible to electrolyte in the battery
Variations in temperature when corrosive environment and use keeps stable use characteristic, thus extends the stability of the use of battery,
Improve battery performance, and at surface configuration poly-polyoxyethylene material layer 3 and polyvinylidene fluoride material layer 4, improve barrier film
The hydrophilic on surface, reduces storeroom impedance and assists electrolyte to turn on lithium ion, extending the service life of lithium battery, have
Well practical value.
Inorganic particles sublayer 2 uses ceramic material, has good heat stability, at high temperature makes the heat that barrier film is overall
Swelling becomes the least, can keep its shape, does not haves the hidden danger of blast, improves the security performance of lithium battery,
Also can significantly improve the hardness of battery, energy density and security performance simultaneously.
There is the corona processing layer 5 of concaveconvex structure 6, on the basis of improve the security performance of lithium battery diaphragm, also carry
The high specific surface area on upper and lower two top layers of lithium battery diaphragm, thus add the contact surface of lithium battery diaphragm and electrolyte solution
Long-pending so that lithium battery diaphragm imbibition ability is steadily improved, and makes ion define more with electrolyte solution in lithium battery
Good organic whole, has the most also reached to increase the purpose of ion permeability, has finally improved the charge-discharge performance of battery, it is ensured that
The stability of lithium battery work, improves the performance of lithium battery, has good using value.
In sum, by the technique scheme of this novel practical, can improve the extension liquid ability of barrier film, heat stability and
Mechanical performance, improves the security performance of lithium battery.
This utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, no matter but in its shape or structure, make any change, every have same as the present application or phase
The technical scheme of approximation, within all falling within protection domain of the present utility model.
Claims (3)
1. low resistance ultra-high molecular weight polyethylene is combined a polyoxyethylene lithium battery diaphragm, including ultra high molecular polyethylene layer
(1), it is characterised in that the both sides of described ultra high molecular polyethylene layer (1) are all disposed with inorganic particles sublayer (2), polyoxy
Vinyl material layer (3), polyvinylidene fluoride material layer (4) and corona processing layer (5), described corona processing layer (5) is provided with recessed
Male structure (6).
A kind of low resistance ultra-high molecular weight polyethylene the most according to claim 1 is combined polyoxyethylene lithium battery diaphragm, its
Being characterised by, it is 12-38 μm that this low resistance ultra-high molecular weight polyethylene is combined the thickness of polyoxyethylene lithium battery diaphragm.
A kind of low resistance ultra-high molecular weight polyethylene the most according to claim 2 is combined polyoxyethylene lithium battery diaphragm, its
Being characterised by, described inorganic particles sublayer (2) is ceramic material, and the thickness of this inorganic particles sublayer (2) is 3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766920.9U CN205846085U (en) | 2016-07-20 | 2016-07-20 | A kind of low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766920.9U CN205846085U (en) | 2016-07-20 | 2016-07-20 | A kind of low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205846085U true CN205846085U (en) | 2016-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620766920.9U Expired - Fee Related CN205846085U (en) | 2016-07-20 | 2016-07-20 | A kind of low resistance ultra-high molecular weight polyethylene is combined polyoxyethylene lithium battery diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205846085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110306A (en) * | 2017-12-28 | 2018-06-01 | 泸州京泰电子科技有限公司 | Takeup type battery core |
-
2016
- 2016-07-20 CN CN201620766920.9U patent/CN205846085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110306A (en) * | 2017-12-28 | 2018-06-01 | 泸州京泰电子科技有限公司 | Takeup type battery core |
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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 |
Granted publication date: 20161228 Termination date: 20210720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |