CN202905832U - Ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance - Google Patents
Ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance Download PDFInfo
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- CN202905832U CN202905832U CN201220497431XU CN201220497431U CN202905832U CN 202905832 U CN202905832 U CN 202905832U CN 201220497431X U CN201220497431X U CN 201220497431XU CN 201220497431 U CN201220497431 U CN 201220497431U CN 202905832 U CN202905832 U CN 202905832U
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- polyoxyethylene
- lithium battery
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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 ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance. The lithium battery diagram comprises an ultrahigh molecular polyethylene layer, polyoxyethylene material layers and polyvinylidene fluoride material layers. The polyoxyethylene material layers are arranged on both sides of the ultrahigh molecular polyethylene layer. The polyoxyethylene material layer is provided with the polyvinylidene fluoride material layer. According to the ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance provided by the utility model, the lithium battery diagram prepared by the ultrahigh molecular weight polyethylene material has good corrosion resistance and high temperature resistance in use, and stable using characteristic in the corrosive environment of the corrosion of the battery and temperature change in use can be maintained, so that the using stability of the battery is improved, and the battery performance is improved. A polyoxyethylene hydrophilic material layer and a polyvinylidene fluoride material layer are arranged on the surface, so that the hydrophilism of the diagram surface is improved, the impedance between the materials is reduced, and lithium-ions are conducted by electrolyte in an assistant manner.
Description
Technical field
The utility model belongs to polymeric material field, relates in particular to the compound polyoxyethylene lithium battery diaphragm of a kind of low resistance ultra-high molecular weight polyethylene.
Background technology
Ultra-high molecular weight polyethylene is called for short UHMWPE, English name ultra-high molecular weight polyethylene.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 UHMEPE 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, has unrivaled wear-resisting, shock-resistant, the self-lubricating of common polythene and other engineering plastics, corrosion-resistant, impact-absorbing energy, low temperature resistant, the combination property such as 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, and except hydrophily was not good, every characteristic of ultra-high molecular weight polyethylene all was applicable to 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 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 the compound polyoxyethylene lithium battery diaphragm of a kind of low resistance ultra-high molecular weight polyethylene, be intended to solve the resistance between barrier film and the electrode of can not reducing well that exists in the existing lithium battery diaphragm, and 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, less stable is unfavorable for the problem that the long-term stability of battery is used.
The purpose of this utility model is to provide a kind of low resistance ultra-high molecular weight polyethylene compound polyoxyethylene lithium battery diaphragm, and described lithium battery diaphragm comprises: ultra high molecular polyethylene layer, polyoxyethylene material layer, polyvinylidene fluoride material layer; Described ultra high molecular polyethylene layer both sides are provided with described polyoxyethylene material layer, are provided with described polyvinylidene fluoride material layer on the described polyoxyethylene material layer.
Further, the thickness of described ultra high molecular polyethylene barrier film is 12-38 μ m.
The compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene of the present utility model, this lithium battery diaphragm comprises: ultra high molecular polyethylene layer, polyoxyethylene material layer, polyvinylidene fluoride material layer; Ultra high molecular polyethylene layer both sides are provided with the polyoxyethylene material layer, are provided with the polyvinylidene fluoride material layer on the polyoxyethylene material layer.The compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene of the present utility model, use the ultra high molecular polyethylene material to make lithium battery diaphragm and have in use good corrosion-resistant and resistance to elevated temperatures, keep stable operating characteristic in the corrosive environment of electrolyte that can be in battery and the variations in temperature when using, thereby prolonged the stability of the use of battery, improved battery performance, and polyoxyethylene water wetted material layer and polyvinylidene fluoride material layer are set on the surface, improved the hydrophily of membrane surface, reduced the storeroom impedance and assisted electrolyte conducting lithium ion.
Description of drawings
Fig. 1 is the structural representation of the compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene that provides of the utility model.
Among the figure: 1, ultra high molecular polyethylene layer; 2, polyoxyethylene material layer; 3, polyvinylidene fluoride material layer.
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 low resistance ultra-high molecular weight polyethylene compound polyoxyethylene lithium battery diaphragm, and this lithium battery diaphragm comprises: ultra high molecular polyethylene layer, polyoxyethylene material layer, polyvinylidene fluoride material layer; Ultra high molecular polyethylene layer both sides are provided with the polyoxyethylene material layer, are provided with the polyvinylidene fluoride material layer on the polyoxyethylene material layer.
As the prioritization scheme of the utility model embodiment, the thickness of ultra high molecular polyethylene barrier film is 12-38 μ m.
Referring to accompanying drawing 1, the compound polyoxyethylene lithium battery diaphragm of the utility model low resistance ultra-high molecular weight polyethylene is described in further detail.
As shown in Figure 1, the compound polyoxyethylene lithium battery diaphragm of a kind of low resistance ultra-high molecular weight polyethylene of the utility model, mainly comprise ultra high molecular polyethylene layer 1, up and down two side external surfaces of this ultra high molecular polyethylene layer 1 are respectively equipped with polyoxyethylene (PE0) material layer 2, are provided with polyvinylidene fluoride material layer 3 in polyoxyethylene (PE0) material layer 2 outsides; The thickness of ultra high molecular polyethylene barrier film is 12-38 μ m.
The compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene of the present utility model, this lithium battery diaphragm comprises: ultra high molecular polyethylene layer, polyoxyethylene material layer, polyvinylidene fluoride material layer; Ultra high molecular polyethylene layer both sides are provided with the polyoxyethylene material layer, are provided with the polyvinylidene fluoride material layer on the polyoxyethylene material layer.The compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene of the present utility model, use the ultra high molecular polyethylene material to make lithium battery diaphragm and have in use good corrosion-resistant and resistance to elevated temperatures, keep stable operating characteristic in the corrosive environment of electrolyte that can be in battery and the variations in temperature when using, thereby prolonged the stability of the use of battery, improved battery performance, and polyoxyethylene water wetted material layer and polyvinylidene fluoride material layer are set on the surface, improved the hydrophily of membrane surface, reduced the storeroom impedance and assisted electrolyte conducting lithium ion.
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 (2)
1. the compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene is characterized in that described lithium battery diaphragm comprises: ultra high molecular polyethylene layer, polyoxyethylene material layer, polyvinylidene fluoride material layer;
Described ultra high molecular polyethylene layer both sides are provided with described polyoxyethylene material layer, are provided with described polyvinylidene fluoride material layer on the described polyoxyethylene material layer.
2. the compound polyoxyethylene lithium battery diaphragm of low resistance ultra-high molecular weight polyethylene as claimed in claim 1 is characterized in that, the thickness of described ultra high molecular polyethylene barrier film is 12-38 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220497431XU CN202905832U (en) | 2012-09-24 | 2012-09-24 | Ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220497431XU CN202905832U (en) | 2012-09-24 | 2012-09-24 | Ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905832U true CN202905832U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220497431XU Expired - Fee Related CN202905832U (en) | 2012-09-24 | 2012-09-24 | Ultrahigh molecular weight polyethylene composite polyoxyethylene lithium battery diagram with low resistance |
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| CN (1) | CN202905832U (en) |
Cited By (1)
| 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 |
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2012
- 2012-09-24 CN CN201220497431XU patent/CN202905832U/en not_active Expired - Fee Related
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 |
| 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 |
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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: 20130424 Termination date: 20180924 |