CN206364097U - A kind of lithium battery dedicated ceramic barrier film - Google Patents
A kind of lithium battery dedicated ceramic barrier film Download PDFInfo
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- CN206364097U CN206364097U CN201621459384.4U CN201621459384U CN206364097U CN 206364097 U CN206364097 U CN 206364097U CN 201621459384 U CN201621459384 U CN 201621459384U CN 206364097 U CN206364097 U CN 206364097U
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- lithium battery
- barrier film
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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 a kind of lithium battery dedicated ceramic barrier film, belong to technical field of lithium batteries, have the advantages that to improve lithium battery fire protecting performance, its technical scheme is as follows, including Ranvier's membrane, the Ranvier's membrane two sides, which are set, ceramic material layer, wherein one layer of ceramic material layer surface is provided with zirconium oxide high temperature resistant heat insulation coating, another layer ceramic material layer surface is provided with melamine cyanurate alkyd resin layers, and the basic film edge is provided with chlorinated paraffin layer.
Description
Technical field
The utility model is related to technical field of lithium batteries, more particularly to a kind of lithium battery dedicated ceramic barrier film.
Background technology
With the continuous progress of modern science and technology, it is very universal that electronic equipment is used, and current electronic equipment substantially leads to
Cross lithium battery and carry out storage electric energy, be that electronic equipment is powered, such as：Cellular li-ion battery, flat board lithium battery, electric car lithium electricity
Pond, even dynamic lithium battery.
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 capacity, circulation and the security performance of battery, 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 for making battery is separated, and prevents the two poles of the earth from connecing
Touch and it is short-circuit, additionally with the function that can pass through electrolyte ion；Barrier film material is nonconducting, its physical chemistry
The performance of confrontation battery has a great impact；The species of battery is different, and the barrier film of use is also different；Barrier film of the prior art is set
Meter is often due to technology is not mature enough, and lithium battery has the fire protecting performance of very big deficiency, especially barrier film in terms of high temperature resistant
Not enough, barrier film easily produces burning, frequently results in the problem of lithium battery explodes.
Utility model content
The purpose of this utility model is to provide a kind of lithium battery dedicated ceramic barrier film, and it, which has, improves lithium battery fire protecting performance
Advantage.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of special pottery of lithium battery
Porcelain barrier film, including Ranvier's membrane, the Ranvier's membrane two sides, which are set, ceramic material layer, wherein one layer of ceramic material layer surface
Provided with zirconium oxide high temperature resistant heat insulation coating, another layer ceramic material layer surface is provided with melamine cyanurate alkyd resin
Layer, the basic film edge is provided with chlorinated paraffin layer.
By using above-mentioned technical proposal, zirconium oxide high temperature resistant heat insulation coating has with melamine cyanurate alkyd resin layers
There is good fire protection flame retarding effect, the Ranvier's membrane of inside can be effectively protected when inside battery produces naked light, so that effectively
Prevent flame from being spread along Ranvier's membrane, so that inside will not produce the naked light of large area, so that lithium battery will not continue
The larger thermal expansion effects of generation, so as to effectively prevent lithium battery from producing fire or even exploding, improve peace when using
Quan Xing, chlorinated paraffin layer effectively reduces the flammability of Ranvier's membrane, the flame retardant effect of Ranvier's membrane is improved, so that Ranvier's membrane energy
The effect of comprehensive raising fire-retardant fireproof, effectively raises the safety in utilization of lithium battery.
Further, by zirconium oxide high temperature resistant heat insulation coating, uniformly coating is formed the zirconium oxide high temperature resistant heat insulation coating.
By using above-mentioned technical proposal, the coating of zirconium oxide high temperature resistant heat insulation coating is uniform, effectively ensures each position
Fireproof flame-retardant effect it is identical, improve fire protection flame retarding effect, reduce resource waste.
Further, the zirconium oxide high temperature resistant heat insulation coating is 5um.
By using above-mentioned technical proposal, 5um zirconium oxide high temperature resistant heat insulation coating can effectively ensure flame retardant effect, and
Service life and the service life more than lithium battery, so as to reduce the waste of resource.
Further, the melamine cyanurate alkyd resin layers are uniform by melamine cyanurate phthalic resin coating
Coating is formed.
By using above-mentioned technical proposal, the coating of melamine cyanurate alkyd resin layers is uniform, effectively ensures each
The fireproof flame-retardant effect of position is identical, improves fire protection flame retarding effect, reduces the waste of resource.
Further, the melamine cyanurate alkyd resin layers thickness is 6um.
By using above-mentioned technical proposal, 6um melamine cyanurate alkyd resin layers can effectively ensure fire-retardant effect
Really, and service life and the service life more than lithium battery, so as to reduce the waste of resource.
Further, the Ranvier's membrane is PE films.
By using above-mentioned technical proposal, PE films have moisture resistance, heat resistance, tensile strength height, barrier strong.
Further, several through holes are evenly equipped with the Ranvier's membrane.
By using above-mentioned technical proposal, through hole can effectively raise the mobility of the electrolyte of lithium battery interior,
Improve the performance of lithium battery.
Further, the through hole is obliquely installed.
By using above-mentioned technical proposal, electrolyte carries out inclined flowing in Ranvier's membrane, so as to reduce to other paintings
The impact of layer, improves the service life of other coatings.
Further, the ceramic material layer is alumina layer.
By using above-mentioned technical proposal, changing aluminized coating has excellent heat-resisting quantity, can also be protected more than 180 degrees Celsius
Barrier film intact form is held, aluminum oxide coating layer can neutralize the HF dissociated in electrolyte, lift battery acid resistance, security is improved.
In summary, the utility model has the advantages that：
1st, with good fireproof flame-retardant effect, the generation of lithium battery combustion explosion is reduced；
2nd, flame-retardant layer service life is long, and flame retardant effect is effectively kept for a long time；
3rd, lithium battery integrated performance is high, and using effect is good, safe.
Brief description of the drawings
Fig. 1 is stereogram of the present utility model；
Fig. 2 is sectional view of the present utility model.
In figure, 1, Ranvier's membrane；11st, through hole；2nd, alumina layer；3rd, zirconium oxide high temperature resistant heat insulation coating；4th, cyanuric acid three
Poly cyanamid alkyd resin layers；5th, chlorinated paraffin layer.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of lithium battery dedicated ceramic barrier film, including Ranvier's membrane 1, Ranvier's membrane 1 are PE films, and PE films pass through dry method simple tension
Technique is made, and dry method simple tension technique is the method by producing hard elastic fibre, prepares the highly oriented PE of low-crystallinity
Film, then high annealing obtain the oriented film of high-crystallinity, and this film first carries out stretching and forms microdefect at low temperature, then
Defect is pulled open at high temperature, skewed through hole 11 is formed, electrolyte carries out inclined flowing in Ranvier's membrane 1, so that
Reduce to alumina layer 2, zirconium oxide high temperature resistant heat insulation coating 3, melamine cyanurate alkyd resin layers 4 impact, so as to carry
High alumina layer 2, zirconium oxide high temperature resistant heat insulation coating 3, the service life of melamine cyanurate alkyd resin layers 4, keep
The effect of preferable fire protection flame retarding, is increased to fire-resisting protection timeliness.
PE films two sides, which are set, ceramic material layer, and ceramic material layer is alumina layer 2, and alundum (Al2O3) is used as a kind of nothing
Machine thing, is the fine selection of battery diaphragm ceramic coating, particle size uniformity, energy with very high heat endurance and chemical inertness
It is adhered to well on barrier film, membrane pore size will not be blocked again；Aluminum oxide purity is high, it is impossible to introduce impurity, influences inside battery
Environment；The requirement of aluminum oxide crystalline structure, it is ensured that compatibility and wellability of the aluminum oxide to electrolyte；Aluminum oxide coating layer has excellent
Different heat-resisting quantity, can also keep barrier film intact form more than 180 degrees Celsius；Aluminum oxide coating layer, which can be neutralized in electrolyte, to dissociate
HF, lifted battery acid resistance, security improve；Nano aluminium oxide can form solid solution in lithium battery, improve it is forthright again and
Cycle performance；Nano-sized Alumina Powder has good imbibition and liquid-keeping property；The closed pore characteristic of polyalkene diaphragm is maintained, is kept away
Exempt from thermal runaway and cause potential safety hazard；Aluminum oxide coating layer increases micropore tortuosity, and self discharge is less than common diaphragm；Reduce and be circulated throughout
Mechanical micro-short circuit in journey, effectively lifts cycle life, the overall leaching forthright, good with heat-resisting quantity, high security, high power
Lubricant nature, unique automatic shutoff characteristic, low self-discharge rate, have extended cycle life.
The wherein one layer surface of alumina layer 2 is provided with the oxygen uniformly coated by existing zirconium oxide high temperature resistant heat insulation coating
Change zirconium high temperature resistant heat insulation coating 3, the thickness of zirconium oxide high temperature resistant heat insulation coating 3 is 5um, zirconium oxide be in itself a kind of high temperature resistant,
Corrosion-resistant, wear-resistant and low thermal coefficient of expansion inorganic non-metallic material, it has remarkable heat-resisting heat-insulating property, passes through coating
Auxiliary agent has been mixed to form with high temperature, corrosion-resistant, wear-resistant and low thermal coefficient of expansion zirconium oxide high temperature resistant heat insulation coating, is had
Heat-insulating flame-retardant fireproof effect, is effectively protected PE films, prevents PE films from burning, so as to effectively prevent flame from entering along PE films
Row spreads, so that inside will not produce the naked light of large area, so that the larger thermal expansion that produces that lithium battery will not continue is imitated
Really, so as to effectively prevent lithium battery from producing fire or even exploding, security when using is improved.
Another layer of surface of alumina layer 2 is provided with uniformly to be coated by existing melamine cyanurate phthalic resin coating and formed
Melamine cyanurate alkyd resin layers 4, the thickness of melamine cyanurate alkyd resin layers 4 be 6um, cyanuric acid melamine
Amine phthalic resin coating is by alkyd resin, melamine cyanurate, OPE, polyamide wax, silica, isothiazole
Quinoline ketone is mixed, with good flame resistance, steady quality, anti-scraping, anticorrosion, period of storage length, it is safe the characteristics of, have
The effect for improving fire-retardant fireproof of effect, and will not be by electrolytic corrosion, the prolonged retention performance of energy will not be ground by electrode
Damage, effectively raise service life.
PE film edges provided with chlorinated paraffin layer 5, chlorinated paraffin is thick liquid, it is non-ignitable, do not explode, volatility it is atomic, PE
The reduction flammability of film effectively improves the flame retardant effect of PE film edges.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (9)
1. a kind of lithium battery dedicated ceramic barrier film, including Ranvier's membrane (1), two sides are set the Ranvier's membrane (1) ceramic material
Layer, it is characterized in that：Wherein one layer ceramic material layer surface is provided with zirconium oxide high temperature resistant heat insulation coating (3), described in another layer
Ceramic material layer surface is provided with melamine cyanurate alkyd resin layers (4), and Ranvier's membrane (1) edge is provided with chlorinated paraffin layer
(5)。
2. a kind of lithium battery dedicated ceramic barrier film according to claim 1, it is characterized in that：The zirconium oxide high temperature resistant heat insulation
By zirconium oxide high temperature resistant heat insulation coating, uniformly coating is formed coating (3).
3. a kind of lithium battery dedicated ceramic barrier film according to claim 2, it is characterized in that：The zirconium oxide high temperature resistant heat insulation
Coating (3) is 5um.
4. a kind of lithium battery dedicated ceramic barrier film according to claim 1, it is characterized in that：The melamine cyanurate alcohol
By melamine cyanurate phthalic resin coating, uniformly coating is formed acid resin layer (4).
5. a kind of lithium battery dedicated ceramic barrier film according to claim 4, it is characterized in that：The melamine cyanurate alcohol
Acid resin layer (4) thickness is 6um.
6. a kind of lithium battery dedicated ceramic barrier film according to claim 1, it is characterized in that：The Ranvier's membrane (1) is PE films.
7. a kind of lithium battery dedicated ceramic barrier film according to claim 6, it is characterized in that：It is uniform on the Ranvier's membrane (1)
There are several through holes (11).
8. a kind of lithium battery dedicated ceramic barrier film according to claim 7, it is characterized in that：The through hole (11) tilts and set
Put.
9. a kind of lithium battery dedicated ceramic barrier film according to claim 1, it is characterized in that：The ceramic material layer is oxidation
Aluminium lamination (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621459384.4U CN206364097U (en) | 2016-12-28 | 2016-12-28 | A kind of lithium battery dedicated ceramic barrier film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621459384.4U CN206364097U (en) | 2016-12-28 | 2016-12-28 | A kind of lithium battery dedicated ceramic barrier film |
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| Publication Number | Publication Date |
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| CN206364097U true CN206364097U (en) | 2017-07-28 |
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| CN201621459384.4U Active CN206364097U (en) | 2016-12-28 | 2016-12-28 | A kind of lithium battery dedicated ceramic barrier film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108520935A (en) * | 2018-04-13 | 2018-09-11 | 河南省超霸新能源科技有限公司 | A kind of anti-shrink lithium battery diaphragm |
| CN110364685A (en) * | 2019-06-05 | 2019-10-22 | 江西力能新能源科技有限公司 | A kind of preparation method of the electrodes of lithium-ion batteries of the coating containing organic matter |
-
2016
- 2016-12-28 CN CN201621459384.4U patent/CN206364097U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108520935A (en) * | 2018-04-13 | 2018-09-11 | 河南省超霸新能源科技有限公司 | A kind of anti-shrink lithium battery diaphragm |
| CN110364685A (en) * | 2019-06-05 | 2019-10-22 | 江西力能新能源科技有限公司 | A kind of preparation method of the electrodes of lithium-ion batteries of the coating containing organic matter |
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