CN209282284U - A kind of compound lithium ion battery separator structure - Google Patents
A kind of compound lithium ion battery separator structure Download PDFInfo
- Publication number
- CN209282284U CN209282284U CN201822112994.2U CN201822112994U CN209282284U CN 209282284 U CN209282284 U CN 209282284U CN 201822112994 U CN201822112994 U CN 201822112994U CN 209282284 U CN209282284 U CN 209282284U
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- Prior art keywords
- layer
- resistant coating
- erosion resistant
- pasted
- lithium ion
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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 compound lithium ion battery separator structures, including septum body, septum body includes the first erosion resistant coating, the side of first erosion resistant coating is pasted with insulating layer, the side of insulating layer is pasted with strength layer, the side of strength layer is pasted with heat-sink shell, the side of heat-sink shell is pasted with oxygen absorption layer, the side of oxygen absorption layer is pasted with the second erosion resistant coating, the side of second erosion resistant coating is pasted with moisturizing layer, moisturizing layer is in contact with the electrolyte of inside lithium ion cell, a kind of compound lithium ion battery separator structure of the utility model, pass through the first erosion resistant coating of setting and the second erosion resistant coating, it can protect inside and outside septum body, by the way that oxygen absorption layer is arranged, the oxygen that positive polar decomghtion generates can be absorbed, prevent anode from producing thermal runaway caused by oxygen, by the way that moisturizing layer is arranged, when the electrolyte of inside lithium ion cell is very few, it can To absorb the electrolyte inside moisturizing layer, guarantee the concentration of lithium-ion battery electrolytes.
Description
Technical field
The utility model relates to a kind of lithium ion battery separator structure, in particular to a kind of compound lithium ion battery separator
Structure.
Background technique
In the structure of lithium battery, diaphragm is crucial one of interior layer assembly.For lithium battery series, since electrolyte is
Organic solvent system, thus need the diaphragm material of organic solvent-resistant, the performance of diaphragm determine the interfacial structure of battery, interior
Resistance etc., directly affects the characteristics such as capacity, circulation and the security performance of battery, and the diaphragm haveing excellent performance is to the synthesis for improving battery
Performance plays an important role.The main function of diaphragm is to separate the positive and negative electrode of battery, prevent the two poles of the earth contact and it is short
Road additionally has the function of electrolyte ion capable of being made to pass through.Diaphragm material be it is nonconducting, physicochemical properties are to battery
Performance have a great impact.The type of battery is different, and the diaphragm of use is also different.For lithium battery series, due to electrolyte
For organic solvent system, thus the diaphragm material of organic solvent-resistant is needed, but existing diaphragm is anticorrosive, heat-insulated and strong
The performances such as degree are poor.
Utility model content
The purpose of this utility model is to provide a kind of compound lithium ion battery separator structures, to solve above-mentioned background skill
The poor problems of performances such as anticorrosive, the heat-insulated and intensity of the existing diaphragm proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of compound lithium ion battery separator knot
Structure, including septum body, the septum body are prevented including the first erosion resistant coating, insulating layer, strength layer, heat-sink shell, oxygen absorption layer, second
Rotten layer and moisturizing layer, the side of first erosion resistant coating are pasted with insulating layer, and the side of the insulating layer is pasted with strength layer, institute
The side for stating strength layer is pasted with heat-sink shell, and the side of the heat-sink shell is pasted with oxygen absorption layer, and the side of the oxygen absorption layer is pasted
There is the second erosion resistant coating, the side of second erosion resistant coating is pasted with moisturizing layer, the electricity of the moisturizing layer and inside lithium ion cell
Solve liquid phase contact.
As a kind of optimal technical scheme of the utility model, first erosion resistant coating and the second erosion resistant coating are by polyurethane
Material is made, and the insulating layer is made of polythene material, and the strength layer is made of polyvinyl resin material, the heat-sink shell
It is made of heat absorption glue material, the oxygen absorption layer is made of aminobenzene methylamine material, and the moisturizing layer is made of acetate fiber material.
As a kind of optimal technical scheme of the utility model, first erosion resistant coating and the second erosion resistant coating with a thickness of
100-120 μm, the insulating layer with a thickness of 110-125 μm, 500-600 μm of the thickness of the strength layer, the heat-sink shell
With a thickness of 80-90 μm, the oxygen absorption layer with a thickness of 85-100 μm, the moisturizing layer with a thickness of 90-110 μm.
As a kind of optimal technical scheme of the utility model, it is logical that the membranous wall of the septum body offers several ions
Hole.
As a kind of optimal technical scheme of the utility model, electrolyte is equipped in the interlayer of the moisturizing layer.
Compared with prior art, the utility model has the beneficial effects that a kind of compound lithium ion battery of the utility model
Membrane configuration can protect inside and outside septum body by setting the first erosion resistant coating and the second erosion resistant coating, can be improved every
Membrane body anti-corrosive properties can play the effect of insulation, by the way that strength layer is arranged, diaphragm sheet can be improved by the way that insulating layer is arranged
Body stretches and tearing strength, by setting heat-sink shell, the heat of lithium ion battery can be absorbed, improve the service life of battery,
By the way that oxygen absorption layer is arranged, the oxygen that positive polar decomghtion generates can be absorbed, prevents anode from producing thermal runaway caused by oxygen, passes through setting
The electrolyte inside moisturizing layer can be absorbed when the electrolyte of inside lithium ion cell is very few in moisturizing layer, guarantees lithium-ion electric
The concentration of pond electrolyte.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model septum body.
In figure: 1, septum body；2, the first erosion resistant coating；3, insulating layer；4, strength layer；5, heat-sink shell；6, oxygen absorption layer；7,
Two erosion resistant coatings；8, moisturizing layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
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 embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of compound lithium ion battery separator structure, including septum body referring to FIG. 1-2,
1, septum body 1 includes the first erosion resistant coating 2, insulating layer 3, strength layer 4, heat-sink shell 5, oxygen absorption layer 6, the second erosion resistant coating 7 and moisturizing
Layer 8, the side of the first erosion resistant coating 2 are pasted with insulating layer 3, and the side of insulating layer 3 is pasted with strength layer 4, and the side of strength layer 4 is viscous
Heat-sink shell 5 is posted, the side of heat-sink shell 5 is pasted with oxygen absorption layer 6, and the side of oxygen absorption layer 6 is pasted with the second erosion resistant coating 7, and second is anti-
The side of rotten layer 7 is pasted with moisturizing layer 8, and moisturizing layer 8 is in contact with the electrolyte of inside lithium ion cell.
Preferably, the first erosion resistant coating 2 and the second erosion resistant coating 7 are made of polyurethane material, and insulating layer 3 is by polythene material
It is made, strength layer 4 is made of polyvinyl resin material, and heat-sink shell 5 is made of heat absorption glue material, and oxygen absorption layer 6 is by aminobenzene methylamine
Material is made, and moisturizing layer 8 is made of acetate fiber material, improves the anti-corrosive properties of septum body 1, intensity and the performances such as heat-insulated.
Preferably, the first erosion resistant coating 2 and the second erosion resistant coating 7 with a thickness of 100-120 μm, insulating layer 3 with a thickness of 110-
125 μm, 500-600 μm of the thickness of strength layer 4, heat-sink shell 5 with a thickness of 80-90 μm, oxygen absorption layer 6 with a thickness of 85-100 μm,
Moisturizing layer 8 with a thickness of 90-110 μm, limit septum body 1 thickness.
Preferably, the membranous wall of septum body 1 offers several ion through-holes, passes through diaphragm convenient for the ion in electrolyte
Ontology 1.
Preferably, it is equipped with electrolyte in the interlayer of moisturizing layer 8, maintains the capacity of inside lithium ion cell electrolyte.
When specifically used, a kind of compound lithium ion battery separator structure of the utility model, the first erosion resistant coating 2 and second is prevented
Rotten layer 7 can protect inside and outside septum body 1, and 1 anti-corrosive properties of septum body can be improved, and insulating layer 3 can play insulation
Effect, strength layer 4 is made of polyvinyl resin material, and septum body 1 can be improved and stretch and tearing strength, heat-sink shell 5 can
To absorb the heat of lithium ion battery, the service life of battery is improved, oxygen absorption layer 6 can absorb the oxygen that positive polar decomghtion generates,
Prevent anode from producing thermal runaway caused by oxygen, there is electrolyte in the inside of moisturizing layer 8, when the electrolyte of inside lithium ion cell is very few
When, the electrolyte inside moisturizing layer 8 can be absorbed, guarantee the concentration of lithium-ion battery electrolytes.
In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.
In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as instruction or
It implies relative importance or implicitly indicates the quantity of indicated technical characteristic, define " first ", " second ", " the as a result,
Three ", the feature of " the 4th " can explicitly or implicitly include at least one of the features.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu
Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of compound lithium ion battery separator structure, including septum body (1), which is characterized in that the septum body (1)
Including the first erosion resistant coating (2), insulating layer (3), strength layer (4), heat-sink shell (5), oxygen absorption layer (6), the second erosion resistant coating (7) and moisturizing
Layer (8), the side of first erosion resistant coating (2) are pasted with insulating layer (3), and the side of the insulating layer (3) is pasted with strength layer
(4), the side of the strength layer (4) is pasted with heat-sink shell (5), and the side of the heat-sink shell (5) is pasted with oxygen absorption layer (6), institute
The side for stating oxygen absorption layer (6) is pasted with the second erosion resistant coating (7), and the side of second erosion resistant coating (7) is pasted with moisturizing layer (8),
The moisturizing layer (8) is in contact with the electrolyte of inside lithium ion cell.
2. a kind of compound lithium ion battery separator structure according to claim 1, it is characterised in that: first anti-corrosion
Layer (2) and the second erosion resistant coating (7) are made of polyurethane material, and the insulating layer (3) is made of polythene material, the intensity
Layer (4) is made of polyvinyl resin material, and the heat-sink shell (5) is made of heat absorption glue material, and the oxygen absorption layer (6) is by aminobenzene
Methylamine material is made, and the moisturizing layer (8) is made of acetate fiber material.
3. a kind of compound lithium ion battery separator structure according to claim 1, it is characterised in that: first anti-corrosion
Layer (2) and the second erosion resistant coating (7) with a thickness of 100-120 μm, the insulating layer (3) with a thickness of 110-125 μm, the intensity
Layer 500-600 μm of thickness of (4), the heat-sink shell (5) with a thickness of 80-90 μm, the oxygen absorption layer (6) with a thickness of 85-100
μm, the moisturizing layer (8) with a thickness of 90-110 μm.
4. a kind of compound lithium ion battery separator structure according to claim 1, it is characterised in that: the septum body
(1) membranous wall offers several ion through-holes.
5. a kind of compound lithium ion battery separator structure according to claim 1, it is characterised in that: the moisturizing layer
(8) electrolyte is equipped in interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822112994.2U CN209282284U (en) | 2018-12-17 | 2018-12-17 | A kind of compound lithium ion battery separator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822112994.2U CN209282284U (en) | 2018-12-17 | 2018-12-17 | A kind of compound lithium ion battery separator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282284U true CN209282284U (en) | 2019-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822112994.2U Expired - Fee Related CN209282284U (en) | 2018-12-17 | 2018-12-17 | A kind of compound lithium ion battery separator structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464955A (en) * | 2022-01-20 | 2022-05-10 | 合肥国轩高科动力能源有限公司 | Preparation method of oxygen absorption diaphragm for high-safety lithium ion battery |
-
2018
- 2018-12-17 CN CN201822112994.2U patent/CN209282284U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114464955A (en) * | 2022-01-20 | 2022-05-10 | 合肥国轩高科动力能源有限公司 | Preparation method of oxygen absorption diaphragm for high-safety lithium ion battery |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20190820 Termination date: 20211217 |