CN208315655U - The membrane configuration of lighium polymer model airplane battery - Google Patents
The membrane configuration of lighium polymer model airplane battery Download PDFInfo
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- CN208315655U CN208315655U CN201820852703.0U CN201820852703U CN208315655U CN 208315655 U CN208315655 U CN 208315655U CN 201820852703 U CN201820852703 U CN 201820852703U CN 208315655 U CN208315655 U CN 208315655U
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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 membrane configuration of lighium polymer model airplane battery, the lighium polymer model airplane battery includes positive diaphragm, cathode membrane and the membrane configuration being isolated between the anode diaphragm and cathode membrane, the anode diaphragm, cathode membrane and membrane configuration three are rolled into circle and form blocky battery core, anode electrode piece is stretched out on the top of the anode diaphragm, negative electricity pole piece is stretched out on the top of the cathode membrane, external in battery core coats aluminium film, the diaphragm is multi-layer compound structure, including apertured polymeric film, first gelatinization microporous polymer membranes, second gelatinization microporous polymer membranes, First Transition interface, second transition interface.The diaphragm of the utility model uses multi-layer compound structure, in the constant situation of thickness for maintaining conventional monolayers diaphragm, increases the elastic extensibility of film, and film layer has hole, and ion permeability is big, and high efficiency insulation does not react with electrolyte and electrode.
Description
Technical field
The utility model relates to field of batteries technologies, refer in particular to a kind of membrane configuration of lighium polymer model airplane battery.
Background technique
Lithium battery diaphragm is a kind of porous type plastic film, and diaphragm is thinner, porosity is higher, and the internal resistance of battery is smaller, high
Multiplying power discharging property is better.General diaphragm includes several classes such as weaving film, nowoven membrane (non-woven fabrics), microporous barrier and laminate.
Since polyolefine material has the characteristics that excellent mechanical property, chemical stability and relatively inexpensive, the lithium electricity being commercialized at present
Pond diaphragm is mainly MIcroporous polyolefin film, including polyethylene (PE) monofilm, polypropylene (PP) monofilm.Existing PP diaphragm closes
Hole temperature is higher, while fusing-off temperature is also very high；The closed pore temperature and fusing-off temperature of PE diaphragm are all lower.Fusing-off temperature refers to
This temperature or more, diaphragm melt contraction completely, and electrode interior short circuit generates high temperature, cause battery to disintegrate even and explode.Therefore,
The safety of lithium battery is usually required that with lower closed pore temperature and higher fusing-off temperature.
Therefore, it is necessary to those skilled in the art to develop multilayer complex films, to combine polyethylene (PE) monofilm, polypropylene
(PP) the advantages of monofilm.And it is big to need to solve existing MULTILAYER COMPOSITE film thickness, hard, not soft enough, is fabricated to battery
After become large-sized, the technical problems such as cannot satisfy the use demand.In addition, bonding force between the film and film of existing multilayer complex films
Difference is easy to fall off.
Utility model content
In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of lithium polymerization
The membrane configuration of object model airplane battery, uses multi-layer compound structure, in the constant situation of thickness for maintaining conventional monolayers diaphragm, increases
The elastic extensibility of film is added, and film layer has hole, ion permeability is big, and high efficiency insulation is not sent out with electrolyte and electrode
Raw reaction, thus overcome the deficiencies in the prior art.
To achieve the above object, the utility model is using following technical solution:
A kind of membrane configuration of lighium polymer model airplane battery, the lighium polymer model airplane battery include positive diaphragm, negative electrode film
Piece and the membrane configuration being isolated between the anode diaphragm and cathode membrane, the anode diaphragm, cathode membrane and membrane configuration three
Person is rolled into circle and forms blocky battery core, and anode electrode piece is stretched out on the top of the anode diaphragm, and cathode is stretched out on the top of the cathode membrane
Electrode slice, external in battery core coat aluminium film, and the diaphragm is multi-layer compound structure, including apertured polymeric film and are compound in this
The first gelatinization microporous polymer membranes and the second gelatinization microporous polymer membranes on apertured polymeric film two sides, the first gelatinization micropore are poly-
First Transition interface, the second gelatinization microporous polymer membranes and apertured polymeric film are formed between compound film and apertured polymeric film
Between form the second transition interface.
As a preferred embodiment, the apertured polymeric film polyethylene film, with a thickness of 0.012mm.
As a preferred embodiment, the first gelatinization microporous polymer membranes and the second gelatinization microporous polymer membranes are poly-
Propylene film, with a thickness of 0.008mm.
As a preferred embodiment, the density of the apertured polymeric film is less than the first gelatinization microporous polymer membranes and the
The density of two gelatinization microporous polymer membranes.
As a preferred embodiment, the aluminium film with a thickness of 100 μm.
As a preferred embodiment, the aluminium film is multilayer complex films, is used to be bonded PP layer, the outside of battery core including inside
Aluminium foil layer between the PP layers and the nylon layer of nylon layer, boundary.
The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology
Scheme as the diaphragm of isolation electrode, avoids the two poles of the earth it is found that the membrane configuration of the utility model is disposed between the two poles of the earth whereby
On active material directly contact and cause internal short-circuit of battery, but diaphragm remains to that charged ion is allowed to pass through, to form access, this
The diaphragm of utility model is multi-layer compound structure, including apertured polymeric film, the first gelatinization microporous polymer membranes, the second gelatinization are micro-
Totally 5 layers of pore polymer film, First Transition interface, the second transition interface, in the constant situation of thickness for maintaining conventional monolayers diaphragm,
Increase the elastic extensibility of film, and film layer has hole, ion permeability is big, high efficiency insulation, not with electrolyte and electrode
It reacts, thus overcome the deficiencies in the prior art.
For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair
The utility model is described in detail.
Detailed description of the invention
Fig. 1 is the wiring schematic diagram of the lighium polymer model airplane battery mould group of the embodiment of the utility model.
Fig. 2 is the single lighium polymer model airplane battery schematic diagram of internal structure of the embodiment of the utility model.
Fig. 3 is the diaphragm cross-sectional view of the lighium polymer model airplane battery of the embodiment of the utility model.
Fig. 4 is the aluminium film cross-sectional view of the lighium polymer model airplane battery of the embodiment of the utility model.
Description of drawing identification:
10, positive diaphragm 20, cathode membrane
30, membrane configuration 31, apertured polymeric film
32, the first gelatinization microporous polymer membranes 33, the second gelatinization microporous polymer membranes
34, First Transition interface 35, the second transition interface
40, anode electrode piece 50, negative electricity pole piece
60, aluminium film 61, PP layer
62, nylon layer 63, aluminium foil layer.
Specific embodiment
Please refer to figs. 1 to 4, that show the specific structures of the preferred embodiment of the utility model, are a kind of
The membrane configuration of lighium polymer model airplane battery, the lighium polymer model airplane battery include positive diaphragm 10, cathode membrane 20 and isolation
Membrane configuration 30 between the anode diaphragm 10 and cathode membrane 20, the anode diaphragm 10, cathode membrane 20 and membrane configuration
30 threes are rolled into circle and form blocky battery core, and anode electrode piece 40, the top of the cathode membrane 20 are stretched out in the top of the anode diaphragm 10
Negative electricity pole piece 50 is stretched out at end, and external in battery core coats aluminium film 60, lithium polymer battery can be formed, by multiple such electricity
Pond stitches and fastens reuse circuit and is attached, and model airplane battery can be made.
Wherein, the diaphragm is multi-layer compound structure, including apertured polymeric film 31 and is compound in the apertured polymeric film
The first gelatinization microporous polymer membranes 32 and the second gelatinization microporous polymer membranes 33 on 31 two sides, the first gelatinization microporous polymer membranes
First Transition interface 34, the second gelatinization microporous polymer membranes 33 and porous polymer are formed between 32 and apertured polymeric film 31
The second transition interface 35 is formed between film 31.Wherein, 31 polyethylene film of apertured polymeric film, with a thickness of 0.012mm.It is described
First gelatinization microporous polymer membranes 32 and the second gelatinization microporous polymer membranes 33 are polypropylene screen, with a thickness of 0.008mm.So that
The integral thickness of diaphragm is about 0.028mm, and in the constant situation of thickness for maintaining conventional monolayers diaphragm, the elasticity for increasing film is prolonged
Malleability, and film layer has hole, and ion permeability is big, and high efficiency insulation does not react with electrolyte and electrode, to overcome
The deficiencies in the prior art.
The density of the apertured polymeric film 31 is less than the first gelatinization microporous polymer membranes 32 and the second gelatinization micropore is poly-
The density of compound film 33.That is the hole of apertured polymeric film 31 is more, and aperture is bigger, and the first gelatinization microporous polymer membranes 32 and
The aperture of two gelatinization microporous polymer membranes 33 is smaller, and the quantity in hole is also reduced.First gelatinization microporous polymer membranes 32 and the second glue
Changing microporous polymer membranes 33 has viscosity, can be bonded between positive diaphragm 10 and cathode membrane.
The First Transition interface 34 and the second transition interface 35 are ceramic bonding layer, and such ceramic bonding layer not only has
Micropore also has stronger adhesive force, prevents apertured polymeric film 31, the first gelatinization microporous polymer membranes 32, the first gelatinization micro-
Pore polymer film 32 falls off.
The aluminium film 60 with a thickness of 100 μm.The aluminium film 60 is multilayer complex films, including inside for being bonded battery core
The aluminium foil layer 63 of PP layer 61, the nylon layer 62 in outside, boundary between the PP layer 61 and the nylon layer 62.In this way, the cause of PP layer 61
Chemical substance in battery core can be effectively isolated by close structure, avoid leaking.In addition, aluminium foil layer 63 also has other than isolation
Standby high-efficiency heat conduction heat sinking function and function of shielding, have resistance to acid and alkali, prevent from being corroded.Outside increases nylon layer 62, can be with
Extend the service life of battery, increases the pull resistance of aluminium film 60, avoid hitting resistance to rupture.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change
Change and modify, is still within the scope of the technical solutions of the present invention.
Claims (7)
1. a kind of membrane configuration of lighium polymer model airplane battery, which includes positive diaphragm, cathode membrane
And the membrane configuration being isolated between the anode diaphragm and cathode membrane, the anode diaphragm, cathode membrane and membrane configuration three
It is rolled into circle and forms blocky battery core, anode electrode piece is stretched out on the top of the anode diaphragm, and negative electricity is stretched out on the top of the cathode membrane
Pole piece, external in battery core coat aluminium film, it is characterised in that: the diaphragm is multi-layer compound structure, including apertured polymeric film
With the first gelatinization microporous polymer membranes and the second gelatinization microporous polymer membranes that are compound in the apertured polymeric film two sides, this first
First Transition interface, the second gelatinization microporous polymer membranes and more are formed between gelatinization microporous polymer membranes and apertured polymeric film
The second transition interface is formed between pore polymer film.
2. the membrane configuration of lighium polymer model airplane battery according to claim 1, it is characterised in that: the porous polymer
Film is polyethylene film, with a thickness of 0.012mm.
3. the membrane configuration of lighium polymer model airplane battery according to claim 1, it is characterised in that: first gelatinization is micro-
Pore polymer film and the second gelatinization microporous polymer membranes are polypropylene screen, with a thickness of 0.008mm.
4. the membrane configuration of lighium polymer model airplane battery according to claim 1, it is characterised in that: the porous polymer
The density of film is less than the density of the first gelatinization microporous polymer membranes and the second gelatinization microporous polymer membranes.
5. the membrane configuration of lighium polymer model airplane battery according to claim 1, it is characterised in that: First Transition circle
Face and the second transition interface are ceramic bonding layer.
6. the membrane configuration of lighium polymer model airplane battery according to claim 1, it is characterised in that: the thickness of the aluminium film
It is 100 μm.
7. the membrane configuration of lighium polymer model airplane battery according to claim 6, it is characterised in that: the aluminium film is multilayer
Composite membrane is used to be bonded PP layer, the aluminium foil of the nylon layer in outside, boundary between the PP layers and the nylon layer of battery core including inside
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852703.0U CN208315655U (en) | 2018-06-04 | 2018-06-04 | The membrane configuration of lighium polymer model airplane battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852703.0U CN208315655U (en) | 2018-06-04 | 2018-06-04 | The membrane configuration of lighium polymer model airplane battery |
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| Publication Number | Publication Date |
|---|---|
| CN208315655U true CN208315655U (en) | 2019-01-01 |
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| CN201820852703.0U Active CN208315655U (en) | 2018-06-04 | 2018-06-04 | The membrane configuration of lighium polymer model airplane battery |
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2018
- 2018-06-04 CN CN201820852703.0U patent/CN208315655U/en active Active
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