CN206040856U - Gel polymer lithium ion battery's preparation facilities - Google Patents
Gel polymer lithium ion battery's preparation facilities Download PDFInfo
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- CN206040856U CN206040856U CN201620491130.4U CN201620491130U CN206040856U CN 206040856 U CN206040856 U CN 206040856U CN 201620491130 U CN201620491130 U CN 201620491130U CN 206040856 U CN206040856 U CN 206040856U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a gel polymer lithium ion battery's preparation facilities, the device includes: electrolyte is equipped with in two first containers, gel electrolyte forerunner body fluid is equipped with in two second containers, it has anodal pole piece and negative pole pole piece to roll up respectively on two sets of first assembly pulleys, and during the rotation, drive anodal pole piece and the negative pole pole piece soaks in electrolyte, it has the diaphragm to roll up respectively on two sets of second assembly pulleys, during the rotation, drives the diaphragm and soaks into in gel electrolyte forerunner body fluid, anodal pole piece, diaphragm, negative pole pole piece and diaphragm after the squeeze roll will soak are in the same place according to the preface extrusion, winding device coils in order to carry out the battery equipment to the extrusion material. The device provided by the utility model be used for solving gel polymer lithium ion battery preparation facilities and preparation method among the prior art, because the infiltration pole piece that electrolyte can not be fine, and hot polymerization technique drawback is many, and the poor technical problem of battery reliability of existence has realized the technological effect of improvement battery reliability.
Description
Technical field
This utility model is related to cell manufacturing techniques field, more particularly to a kind of preparation of gel polymer lithium ion battery
Device.
Background technology
Lithium ion battery is because its energy density is big, running voltage is high, good cycling stability and the advantages of little self discharge effect,
It is widely used in consumption electronic product, electronic transport facility and clean energy resource energy-storage system.Traditional lithium ion battery
There is the hidden danger of the inflammable and easy leakage of organic electrolyte, be the main cause for causing lithium ion battery safety problem.With traditional lithium
Ion battery is compared, and does not have free fluid inside gel polymer lithium ion battery, is eliminated the hidden danger of leakage, is improve battery
Impact resistance, vibration, the performance of deformation, while greatly reducing battery there is combustion when discharge and recharge excessively, short circuit, acupuncture
The danger such as burning, blast, significantly improve the security performance of lithium ion battery.
At present, when prepared by gel polymer lithium ion battery, often using thermal polymerization process, i.e., by injecting electrolysis
Liquid, heated baking are caused using high temperature and are polymerized, obtains jelly glue polymer battery.However, existing preparation method, works as electrolyte
When can not be absorbed by perforated membrane in infiltrating battery well, it is easy to cause dead band so that battery performance is poor.And using heat
Cause polymerization technique there may be generation flatulence of heat type, tympanites due to heat phenomenon and affect battery performance, and heat polymerization be not usually very
Thoroughly, the monomer of residual can affect the chemical property of whole battery in turn.
That is, gel polymer lithium ion battery preparation facilitiess of the prior art, as electrolyte can not be fine
Infiltration pole piece, and thermal polymerization process drawback is more, therefore there is the technical problem of battery poor reliability.
Utility model content
This utility model solves prior art by providing a kind of preparation facilitiess of gel polymer lithium ion battery
In gel polymer lithium ion battery preparation facilitiess, as electrolyte can not infiltrate pole piece, and thermal polymerization process disadvantage well
End is more, therefore there is the technical problem of battery poor reliability.
For solving above-mentioned technical problem, this utility model provides following technical scheme：
A kind of preparation facilitiess of gel polymer lithium ion battery, including：
Container group, the container group include：Two the first containers and two second containers, fill in described two first containers
There is electrolyte；Gel electrolyte precursor liquid is housed in described two second containers；
Two groups of first pulley groups, in two groups of first pulley groups, volume has anode pole piece and cathode pole piece respectively；Described two
Part is located in two group of first container group first pulley group respectively, when two groups of first pulley groups are rotated, to drive
The anode pole piece and the cathode pole piece are infiltrated in the electrolyte；
Two groups of second pulley groups, in two groups of second pulley groups, volume has barrier film respectively；Two groups of second pulley components
Part is not located in two groups of second containers, when two groups of second pulley groups are rotated, to drive the barrier film described
Infiltrate in gel electrolyte precursor liquid；
Compression roller and coiler device, the compression roller are located between the container group and the coiler device, will infiltration
Rear anode pole piece, barrier film, cathode pole piece and barrier film sequentially press together, and form pressing material；And pass through the coiler device
The pressing material is wound to carry out battery assembling.
Optionally, described device also includes：Carry-over pinch rolls, the carry-over pinch rolls be located at two groups of second pulley groups and it is described squeeze
Between pressure roller；The carry-over pinch rolls and the membrane contacts, are moved at the compression roller with drawing the barrier film after infiltration.
Optionally, the outer surface of the compression roller is provided with macromolecular material polypropylene screen.
Optionally, the thickness of the macromolecular material polypropylene screen is 0.1cm-10cm.
Optionally, the preparation facilitiess also include：First controller, first controller and two groups of first pulleys
Group connection；First controller is connected with two groups of second pulley groups, to control two groups of first pulley groups and described
The rotating speed of two groups of second pulley groups is in the scope of 0.01r/min-10r/min.
Optionally, the preparation facilitiess also include：Second controller, the second controller are connected with the compression roller,
To control the scope of the rotating speed in 0.01r/min-10r/min of the compression roller, and the extruding force model for controlling the compression roller
Enclose the scope in 0.01N-30N.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
1st, anode pole piece and cathode pole piece are first infiltrated by device that the embodiment of the present application is provided in the electrolytic solution, and will be every
Film is infiltrated in gel electrolyte precursor liquid, then pole piece and barrier film is sequentially pressed together by compression roller, due to positive pole
Infiltration is processed in the electrolytic solution in advance for pole piece and cathode pole piece, on the one hand, avoid absorbing what is occurred less than electrolyte due to pole piece
Dead band, on the other hand, can be preferably compatible with the gel electrolyte on barrier film, it is not necessary to which thermal polymerization just can be by pole piece and barrier film
Press together, greatly improve the reliability of battery.
2nd, the device that the embodiment of the present application is provided, arranges carry-over pinch rolls and drives the barrier film for being coated with gel electrolyte precursor liquid
Motion, can prevent the dielectric film on barrier film to be subject to crushing in moving process, it is also possible to be supplied to the preferable tension force of barrier film so that
The thickness that gel electrolyte membrane is formed evenly, and then improves battery reliability.
3rd, the device that the embodiment of the present application is provided, arranges macromolecular material polypropylene screen in press roll surface so as to have
Suitable pressure and the elasticity of appropriateness, are conducive to protecting the loose structure containing the gel electrolyte membrane in liquid, protect the liquid of the inside
Body content is not extruded out, improves battery reliability；The roller of metal material can also be protected not to be corroded from an electrolyte.
Description of the drawings
For the technical scheme being illustrated more clearly that in this utility model embodiment, below will be to needed for embodiment description
Accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only embodiment of the present utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can with according to provide accompanying drawing obtain
Obtain other accompanying drawings.
Fig. 1 is the structure chart of the preparation facilitiess of gel polymer lithium ion battery in the embodiment of the present application；
Fig. 2 is the flow chart of the preparation method of gel polymer lithium ion battery in the embodiment of the present application.
Specific embodiment
The embodiment of the present application solves existing skill by providing a kind of preparation facilitiess of gel polymer lithium ion battery
Gel polymer lithium ion battery preparation facilitiess in art, as electrolyte can not infiltrate pole piece, and thermal polymerization process well
Drawback is more, the technical problem of the battery poor reliability for existing, and realizes the technique effect for improving battery reliability.
For solving above-mentioned technical problem, the general thought that the embodiment of the present application provides technical scheme is as follows：
The application provides a kind of preparation facilitiess of gel polymer lithium ion battery, including：
Container group, the container group include：Two the first containers and two second containers, fill in described two first containers
There is electrolyte；Gel electrolyte precursor liquid is housed in described two second containers；
Two groups of first pulley groups, in two groups of first pulley groups, volume has anode pole piece and cathode pole piece respectively；Described two
Part is located in two group of first container group first pulley group respectively, when two groups of first pulley groups are rotated, to drive
The anode pole piece and the cathode pole piece are infiltrated in the electrolyte；
Two groups of second pulley groups, in two groups of second pulley groups, volume has barrier film respectively；Two groups of second pulley components
Part is not located in two groups of second containers, when two groups of second pulley groups are rotated, to drive the barrier film described
Infiltrate in gel electrolyte precursor liquid；
Compression roller and coiler device, the compression roller are located between the container group and the coiler device, will infiltration
Rear anode pole piece, barrier film, cathode pole piece and barrier film sequentially press together, and form pressing material；And pass through the coiler device
The pressing material is wound to carry out battery assembling.
Anode pole piece and cathode pole piece are first infiltrated by device that the embodiment of the present application is provided in the electrolytic solution, and by barrier film
Infiltrate in gel electrolyte precursor liquid, then pole piece and barrier film are sequentially pressed together by compression roller, due to positive pole pole
Infiltration is processed in the electrolytic solution in advance for piece and cathode pole piece, on the one hand, avoid absorbing dead less than what electrolyte occurred due to pole piece
Area, on the other hand, can be preferably compatible with the gel electrolyte on barrier film, it is not necessary to which pole piece just can be squeezed by thermal polymerization with barrier film
Force together, greatly improve the reliability of battery.
In order to be better understood from above-mentioned technical proposal, above-mentioned technical proposal is carried out below in conjunction with specific embodiment
Describe in detail, it should be understood that the specific features in this utility model embodiment and embodiment are to the detailed of technical scheme
Thin explanation, rather than the restriction to technical scheme, in the case where not conflicting, the embodiment of the present application and embodiment
In technical characteristic can be mutually combined.
In the present embodiment, there is provided a kind of preparation facilitiess of gel polymer lithium ion battery, Fig. 1 is refer to, Fig. 1 is
The structure chart of the preparation facilitiess of gel polymer lithium ion battery in the embodiment of the present application, as shown in figure 1, described device includes：
Container group, the container group include：Two the first containers 1 and two second containers 2, described two first containers 1
In be equipped with electrolyte；Gel electrolyte precursor liquid is housed in described two second containers 2；
Two groups of first pulley groups 3, in two groups of first pulley groups 3, volume has anode pole piece 4 and cathode pole piece 5 respectively；Institute
Part is located in two group of first container 1, to rotate in two groups of first pulley groups 3 respectively to state two groups of first pulley groups 3
When, drive the anode pole piece 4 and the cathode pole piece 5 to infiltrate in the electrolyte；
Two groups of second pulley groups 6, in two groups of second pulley groups 6, volume has barrier film 7 respectively；Two groups of second pulley groups
6 are partly located in two groups of second containers 2 respectively, when two groups of second pulley groups 6 are rotated, to drive the barrier film 7
Infiltrate in the gel electrolyte precursor liquid；
Compression roller 8 and coiler device 9, the compression roller 8 are located between the container group and the coiler device 9, will
Anode pole piece 4, barrier film 7, cathode pole piece 5 and barrier film 7 after infiltration sequentially presses together, and forms pressing material；And by described
The pressing material of coiler device 9 pairs winds to carry out battery assembling.
Specifically, as the gel electrolyte for infiltrating formation on barrier film 7 is perforated membrane of the growth in situ in membrane surface
Structure, liquid content are high, are conducive to strengthening the ionic liquid phase transmission mechanism in gelatin polymer, improve ionic conductivity.And it is positive and negative
Pole piece is processed through electrolyte infiltration before battery assembling, good with the interface compatibility of gel electrolyte, be there is no thermal initiation and is gathered
The drawbacks of conjunction technique is present, eliminates traditional liquid injection process, and safe, process is simple is cost-effective, is adapted to industry metaplasia
Produce.
Below, describe the structure of the preparation facilitiess of the gel polymer lithium ion battery with reference to Fig. 1 in detail：
In specific implementation process, as shown in figure 1, two groups of first pulley groups 3 respectively part is located at described two groups the
In one container 1, so that when two groups of first pulley groups 3 are rotated, the electrolysis that the pole piece rolled up thereon can be entered in the first container 1
Liquid, to be infiltrated；Part is located in two groups of second containers 2 same two groups of second pulley groups 6 respectively, so that
When two groups of second pulley groups 6 are rotated, the gel electrolyte precursor liquid that the barrier film rolled up thereon can be entered in second container 2, with
Infiltrated.
In order to control the velocity of rotation of two groups of first pulley groups 3 and two groups of second pulley groups 6, institute can be set
Stating preparation facilitiess also includes：
First controller 10, first controller 10 are connected with two groups of first pulley groups 3；First controller
10 are connected with two groups of second pulley groups 6, to control two groups of first pulley groups 3 and two groups of second pulley groups 6
Rotating speed is in the scope of 0.01r/min-10r/min.
In the embodiment of the present application, described device also includes：
Carry-over pinch rolls 11, the carry-over pinch rolls 11 are located between two groups of second pulley groups 6 and the compression roller 8；It is described to lead
Pick-up roll 11 is contacted with the barrier film 7, is moved at the compression roller 8 with drawing the barrier film 7 after infiltration.
As shown in figure 1, can be provided with pulley on the carry-over pinch rolls 11, the carry-over pinch rolls 11 are led by pulley clamping
Draw the barrier film 7.
Specifically, carry-over pinch rolls 11 be set drive and be coated with the diaphragm movement of gel electrolyte precursor liquid, can prevent every
Dielectric film on film is subject to crushing in moving process, it is also possible to be supplied to the preferable tension force of barrier film so that gel electrolyte membrane
The thickness of formation evenly, and then improves battery reliability.
In the embodiment of the present application, first controller 10 can also be arranged also to be connected with the carry-over pinch rolls 11, to control
The scope of the velocity of rotation in 0.01r/min-10r/min of the carry-over pinch rolls 11 is made, with two groups of first pulley groups 3 and institute
Two groups of second pulley groups, 6 synchronized synchronous axial system is stated, so that barrier film 7 steadily can be moved.
In the embodiment of the present application, the compression roller of two wheels can be set as shown in Figure 1, it is also possible to arrange squeezing for four wheels
Pressure roller, this is not restricted.
In specific implementation process, the pressure of the extruding of compression roller 8 can not be too big, and the edge of compression roller 8 can not be metal
Gel electrolyte membrane structure is otherwise easily damaged by pressure by class material, and the liquid electrolyte composition of the inside is easily forced out, causing corrosion
Metal class compression roller.
Further, the outer surface of the compression roller 8 is provided with macromolecular material polypropylene screen.
Further, the thickness of the macromolecular material polypropylene screen is 0.1cm-10cm.
Specifically, by the came last layer thickness of compression roller 8 for 0.1-10cm macromolecular material polypropylene PP
Film, the film are corrosion-resistant, and with certain elasticity, can both produce certain pressure, four are firmly pressed together, and not
The structure of destruction film, can improve the energy density of battery and the interface impedance for reducing.
In the embodiment of the present application, the preparation facilitiess, also include：
Second controller 12, the second controller 12 are connected with the compression roller 8, to control turning for the compression roller 8
Scope of the speed in 0.01r/min-10r/min, and control the model of the extruding force scope in 0.01N-30N of the compression roller 8
Enclose.
In specific implementation process, described device can also include：
Temperature controller and temperature sensor, to control to manufacture temperature during battery；
Pressure gauge, to control to manufacture air pressure during battery；
Alarm device, with when temperature or pressure exceed preset range, output alarm signal is reminding user；
Power supply, to provide power as described device, saves human cost.
Next, introducing the preparation method for manufacturing gel polymer lithium ion battery using described device, Fig. 2 is refer to,
Fig. 2 is the flow chart of the preparation method of gel polymer lithium ion battery in the embodiment of the present application, as shown in Fig. 2 methods described
Including：
Step S201, anode pole piece and cathode pole piece are infiltrated in the electrolytic solution, and by two groups of barrier films in gel electrolyte
Infiltrate in precursor liquid；
Step S202, the anode pole piece after infiltration, barrier film, cathode pole piece and barrier film are sequentially pressed together, and are formed and are squeezed
Binder；
Step S203, winds to carry out battery assembling to the pressing material.
In the embodiment of the present application, it is described anode pole piece and cathode pole piece are infiltrated in the electrolytic solution before, also include：It is right
The anode pole piece and the cathode pole piece carry out eliminating water and dust removal process.
In the embodiment of the present application, it is described two groups of barrier films are infiltrated in gel electrolyte precursor liquid after, also include：
The barrier film after volatilization infiltration, so that the membrane surface forms gel electrolyte layer of the thickness for 1um-80um.
The using method of the present embodiment device is described in detail with reference to Fig. 1：
First, prepare gel electrolyte precursor liquid.
The gel electrolyte precursor liquid is electrolyte, and macromolecular material, the effumability for dissolving macromolecular material have
Machine solvent, the mass percent of three is (2%-15%)：(1%-20%)：(50%-90%).Electrolyte：Lithium salts is mainly
One or more in lithium hexafluoro phosphate, lithium perchlorate, double trifluoromethanesulfonimide lithiums, trifluoromethyl sulfonic acid lithium etc., which is molten
One kind or any in the main Allyl carbonate of agent, ethylene carbonate, dimethyl carbonate, diethyl carbonate, the first and second base carbonic esters
Several combinations；Macromolecular material be Kynoar PVDF, polyvinylchloride, Kynoar-hexafluoropropene PVDF-HFP,
One kind or arbitrarily several combinations in polymetylmethacrylate etc.；Organic solvent is selected from N-Methyl pyrrolidone, tetrahydrochysene
Furan, acetone is with the one kind in ethanol or arbitrarily several combinations；Barrier film is polypropylene PP, polythene PE barrier film, PP/PE/PP multiple
Close the one kind in film and composite membrane macromolecular material of coated ceramic oxide etc. or any several combine.
Concrete preparation process：Under inert gas shielding, by macromolecular material solid dissolving in the organic solvent selected,
Stirring 6-12h, adds a certain amount of electrolyte, stirs 6-12h, obtains gel electrolyte precursor liquid standby.The noble gases
For nitrogen or argon.
Next, carrying out battery packaging technology.
Off-the-shelf electrolyte is injected in two group of first container 1, prepares volume of the infiltration anode pole piece with cathode pole piece
Material；
The gel electrolyte precursor liquid prepared before is injected in two groups of second containers 2, by gel electrolyte presoma
Liquid is coated on barrier film, prepares the high gel electrolyte for staying liquid of porous；
The parameter of first pulley group 3, second pulley group 6 and carry-over pinch rolls 11 is set with the first controller 10 again, and rotating speed is arranged
Scope is 0.01r/min-10r/min；
Rotating speed and the extruding force of compression roller 8 are set with second controller 12 again, and the parameter is related to material transfer rate, turns
Fast scope is 0.01r/min-10r/min, and extruding force scope is 0.01N-30N；
Finally, startup power supply, through high temperature eliminating water, dust removal process anode pole piece 4 with cathode pole piece 5 assembly pulley turn
Process through infiltration under dynamic, move to compression roller 8, while the gel electrolyte in dual coating under the rotation of assembly pulley of barrier film 7
Precursor liquid, obtains the gel electrolyte that a layer thickness is 10-80um through solvent volatilization, then in the presence of carry-over pinch rolls 11,
Move to compression roller 8, in the presence of compression roller 8, four force together according to the order of positive pole, barrier film, negative pole, barrier film,
Battery assembling is wound at coiler device 9 again, welding electrode ear is then carried out, enters shell encapsulation, chemical conversion, shaping, degasification, partial volume
Deng obtaining final gel polymer lithium ion battery.
In order to illustrate that the present embodiment device prepares the effect of battery, two batteries are set forth below and prepare example and prepares finished product
Effect：
First example：
First, prepare gel electrolyte precursor liquid.
Gel electrolyte precursor liquid：The lithium hexafluoro phosphate of 1M, electrolyte solvent are ethylene carbonate and diethyl carbonate
Volume ratio is 1：1 electrolyte, macromolecular material are PVDF, and the effumability organic solvent for dissolving macromolecular material is N- methyl
Ketopyrrolidine, the mass percent of three is 20%：10%：70%, barrier film is polythene PE barrier film.
Concretely comprise the following steps：Under inert gas argon gas shielded, macromolecular material solid PVDF is dissolved in selected organic
In solvent N-methyl pyrilidone, 12h is stirred, add the electrolyte of lithium hexafluoro phosphate, stirred 6h, obtain gel electrolyte forerunner
Body fluid is standby.
Next, preparing gel electrolyte membrane.
Off-the-shelf electrolyte is injected in two group of first container 1, then the gel electrolyte precursor liquid prepared is noted
Enter two groups of second containers 2, it is 5r/min assembly pulley to be arranged with 11 rotating speed of carry-over pinch rolls, arranges 8 rotating speed of compression roller for 2r/min, extruding
Power is 5N.
Startup power supply, through high temperature eliminating water, dust removal process anode pole piece with cathode pole piece first pulley group 3 rotation
It is lower to carry out infiltration process through electrolyte, move to compression roller 8, while the dual coating under the rotation of second pulley group 6 of barrier film 7
Upper gel electrolyte precursor liquid, obtains the gel electrolyte that a layer thickness is 60um through solvent volatilization, in carry-over pinch rolls 11
Under effect, move to compression roller 8, in the presence of compression roller 8, press four according to the order of positive pole, barrier film, negative pole, barrier film
Together.
Battery assembling is wound at coiler device 9, welding electrode ear is then carried out, and is entered shell encapsulation, is melted into, shaping, degasification,
Partial volume etc., obtains final gel polymer lithium ion battery.
Second example：
First, prepare gel electrolyte precursor liquid.
Gel electrolyte precursor liquid：The lithium hexafluoro phosphate of 1M, electrolyte solvent are ethylene carbonate and diethyl carbonate
Volume ratio is 1：1 electrolyte, macromolecular material are PVC, and the effumability organic solvent for dissolving macromolecular material is tetrahydrochysene furan
Mutter, the mass percent of three is 15%：5%：80%, barrier film is polyethylene PP barrier films.
Concrete steps：Under inert gas argon gas shielded, macromolecular material solid PVC is dissolved in into selected organic solvent
In tetrahydrofuran, 12h is stirred, add the electrolyte of lithium hexafluoro phosphate, stirred 6h, obtain gel electrolyte precursor liquid standby.
Next, preparing gel electrolyte membrane.
Off-the-shelf electrolyte is injected in two group of first container 1, then the gel electrolyte precursor liquid prepared is noted
Enter two groups of second containers 2, it is 8r/min assembly pulley to be arranged with 11 rotating speed of carry-over pinch rolls,
It is 3r/min to arrange 8 rotating speed of compression roller, and extruding force is 10N.
Startup power supply, through high temperature eliminating water, dust removal process anode pole piece with cathode pole piece first pulley group 3 rotation
It is lower to carry out infiltration process through electrolyte, move to compression roller 8, while the dual coating under the rotation of second pulley group 6 of barrier film 7
Upper gel electrolyte precursor liquid, obtains the gel electrolyte that a layer thickness is 50um through solvent volatilization, in carry-over pinch rolls 11
Under effect, move to compression roller 8, in the presence of compression roller 8, press four according to the order of positive pole, barrier film, negative pole, barrier film
Together.
Battery assembling is wound at coiler device 9, welding electrode ear is then carried out, and is entered shell encapsulation, is melted into, shaping, degasification,
Partial volume etc., obtains final gel polymer lithium ion battery.
Battery prepared by above-mentioned two example is detected, and contrasted gel polymer electrolyte film thickness, crossed compression roller 8
When extrusion process in whether there is liquid and flow out and capacity of lithium ion battery conservation rate, testing result is as shown in table 1.
Capability retention is tested：Lithium ion battery prepared by two examples is stood into 12h at normal temperatures, with 0.02C constant currents
Charge to blanking voltage 4.2V；30min is stood again with 0.2C constant-current discharges to blanking voltage as 3V；Lithium ion battery presses above-mentioned side
Formula carries out 500 cycle charge discharge electrical testings.
Wherein, the capability retention (%) in N weeks=[discharge capacity of discharge capacity/the first week in N weeks] * 100%.
Table 1
As seen from Table 1, the parameter index of lithium ion battery prepared by the device that the application is provided and performance meet the requirements.
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage：
Anode pole piece and cathode pole piece are first infiltrated by device that the embodiment of the present application is provided in the electrolytic solution, and by barrier film
Infiltrate in gel electrolyte precursor liquid, then pole piece and barrier film are sequentially pressed together by compression roller, due to positive pole pole
Infiltration is processed in the electrolytic solution in advance for piece and cathode pole piece, on the one hand, avoid absorbing dead less than what electrolyte occurred due to pole piece
Area, on the other hand, can be preferably compatible with the gel electrolyte on barrier film, it is not necessary to which pole piece just can be squeezed by thermal polymerization with barrier film
Force together, greatly improve the reliability of battery.
Although having been described for preferred embodiment of the present utility model, those skilled in the art once know substantially
Creative concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to bag
Include preferred embodiment and fall into the had altered of this utility model scope and change.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to this utility model
New spirit and scope.So, if it is of the present utility model these modification and modification belong to this utility model claim and
Within the scope of its equivalent technologies, then this utility model is also intended to comprising these changes and modification.
Claims (6)
1. a kind of preparation facilitiess of gel polymer lithium ion battery, it is characterised in that include：
Container group, the container group include：Two the first containers and two second containers, equipped with electricity in described two first containers
Solution liquid；Gel electrolyte precursor liquid is housed in described two second containers；
Two groups of first pulley groups, in two groups of first pulley groups, volume has anode pole piece and cathode pole piece respectively；Described two group
Part is located in two group of first container one assembly pulley respectively, described when two groups of first pulley groups are rotated, to drive
Anode pole piece and the cathode pole piece are infiltrated in the electrolyte；
Two groups of second pulley groups, in two groups of second pulley groups, volume has barrier film respectively；Two groups of second pulleys group difference portion
Be divided to and be located in two groups of second containers, the barrier film when two groups of second pulley groups are rotated, is driven in the gel
Infiltrate in electrolyte precursor body fluid；
Compression roller and coiler device, the compression roller are located between the container group and the coiler device, after infiltration
Anode pole piece, barrier film, cathode pole piece and barrier film sequentially press together, and form pressing material；And by the coiler device to institute
State pressing material to wind to carry out battery assembling.
2. preparation facilitiess as claimed in claim 1, it is characterised in that described device also includes：
Carry-over pinch rolls, the carry-over pinch rolls are located between two groups of second pulley groups and the compression roller；The carry-over pinch rolls with it is described
Membrane contacts, are moved at the compression roller with drawing the barrier film after infiltration.
3. preparation facilitiess as claimed in claim 1, it is characterised in that the outer surface of the compression roller is provided with macromolecular material
Polypropylene screen.
4. preparation facilitiess as claimed in claim 3, it is characterised in that the thickness of the macromolecular material polypropylene screen is
0.1cm-10cm。
5. preparation facilitiess as claimed in claim 1, it is characterised in that also include：
First controller, first controller are connected with two groups of first pulley groups；First controller and described two
The group connection of group second pulley, is in the rotating speed for controlling two groups of first pulley groups and two groups of second pulley groups
The scope of 0.01r/min-10r/min.
6. preparation facilitiess as claimed in claim 1, it is characterised in that also include：
Second controller, the second controller are connected with the compression roller, are in the rotating speed for controlling the compression roller
The scope of 0.01r/min-10r/min, and control the scope of the extruding force scope in 0.01N-30N of the compression roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491130.4U CN206040856U (en) | 2016-05-25 | 2016-05-25 | Gel polymer lithium ion battery's preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491130.4U CN206040856U (en) | 2016-05-25 | 2016-05-25 | Gel polymer lithium ion battery's preparation facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040856U true CN206040856U (en) | 2017-03-22 |
Family
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105895962A (en) * | 2016-05-25 | 2016-08-24 | 成都国珈星际固态锂电科技有限公司 | Preparation apparatus and preparation method for gel polymer lithium ion battery |
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Effective date of registration: 20200820 Address after: 034000 northeast corner of Yuwang road and Xueyuan street, Xinzhou Development Zone, Shanxi Province Patentee after: Shanxi Nengji Intelligent Technology Co.,Ltd. Address before: 611743, 839, Tian Qin Road, Chengdu hi tech Zone (West District, Sichuan) Patentee before: Interstellar Solid-State Li-ion Batteries Technology (Chengdu) Co.,Ltd. |