CN106654373A - Device for infiltrating electric core - Google Patents
Device for infiltrating electric core Download PDFInfo
- Publication number
- CN106654373A CN106654373A CN201510729161.9A CN201510729161A CN106654373A CN 106654373 A CN106654373 A CN 106654373A CN 201510729161 A CN201510729161 A CN 201510729161A CN 106654373 A CN106654373 A CN 106654373A
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- Prior art keywords
- battery core
- connectedness
- control unit
- cavity
- pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
An embodiment of the invention discloses a device and a method for infiltrating an electric core. The electric core is a soft-package lithium-ion battery electric core, the device comprises a first communication part, a cavity, a second communication part and a sealing part, one end of the first communication part is connected to a first air pressure adjustment device, the cavity is fixedly communicated with the other end of the first communication part, the electric core can contain in the cavity, pressure in the cavity is increased and reduced by the first air pressure adjustment device, one end of the second communication part is connected to a second air pressure adjustment device, an air bag of the electric core is fixedly communicated with the other end of the second communication part, the second air pressure adjustment device increases and reduces pressure in the electric core through the second communication part, an opening portion of the air bag of the electric core is sealed by the sealing part, and the inside of the electric core is isolated from outside in the cavity. According to the device, the inside of the electric core is isolated from the outside in the cavity, so that ideal pressure difference can be formed, capillaries of the inside of the electric core are enhanced, bubble breakage is accelerated, and electrolyte infiltration efficiency is improved.
Description
Technical field
The present invention relates to technical field of lithium batteries, and more particularly, to a kind of infiltration battery core
Equipment.
Background technology
Lithium rechargeable battery has energy density height, small volume, puts that a platform identity is good, follows
The features such as ring life-span length, memory-less effect and green non-pollution, electronic product, electric tool,
New-energy automobile and energy-accumulating power station field have broad application prospects.
The production process of lithium ion battery include slurrying, coating, calendering, slitting, cut-parts, fold
Piece, tab welding, heat-sealing, fluid injection, electrolyte impregnation, forming and capacity dividing etc., wherein electrolyte
Infiltrate that to expend the time in all multiple operation of lithium battery production most long, can be with because sufficiently standing
Ensure that electrolyte carries out thoroughly micro- reaction in electrode surface, form firm SEI (solid
Electrolyte interface, solid electrolyte interface) film, it is to avoid macoradical intercalation electrode
Inside causes active material to come off and battery capacity diving, so as to ensure the cycle life of battery.
Sufficiently standing can also comprehensively infiltrate electrode surface, reduce electrode invalid, improve battery and hold
Amount.Generally, factory is by being positioned over the battery after the completion of fluid injection is open 24 hours in drying shed
More than stood, drying shed operation maintenance cost is high, prolonged standing wastes a large amount of moneys
Source, reduces production efficiency.
For improve production efficiency, improve product quality, develop a kind of new electrolyte infiltration
Stand technique imperative.
CN103872381A is related to a kind of fluid injection of electrokinetic cell and stands method, wherein compared for
Two methods：1. standing 12-24 hours are carried out in the workshop of dry air after injecting electrolytic solution, should
Plant method electrode or barrier film is unsatisfactory to the siphonage of electrolyte, cause electrolyte infiltration speed
Spend slow, low production efficiency and making internal resistance of cell height, cycle life are poor；2. battery carries out part electricity
Be put into constant temperature after solution liquid injection to stand in case, electrokinetic cell is carried out vacuumize for three times and three times plus
Pressure, vacuumizes for each time or adds after pressure and stand certain hour, subsequently by electrokinetic cell pressure release
Subsequent handling is entered to normal pressure.The method is directed to the rectangular cell with rigid shell, and
Emphasize to inject part electrolyte, by said method, unabsorbed liquid level of electrolyte is with top
The battery core divided is difficult infiltration in the cyclic process for vacuumizing or adding pressure.
CN103811712A is related to the automatic metaplasia that a kind of fluid injection of power soft package lithium battery is sealed in advance
Producing line, wherein disclose and directly vacuumizing after power battery electrolyte fluid injection, sealing in advance, Ran Houjin
Enter the standing stage.In the process, once vacuumize after the completion of fluid injection, seal up for safekeeping asked at two in advance
Topic：1. once vacuumize and cause unabsorbed electrolyte skewness；2. it is electrolysed after battery core fluid injection
Chemical reaction generation gas can occur during liquid and electrode contact, once take out so as to relieve
Power or destruction vacuum that vacuum is compressed to battery core, vacuum failure affects the rainbow of electrode and barrier film
Effect is inhaled, electrolyte wetting efficiency is reduced.
Therefore, it is still necessary to which a kind of simple effective method improves the efficiency and effect of electrolyte infiltration.
The content of the invention
The apparatus and method of another kind of different infiltration battery core are embodiments provided, can
Improve electrolyte wetting efficiency.
The battery core of the present invention is soft package lithium battery battery core, and the equipment includes：First connectedness, its
One end is connected to the first barometric control unit；Fix with the other end of the first connectedness and connect
Cavity, can house battery core in cavity, the first barometric control unit is by the first connectedness to chamber
Supercharging in vivo and decompression；Second connectedness, its one end is connected to the second barometric control unit, electricity
The air bag of core is fixed and connected with the other end of the second connectedness, and the second barometric control unit passes through
Second connectedness to being pressurized in battery core and reducing pressure, seal, it is by the opening portion of the air bag of battery core
Sealing is divided to be isolated with outside with the inside that battery core is made in cavity.
Embodiments in accordance with the present invention, the equipment also includes：First barometric control unit and second
Barometric control unit.
Embodiments in accordance with the present invention, the second connectedness includes the second outtake tube and the second air inlet
Conduit, the second barometric control unit includes connecting the second outtake tube and the second air induction conduit respectively
The second air extractor and the second air supply plant, valve is installed on the second outtake tube.
Embodiments in accordance with the present invention, the equipment also includes sleeve pipe, and sleeve pipe is accommodated and fixes second
One end of outtake tube and one end of the second air induction conduit, the air bag of battery core is by seal and set
One end of pipe is fixed and is connected, the closing of the other end of sleeve pipe, the other end of the second outtake tube and
The other end of the second air induction conduit is passed from one end of the closing of sleeve pipe.
Embodiments in accordance with the present invention, the equipment also includes controller, and controller is configured to pre-
Determine number of times and repeat following control process：The second barometric control unit is controlled by the second connection
Part will be vacuumized in battery core, while control the first barometric control unit being adjusted by the first connectedness
Pressure in cavity is predetermined pressure, and is kept for first scheduled time；Control the first air pressure adjustment
Device and the second barometric control unit regulation cavity and the pressure in battery core cause the pressure in cavity
Less than the pressure in battery core and kept for second scheduled time.
Embodiments in accordance with the present invention, controller is answered when being configured to repeat every time control process
With independent predetermined pressure, first scheduled time and second scheduled time.
Embodiments in accordance with the present invention, first scheduled time that controller is configured to apply is 5-60
Minute, predetermined pressure is 50-400KPa, and second scheduled time was 5-60 minutes, pre-determined number
For 2-10.
Embodiments in accordance with the present invention, controller is configured to the predetermined pressure of application and is
100-300KPa, first scheduled time is 10-40 minutes, and second scheduled time was 10-40 point
Clock.
Embodiments in accordance with the present invention, controller is configured to the predetermined pressure of application and is
150-250KPa, second scheduled time is 20-30 minutes, and pre-determined number is 3-5.
Embodiments in accordance with the present invention, when pre-determined number is more than or equal to 2, controller is configured to
Using the predetermined pressure for gradually increasing when repeating control process every time, wherein after second
Every time the predetermined pressure of application increases by 50% to 100% than the front predetermined pressure once applied.
Embodiments in accordance with the present invention, the first connectedness includes the first outtake tube and the first air inlet
Conduit, the first barometric control unit includes connecting the first outtake tube and the first air induction conduit respectively
The first air extractor and the first air supply plant, valve is installed on the first outtake tube.
Embodiments of the invention are isolated due to the inside that battery core is made in cavity with outside, therefore
Comparatively ideal pressure difference can be formed, the class capillarity inside battery core is enhanced and is accelerated gas
Follicular rupture, so as to improve electrolyte wetting efficiency.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to of the invention real
Apply the accompanying drawing to be used needed for example to be briefly described.It should be evident that disclosed below
Accompanying drawing is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the schematic structure of the equipment of the infiltration battery core according to one embodiment of the present of invention
Figure.
Description of reference numerals
1- battery core 2- cavitys
3- seal 4- sleeve pipes
5- the second outtake tube the second air induction conduits of 6-
7- the first outtake tube the first air induction conduits of 8-
9,10- valves
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case is clearly and completely described, and the battery core in the embodiment of the present invention is soft package lithium battery battery core.
Obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.
In the production process of lithium battery, battery core can not excessively inject electrolyte in fluid injection, i.e.
The amount of fluid injection should be equal with the amount of the electrolyte of electrode adsorption, and electrolyte is in battery core internal electrode
There is class capillarity between membrane layer, it is assumed that barrier film and electrode interlamellar spacing are d, electrolyte with
Contact angle between electrode and barrier film is θ, and density of electrolyte is ρ, and surface tension coefficient is σ,
Acceleration of gravity is g, then the height that electrolyte can rise between barrier film and electrode(k is equation coefficients).As can be seen here, reducing barrier film can with electrode interlamellar spacing d
To improve h, so as to improve electrolyte effect of impregnation.
Simultaneously as battery core generally has many layers, in infiltration, electrolyte soaks from outside to inside
Profit, after the infiltration of outside, the drying nest that inside does not infiltrate is i.e. equivalent to subsurface bubble.It is right
There is following stress balance in subsurface bubble：If applying external force to battery core
P, then the stress balance of bubble be changed into
When external force p becomes big, p while the direct R of bubble diminishesgBecome big；
External force p becomes hour, p while the direct R of bubble becomes biggDiminish；
When external force p amplitude of variation is larger or changes repeatedly, the possibility of bubbles burst
Greatly increase, so as to the present invention is by applying the bubble inside external force expulsion battery core, improve infiltration
Effect.
Embodiments of the invention are said below in conjunction with accompanying drawing and above two principle
It is bright.
Fig. 1 is the schematic structure of the equipment of the infiltration battery core according to one embodiment of the present of invention
Figure.It should be understood that the various pieces of the equipment of the infiltration battery core shown in Fig. 1 are exemplary enforcement
Example, not as limitation of the present invention.
As shown in figure 1, the equipment of infiltration battery core includes：First connectedness 7,8, its one end connects
It is connected to the first barometric control unit (not shown)；
Electricity can be housed in the cavity 2 fixed with the other end of the first connectedness and connect, cavity 2
Core 1, the first barometric control unit is by the way that the first connectedness is to supercharging in cavity 2 and reduces pressure；
Second connectedness 5,6, its one end is connected to the second barometric control unit (not shown), electricity
The air bag of core 1 is fixed and connected with the other end of the second connectedness, and the second barometric control unit leads to
The second connectedness is crossed to supercharging in battery core 1 and is reduced pressure,
Seal 3, it seals the opening portion of the air bag of battery core to make battery core 1 in cavity 2
Inside be isolated with outside.
It should be understood that the equipment can also include the first barometric control unit and/or the second air pressure adjustment
Device.Cavity 2 provides malleation or true for coordinating barometric control unit for the outside of battery core 1
Altitude.First connectedness and the second connectedness can be soft or hard conduits etc.
Any type of connectedness, as long as it can be adjusted with the air pressure of such as air supply plant or air extractor
Regulating device is connected to change cavity 2 and the pressure inside battery core 1, all in the protection of the present invention
In the range of.For example, air supply plant can be dry compressed gas source；Air extractor is used for electricity
Core inner vacuumizes to be pressurized or be depressured, such as vavuum pump etc..The air bag of the battery core can be with
It is made up of plastic-aluminum membrane material.Additionally, the first connectedness and the second connectedness can also be one
Or multiple conduits, embodiments of the invention are not limited this, during using multiple conduits, air pressure
The speed of regulation is faster.
Embodiments of the invention due to the inside of battery core 1 and outside being isolated in the cavity 2,
Therefore comparatively ideal pressure difference can be formed between the inside and outside of battery core 1, according to above-mentioned principle,
Battery core inner septum and electrode interlamellar spacing d can fully be changed by the pressure difference of the inside and outside of battery core 1
Apply external force p with to battery core repetition, therefore enhance the class capillarity inside battery core and accelerate
Bubbles burst, so as to improve electrolyte wetting efficiency.
As shown in figure 1, the second connectedness can enter conductance including the second outtake tube 5 and second
Pipe 6, the second barometric control unit can include connecting the second outtake tube 5 and the second air inlet respectively
Second air extractor and the second air supply plant of conduit 6, can install on the second outtake tube 6
There is valve 9.
According to the embodiment of Fig. 1, the first connectedness can include the first outtake tube 7 and first
Air induction conduit 8, the first barometric control unit can include connecting the first outtake tube 7 and the respectively
First air extractor and the first air supply plant of one air induction conduit 8, can on the first outtake tube 7
To be provided with valve 10.
Specifically, conduit is separated into air induction conduit and outtake tube so that air pressure adjustment energy again
It is enough more convenient and efficient.Close valve 9 or 10 to can be used to maintain the air pressure in cavity 2, beat
Valve opening door 9 or 10 can be such that air pressure recovers to normal pressure, and valve is used so that being more suitable for larger rule
The enforcement of the infiltration technique of mould.
Embodiments in accordance with the present invention, as shown in figure 1, the equipment can also include sleeve pipe 4, set
Pipe 4 accommodates and fixes one end of the second outtake tube 5 and one end of the second air induction conduit 6, electricity
The air bag of core 1 is fixed and connected by seal 3 with one end of sleeve pipe 4, sleeve pipe 4 it is another
End seal is closed, and the other end of the other end of the second outtake tube 5 and the second air induction conduit 6 is from sleeve pipe 4
One end of closing pass.
It should be understood that the present embodiment is not limited the structure of seal 3, seal 3 and sleeve pipe 4
Use cooperatively, seal 3 preferably can be sealing strip.Seal 3 is used for battery core 1
Air bag opening part seals, to separate the gas inside and outside battery core, while guaranteeing inside cavity 2
The inside of battery core 1 and outside are isolated.In addition, sleeve pipe 4 can be the conduit of lower ending opening；
Can also be the conduit of both ends open, be connected the upper end of the conduit and second using another seal
Logical part sealing.Embodiments of the invention employ sleeve pipe and seal, it is ensured that whole equipment
Air-tightness and security are further improving effect of impregnation.
Alternatively, as another embodiment, the equipment also includes controller, and controller is configured to
Following control process is repeated with pre-determined number：The second barometric control unit is controlled by second
Connectedness will be vacuumized in battery core, while controlling the first barometric control unit passes through the first connectedness
The pressure adjusted in cavity is predetermined pressure, and is kept for first scheduled time；Control the first air pressure
Adjusting means and the second barometric control unit adjust cavity and the pressure in battery core is caused in cavity
Pressure is less than the pressure in battery core and is kept for second scheduled time.
Specifically, vacuumized and in the method pair of the interior pressurization of cavity 2 by interior to battery core 1
Two lateral surfaces of battery core pressurize to compress battery core and stand, and by by such as dry nitrogen gas cylinder
Dry gas bottle etc. cause the pressure in cavity simultaneously less than in battery core to battery core internal pressurization
The method of pressure realizes that the aluminum plastic film of two lateral surfaces of battery core is strutted and stood, and can cause electricity
The unabsorbed electrolyte redistribution of the membrane surface in the middle part of core, promotes battery core electrolyte inside
Level change, enhances the class capillarity inside battery core, while bubbles burst is accelerated, from
And improve electrolyte wetting efficiency.
Preferably, make a reservation for using independent when controller is configured to repeat every time control process
Pressure, first scheduled time and second scheduled time.That is, repeating aforesaid operations process every time
When can apply different predetermined pressures, first scheduled time and second scheduled time, it is also possible to
It is using different predetermined pressure but predetermined using identical first when repeating aforesaid operations process every time
Time and second scheduled time, there is no each other restricting relation in it.
Preferably, controller be configured to apply first scheduled time be 5-60 minutes, pre- level pressure
It is by force 50-400KPa, second scheduled time was 5-60 minutes, and pre-determined number is 2-10.
Preferably, the predetermined pressure that controller is configured to apply is 100-300KPa, and first makes a reservation for
Time is 10-40 minutes, and second scheduled time was 10-40 minutes.
Preferably, when pre-determined number is more than or equal to 2, controller is configured to repeat every time
Using the predetermined pressure for gradually increasing during control process, wherein that what is applied every time after second is pre-
Level pressure increases by 50% to 100% than the front predetermined pressure once applied by force.
Preferably, the predetermined pressure that controller is configured to apply is 150-250KPa, and second makes a reservation for
Time is 20-30 minutes, and pre-determined number is 3-5.
Several infiltrations of the invention will be specifically described based on the structure of the equipment of Fig. 1 below
The method preferred embodiment of battery core and comparative example：
Embodiment 1：
Step one, the battery core 1 for finishing fluid injection are put into cavity 2, by the Air sac cover of battery core 1
Fix on sleeve pipe 4 and with seal 3；
Step 2,100KPa is pressurized into cavity 2 by being dried compressed nitrogen air inlet 8,
- 60KPa is evacuated to battery core inside by conduit 5, valve 9 is closed, 10 minutes are stood；
Step 3, opening valve 10 make to recover normal pressure in cavity 2, by 6 to the air bag of battery core 1
Interior injection drying nitrogen is pressurized to 100KPa, stands 10 minutes；
Step 4,100KPa is pressurized into cavity 2 by being dried compressed nitrogen air inlet 8,
100KPa is evacuated to battery core inside by conduit 5, valve 9 is closed, 10 minutes are stood；
Step 5, opening valve 10 make to recover normal pressure in cavity 2, by 6 to the air bag of battery core 1
Interior injection drying nitrogen is pressurized to 100KPa, stands 10 minutes；
Step 6, equipment components are recovered to normal pressure, vacuumize after pre- envelope stands 9 hours and turn
Enter next procedure.
It should be understood that when the time of the standing of each step is long, last vacuumizes pre- envelope
Time of repose can still can guarantee that the effect of impregnation of the equipment, for example, when pre- with relatively short
If time of repose when being 30 minutes, the time that pre- envelope stands can be 7 hours；When default
When time of repose is 60 minutes, the time that pre- envelope stands can be 4 hours.
Embodiment 2：
Step one, the battery core 1 for finishing fluid injection are put into cavity 2, by the Air sac cover of battery core 1
Fix on sleeve pipe 4 and with clips 3；
Step 2,300KPa is pressurized into cavity 2 by being dried compressed nitrogen air inlet 8,
- 60KPa is evacuated to battery core inside by conduit 5, valve 9 is closed, 30 minutes are stood；
Step 3, opening valve 10 make to recover normal pressure in cavity 2, by 6 to the air bag of battery core 1
Interior injection drying nitrogen is pressurized to 300KPa, stands 30 minutes；
Step 4,100KPa is pressurized into cavity 2 by being dried compressed nitrogen air inlet 8,
- 100KPa is evacuated to battery core inside by conduit 5, valve 9 is closed, 30 minutes are stood；
Step 5, opening valve 10 make to recover normal pressure in cavity 2, by 6 to the air bag of battery core 1
Interior injection drying nitrogen is pressurized to 300KPa, stands 30 minutes；
Step 6, equipment components are recovered to normal pressure, vacuumize after pre- envelope stands 7 hours and turn
Enter next procedure.
It should be understood that when carrying out pressurized treatment, needing the pressure being forced into be control in cavity
Default in device, for example, pressure can be 200KPa or other numerical value, embodiments of the invention
This is not construed as limiting.
Comparative example 1：
Step one：The battery core of soft-package battery is carried out into fluid injection according to design reservoir quantity；
Step 2：Vacuumize pre- envelope and carry out normal temperature and pressure and stand 10h.
Comparative example 2：
Step one：Soft-package battery is carried out into fluid injection according to design reservoir quantity；
Step 2：Vacuumize pre- envelope and carry out normal temperature and pressure and stand 20h.
After battery core completes other techniques, in order to evaluate different process to electrolyte effect of impregnation
Impact, respectively take 10 battery cores and disassembled in glove box, whether check battery core internal electrode
There is non-wetted-out region.
Table 1 is enumerated in above-described embodiment 1-3 and comparative example and disassemble at random respectively extraction electricity
There is the comparative result of the number of arid region in core inner.
The results contrast of the embodiment of table 1 and comparative example：
| There is the battery core number (individual) of arid region in inside | |
| Embodiment 1 | 1 |
| Embodiment 2 | 0 |
| Comparative example 1 | 9 |
| Comparative example 2 | 4 |
As can be seen from Table 1, flexible package lithium cell electricity is infiltrated using according to the electrolyte of the application
The method of core, compared with the conventional method of comparative example, in identical infiltrating time, the application
Effect of impregnation obtained significant raising.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, this
The protection domain of invention is defined by the claims.Those skilled in the art can be the present invention's
In essence and protection domain, make various modifications or equivalent to the present invention, this modification or
Equivalent also should be regarded as being within the scope of the present invention.
Claims (10)
1. it is a kind of infiltration battery core equipment, it is characterised in that the battery core be soft package lithium battery electricity
Core, the equipment includes：
First connectedness, its one end is connected to the first barometric control unit；
The cavity fixed and connect with the other end of first connectedness, can in the cavity
The battery core is housed, first barometric control unit is by first connectedness to the chamber
Supercharging in vivo and decompression；
Second connectedness, its one end is connected to the second barometric control unit, the air bag of the battery core
Fix and connect with the other end of second connectedness, second barometric control unit passes through
Second connectedness in the battery core to being pressurized and reducing pressure；
Seal, it seals the opening portion of the air bag of the battery core to make in the cavity
The inside of the battery core is isolated with outside.
2. equipment according to claim 1, it is characterised in that also include：Described first
Barometric control unit and second barometric control unit.
3. equipment according to claim 2, it is characterised in that the second connectedness bag
The second outtake tube and the second air induction conduit are included, second barometric control unit includes connecting respectively
The second air extractor and second for connecing second outtake tube and the second air induction conduit is supplied gas dress
Put, valve is installed on second outtake tube.
4. equipment according to claim 3, it is characterised in that the equipment also includes set
Pipe, described sleeve pipe is accommodated and fixes one end of second outtake tube and described second enters conductance
One end of pipe, the air bag of the battery core is fixed simultaneously by one end of the seal and described sleeve pipe
Connection, the other end closing of described sleeve pipe, the other end of second outtake tube and described the
The other end of two air induction conduits is passed from one end of the closing of described sleeve pipe.
5. equipment according to claim 2, it is characterised in that the equipment also includes control
Device processed, the controller is configured to repeat following control process with pre-determined number：
Control second barometric control unit to take out in the battery core by second connectedness
Vacuum, while control first barometric control unit adjusts described by first connectedness
Pressure in cavity is predetermined pressure, and is kept for first scheduled time；
Control first barometric control unit and second barometric control unit adjusts the chamber
Pressure in body and battery core causes the pressure in the cavity less than the pressure in the battery core and protects
Held for second scheduled time.
6. equipment according to claim 5, it is characterised in that the controller is configured to
Using the independent predetermined pressure, the first pre- timing when repeating the control process every time
Between and second scheduled time.
7. equipment according to claim 5, it is characterised in that the controller is configured to
Using first scheduled time be 5-60 minutes, the predetermined pressure be 50-400KPa,
Second scheduled time is 5-60 minutes, and the pre-determined number is 2-10.
8. equipment according to claim 5, it is characterised in that the controller is configured to
Using the predetermined pressure be 100-300KPa, first scheduled time be 10-40 minutes,
Second scheduled time is 10-40 minutes.
9. equipment according to claim 5, it is characterised in that when the pre-determined number it is big
When equal to 2, apply when the controller is configured to repeat every time the control process by
The cumulative predetermined pressure for adding, wherein the predetermined pressure ratio of application every time after second
The front predetermined pressure once applied increases by 50% to 100%.
10. the equipment according to any one of claim 1-9, it is characterised in that institute
The first connectedness is stated including the first outtake tube and the first air induction conduit, first air pressure adjustment
Device includes connecting the first air extractor of first outtake tube and the first air induction conduit respectively
With the first air supply plant, valve is installed on first outtake tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729161.9A CN106654373B (en) | 2015-10-30 | 2015-10-30 | Infiltrate the equipment of battery core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729161.9A CN106654373B (en) | 2015-10-30 | 2015-10-30 | Infiltrate the equipment of battery core |
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| CN106654373A true CN106654373A (en) | 2017-05-10 |
| CN106654373B CN106654373B (en) | 2019-06-25 |
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| CN201510729161.9A Active CN106654373B (en) | 2015-10-30 | 2015-10-30 | Infiltrate the equipment of battery core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326827A (en) * | 2018-10-15 | 2019-02-12 | 珠海光宇电池有限公司 | A kind of standing method after lithium ion battery liquid injection |
| CN109687034A (en) * | 2019-01-11 | 2019-04-26 | 深圳吉阳智能科技有限公司 | A kind of electrolyte infiltration apparatus for lithium battery |
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