CN208385538U - A kind of vacuum pressuring flat device for the production of button lithium secondary battery - Google Patents
A kind of vacuum pressuring flat device for the production of button lithium secondary battery Download PDFInfo
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- CN208385538U CN208385538U CN201820563445.4U CN201820563445U CN208385538U CN 208385538 U CN208385538 U CN 208385538U CN 201820563445 U CN201820563445 U CN 201820563445U CN 208385538 U CN208385538 U CN 208385538U
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- button lithium
- cabinet
- lithium secondary
- secondary battery
- vacuum
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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 relates to a kind of vacuum pressuring flat devices for the production of button lithium secondary battery, it is characterized by comprising cabinets, jack and press mechanism composition, wherein jack is movably connect with wall box, the press mechanism includes bracket, lower piezoelectric machine, down-pressed pole and lower platen, the pedestal lower end is connected and fixed with jack, pedestal upper end face is equipped with lower piezoelectric machine, the down-pressed pole is arranged in cabinet, down-pressed pole one end is fixedly connected with bracket, the other end is fixedly connected with lower platen, it the advantage is that, the utility model passes through a kind of simple and reliable processing apparatus system, it is released inside battery gas pressure in an assembling process, and then effectively manage button lithium battery thickness, improve because of leakage problem caused by air pressure inside.
Description
Technical field
The utility model relates to lithium battery technology production field more particularly to it is a kind of for button lithium secondary battery production
Vacuum pressuring flat device.
Background technique
Common button lithium secondary battery usually by two metal halfs (cell cup, battery cover), positive and negative electrode, every
Film, electrolyte are formed, and in button lithium battery manufacturing process, positive and negative electrode and diaphragm are made in the way of storehouse or winding
Electrical connection is carried out at battery core, and by battery core and metal shell, after injecting electrolyte, two metal halfs are combined simultaneously
Insulation, finally button lithium battery production process is completed in chemical conversion.
In order to avoid moisture influences battery quality during processing procedure, in addition to the moisture of each material of control, production process is logical
It is often assembled in glove box or hothouse, uses the moisture in control production environment；It is had no in button lithium battery processing procedure
Gas station, electrolyte can generate gas with reaction of moisture in formation process, cause internal pressure increase cause the super rule of thickness,
The problems such as leakage.
In addition, the easy gas by arround compresses together is placed in enclosure interior, in formation during two half shell recombinants
Portion's pressure causes the super rule of button cell thickness or electrolyte extrusion is caused leakage.
Utility model content
The purpose of this utility model is to provide a kind of vacuum pressuring flat devices for the production of button lithium secondary battery.
To achieve the above object, the vacuum pressuring flat device for the production of button lithium secondary battery of the utility model, it is special
Sign is: forming including cabinet, jack and press mechanism, wherein jack is movably connect with wall box, under described
Press mechanism includes bracket, lower piezoelectric machine, down-pressed pole and lower platen, and described bracket one end is connect with jack, the other end and bottom plate
It is fixedly connected, cabinet upper surface is equipped with lower piezoelectric machine, and the down-pressed pole is arranged in cabinet, down-pressed pole one end and lower piezoelectric machine
Connection, the other end are fixedly connected with lower platen.
Further, the present apparatus further includes vacuum pump, and the vacuum pump setting is inserted in cabinet side, the exhaust tube of vacuum pump
In cartonning body.
Further, the present apparatus further includes limited block, and position is arranged between bottom plate and lower platen in the limited block.
The present apparatus mainly has the advantage that
The utility model makes inside battery gas pressure in assembling process by a kind of simple and reliable processing apparatus system
In be released, and then effectively manage button lithium battery thickness, improve because of leakage problem caused by air pressure inside.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vacuum pressuring flat device for the production of button lithium secondary battery of the utility model.
Fig. 2 is that the working state structure of the vacuum pressuring flat device for the production of button lithium secondary battery of the utility model shows
It is intended to.
Fig. 3 is button lithium secondary battery state simple illustration of the utility model under vacuum negative pressure condition.
Fig. 4 is to compare figure using the electrical cyclical stability of the button lithium secondary battery of the utility model.
Fig. 5 is to compare figure using the thickness distribution of the button lithium secondary battery of the utility model.
Fig. 6 is that two group cell thickness measure comparison sheet.
In figure: 1 is cabinet, and 2 be jack, and 3 be bracket, and 4 be down-pressed pole, and 5 be lower platen, and 6 be limited block, and 7 be to push
Motor, 8 be bottom plate, and 9 be vacuum pump, and 10 be the control of electric-control system module, and 11 be semi-finished product button cell.
Specific embodiment
As shown in Figure 1, the vacuum pressuring flat device for the production of button lithium secondary battery of the utility model, mainly by cabinet
1, limited block 6, jack 2 and press mechanism composition, cabinet 1 are lower end surface open-type box body 1, and jack 2 and 1 side wall of cabinet can
Mobile connection.
Press mechanism is mainly made of bracket 3, lower piezoelectric machine 7, down-pressed pole 4 and lower platen 5,3 one end of bracket and jack 2
Connection, the other end are fixedly connected with bottom plate, and 1 upper surface of cabinet is equipped with several lower piezoelectric machines 7, and down-pressed pole 4 and lower platen 5 are set
It sets inside cabinet 1, one end of down-pressed pole 4 is perforated through cabinet 1 and connect with lower piezoelectric machine 7, the upper surface of the other end and lower platen 5
It is connected and fixed.
The bottom plate 8 of 1 bottom of cabinet is equipped with moveable limited block 6, and limited block 6 is arranged between bottom plate 8 and lower platen 5
Position.Meanwhile to be additionally provided with vacuum pump 9 and electric-control system module 10 outside cabinet 1, the exhaust tube of vacuum pump 9 is inserted into case
In body 1.The control terminal of electric-control system module 10 is connected to jack 2, lower piezoelectric machine 7 and vacuum pump 9.
As shown in Figure 2 and Figure 3, the utility model is in the processing for being actually used in button lithium secondary battery, first by lithium it is secondary plus
The battery core of work battery, upper cover shell, bottom cover shell, electrolyte carry out pre-assembled semi-finished product button lithium battery 11.Group is installed
At semi-finished product button lithium battery 11 be placed in 1 internal backplane 8 of cabinet with 5 following location directly of lower platen, and limited block 6 is put
It is disposed adjacent to the surrounding of semi-finished product button lithium battery 11.
Placing battery and after fixing, by vacuum pump 9 to vacuumize process is carried out inside cabinet 1, guarantees true in cabinet 1
Empty range of negative pressure is 0.1 MPa to 0.01 MPa.After the completion of vacuumizing, start lower piezoelectric machine 7, lower platen 5 declines, to semi-finished product
The shell of button lithium battery 11 applies pressure, by 11 internal gas of semi-finished product button lithium battery by negative pressure of vacuum and external pressure
Shell type is discharged, and manages cell thickness size using limited block 6.After the completion of pushing, cabinet vacuum is discharged and by case
Body 1 and lower platen 5 jack up upwards, take out the semi-finished product button lithium battery 11 for pushing and completing the process.
Whole process is controlled by electric-control system module 10, and it is negative to control vacuum in the cabinet 1 in whole process
Pressure and the variation for pushing height meet process requirements.
After the completion of pushing, assembled semi-finished product button lithium battery 11 is put into sealing machine and is sealed, sealing mode is
Physical property closely sealed (closely sealed physical property includes crimping, riveted etc.) and the property changed are closely sealed (the closely sealed property changed includes sealing glue bond etc.).Finally will
The button lithium battery of sealing is handled using charging/discharging apparatus, and button lithium secondary battery is made.
Fig. 4 is the electrical cyclical stability using the button lithium secondary battery of the vacuum pressuring flat device system of the utility model
Compare figure, embodiment is to take to carry out battery assembly under negative pressure of vacuum environment, and comparative example is taken under general dry room environmental
Carry out battery assembly；Two groups of battery grab sample are subjected to charge and discharge cycles test and verify electrical stability, are nominally held with battery
50% current value (0.5C) of amount carries out charge and discharge cycles, and totally 500 times, the other battery sample of embodiment group can be observed in PRELIMINARY RESULTS
Product are after 500 charge and discharge cycles, and capacity response rate can still maintain 90% or more, and the other battery sample of comparative example group passes through
After crossing 500 charge and discharge cycles, capacity response rate only remains about 70%, and main difference is in cell assembling processes, inside battery
Gas content number caused by, the other inside battery gas of embodiment group assembles after being discharged gas in a manner of negative pressure of vacuum,
Gas content is few, and moisture content is also less, and electrolyte less easily generates side reaction with water and is lost, battery charging and discharging circular list
Now preferably, electrical performance is also relatively stable.
Fig. 5 is the thickness distribution ratio using the button lithium secondary battery of the vacuum pressuring flat device system of the utility model
Compared with figure, embodiment is to take to carry out battery assembly under negative pressure of vacuum environment, comparative example be then take under general dry room environmental into
Row battery assembly；After taking 60 samples to be assembled at random on two groups of batteries, cell thickness size is carried out with constant-pressure calibrator
It measures, using 5.7 mm of thickness as criterion of acceptability, embodiment group other cell thickness size substantially 5.5-5.6 mm, comparative example
The other cell thickness size substantially 5.7-5.8 mm of group.
Table as shown in FIG. 6 is then that two group cell thickness measure comparison sheet, the other cell thickness size of embodiment group
Qualification rate is 100%, and the other cell thickness size qualification rate of comparative example group is 16.7%, and main difference is still that inside battery gas is
It is no caused whether there is or not being removed in an assembling process.In addition, the other battery of embodiment group is in addition to the qualification rate of thickness is high, electricity
Property stable circulation, opposite inside battery gas is few to be also not easy to squeeze electrolyte leakage is caused to fail.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the foregoing is merely a specific embodiment of the invention, the guarantor that is not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all be contained in this hair
Within bright protection scope.
Claims (4)
1. a kind of vacuum pressuring flat device for the production of button lithium secondary battery, it is characterised in that: including cabinet (1), jack
(2) it is formed with press mechanism, wherein jack (2) is movably connect with cabinet (1) side wall, and the press mechanism includes bracket
(3), lower piezoelectric machine (7), down-pressed pole (4) and lower platen (5), described bracket (3) one end are connect with jack (2), the other end with
Bottom plate (8) is fixedly connected, and cabinet (1) upper surface is equipped with lower piezoelectric machine (7), and down-pressed pole (4) setting is interior in cabinet (1),
Down-pressed pole (4) one end is connect with lower piezoelectric machine (7), and the other end is fixedly connected with lower platen (5).
2. a kind of vacuum pressuring flat device for the production of button lithium secondary battery according to claim 1, it is characterised in that:
It further include vacuum pump (9), vacuum pump (9) setting is inserted into cabinet (1) in cabinet (1) side, the exhaust tube of vacuum pump (9)
It is interior.
3. a kind of vacuum pressuring flat device for the production of button lithium secondary battery according to claim 1, it is characterised in that:
It further include limited block (6), position is arranged between bottom plate (8) and lower platen (5) in the limited block (6).
4. a kind of vacuum pressuring flat device for the production of button lithium secondary battery according to claim 1, characterized in that top
The machine of liter can be made of with lower piezoelectric machine screw rod, cylinder, cam and oil hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563445.4U CN208385538U (en) | 2018-04-19 | 2018-04-19 | A kind of vacuum pressuring flat device for the production of button lithium secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563445.4U CN208385538U (en) | 2018-04-19 | 2018-04-19 | A kind of vacuum pressuring flat device for the production of button lithium secondary battery |
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| Publication Number | Publication Date |
|---|---|
| CN208385538U true CN208385538U (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820563445.4U Active CN208385538U (en) | 2018-04-19 | 2018-04-19 | A kind of vacuum pressuring flat device for the production of button lithium secondary battery |
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| CN (1) | CN208385538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589961A (en) * | 2020-04-28 | 2020-08-28 | 惠州市卓特自动化科技有限公司 | Vacuumizing flat pressing device |
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2018
- 2018-04-19 CN CN201820563445.4U patent/CN208385538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589961A (en) * | 2020-04-28 | 2020-08-28 | 惠州市卓特自动化科技有限公司 | Vacuumizing flat pressing device |
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