CN108808141A - The method of soft package lithium battery chemical conversion exhaust - Google Patents
The method of soft package lithium battery chemical conversion exhaust Download PDFInfo
- Publication number
- CN108808141A CN108808141A CN201810551161.8A CN201810551161A CN108808141A CN 108808141 A CN108808141 A CN 108808141A CN 201810551161 A CN201810551161 A CN 201810551161A CN 108808141 A CN108808141 A CN 108808141A
- Authority
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- China
- Prior art keywords
- lithium battery
- soft package
- package lithium
- chemical conversion
- battery
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Classifications
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses the methods of soft package lithium battery chemical conversion exhaust, include the following steps：Step 1 in the battery formation clamp of soft package lithium battery clamping, connects chemical conversion power supply, Battery formation；Step 2, in chemical conversion, a stomata is pricked in soft package lithium battery airbag area by one acanthopore mechanism of mechanical hand-motion, and negative inspiratory pressure mechanism is adsorbed on the outside of stomata and the gas in soft package lithium battery is discharged；Step 3 seals the stomata of air-breathing after the gas discharge in soft package lithium battery；Step 4 after chemical conversion, after shearing soft package lithium battery airbag area has leachy part, seals the notch of soft package lithium battery.The gas in soft package lithium battery can be discharged in chemical conversion, therefore the volume of lithium battery pack pack can be reduced, reduce the production cost of lithium battery；In formation process, an acanthopore mechanism, can complete battery acanthopore exhaust all on a whole set of battery formation clamp reduces the cost of battery formation clamp so that battery formation clamp mechanism simplifies；Without being vented to battery always, the heat discharge of chemical conversion is avoided；After the completion of pumping, directly seals, gas leak will not be caused.
Description
Technical field
The present invention relates to Battery formation fields, and in particular to the method for soft package lithium battery chemical conversion exhaust.
Background technology
Soft package lithium battery will produce a large amount of gas, in order to not influence Battery formation in formation process, it is therefore desirable to will
The accommodation space of packaging bag, which is done to reach greatly, collects the Tail Gas that chemical conversion generates, after to be changed, then by the packet of redundance
Pack shearing, and sealing treatment is carried out to packaging bag, and operate in this way, although the tail gas for avoiding chemical conversion from generating can be realized to changing
At impacting, still, the waste of package stock can be caused, and the cost of material of packaging bag is higher, therefore increase lithium battery
Cost.
Chinese patent CN201621182247.0, a kind of automobile lithium-ion-power cell high-temperature clamp chemical synthesis gas exhausting device
Utility model patent in, disclose：It is that same cylinder stretches out the front and back pressure plate of promotion and the mutual propelling extrusion of the first puncturing mechanism,
When pressing plate completes the compression to battery core, while the acanthopore on the airbag of battery core is also completed, pricker punctures the gas in battery core
Bag simultaneously covers tight fit with the elastic needle of the second puncturing mechanism, makes to form a closed space around hole by sealing ring,
Prevent ambient atmos from entering battery core, battery core generates gas in charge and discharge process, is discharged by the air flue between pin hole and device.
In actual production, a set of battery formation clamp needs the multiple lithium batteries of clamping, is to need for technical solution disclosed in the patent
One exhaust apparatus is set on each battery, therefore the complicated of battery formation clamp can be caused, battery formation clamp it is of high cost；
And the scheme of the patent still needs to want acanthopore on battery, therefore, after the completion of changing into, also needs battery pack pack having gas
Bore portion is sheared, and is sealed to oral area.Moreover, during entire chemical conversion, the chemical conversion time is long, and the gas of generation is more slow
Slowly, therefore a direct exhaust, the efficiency being not only vented is low, and can be constantly by the heat discharge needed for chemical conversion.
Invention content
The present invention is to provide the method for soft package lithium battery chemical conversion exhaust, which can solve soft package lithium battery wave
The problem of taking packaging film, and can solve the problems, such as that battery formation clamp is complicated.
In order to solve the above technical problems, the technical scheme is that：The method of soft package lithium battery chemical conversion exhaust, including with
Lower step：
Step 1 in the battery formation clamp of soft package lithium battery clamping, connects chemical conversion power supply, Battery formation；
Step 2, in chemical conversion, a stomata, negative inspiratory pressure are pricked in soft package lithium battery airbag area by one acanthopore mechanism of mechanical hand-motion
Mechanism is adsorbed on the outside of stomata and the gas in soft package lithium battery is discharged；
Step 3 seals the stomata of air-breathing after the gas discharge in soft package lithium battery；
Step 4 after chemical conversion, after shearing soft package lithium battery airbag area has leachy part, seals soft package lithium battery
Notch.
Further, in the step 2, the sucker suction of the negative inspiratory pressure mechanism is in the outside of soft package lithium battery and gas
Hole is located in sucker.
Further, the exhaust end of the negative inspiratory pressure mechanism is connect with a tail gas collecting device pipeline.
Further, the negative inspiratory pressure mechanism is set in acanthopore mechanism.
Further, in the step 3, the heat sealing mechanism being arranged on felting needle mechanism seals stomata.
Further, the acanthopore mechanism includes the mounting base being connect with the manipulator, and the side at mounting base both ends is arranged
Plate is set to the linear guide of the mounting base side, two sliding blocks being slidably connected with the linear guide, one end and the side
The reverse-flighted screw that plate rotation connection, the other end are connect with the servo motor shaft being arranged on another side plate, with described pair
To the first nut of the left hand thread engagement of screw rod, the second nut with right-handed thread cooperation is fixedly connected with two sliding blocks respectively
The first installing arm and the second installing arm, be set to first installing arm free end on the inside of acupuncture treatment and the first resilient suction cups, if
Needle guard on the inside of second installing arm free end and the second resilient suction cups, the acupuncture treatment is positioned at first resilient suction cups
In cavity, the needle guard is located in the cavity of second resilient suction cups；First installing arm is equipped with aspirating hole, described negative
Pressure suction mechanism is connected to aspirating hole pipeline；The heat sealing mechanism includes first be set on the inside of first installing arm free end
Heat insulation, the second heat insulation being set on the inside of second installing arm free end, first be set on the inside of first heat insulation
Heating mantle, the second heating mantle being set on the inside of second heat insulation；First resilient suction cups and first installing arm
Connecting pin is stretched into the endoporus of first heating mantle；The connecting pin of second resilient suction cups and second installing arm is stretched into
In the endoporus of second heating mantle.
Compared with prior art, the method for soft package lithium battery chemical conversion exhaust of the present invention has the advantages that：
1, the gas in soft package lithium battery can be discharged in being melted into, therefore the volume of lithium battery pack pack can be reduced, reduced
The production cost of lithium battery；
2, in formation process, an acanthopore mechanism can complete battery acanthopore exhaust all on a whole set of battery formation clamp, therefore
So that battery formation clamp mechanism simplifies, the cost of battery formation clamp is reduced；
3, it is not necessarily to be vented to battery always, avoids the heat discharge of chemical conversion；
4, it after the completion of being evacuated, directly seals, gas leak will not be caused.
Description of the drawings
Fig. 1 is the structure chart of acanthopore mechanism described in the method for soft package lithium battery chemical conversion exhaust of the present invention；
Fig. 2 is the enlarged partial sectional view of acanthopore mechanism described in the method for soft package lithium battery chemical conversion exhaust of the present invention.
Specific implementation mode
Following specific implementation mode will be further illustrated in conjunction with above-mentioned attached drawing.
Hereinafter, a variety of specific details are elaborated, in order to provide the saturating of the concept to constituting described embodiment basis
Thorough understanding.However, it will be apparent to those skilled in the art that described embodiment can be in these no specific details
In some or all situations get off practice.In other cases, well-known processing step is not specifically described.
The method of soft package lithium battery chemical conversion exhaust, includes the following steps：
Step 1 in the battery formation clamp of soft package lithium battery clamping, connects chemical conversion power supply, Battery formation.
Step 2, in chemical conversion, a stomata is pricked in soft package lithium battery airbag area by one acanthopore mechanism 1 of mechanical hand-motion, and negative pressure is inhaled
Mechanism of qi structure is adsorbed on the outside of stomata and the gas in soft package lithium battery is discharged.
Step 3 seals the stomata of air-breathing after the gas discharge in soft package lithium battery.
Step 4 after chemical conversion, after shearing soft package lithium battery airbag area has leachy part, seals soft package lithium battery
Notch.
Further, in the step 2, the sucker suction of the negative inspiratory pressure mechanism is in the outside of soft package lithium battery and gas
Hole is located in sucker.By sucker, it is adsorbed on the outside of battery, can effectively avoid gas leak, and just has and arranges gas gas
Go out.
Further, the exhaust end of the negative inspiratory pressure mechanism is connect with a tail gas collecting device pipeline.Pass through exhaust collection
Device is collected, and is avoided that in gas leak to air and is polluted environment.
Further, the negative inspiratory pressure mechanism is set in acanthopore mechanism.
Further, in the step 3, the heat sealing mechanism 3 being arranged on felting needle mechanism 1 seals stomata.It is completed in exhaust
Afterwards, stomata is directly sealed, gas leak is avoided.
As shown in Figs. 1-2, the acanthopore mechanism 1 includes the mounting base 10 being connect with the manipulator, is arranged in mounting base
The side plate 11 at 10 both ends is set to the linear guide 12 of 10 side of the mounting base, two to be slidably connected with the linear guide 12
Sliding block 13, one end and the rotation connection of the side plate 11, the other end and the servo motor 14 being arranged on another side plate 11
The reverse-flighted screw 15 of shaft connection, the first nut with the left hand thread engagement of the reverse-flighted screw 15 coordinate with right-handed thread
The second nut, the first installing arm 16 and the second installing arm 17 being fixedly connected respectively with two sliding blocks 13, be set to it is described first pacify
The acupuncture treatment 18 on the inside of 16 free end of arm and the first resilient suction cups 19 are filled, the needle guard being set on the inside of 16 free end of the second installing arm
100 and second resilient suction cups 101, the acupuncture treatment 18 be located in the cavity of first resilient suction cups 19, the needle guard 100 is located at
In the cavity of second resilient suction cups 101.It is servo motor 14 that mechanical hand-motion spot-punching machine structure 1, which runs to a battery location,
Reverse-flighted screw 15 is driven to rotate, to drive the first nut and the second nut in opposite directions or reverse motions, to drive the first installation
Arm 16 and the second installing arm 17 move toward one another.When moving toward one another so that acupuncture treatment 18 reaches with the cooperation of needle guard 101 pricks on battery
Hole, meanwhile, the first resilient suction cups 19 and the second resilient suction cups 100 are adsorbed on the both sides of battery, and negative inspiratory pressure mechanism 2 will be in battery
Gas discharge.
First installing arm 16 is equipped with aspirating hole, and aspirating hole is connected to the first resilient suction cups 19, the negative inspiratory pressure
Mechanism 2 is connected to aspirating hole pipeline.The heat sealing mechanism 3 includes first be set on the inside of 16 free end of the first installing arm
Heat insulation 30, the second heat insulation 31 being set on the inside of 17 free end of the second installing arm are set in first heat insulation 30
First heating mantle 32 of side is set to the second heating mantle 33 of second heat insulation, 31 inside.First resilient suction cups 19 with
The connecting pin of first installing arm 16 is stretched into the endoporus of first heating mantle 32；Second resilient suction cups 100 and institute
The connecting pin for stating the second installing arm 17 is stretched into the endoporus of second heating mantle 33.After gas extraction in battery, servo
Motor 14 continues that the first installing arm 16 and the second installing arm 17 is driven to move toward one another so that the first heating mantle 32 and second heats
Set 33 mutually compresses packaging bag, is heated by the first heating mantle 32 and the second heating mantle 33, two layers of two packaging bags is mutually melted
It closes, and is the surrounding fusion around stomata, reach and sealing function is played to stomata.And the first heating mantle 32 and second adds
Include bottom case, heating plate, and the electrothermal tube or heating wire that are arranged between bottom case and heating plate in hot jacket 33；It is set on bottom case
In the screw via of connection, screw is connect across via with the first installing arm 16 or the second installing arm 17.Heating plate and bottom case spiral shell
Nail connection.Further, first partition block 30 and the second heat insulation 31 are played to the first installing arm 16 and the second installing arm 17
Heat-blocking action.
Further, manipulator may be provided at the side of battery formation clamp, may also be arranged in the cavity of entire formation device.
Compared with prior art, the method for soft package lithium battery chemical conversion exhaust of the present invention has the advantages that：
1, the gas in soft package lithium battery can be discharged in being melted into, therefore the volume of lithium battery pack pack can be reduced, reduced
The production cost of lithium battery；
2, in formation process, an acanthopore mechanism can complete battery acanthopore exhaust all on a whole set of battery formation clamp, therefore
So that battery formation clamp mechanism simplifies, the cost of battery formation clamp is reduced；
3, it is not necessarily to be vented to battery always, avoids the heat discharge of chemical conversion；
4, it after the completion of being evacuated, directly seals, gas leak will not be caused.
The present invention is not limited to above-mentioned specific embodiment, those skilled in the art from above-mentioned design,
Without performing creative labour, the various transformation made are within the scope of the present invention.
Claims (6)
1. the method for soft package lithium battery chemical conversion exhaust, which is characterized in that include the following steps：
Step 1 in the battery formation clamp of soft package lithium battery clamping, connects chemical conversion power supply, Battery formation；
Step 2, in chemical conversion, a stomata, negative inspiratory pressure mechanism are pricked in soft package lithium battery airbag area by one acanthopore mechanism of mechanical hand-motion
It is adsorbed on the outside of stomata and the gas in soft package lithium battery is discharged；
Step 3 seals the stomata of air-breathing after the gas discharge in soft package lithium battery；
Step 4 after chemical conversion, after shearing soft package lithium battery airbag area has leachy part, seals cutting for soft package lithium battery
Mouthful.
2. the method for soft package lithium battery chemical conversion exhaust as described in claim 1, it is characterised in that：It is described in the step 2
The sucker suction of negative inspiratory pressure mechanism is located in the outside of soft package lithium battery and stomata in sucker.
3. the method for soft package lithium battery chemical conversion exhaust as described in claim 1, it is characterised in that：The negative inspiratory pressure mechanism
Exhaust end is connect with a tail gas collecting device pipeline.
4. the method for soft package lithium battery chemical conversion exhaust as described in any one of claims 1-3, it is characterised in that：The negative pressure is inhaled
Mechanism of qi structure is set in acanthopore mechanism.
5. the method for soft package lithium battery chemical conversion exhaust as claimed in claim 3, it is characterised in that：In the step 3, setting
Heat sealing mechanism on felting needle mechanism seals stomata.
6. the method for soft package lithium battery chemical conversion exhaust as claimed in claim 5, it is characterised in that：Negative inspiratory pressure mechanism packet
The mounting base being connect with the manipulator is included, the side plate at mounting base both ends is set, the straight line set on the mounting base side is led
Rail, two sliding blocks being slidably connected with the linear guide, one end is with the side plate rotation connection, the other end and setting another
The reverse-flighted screw of servo motor shaft connection on the side plate, the first spiral shell with the left hand thread engagement of the reverse-flighted screw
Mother, the second nut with right-handed thread cooperation, the first installing arm and the second installing arm being fixedly connected respectively with two sliding blocks are set to
Acupuncture treatment on the inside of first installing arm free end and the first resilient suction cups, the needle being set on the inside of second installing arm free end
Set and the second resilient suction cups, in the cavity of first resilient suction cups, the needle guard is located at second bullet for the acupuncture treatment
In the cavity of property sucker；First installing arm is equipped with aspirating hole, and the negative inspiratory pressure mechanism is connected to aspirating hole pipeline；Institute
It includes the first heat insulation being set on the inside of first installing arm free end to state heat sealing mechanism, and it is free to be set to second installing arm
The second heat insulation of inside is held, the first heating mantle being set on the inside of first heat insulation is set on the inside of second heat insulation
The second heating mantle；The endoporus of first heating mantle is stretched into the connecting pin of first resilient suction cups and first installing arm
It is interior；The connecting pin of second resilient suction cups and second installing arm is stretched into the endoporus of second heating mantle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551161.8A CN108808141B (en) | 2018-05-31 | 2018-05-31 | Formation exhaust method for soft-package lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551161.8A CN108808141B (en) | 2018-05-31 | 2018-05-31 | Formation exhaust method for soft-package lithium battery |
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| CN108808141A true CN108808141A (en) | 2018-11-13 |
| CN108808141B CN108808141B (en) | 2020-07-07 |
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Cited By (7)
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| CN110600789A (en) * | 2019-09-30 | 2019-12-20 | 深圳爱商精密电子有限公司 | Opening formation and exhaust integrated device |
| CN110660958A (en) * | 2019-09-30 | 2020-01-07 | 深圳爱商精密电子有限公司 | Laminate polymer battery production synthesis production line |
| CN110707367A (en) * | 2019-09-30 | 2020-01-17 | 深圳爱商精密电子有限公司 | Opening formation method for soft package lithium ion battery production |
| CN110707366A (en) * | 2019-09-30 | 2020-01-17 | 深圳爱商精密电子有限公司 | Production method of polymer soft package battery |
| CN110993880A (en) * | 2019-12-06 | 2020-04-10 | 镇江成泰自动化技术有限公司 | Soft package lithium ion battery exhaust device and exhaust method |
| WO2021025337A1 (en) * | 2019-08-05 | 2021-02-11 | 주식회사 엘지화학 | Gas removal device for secondary battery, and gas removal method using same |
| EP4071909A4 (en) * | 2020-09-25 | 2024-07-17 | Lg Energy Solution Ltd | Gas removal apparatus and gas removal method for secondary battery |
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