CN106531954A - Method for accelerating liquid absorption of lithium ion battery - Google Patents
Method for accelerating liquid absorption of lithium ion battery Download PDFInfo
- Publication number
- CN106531954A CN106531954A CN201611047630.XA CN201611047630A CN106531954A CN 106531954 A CN106531954 A CN 106531954A CN 201611047630 A CN201611047630 A CN 201611047630A CN 106531954 A CN106531954 A CN 106531954A
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- Prior art keywords
- lithium ion
- ion battery
- battery
- external force
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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
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a method for accelerating liquid absorption of a lithium ion battery. The battery is processed by one or more than two kinds of methods of primary external force flapping, primary ultrasonic wave processing or repeated vacuumizing during liquid injecting of the lithium ion battery; and/or after liquid injecting of the lithium ion battery is performed, the lithium ion battery is processed by one or more than two kinds of methods of secondary external force flapping, secondary ultrasonic wave processing or temperature impacting. By adoption of the method for accelerating liquid absorption of the lithium ion battery, the processing time can be reduced, the product quality and market competitiveness can be forcefully improved, and wide application in production can be facilitated, so that the method is of significant meaning to production practice.
Description
Technical field
The invention belongs to lithium-ion-power cell, more particularly to a kind of method for accelerating lithium ion battery imbibition.
Background technology
With increasing for haze number of days, country starts to incrementally increase to the input of new forms of energy industry, and lithium ion power is electric
An important component part of the pond as new-energy automobile, because the characteristics such as its environmental protection, high-energy output cause extensively pass
Note, at present, with the development of technology and stepping up for production efficiency, new-energy automobile has progressively come into huge numbers of families.And be
Seize market, the production efficiency of Ge great lithium-ion-power cells manufacturing enterprise and also increasingly paid close attention to by people, in order to
Improve the production efficiency of battery, it is necessary to efficiency, reduction in the numbers of seconds are improved in each production process of lithium-ion-power cell.
Lithium-ion-power cell is after vacuum liquid filling is carried out, in order to allow electrolyte sufficiently to infiltrate, general using normal at present
The method that temperature stands, typically at 0.5-3 days, production efficiency is relatively low for time of repose, while in battery standing, it is necessary to by temperature
Degree and humidity are all controlled within the specific limits, and this also increased the production cost of battery to a certain extent, for competition increasingly
For fierce new forms of energy industry, it is totally unfavorable.
The content of the invention
In view of this, it is an object of the invention to provide a kind of method for accelerating lithium ion battery imbibition, reduces battery liquid-filling
Time of repose afterwards, effectively improves product quality and the market competitiveness, is conducive to widely applying aborning, with weight
Big production practices meaning.
The technical scheme is that what is be achieved in that：
A kind of method for accelerating lithium ion battery imbibition, while lithium ion battery liquid injection, while adopting an external force
Pat, a ultrasonication or one or more the method in vacuumizing repeatedly are processed to battery；And/or
After lithium ion battery liquid injection, at the same using secondary external force pat, twice ultrasonic ripple process or temperature shock in one or two
Method above is processed to lithium ion battery.
Further, the beating power scope that an external force is patted, secondary external force is patted is 10N-10000N, preferably
50N-500N, each beating time are 10min-1h.
Further, a ultrasonication, the frequency range of twice ultrasonic ripple process are 1MHz-30MHz, often
The time of secondary ultrasonication is 10min-1h.
Further, temperature shock is carried out to lithium ion battery, the temperature range of the temperature shock is 30 DEG C -65 DEG C,
The time that each temperature keeps is 30min-2h；Preferably, 1h is kept at 60 DEG C, 0.5h is kept at 40 DEG C, keep at 55 DEG C
1.5h。
Further, lithium ion battery is vacuumized repeatedly, the number of times for vacuumizing repeatedly is 2-10 time, vacuum
Scope is -95Kpa -20Kpa, and each pumpdown time is 1min-15min.
Further, while lithium ion battery liquid injection, at the same patted using external force, a ultrasonication and
Vacuumize repeatedly three kinds of methods to process battery；And after lithium ion battery liquid injection, while patted using secondary external force,
The process of twice ultrasonic ripple and three kinds of methods of temperature shock are processed to lithium ion battery.
Further, while lithium ion battery liquid injection, at the same patted using external force, a ultrasonication and
Vacuumize repeatedly three kinds of methods to process battery；And after lithium ion battery liquid injection, while being patted using secondary external force
Lithium ion battery is processed with two methods of temperature shock.
Further, the cathode active material in lithium ion battery is LiFePO4、LiMn2O2、LiNixCoyMnzO2,
0 ＜ x, y, z ＜ 1, one or more in x+y+z=1 are mixed to form by different proportion.
Further, the negative electrode active material material in lithium ion battery is graphite, MCMB, hard carbon, soft carbon
In one or more be mixed to form by different proportion.
Further, the barrier film in lithium ion battery is polyethylene, polypropylene individual layer, multilayer and its one side, dual coating
The barrier film of ceramics.
Further, the shell of lithium ion battery is box hat, aluminum hull, plastic housing, the one kind in aluminum-plastic packaging.
Relative to prior art, the present invention is had the advantage that：
The invention provides a kind of method for accelerating lithium ion battery imbibition, patted using temperature shock, external force after fluid injection,
Ultrasonication, vacuumize repeatedly etc. in method one or more be used in conjunction with, saving is made the time, effectively improves
Product quality and the market competitiveness, are conducive to widely applying aborning, are of great practical significance.
Description of the drawings
Fig. 1 is the process chart of lithium ion battery making in embodiment.
Specific embodiment
The present invention is elaborated with comparative example below with reference to the accompanying drawings and in conjunction with specific embodiments.
Embodiment 1：
A kind of method for accelerating lithium ion battery imbibition, the manufacturing process of wherein lithium ion battery comprise the steps：
Respectively the anode and cathode slurry of lithium ion battery is homogenized, cathode active material used in homogenization process
For LiNi0.33Co0.33Mn0.34O2, negative electrode active material material is graphite, respectively in plus plate current-collecting body/negative current collector after homogenate
On carry out coating operations, roll and obtain positive and negative plate, then positive/negative plate is dried, by positive plate, barrier film, negative plate
Lithium ion battery cell is made through the mode of lamination, its septation is polyethylene, battery core loading inside the shell is dried, its
Middle shell is aluminum-plastic packaging shell, fluid injection is carried out to the battery core after drying, is stood, wherein using the side for accelerating lithium ion battery imbibition
Method promotes battery imbibition, and then again battery core is sealed, lithium ion battery is ultimately formed.
A kind of method for accelerating lithium ion battery imbibition, comprises the steps：
While lithium ion battery liquid injection, battery is vacuumized repeatedly in a vacuum tank, be first evacuated to vacuum
Degree -65Kpa, keeps 1min, and vacuum is dropped to -35Kpa then, keeps 2min, continues to be evacuated to vacuum -90Kpa, protects
2min is held, vacuum is down to into -20Kpa then, keep 5min；While vacuumizing, by the dress of one or so manipulator
Is put and lithium ion battery is proceeded by an external force beating, the beating time is 10min, and beating power is 50N, at the same time, external
Ultrasonic unit produces frequency and a ultrasonication is carried out to battery for the ultrasonic wave of 15MHz, and process time is 15min；It is whole
After the time-consuming 15min of individual flow process, lithium ion battery liquid injection is completed, and starts to stand；While standing, the lithium-ion electric that fluid injection is completed
Pond proceeds by temperature shock in being put into incubator, arrange 60 DEG C of 1h；40℃0.5h；55 DEG C of 1.5h, flow process terminate, and take 3h, place
The battery managed proceeds subsequent handling, and the internal resistance of battery is measured after battery has carried out flow process.
Embodiment 2：
A kind of method for accelerating lithium ion battery imbibition, the wherein manufacturing process of lithium ion battery are lived with embodiment 1, positive pole
Property material adopts LiMn2O2；Negative electrode active material material adopts soft carbon；Barrier film is one side coating polypropylene material；Shell is
Aluminum hull.
A kind of method for accelerating lithium ion battery imbibition, comprises the steps：
While lithium ion battery liquid injection, battery is vacuumized repeatedly in a vacuum tank, be first evacuated to vacuum
Degree -95Kpa, keeps 2min, and vacuum is dropped to -25Kpa then, keeps 1min, continues to be evacuated to vacuum -80Kpa, protects
3min is held, vacuum is down to into -20Kpa then, keep 5min；While vacuumizing, by the dress of one or so manipulator
Is put and lithium ion battery is proceeded by an external force beating, the beating time is 15min, and beating power is 1000N, at the same time, outward
The ultrasonic wave that ultrasonic unit generation frequency is put for 15MHz carries out a ultrasonication to battery；Process time is 10min；
After the time-consuming 15min of whole flow process, lithium ion battery liquid injection is completed, and starts to stand；While standing, the lithium ion that fluid injection is completed
Battery proceeds by temperature shock in being put into incubator, arrange 65 DEG C of 0.5h；35℃1h；30 DEG C of 1h, at the same time, manipulator is to lithium
Ion battery carries out secondary external force beating, pats time 30min, pats power 100N, and at the same time, ultrasonic unit produces frequency
Ultrasonic wave for 10MHz carries out twice ultrasonic ripple process to battery, and process time is 1h, and whole flow process 2.5h, flow process terminate, locate
The battery managed proceeds subsequent handling, and the internal resistance of battery is measured after battery has carried out flow process.
Embodiment 3：
A kind of method for accelerating lithium ion battery imbibition, the wherein manufacturing process of lithium ion battery are lived with embodiment 1, positive pole
Property material LiNi0.8Co0.1Mn0.1O2；It is 1 in mass ratio that negative electrode active material material is graphite and soft carbon:1 ratio is mixed
The mixture that conjunction is obtained；Barrier film is two-sided painting ceramics polyethylene diagrams；Shell is plastic-aluminum flexible packing.
A kind of method for accelerating lithium ion battery imbibition, comprises the steps：
While lithium ion battery liquid injection, battery is vacuumized repeatedly in a vacuum tank, be first evacuated to vacuum
Degree -85Kpa, keeps 5min, and vacuum is dropped to -20Kpa then, keeps 1min, continues to be evacuated to vacuum -60Kpa, protects
2min is held, vacuum is down to into -20Kpa then, keep 5min；At the same time, it is 8MHz that external ultrasonic unit produces frequency
Ultrasonic wave a ultrasonication is carried out to battery；Process time is 20min；After the time-consuming 20min of whole flow process, lithium-ion electric
Pond fluid injection is completed, and starts to stand；While standing, the lithium ion battery that fluid injection is completed is put in incubator and proceeds by temperature punching
Hit, 65 DEG C of 2h are set；45℃1.5h；30 DEG C of 1h, at the same time, manipulator carries out secondary external force beating to lithium ion battery, claps
Time 1h is beaten, power 350N is patted, whole flow process 4.5h, flow process terminate, and the battery for having processed proceeds subsequent handling, treats battery
The internal resistance of battery is measured after having carried out flow process.
Comparative example：
The lithium ion battery of normal production procedure, fluid injection take 1h, 24h are stood after fluid injection, then carry out subsequent handling, treat
Battery measures the internal resistance of battery after being normally carried out production procedure.
Embodiment 1, embodiment 2 and embodiment 3 is presented herein below carries out internal resistance with the battery after normal production procedure in comparative example
Contrasted, comparing result is as follows：
From above table as can be seen that while lithium ion battery liquid injection, while being patted using external force, once
Ultrasonication or one or more the method in vacuumizing repeatedly are processed to battery, after lithium ion fluid injection,
Simultaneously using one or more the method in the beating of secondary external force, the process of twice ultrasonic ripple or temperature shock to lithium ion
Battery is processed, and the time can shorten more than 20h, while the battery one that internal resistance is produced with normal flow after battery is made
Cause, be favorably improved production efficiency.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. it is a kind of accelerate lithium ion battery imbibition method, it is characterised in that：While lithium ion battery liquid injection, while adopting
External force is patted, a ultrasonication or one or more the method in vacuumizing repeatedly to battery at
Reason；And/or after lithium ion battery liquid injection, while using in the beating of secondary external force, the process of twice ultrasonic ripple or temperature shock
One or more method is processed to lithium ion battery.
2. it is according to claim 1 accelerate lithium ion battery imbibition method, it is characterised in that：External force is clapped
Beat, the beating power scope that secondary external force is patted is 10N-10000N, preferred 50N-500N, each beating time is 10min-
1h。
3. it is according to claim 1 accelerate lithium ion battery imbibition method, it is characterised in that：At ultrasonic wave
Reason, the frequency range of twice ultrasonic ripple process are 1MHz-30MHz, and the time of each ultrasonication is 10min-1h.
4. it is according to claim 1 accelerate lithium ion battery imbibition method, it is characterised in that：Lithium ion battery is carried out
Temperature shock, the temperature range of the temperature shock is 30 DEG C -65 DEG C, and the time that each temperature keeps is 30min-2h.
5. it is according to claim 1 accelerate lithium ion battery imbibition method, it is characterised in that：Lithium ion battery is carried out
Vacuumize repeatedly, the number of times for vacuumizing repeatedly is 2-10 time, the scope of vacuum is -95Kpa -20Kpa, when vacuumizing every time
Between be 1min-15min.
6. according to any one of claim 1-5 acceleration lithium ion battery imbibition method, it is characterised in that：In lithium ion
While battery liquid-filling, while vacuumizing using an external force beating, a ultrasonication and repeatedly three kinds of methods to battery
Processed；And after lithium ion battery liquid injection, while being patted using secondary external force, twice ultrasonic ripple is processed and temperature shock
Three kinds of methods are processed to lithium ion battery.
7. according to any one of claim 1-5 acceleration lithium ion battery imbibition method, it is characterised in that：In lithium ion
While battery liquid-filling, while vacuumizing using an external force beating, a ultrasonication and repeatedly three kinds of methods to battery
Processed；And after lithium ion battery liquid injection, at the same using secondary external force pat and two methods of temperature shock to lithium from
Sub- battery is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047630.XA CN106531954A (en) | 2016-11-24 | 2016-11-24 | Method for accelerating liquid absorption of lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047630.XA CN106531954A (en) | 2016-11-24 | 2016-11-24 | Method for accelerating liquid absorption of lithium ion battery |
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| CN106531954A true CN106531954A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611047630.XA Pending CN106531954A (en) | 2016-11-24 | 2016-11-24 | Method for accelerating liquid absorption of lithium ion battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688032A (en) * | 2021-02-01 | 2021-04-20 | 河南电池研究院有限公司 | Liquid injection method of soft package battery |
| CN113113739A (en) * | 2021-02-23 | 2021-07-13 | 惠州市恒泰科技股份有限公司 | High-voltage lithium ion battery, battery pole piece and infiltration method thereof |
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| CN103378372A (en) * | 2012-04-28 | 2013-10-30 | 深圳拓邦股份有限公司 | Method for placing and aging lithium ion battery |
| CN105428721A (en) * | 2015-11-04 | 2016-03-23 | 中航锂电（洛阳）有限公司 | Injected solution accelerated absorption method for soft package lithium ion battery and soft package lithium ion battery |
| CN105529429A (en) * | 2015-11-10 | 2016-04-27 | 河北银隆新能源有限公司 | Liquid filling method for cylindrical lithium-ion battery |
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Patent Citations (5)
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| CN102709511A (en) * | 2012-01-09 | 2012-10-03 | 宁德新能源科技有限公司 | Electrolyte filling device of lithium ion batteries |
| CN102646809A (en) * | 2012-04-23 | 2012-08-22 | 宁德新能源科技有限公司 | Filling and activating method for flexible-packaging lithium ion battery |
| CN103378372A (en) * | 2012-04-28 | 2013-10-30 | 深圳拓邦股份有限公司 | Method for placing and aging lithium ion battery |
| CN105428721A (en) * | 2015-11-04 | 2016-03-23 | 中航锂电（洛阳）有限公司 | Injected solution accelerated absorption method for soft package lithium ion battery and soft package lithium ion battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112688032A (en) * | 2021-02-01 | 2021-04-20 | 河南电池研究院有限公司 | Liquid injection method of soft package battery |
| CN113113739A (en) * | 2021-02-23 | 2021-07-13 | 惠州市恒泰科技股份有限公司 | High-voltage lithium ion battery, battery pole piece and infiltration method thereof |
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| PB01 | Publication | ||
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Application publication date: 20170322 |