CN105529429B - The electrolyte filling method of column lithium ion battery - Google Patents
The electrolyte filling method of column lithium ion battery Download PDFInfo
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- CN105529429B CN105529429B CN201510760833.2A CN201510760833A CN105529429B CN 105529429 B CN105529429 B CN 105529429B CN 201510760833 A CN201510760833 A CN 201510760833A CN 105529429 B CN105529429 B CN 105529429B
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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
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- 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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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a kind of electrolyte filling method of column lithium ion battery, comprise the following steps：S1, lithium battery is vacuumized, keep 1s~9s；S2, vacuum is let out to electrolyte cup chamber；S3, fluid injection is carried out to lithium battery；S4, nitrogen is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, then rushes down pressure；S5, lithium battery is vacuumized, keep 1s~9s, then rush down vacuum；S6, weight perform S4 S5 setting numbers；S7, nitrogen is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, then rushes down pressure, and fluid injection is completed.Pass through the electrolyte filling method of the column lithium ion battery of the present invention, it can ensure that a certain amount of electrolyte smoothly enters inside the cylindrical battery of the confined space, and absorption rate of the battery pole piece to electrolyte is increased, substantially increases high-energy-density cylindrical battery fluid injection efficiency.
Description
Technical field
The present invention relates to cell art, more particularly to a kind of electrolyte filling method of column lithium ion battery.
Background technology
At present, lithium rechargeable battery is widely used in the portable electronics such as mobile phone, notebook computer；Tradition
Automobile faces oily in short supply and pollution environmental drawbacks, living environment is increasingly paid attention to plus people, pure electric automobile welcomes
Development opportunity, the lithium-ion-power cell to match with pure electric automobile are also rapidly developed；In addition, energy-storage system has
Energy storage energy in the case of electric energy abundance, energy advantage is provided in the situation of electric energy deficiency, in power network, car and family's storing up electricity etc.
More and more paid attention to and applied in field.
With attention of the lifting and country of quality of life to energy-saving and emission-reduction, the lithium ion battery of high-energy-density is increasingly
Welcome by consumer.In the battery structure of all shapes, the battery volume of cylindrical structure be it is minimum, it is corresponding
Volume energy density is maximum, and column lithium ion battery also has rapid heat dissipation, and all directions are under pressure the advantages that uniform, institute
It is applied with the lithium ion battery of cylinder and widest.
But a certain amount of electrolyte is irrigated into the column lithium ion battery of certain volume within a certain period of time,
The highly difficult thing of part due to being limited by inside battery space, especially for using winding method big cylindrical battery,
The work of this part becomes more difficult.
The content of the invention
For above-mentioned state of the art, the technical problems to be solved by the invention are, there is provided a kind of fluid injection efficiency high
Column lithium ion battery electrolyte filling method.
In order to solve the above-mentioned technical problem, a kind of electrolyte filling method of column lithium ion battery of present invention offer, including with
Lower step：
S1, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s；To lithium to be injected
Battery is vacuumized, and takes out inside battery air, inside battery is in negative pressure, when being advantageous to fluid injection, electrolyte falls
Enter into battery and absorption of the pole piece to electrolyte.
S2, vacuum is let out to electrolyte cup chamber, vacuum is reached -0.01~-0.03Mpa；Lithium battery is carried out to let out vacuum,
The vacuum in electrolyte cup chamber is released, when being advantageous to fluid injection, electrolyte smoothly enters battery.
S3, fluid injection is carried out to lithium battery；
S4, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, so
After rush down pressure；It is passed through nitrogen and allows in glass chamber and be in malleation, because inside cylindrical lithium battery being negative pressure, under differential pressure, accelerates electrolyte
Into inside cylindrical battery；Moreover, pressure reaches 2.7~3.0Mpa, be advantageous to electrolyte under high pressure and enter limited circle
Post inside battery.
S5, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s, then rushes down vacuum, makes true
Reciprocal of duty cycle reaches -0.01~-0.03Mpa；Battery is vacuumized, allows cylindrical lithium battery inside to be in negative pressure, increases pole piece pair
The absorption rate of electrolyte.
S6, weight perform S4-S5 setting numbers；
S7, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, so
After rush down pressure, fluid injection is completed.Progress finally applies high pressure nitrogen, under high pressure, is advantageous to electrolyte and enters limited cylindrical battery
It is internal.
In a preferred embodiment, in step S1, the time vacuumized to lithium battery is 10s~240s.
In a preferred embodiment, in step S2, the time for letting out vacuum is 2s~15s.
In a preferred embodiment, in step S4, the time for rushing down pressure is 1s~10s.
In a preferred embodiment, in step S5, the time vacuumized is 10s~120s, let out time of vacuum for 2s~
15s。
In a preferred embodiment, in step S6, setting is this time 1-20 times.
In a preferred embodiment, in step S7, the time for rushing down pressure is 1s~10s.
A kind of electrolyte filling method of column lithium ion battery provided by the invention, comprises the following steps：
S1, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s；
S2, vacuum is let out to electrolyte cup chamber, vacuum is reached -0.01~-0.03Mpa；
S3, fluid injection is carried out to lithium battery；
S4, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, so
After rush down pressure；
S5, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s, then rushes down vacuum, makes true
Reciprocal of duty cycle reaches -0.01~-0.03Mpa；
S6, weight perform S4-S5 setting numbers；
S7, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, so
After rush down pressure, complete first time fluid injection；
S8, the battery standing 1h~6h for completing first time fluid injection；
S9, S1-S7 is repeated, complete second of fluid injection.
Pass through the electrolyte filling method of the column lithium ion battery of the present invention, it is ensured that a certain amount of electrolyte, which smoothly enters, to be had
Inside the cylindrical battery for limiting space, and absorption rate of the battery pole piece to electrolyte is increased, substantially increase high-energy-density
Cylindrical battery fluid injection efficiency.
Embodiment
Below by embodiment, the present invention is described in detail.It should be noted that in the case where not conflicting, below
Feature in each embodiment and embodiment can be mutually combined.
Embodiment one
Step S0, fluid injection prepares.To be injected battery is put in after being weighed on weighing system with barcode scanning gun to be injected
Battery carries out barcode scanning record weight, is that 165.0g is set for fluid injection by regulation reservoir quantity Z1, then presses battery to be injected
Order is put on filling machine bracket successively；
Step S1, lithium battery is carried out vacuumizing 10s, vacuum reaches -0.07Mpa, keeps 5s；
Step S2, vacuum 3s is let out to electrolyte cup chamber, vacuum is reached -0.01Mpa；
Step S3, fluid injection 10s is carried out to lithium battery；
Step S4, nitrogen 50s is passed through to electrolyte cup chamber, pressure reaches 3.0Mpa, keeps 80s, then rushes down pressure 5s；
Step S5,10s is vacuumized to lithium battery, vacuum reaches -0.07Mpa, keeps 5s, then rushes down vacuum 3s, makes true
Reciprocal of duty cycle reaches -0.01Mpa；
Step S6, the number that weight performs S3-S4 is 5 times；
Step S7, nitrogen 50s is passed through to electrolyte cup chamber, pressure reaches 3.0Mpa, keeps 80s, then rushes down pressure 5s, fluid injection
Complete.By the battery of fluid injection is completed, it is put on weighing system and carries out barcode scanning record weight of weighing.
Embodiment two
Step S0, fluid injection prepares.To be injected battery is put in after being weighed on weighing system with barcode scanning gun to be injected
Battery carries out barcode scanning record weight, is that 160.0g is set for fluid injection by regulation reservoir quantity Z1, then presses battery to be injected
Order is put on filling machine bracket successively；
Step S1, lithium battery is carried out vacuumizing 60S, vacuum reaches -0.1Mpa, keeps 5s；
Step S2, vacuum 10s is let out to electrolyte cup chamber, vacuum is reached -0.03Mpa；
Step S3, fluid injection 10s is carried out to lithium battery；
Step S4, nitrogen 180s is passed through to electrolyte cup chamber, pressure reaches 2.7Mpa, keeps 200s, then rushes down pressure 10s；
Step S5,120 are vacuumized to lithium battery, vacuum reaches -0.1Mpa, keeps 9s, then rushes down vacuum, make vacuum
Reach -0.03Mpa；
Step S6, the number that weight performs S3-S4 is 2 times；
Step S7, it is passed through nitrogen 20s to electrolyte cup chamber, pressure reaches 2.7Mpa, keeps 50s, then rushes down pressure, completion the
Fluid injection；
Step S8, the battery standing 3h for completing first time fluid injection；
Step S9, battery to be injected is put on filling machine bracket successively in order, is 35.0g by regulation reservoir quantity Z1
It is set for fluid injection；
Step S10, lithium battery being carried out vacuumizing 60S, vacuum reaches -0.1Mpa, keeps 5s, then lets out vacuum 10s,
Vacuum is set to reach -0.03Mpa；
Step S11, fluid injection 10s is carried out to lithium battery；
Step S12, nitrogen 180s is passed through to electrolyte cup chamber, pressure reaches 2.7Mpa, keeps 200s, then rushes down pressure 10s；
Step S13,120 are vacuumized to lithium battery, vacuum reaches -0.1Mpa, keeps 9s, then rushes down vacuum, make vacuum
Degree reaches -0.03Mpa；
Step S14, the number that weight performs S12-S13 is 2 times；
Step S15, nitrogen 20s is passed through to electrolyte cup chamber, pressure reaches 2.7Mpa, keeps 50s, then rushes down pressure, completes
Second of fluid injection, fluid injection are completed.
Pass through the electrolyte filling method of the column lithium ion battery of the present invention, it is ensured that a certain amount of electrolyte, which smoothly enters, to be had
Inside the cylindrical battery for limiting space, and absorption rate of the battery pole piece to electrolyte is increased, substantially increase high-energy-density
Cylindrical battery fluid injection efficiency.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of electrolyte filling method of column lithium ion battery, it is characterised in that comprise the following steps：
S1, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s；
S2, vacuum is let out to electrolyte cup chamber, vacuum is reached -0.01~-0.03Mpa；
S3, fluid injection is carried out to lithium battery；
S4, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, then rushes down
Pressure；
S5, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s, then rushes down vacuum, make vacuum
Reach -0.01~-0.03Mpa；
S6, weight perform S4-S5 setting numbers；
S7, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, then rushes down
Pressure, fluid injection are completed.
2. the electrolyte filling method of column lithium ion battery according to claim 1, it is characterised in that in step S1, to lithium
The time of battery vacuum-pumping is 10s~240s.
3. the electrolyte filling method of column lithium ion battery according to claim 1, it is characterised in that in step S2, let out true
The empty time is 2s~15s.
4. the electrolyte filling method of column lithium ion battery according to claim 1, it is characterised in that in step S4, rush down pressure
Time be 1s~10s.
5. the electrolyte filling method of column lithium ion battery according to claim 1, it is characterised in that in step S5, take out true
The empty time is 10s~120s, and the time for letting out vacuum is 2s~15s.
6. the electrolyte filling method of column lithium ion battery according to claim 1, it is characterised in that in step S6, setting
It is this time 1-20 times.
7. the electrolyte filling method of column lithium ion battery according to claim 1, it is characterised in that in step S7, rush down pressure
Time be 1s~10s.
8. a kind of electrolyte filling method of column lithium ion battery, it is characterised in that comprise the following steps：
S1, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s；
S2, vacuum is let out to electrolyte cup chamber, vacuum is reached -0.01~-0.03Mpa；
S3, fluid injection is carried out to lithium battery；
S4, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, then rushes down
Pressure；
S5, lithium battery is vacuumized, vacuum reaches -0.07~-0.1Mpa, keeps 1s~9s, then rushes down vacuum, make vacuum
Reach -0.01~-0.03Mpa；
S6, weight perform S4-S5 setting numbers；
S7, nitrogen 10s~180s is passed through to electrolyte cup chamber, pressure reaches 2.7~3.0Mpa, keeps 50~200s, then rushes down
Pressure, complete first time fluid injection；
S8, the battery standing 1h~6h for completing first time fluid injection；
S9, S1-S7 is repeated, complete second of fluid injection.
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| CN201510760833.2A CN105529429B (en) | 2015-11-10 | 2015-11-10 | The electrolyte filling method of column lithium ion battery |
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| CN201510760833.2A CN105529429B (en) | 2015-11-10 | 2015-11-10 | The electrolyte filling method of column lithium ion battery |
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| CN105529429B true CN105529429B (en) | 2018-02-13 |
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| CN106469831B (en) * | 2016-09-26 | 2018-10-19 | 浙江超威创元实业有限公司 | A kind of polymer lithium ion battery cell ageing process |
| CN106531954A (en) * | 2016-11-24 | 2017-03-22 | 天津市捷威动力工业有限公司 | Method for accelerating liquid absorption of lithium ion battery |
| CN107768733B (en) * | 2017-10-13 | 2019-12-03 | 江苏海四达电源股份有限公司 | A kind of lithium battery and preparation method thereof |
| CN107834017B (en) * | 2017-11-02 | 2024-03-19 | 利信(江苏)能源科技有限责任公司 | Isobaric liquid injection device and method for lithium battery |
| CN108054337A (en) * | 2017-12-30 | 2018-05-18 | 山东精工电子科技有限公司 | Lithium ion battery liquid injection method |
| CN108054338A (en) * | 2018-01-11 | 2018-05-18 | 中盐安徽红四方锂电有限公司 | A kind of liquid injection process of lithium-ion-power cell |
| CN108539116B (en) * | 2018-04-08 | 2021-01-29 | 贵州贵航新能源科技有限公司 | Method for secondary liquid injection of aluminum-shell lithium ion battery |
| CN111048736A (en) * | 2019-06-26 | 2020-04-21 | 荷贝克电源系统（溧阳）有限公司 | Liquid injection process for nickel-cadmium storage battery |
| CN112038562A (en) * | 2020-09-28 | 2020-12-04 | 合肥国轩高科动力能源有限公司 | Liquid injection process for end face welding cylindrical lithium ion battery |
| CN114628867A (en) * | 2020-12-14 | 2022-06-14 | 纪顺机电工业股份有限公司 | Electrolyte injection method for lithium battery |
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| CN101030635A (en) * | 2006-12-07 | 2007-09-05 | 天津力神电池股份有限公司 | Method for injecting cylindrical lithium-ion battery |
| CN101944585B (en) * | 2010-08-23 | 2013-07-03 | 八叶(厦门)新能源科技有限公司 | Injection method for lithium battery |
| CN103872381B (en) * | 2012-12-17 | 2015-12-09 | 北汽福田汽车股份有限公司 | A kind of fluid injection of electrokinetic cell leaves standstill method |
| CN104466083A (en) * | 2014-12-11 | 2015-03-25 | 百顺松涛（天津）动力电池科技发展有限公司 | Solution injection method in production process of lithium battery |
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Address after: 056300 dongchangyuan village, Wu'an city, Handan City, Hebei Province Patentee after: Hebei Gree titanium new energy Co.,Ltd. Address before: 056300 dongchangyuan village, Wu'an city, Handan City, Hebei Province Patentee before: HEBEI YINLONG NEW ENERGY Co.,Ltd. |
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Effective date of registration: 20220727 Address after: 056300 dongchangyuan village, Wu'an city, Handan City, Hebei Province Patentee after: Hebei Gree titanium new energy Co.,Ltd. Patentee after: Gree titanium new energy Co.,Ltd. Address before: 056300 dongchangyuan village, Wu'an city, Handan City, Hebei Province Patentee before: Hebei Gree titanium new energy Co.,Ltd. |
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