CN206931649U - Column type Li-ion cell filling device - Google Patents
Column type Li-ion cell filling device Download PDFInfo
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- CN206931649U CN206931649U CN201720803506.5U CN201720803506U CN206931649U CN 206931649 U CN206931649 U CN 206931649U CN 201720803506 U CN201720803506 U CN 201720803506U CN 206931649 U CN206931649 U CN 206931649U
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- injected
- battery
- injection needle
- column type
- filling device
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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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- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model provides a kind of column type Li-ion cell filling device, liquid storing barrel including elastic seal ring, for storing electrolyte and the cylinder for the to be injected battery vacuum-pumping upright to anode ear, the top of the cylinder is connected with fluid injection frame, and the side wall of the cylinder is provided with the pallet with the fixed battery to be injected；The bottom of the fluid injection frame is provided with vacuum cavity, is fixed in the vacuum cavity and injection needle is housed, the liquid storing barrel is connected by liquid injecting pipeline with the injection needle, and topping-up pump is provided with the liquid injecting pipeline；The fluid injection frame, which moves down, to be inserted the injection needle in the interstitial hole of the battery to be injected, the elastic seal ring puts the slot rolling step on the battery to be injected, by after the battery vacuum-pumping to be injected, the electrolyte is pumped into the injection needle to inject in the battery to be injected the cylinder by the topping-up pump by the liquid injecting pipeline.The device, which saves, saves manpower and equipment cost, improves production efficiency.
Description
Technical field
The utility model belongs to cell apparatus field, is to be related to a kind of column type Li-ion cell filling more specifically
Device.
Background technology
With the continuous development of hyundai electronicses information technology, lithium ion battery with its energy density it is high, have extended cycle life
Advantage, turn into the indispensable electrochmical power source of hyundai electronicses information products.Wherein, cylindrical lithium ion battery standardizes journey with it
The superiority developments such as degree is high, be adapted to large-scale production, cost is low, uniformity is good, energy density is high are rapid.
At present, also there is following deficiency in the fluid injection process in cylindrical lithium ion battery manufacturing process：Anode ear after fluid injection
And at slot rolling step because of residual fraction electrolyte and its crystallization, it is necessary to being wiped at anode ear and slot rolling step, if do not located
Reason is fallen, and in follow-up anode ear and block laser welding, its fraction defective is significantly raised；And the electrolyte remained at slot rolling step
Such as wiped clean not in time, by sealing, be melted into, after partial volume, the increase of battery core air pressure inside, and the electrolysis remained at slot rolling step
Liquid is extruded to faucal (cylindrical shell is nickel plated steel shell, and by the punching press of sealing die, coating is damaged) and sky because of capillarity
Moisture in gas combines to form electrochemical corrosion box hat, so as to influence battery core quality and outward appearance.Solve the usual of this problem at present
Way is the entrained electrolyte at manual or automatic wiping anode ear or slot rolling step, this effect that has some improvement, but increase
Two procedures are increased by certain manufacturing cost, and time of the naked battery core after fluid injection exposed to fluid injection room lengthens, so as to improve
The water suction risk of naked battery core.
Utility model content
The purpose of this utility model is to provide a kind of column type Li-ion cell filling device, filled with solving existing fluid injection
Poor sealing when putting fluid injection, so that electrolyte is remained at anode ear and slot rolling step, so as to influence battery core quality and increasing
Add the technical problem of subsequent technique cost.
To achieve the above object, the technical solution adopted in the utility model is：A kind of column type Li-ion cell filling dress
Put, including elastic seal ring, the liquid storing barrel for storing electrolyte and for the to be injected battery vacuum-pumping upright to anode ear
Cylinder, the top of the cylinder is connected with fluid injection frame, and the side wall of the cylinder is provided with the fixed battery to be injected
Pallet；The bottom of the fluid injection frame is provided with vacuum cavity, is fixed in the vacuum cavity and injection needle, the liquid storing barrel are housed
It is connected by liquid injecting pipeline with the injection needle, topping-up pump is provided with the liquid injecting pipeline；
The fluid injection frame, which moves down, to be inserted the injection needle in the interstitial hole of the battery to be injected, and the cylinder is by described in
After battery vacuum-pumping to be injected, the elastic seal ring puts the slot rolling step on the battery to be injected, and the topping-up pump will
The electrolyte is pumped into the injection needle by the liquid injecting pipeline to inject in the battery to be injected.
Further, the both sides of the fluid injection frame are respectively arranged with linear bearing in order to make to move down on the fluid injection frame
It is dynamic.
Further, it is fixed in the vacuum cavity that multiple injection needles are housed to multiple batteries to be injected
Inject the electrolyte.
Further, the elastic seal ring is plastic seal ring or rubber seal.
Further, the topping-up pump is electric precise topping-up pump.
Further, the injection needle is stainless steel injection needle.
Further, the external diameter of the injection needle is less than the internal diameter of the interstitial hole of the battery to be injected.
Further, when the injection needle is inserted in the interstitial hole of the battery to be injected, the bottom of the injection needle with
The bottom distance of the battery to be injected is 1mm-5mm.
Further, the internal diameter of the injection needle is 1.5mm-3.5mm.
Further, the length of the injection needle is 30mm-100mm.
The beneficial effects of the utility model are：1) treated using column type Li-ion cell filling device of the present utility model
During intercell fluid injection, combined closely at the slot rolling step of battery to be injected with elastic seal ring, electroless liquid at slot rolling step
Residual；2) column type Li-ion cell filling device of the present utility model is given during battery liquid-filling to be injected, and anode ear is straight
Vertical, so protect anode ear not contaminated by electrolyte, substantially increase first-time qualification rate when anode ear welds with block
And the stability of weld strength.3) the whole injection process of column type Li-ion cell filling device of the present utility model, electrolyte
It is to permeate from lower to upper, the air in battery core is discharged in time, beneficial to sepage；4) column lithium ion battery note of the present utility model
After the completion of liquid device fluid injection, save and wipe anode ear and slot rolling step two procedures, save manpower, equipment cost, improve production
Efficiency；Shorten open-assembly time of the naked battery core in fluid injection room simultaneously, reduce its harmful effect to battery performance.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the positive structure schematic for the column type Li-ion cell filling device that the utility model embodiment provides；
Fig. 2 is the column type Li-ion cell filling device side partial schematic diagram that the utility model embodiment provides；
Wherein, each reference in figure：
1：Liquid storing barrel；
2：Cylinder；
3：Elastic seal ring；
4：Electrolyte；
5：Battery to be injected；
51：Anode ear；
52：Slot rolling step；
53：Interstitial hole；
6：Fluid injection frame；
61：Vacuum cavity；
62：Linear bearing；
7：Pallet；
8：Injection needle；
9：Liquid injecting pipeline；
10：Topping-up pump.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System, it is for only for ease of and describes the utility model and simplified description, rather than the device or element of instruction or hint meaning is necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In this reality
With in new description, " multiple " are meant that two or more, unless otherwise specifically defined.
Also referring to Fig. 1 and Fig. 2, the column type Li-ion cell filling device now provided the utility model embodiment
Illustrate.Column type Li-ion cell filling device of the present utility model includes elastic seal ring 3, for storing electrolyte 4
Liquid storing barrel 1 and the cylinder 2 that is vacuumized for the to be injected battery 5 upright to anode ear 51, the top of cylinder 2 is connected with fluid injection
Frame 6, and the side wall of cylinder 2 is provided with the pallet 7 with fixed battery 5 to be injected；The bottom of fluid injection frame 6 is provided with vacuum cavity
61, in vacuum cavity 61 fixation injection needle 8 is housed, liquid storing barrel 1 is connected by liquid injecting pipeline 9 with injection needle 8, liquid injecting pipeline 9
On be provided with topping-up pump 10；Fluid injection frame 6, which moves down, to be inserted injection needle 8 in the interstitial hole 53 of battery 5 to be injected, elastic seal ring 3
The slot rolling step 52 on battery 5 to be injected is put, after cylinder 2 vacuumizes battery 5 to be injected, topping-up pump 10 leads to electrolyte 4
Liquid injecting pipeline 9 is crossed to be pumped into injection needle 8 to inject in battery 5 to be injected.
The beneficial effects of the utility model are：1) treated using column type Li-ion cell filling device of the present utility model
During 5 fluid injection of intercell, combined closely at the slot rolling step 52 of battery 5 to be injected with elastic seal ring 3, such slot rolling step 52
Locate electroless liquid 4 to remain；2) column type Li-ion cell filling device of the present utility model gives the injection process of battery 5 to be injected
In, anode ear 51 is upright, so protects anode ear 51 not contaminated by electrolyte 4, substantially increases anode ear 51 and lid
The stability of first-time qualification rate and weld strength when cap welds.3) column type Li-ion cell filling device of the present utility model
Whole injection process, electrolyte 10 is to permeate from lower to upper, and the air in battery core is discharged in time, beneficial to sepage；4) this practicality
After the completion of new column type Li-ion cell filling device fluid injection, save and wipe anode ear 51 and the two procedures of slot rolling step 52,
Manpower, equipment cost are saved, improves production efficiency；Shorten open-assembly time of the naked battery core in fluid injection room simultaneously, reduce it to electricity
The harmful effect of pond performance.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, the both sides of fluid injection frame 6 are respectively arranged with linear bearing 62 in order to move up and down fluid injection frame 6.In this way, push fluid injection frame 6
When the injection needle 8 is inserted in the interstitial hole 53 of battery 5 to be injected, efficiency can be improved with laborsaving.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, in vacuum cavity 61 it is fixed equipped with multiple injection needles 8 injecting electrolyte 10 to multiple batteries 5 to be injected.I.e. each
The corresponding battery 5 to be injected of injection needle 8, electrolyte 10 is injected to it；Meanwhile each injection needle 8 individually note by connection one
Liquid pump 10；In this way, fluid injection efficiency can be improved accurately to each fluid injection of battery 5 to be injected.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, elastic seal ring 3 are plastic seal ring or rubber seal.Plastics and quality of rubber materials not only good seal but also flexible,
Meet requirement of the present utility model.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, topping-up pump 10 are electric precise topping-up pump.In this way, the reservoir quantity of each battery to be injected 5 can be precisely controlled.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, injection needle 8 are stainless steel injection needle.Stainless steel is not perishable, service life length.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, the external diameter of injection needle 8 are less than the internal diameter of the interstitial hole 53 of battery 5 to be injected.In this way, during injection needle 8 can be inserted smoothly
Between in hole 53.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, when injection needle 8 is inserted in the interstitial hole 53 of battery 5 to be injected, the bottom of injection needle 8 and the bottom distance of battery 5 to be injected
For 1mm-5mm.Such distance is kept, electrolyte 4 can be made smoothly to enter the bottom of battery 5 to be injected, while its air is arranged
Go out.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, the internal diameter of injection needle 8 is 1.5mm-3.5mm.Within the range, flowing of the electrolyte 4 in injection needle 8 can effectively be kept
Property.
Further, a kind of specific embodiment party as column type Li-ion cell filling device provided by the utility model
Formula, the length of injection needle 8 is 30mm-100mm.Within the range, when moving up and down injection needle 8, electrolysis can be all efficiently injected into
Liquid 4.
Above-mentioned column type Li-ion cell filling device provided by the utility model is using process steps：1) will be to be injected
Battery 5 (anode ear 51 is upright) is put into pallet 7 fixed；2) cylinder 2 is started, fluid injection frame 6 pushes：Injection needle 8 is aligned to be injected
The interstitial hole 53 of battery 5 enters bottom, and elastic seal ring 3 is connected and sealed with battery slot rolling step to be injected；3) vacuumize, very
Degree sky -0.03 arrives -0.09MPa；4) fluid injection is started, electrolyte 4 is entered battery to be injected by topping-up pump 10 by the bottom of injection needle 8
5 bottom fluid injection (according to actual conditions, 1-3 fluid injection can be divided)；5) battery for completing fluid injection is pressurizeed：0.2-1.0MPa, 0-
60s, 30-60s is stood, then vacuumize -0.03 and arrive -0.09MPa, 30-60s, so circulation 3-10 times, until electrolyte 4 is complete
Penetrate into battery.
The column lithium ion battery made after the completion of above-mentioned steps has the following advantages：1) anode ear 51 and block welding
First-time qualification rate is promoted to more than 99.7% by 98%；2) due to noresidue electrolyte at slot rolling step 52, electricity after sealing charging
Pond normal temperature shelf one month, faucal non-corroding phenomenon.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of column type Li-ion cell filling device, it is characterised in that including elastic seal ring, for storing electrolyte
Liquid storing barrel and the cylinder for the to be injected battery vacuum-pumping upright to anode ear, the top of the cylinder are connected with fluid injection frame,
And the side wall of the cylinder is provided with the pallet with the fixed battery to be injected；The bottom of the fluid injection frame is provided with vacuum chamber
Body, in the vacuum cavity fixation injection needle is housed, the liquid storing barrel is connected by liquid injecting pipeline with the injection needle, described
Topping-up pump is provided with liquid injecting pipeline；
The fluid injection frame, which moves down, to be inserted the injection needle in the interstitial hole of the battery to be injected, and the elastic seal ring is put
Slot rolling step on the battery to be injected, the cylinder is by after the battery vacuum-pumping to be injected, and the topping-up pump is by described in
Electrolyte is pumped into the injection needle by the liquid injecting pipeline to inject in the battery to be injected.
2. column type Li-ion cell filling device as claimed in claim 1, it is characterised in that the both sides of the fluid injection frame point
Linear bearing is not provided with order to move up and down the fluid injection frame.
3. column type Li-ion cell filling device as claimed in claim 1, it is characterised in that fixed in the vacuum cavity
Equipped with multiple injection needles giving multiple batteries to be injected to inject the electrolyte.
4. column type Li-ion cell filling device as claimed in claim 1, it is characterised in that the elastic seal ring is modeling
Expect sealing ring or rubber seal.
5. column type Li-ion cell filling device as claimed in claim 1, it is characterised in that the topping-up pump is accurate electricity
Dynamic topping-up pump.
6. column type Li-ion cell filling device as claimed in claim 1, it is characterised in that the injection needle is stainless steel
Injection needle.
7. the column type Li-ion cell filling device as described in claim any one of 1-6, it is characterised in that the injection needle
External diameter be less than the battery to be injected interstitial hole internal diameter.
8. the column type Li-ion cell filling device as described in claim any one of 1-6, it is characterised in that the injection needle
When inserting in the interstitial hole of the battery to be injected, the bottom of the injection needle and the bottom distance of the battery to be injected are
1mm-5mm。
9. the column type Li-ion cell filling device as described in claim any one of 1-6, it is characterised in that the injection needle
Internal diameter be 1.5mm-3.5mm.
10. the column type Li-ion cell filling device as described in claim any one of 1-6, it is characterised in that the fluid injection
The length of pin is 30mm-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720803506.5U CN206931649U (en) | 2017-07-03 | 2017-07-03 | Column type Li-ion cell filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720803506.5U CN206931649U (en) | 2017-07-03 | 2017-07-03 | Column type Li-ion cell filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206931649U true CN206931649U (en) | 2018-01-26 |
Family
ID=61353709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720803506.5U Active CN206931649U (en) | 2017-07-03 | 2017-07-03 | Column type Li-ion cell filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206931649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615848A (en) * | 2018-04-28 | 2018-10-02 | 贵州贵航新能源科技有限公司 | Put formula lithium battery electrolyte filling method in side |
| CN112688033A (en) * | 2020-12-25 | 2021-04-20 | 惠州亿纬锂能股份有限公司 | Cylindrical battery cell liquid injection device and liquid injection method |
-
2017
- 2017-07-03 CN CN201720803506.5U patent/CN206931649U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615848A (en) * | 2018-04-28 | 2018-10-02 | 贵州贵航新能源科技有限公司 | Put formula lithium battery electrolyte filling method in side |
| CN112688033A (en) * | 2020-12-25 | 2021-04-20 | 惠州亿纬锂能股份有限公司 | Cylindrical battery cell liquid injection device and liquid injection method |
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