CN109037581A - Fluid reservoir and lithium battery liquid injection system - Google Patents
Fluid reservoir and lithium battery liquid injection system Download PDFInfo
- Publication number
- CN109037581A CN109037581A CN201810846584.2A CN201810846584A CN109037581A CN 109037581 A CN109037581 A CN 109037581A CN 201810846584 A CN201810846584 A CN 201810846584A CN 109037581 A CN109037581 A CN 109037581A
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- CN
- China
- Prior art keywords
- tank
- level
- lithium battery
- fluid
- liquid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
-
- 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
Abstract
The present invention discloses a kind of fluid reservoir, including level-one tank, second level tank and agitating device, the level-one tank is set on the second level tank and is connected to the second level tank by the first valve, the agitating device is set on the level-one tank and the stirring blade of the agitating device is protruded into the level-one tank and stirred to the liquid storage of its inside, the lower end of the level-one tank is equipped with inlet and upper end is equipped with exhaust outlet, and the lower end of the second level tank is equipped with liquid outlet.Fluid reservoir of the invention can store electrolyte and separate bubble to electrolyte before lithium battery fluid injection, effectively improve fluid injection efficiency, improve the performance of lithium battery.In addition, invention additionally discloses a kind of bubble can be separated to electrolyte, while having both the lithium battery liquid injection system of storage and fluid injection.
Description
Technical field
The present invention relates to a kind of liquid injection system more particularly to it is a kind of for store and into lithium battery the fluid reservoir of fluid injection and
Lithium battery liquid injection system.
Background technique
It is well known that the bubbles volume of lithium battery interior has large effect to the quality, performance and service life of lithium battery,
In the links of production lithium battery, require to avoid mixing for gas, therefore lithium battery needs during fluid injection
It carries out in vacuum drying environment, also, also lithium battery casing or airbag are vacuumized before fluid injection to exclude gas sky.
However, still have bubble by the lithium battery that above-mentioned measure is produced, although quantity is smaller, also can or
The performance of lithium battery is more or less affected, facts proved that, above-mentioned measure is inadequate to the exclusion of bubble.Reason is that
Contain a small amount of bubble or gas molecule in the electrolyte of injection, these bubbles are the mistakes in electrolyte production, transport and conveying
It is mixed in journey with electrolyte, if be directly injected into lithium battery, part bubble will be generated in lithium battery, in turn
Influence the performance of lithium battery.Therefore, it is necessary at fluid injection front row except the bubble or gas molecule in electrolyte do not have also still at present
There is such equipment available.
Summary of the invention
Electrolyte can be separated to electrolyte storage and before lithium battery fluid injection the purpose of the present invention is to provide a kind of
The fluid reservoir of the performance of bubble, raising lithium battery.
Bubble can be separated to electrolyte another object of the present invention is to provide a kind of, while having both the lithium of storage and fluid injection
Battery liquid-filling system.
To achieve the goals above, fluid reservoir provided by the invention includes level-one tank, second level tank and agitating device, and described one
Grade tank is set on the second level tank and is connected to the second level tank by the first valve, and the agitating device is set to described one
On grade tank and the stirring blade of the agitating device is protruded into the level-one tank and is stirred to the liquid storage of its inside, the level-one tank
Lower end is equipped with inlet and upper end is equipped with exhaust outlet, and the lower end of the second level tank is equipped with liquid outlet.
Compared with prior art, the level-one tank and second level tank interconnected by setting due to the present invention, then described one
Agitating device is set on grade tank, the electrolyte in the level-one tank is stirred using the agitating device, to make to mix
In in electrolyte bubble or gas molecule separate and release with electrolyte, and be discharged by the exhaust outlet, also, separate bubble
Electrolyte afterwards enters back into the second level tank, to utilize described two while not influencing the level-one tank stirring electrolyte
Therefore grade tank conveying electrolyte both can store and be separated to electrolyte bubble, improve the performance of lithium battery, can also be same
Shi Jinhang fluid injection effectively improves fluid injection efficiency.
Preferably, the level-one tank and/or the second level tank are equipped with level sensor.The level sensor is arranged can
To monitor the liquid level of the electrolyte in tank, so as to automatically and timely supplement electrolyte, guarantee can be infused constantly
Liquid.
Preferably, the lower end of the level-one tank and/or the second level tank is equipped with leakage fluid dram.The leakage fluid dram can both recycle
Electrolyte in tank reduces waste, and can be to cleaning in tank.
Preferably, the exhaust ports are equipped with filter.The filter can prevent electrolyte to be discharged to from exhaust outlet
The external world pollutes the environment.
Preferably, being connected between the level-one tank and the second level tank by perfusion tube, and the perfusion tube extends to institute
State the interior bottom of second level tank.By the way that the perfusion tube to be extended to the interior bottom of the second level tank, can prevent from reducing electrolyte
To the impact of tank body when whereabouts, to reduce noise.
Preferably, the second level tank is equipped with silencer；The silencer can further decrease in the second level tank
Noise.
A kind of lithium battery liquid injection system, it is described including accumulating tank, air extractor, fluid injection cup and fluid reservoir described above
Inlet is connect with the accumulating tank, and the input terminal of the air extractor is connect with the exhaust outlet, the input of the fluid injection cup
End is connect with the liquid outlet.
Preferably, being equipped with the second valve between the inlet and the accumulating tank.
It is connect preferably, the accumulating tank provides device with hyperbar.Using high pressure gas to the electricity in the accumulating tank
Solution liquid is pushed, so as to so that the electrolyte in the accumulating tank automatically flows into the level-one tank, guarantee infusion and
When and smoothly.
Preferably, being equipped with third valve between the fluid injection cup and the liquid outlet.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fluid reservoir of the present invention.
Fig. 2 is the structural schematic diagram of lithium battery liquid injection system of the present invention.
Specific embodiment
For the technology contents that the present invention will be described in detail, construction feature, the effect realized, below in conjunction with embodiment and match
Attached drawing is closed to be explained in detail.
As shown in Figure 1, fluid reservoir 1 of the invention includes level-one tank 11, second level tank 12 and agitating device 13, the level-one tank
11 are set on the second level tank 12 by a bracket, are connected between the level-one tank 11 and the second level tank 12 by perfusion tube 14
It is logical, and perfusion tube 14 is equipped with the first valve, first valve is pneumatic diaphragm valve 15；The agitating device 13 is set to institute
11 upper end of level-one tank is stated, the agitating device 13 includes motor 131, retarder 132, agitating shaft 133 and paddle 134, described
The output end of motor 131 connects the retarder 132, and the output end of the retarder 132 connects the agitating shaft 133, described
The lower end of agitating shaft 133 connects the paddle 134 and protrudes into the level-one tank 11 and stirs to the electrolyte of its inside.
Again as shown in Figure 1, the lower end of the level-one tank 11 is equipped with inlet 111 and upper end is equipped with exhaust outlet 112, the row
Filter 113 is equipped at port 112.The filter 113 can prevent electrolyte to be discharged to the external world from exhaust outlet 112, to ring
Border pollutes.Set on the level-one tank 11 there are four level sensor, be followed successively by from top to bottom limes superiors liquid level sensor 114,
Stop liquid inductor 115, fluid infusion inductor 116, limit inferior level sensor 117.When liquid level is on fluid infusion inductor 116,
System is automatically to 11 fluid infusion of level-one tank；When liquid level, which is in, to stop on liquid inductor 115, system is automatically stopped fluid infusion；Limes superiors liquid
Position sensor 114 with the effect for stopping liquid inductor 115 be it is identical, mainly the use when stopping the failure of liquid inductor 115, prevents
Liquid level is excessively high；The effect of limit inferior level sensor 117 and fluid infusion inductor 116 be it is identical, mainly in fluid infusion inductor 116
It is used when failure, prevents liquid level too low；These level sensors are arranged can be with the liquid level of the electrolyte in effective monitoring tank
Highly, so as to automatically and timely supplement electrolyte, guarantee can constantly fluid injection.The lower end of the level-one tank 11 is equipped with
Leakage fluid dram 118.The leakage fluid dram 118 both can reduce waste, and can be to cleaning in tank with the electrolyte in recycling can.
Again as shown in Figure 1, the lower end of the second level tank 12 is equipped with liquid outlet 121.The perfusion tube 14 extends to described two
The interior bottom of grade tank 12.By the way that the perfusion tube 14 to be extended to the interior bottom of the second level tank 12, it can prevent from reducing being electrolysed
Impact when liquid falls to tank body, to reduce noise.Set on the second level tank 12 there are three level sensor, from top to bottom according to
It is secondary for limes superiors liquid level sensor 122, stop liquid inductor 123, fluid infusion inductor 124.When liquid level is on fluid infusion inductor 124
When, system automatically controls the pneumatic diaphragm valve 15 and opens from level-one tank 11 to 12 fluid infusion of second level tank；Stop liquid when liquid level is in
When on inductor 123, system Pneumatic automatic-control diaphragm valve 15 is closed to stop fluid infusion；The effect of limes superiors liquid level sensor 122
Effect with the limit liquid level inductor on level-one tank 11 is identical.The lower end of the second level tank 12 is equipped with leakage fluid dram 125.Institute
It states leakage fluid dram 125 and is divided to and exported for two, one of outlet can reduce waste with the electrolyte in recycling can, another outlet
Waste liquid can be discharged and can be discharged in cleaning to the cleaning agent cleaned in tank.The second level tank 12 is equipped with silencer
126；The silencer 126 can further decrease the noise in the second level tank 12.
As shown in Fig. 2, lithium battery liquid injection system 100 of the invention includes the fluid reservoir 1, accumulating tank 2, air extractor 3
And fluid injection cup 4, the inlet 111 of the level-one tank 11 are connect with the accumulating tank 2, the inlet 111 of the level-one tank 11 with
The second valve is equipped between the accumulating tank 2, specifically, the quantity of second valve can be multiple, but with manual ball
Valve or pneumatic diaphragm valve, it is also possible to which the two is arranged simultaneously, and the present embodiment is set using manual ball valve 5 with pneumatic diaphragm valve 6 simultaneously
The mode set, manual ball valve 5 are normally open, and pneumatic diaphragm valve 6 is automatically controlled by system, when pneumatic diaphragm valve 6 breaks down
When, it just needs that manual ball valve 5 is turned off manually.The input terminal of the air extractor 3 passes through the filter 113 and the exhaust outlet
Another waste liquid output end of 112 connections, the filter 113 is connect by manual ball valve 7 with waste liquid barrel；The fluid injection cup 4
It is connected between input terminal and the liquid outlet 121 of the second level tank 12 by pipeline, and is equipped with third valve, third on pipeline
Valve can be pneumatic diaphragm valve or manual ball valve, pneumatic diaphragm valve can also be arranged simultaneously with manual ball valve, the present invention adopts
With the latter, manual ball valve 8 is normally open, and pneumatic diaphragm valve 9 is opened or closed by system automatic control.The second level tank 12 can
To connect multiple fluid injection cups 4 simultaneously, to make multiple 200 fluid injections simultaneously of lithium battery of 4 pairs of multiple fluid injection cups.The accumulating tank 2 with
Hyperbar provides device 10 and connects.The electrolyte in the accumulating tank 2 is pushed using high pressure gas, so as to so that institute
It states the electrolyte in accumulating tank 2 automatically to flow into the level-one tank 11, guarantees that infusion is in time and smooth.
In summary and in conjunction with attached drawing 2, the injection process of lithium battery liquid injection system 100 of the present invention is carried out below detailed
It retouches, as follows:
Before fluid injection, if the corresponding fluid infusion inductor sense 116 on the level-one tank 11 should arrive liquid level it is too low when, system control
It makes corresponding pneumatic diaphragm valve 6 to open, at this moment, the electrolyte in accumulating tank 2 passes through pipeline and level-one tank under the influence of air pressure
11 inlet is injected into level-one tank 11；When the liquid level in level-one tank 11, which rises to, to stop on liquid inductor 115, system control
Corresponding pneumatic diaphragm valve 6 is closed, in addition, the motor 131 starts, drives the agitating shaft 133 by the retarder 132
Rotation, and then the paddle 134 is driven to stir the electrolyte inside level-one tank 11, make gas or gas point in electrolyte
In the space for the inner upper that son separation is released to level-one tank 11, then it is conducive to air extractor 3 and is extracted out by 112 gas of exhaust outlet.
When the liquid level in second level tank 12 drops on corresponding fluid infusion inductor 124, system controls corresponding pneumatic diaphragm valve 15 and beats
It opens, at this moment, the electrolyte of the completion exhaust in level-one tank 11 is injected into second level tank 12 etc. to be injected by perfusion tube 14.
When fluid injection, the electrolyte in the fluid injection cup 4 is injected into lithium battery 200 under the action of beating liquid cylinder 41, so
Afterwards, system control pneumatic diaphragm valve 9 is opened, and at this moment, fluid injection cup 4 is connected to second level tank 12, after playing the reset of liquid cylinder 41, second level
Electrolyte in tank 12 is just automatically injected in fluid injection cup 4, and pneumatic diaphragm valve 9 is automatically closed again later, the fluid injection cup 4 again into
Row fluid injection next time.
Compared with prior art, the level-one tank 11 and second level tank 12 interconnected by setting due to the present invention, then in institute
Setting agitating device 13 on level-one tank 11 is stated, the electrolyte in the level-one tank 11 is stirred using the agitating device 13
It mixes, is released so that the bubble being mixed in electrolyte or gas molecule be made to separate with electrolyte, and pass through 112 row of exhaust outlet
Out, also, the electrolyte after separation bubble enters back into the second level tank 12, to stir electricity not influencing the level-one tank 11
Electrolyte is transported in fluid injection cup 4 using the second level tank 12 while solving liquid and carries out fluid injection, therefore, fluid reservoir 1 of the present invention
Both bubble can be stored and separated to electrolyte, improved the performance of lithium battery, can also be carried out fluid injection simultaneously, utilize the storage
Flow container 1 can effectively improve the fluid injection efficiency of liquid injection system 100.
The above disclosure is only a preferred example of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore according to equivalent variations made by scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (10)
1. a kind of fluid reservoir, it is characterised in that: including level-one tank, second level tank and agitating device, the level-one tank is set to described
It is connected on second level tank and with the second level tank by the first valve, the agitating device is set on the level-one tank and described stirs
The stirring blade for mixing device, which protrudes into the level-one tank, stirs the liquid storage of its inside, and the lower end of the level-one tank is equipped with inlet
And upper end is equipped with exhaust outlet, the lower end of the second level tank is equipped with liquid outlet.
2. fluid reservoir as described in claim 1, it is characterised in that: the level-one tank and/or the second level tank are equipped with liquid level
Inductor.
3. fluid reservoir as described in claim 1, it is characterised in that: the lower end of the level-one tank and/or the second level tank is equipped with
Leakage fluid dram.
4. fluid reservoir as described in claim 1, it is characterised in that: the exhaust ports are equipped with filter.
5. fluid reservoir as described in claim 1, it is characterised in that: pass through perfusion tube between the level-one tank and the second level tank
Connection, and the perfusion tube extends to the interior bottom of the second level tank.
6. fluid reservoir as described in claim 1, it is characterised in that: the second level tank is equipped with silencer.
7. a kind of lithium battery liquid injection system, it is characterised in that: including accumulating tank, air extractor, fluid injection cup and claim 1 to 6
Described in any item fluid reservoirs, the inlet are connect with the accumulating tank, the input terminal of the air extractor and the exhaust
Mouth connection, the input terminal of the fluid injection cup are connect with the liquid outlet.
8. lithium battery liquid injection system as claimed in claim 7, it is characterised in that: set between the inlet and the accumulating tank
There is the second valve.
9. lithium battery liquid injection system as claimed in claim 7, it is characterised in that: the accumulating tank and hyperbar provide device and connect
It connects.
10. lithium battery liquid injection system as claimed in claim 7, it is characterised in that: between the fluid injection cup and the liquid outlet
Equipped with third valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846584.2A CN109037581A (en) | 2018-07-27 | 2018-07-27 | Fluid reservoir and lithium battery liquid injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846584.2A CN109037581A (en) | 2018-07-27 | 2018-07-27 | Fluid reservoir and lithium battery liquid injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109037581A true CN109037581A (en) | 2018-12-18 |
Family
ID=64646246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810846584.2A Pending CN109037581A (en) | 2018-07-27 | 2018-07-27 | Fluid reservoir and lithium battery liquid injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109037581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247099A (en) * | 2019-06-28 | 2019-09-17 | 东莞市超业精密设备有限公司 | A kind of gas-liquid separation equipment and gas-liquid separating method producing lithium battery |
| CN114256565A (en) * | 2020-09-11 | 2022-03-29 | 深圳市科晶智达科技有限公司 | Battery processing method applying vacuum liquid injection sealing machine |
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| JP2004247120A (en) * | 2003-02-13 | 2004-09-02 | Matsushita Electric Ind Co Ltd | Electrolyte liquid injection method and electrolyte liquid injection device |
| CN202474115U (en) * | 2012-02-23 | 2012-10-03 | 超源精密电子设备(东莞)有限公司 | Electrolytic solution air bubble treatment system |
| CN105280875A (en) * | 2015-09-17 | 2016-01-27 | 东莞市德瑞精密设备有限公司 | Novel liquid injection device |
| CN207530033U (en) * | 2017-10-18 | 2018-06-22 | 东莞市天逸自动化机械设备有限公司 | The bubble removing liquid storage mechanism of lithium battery automatic fluid injection sealing machine |
| CN208738347U (en) * | 2018-07-27 | 2019-04-12 | 东莞市德瑞精密设备有限公司 | Fluid reservoir and lithium battery liquid injection system |
-
2018
- 2018-07-27 CN CN201810846584.2A patent/CN109037581A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004247120A (en) * | 2003-02-13 | 2004-09-02 | Matsushita Electric Ind Co Ltd | Electrolyte liquid injection method and electrolyte liquid injection device |
| CN202474115U (en) * | 2012-02-23 | 2012-10-03 | 超源精密电子设备(东莞)有限公司 | Electrolytic solution air bubble treatment system |
| CN105280875A (en) * | 2015-09-17 | 2016-01-27 | 东莞市德瑞精密设备有限公司 | Novel liquid injection device |
| CN207530033U (en) * | 2017-10-18 | 2018-06-22 | 东莞市天逸自动化机械设备有限公司 | The bubble removing liquid storage mechanism of lithium battery automatic fluid injection sealing machine |
| CN208738347U (en) * | 2018-07-27 | 2019-04-12 | 东莞市德瑞精密设备有限公司 | Fluid reservoir and lithium battery liquid injection system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247099A (en) * | 2019-06-28 | 2019-09-17 | 东莞市超业精密设备有限公司 | A kind of gas-liquid separation equipment and gas-liquid separating method producing lithium battery |
| CN110247099B (en) * | 2019-06-28 | 2024-03-26 | 东莞市超业精密设备有限公司 | Gas-liquid separation equipment and gas-liquid separation method for producing lithium battery |
| CN114256565A (en) * | 2020-09-11 | 2022-03-29 | 深圳市科晶智达科技有限公司 | Battery processing method applying vacuum liquid injection sealing machine |
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