CN202662705U - Battery filling device - Google Patents
Battery filling device Download PDFInfo
- Publication number
- CN202662705U CN202662705U CN2012202341007U CN201220234100U CN202662705U CN 202662705 U CN202662705 U CN 202662705U CN 2012202341007 U CN2012202341007 U CN 2012202341007U CN 201220234100 U CN201220234100 U CN 201220234100U CN 202662705 U CN202662705 U CN 202662705U
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- Prior art keywords
- filling
- battery
- fluid injection
- cup
- 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.)
- Expired - Lifetime
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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 belongs to the technical field of lithium ion batteries, and particularly relates to a battery filling device, which comprises a cavity body, a filling cup and a filling pump. The filling cup is accommodated in the cavity body. The output end of the filling cup is arranged above a battery. The filling pump is connected with the filling cup through a filling pipe. The cavity body is provided with a vacuumizing pipe. The input end of the vacuumizing pipe is connected with a vacuumizer. A through hole is formed on the lateral surface of the filling cup. An outlet of the filling pipe is connected with a filling head. An outlet of the filling head is positioned below the through hole. Compared with the prior art, the battery filling device has the advantages that the through hole is additionally formed in the filling cup, and the filling head is additionally arranged at the output end of the filling pipe; by the through hole, vacuum degrees inside and outside the filling cup can be ensured to be consistent, and electrolyte can completely enter the battery under the action of gravity, so that the filling accuracy of the battery is greatly improved; and by the filling head, the movement distance of the electrolyte in the filling cup can be shortened, so that the time of filling of the electrolyte into the battery is shortened, and working efficiency is improved.
Description
Technical field
The utility model belongs to technical field of lithium ion, particularly a kind of battery liquid-filling device.
Background technology
Lithium ion battery generally comprises packaging bag, is placed in the battery core in the packaging bag and is poured into the interior electrolyte of packaging bag.Its manufacturing process generally comprises stirring, is coated with, colds pressing, cuts, coiling or lamination, encapsulation, fluid injection, change into and the steps such as capacity.
Wherein, general employing is vacuum electrolyte filling device in the fluid injection step, and the purpose of vacuum liquid filling is that electrolyte utilizes self gravitation to flow in the battery under vacuum state.
Priming device commonly used as shown in Figure 1 at present, it comprises cavity 40, be placed in the cavity 40 and be positioned at the fluid injection cup 30 of battery 80 tops, be provided with liquid-filling valve 20 on the fluid injection cup 30, fluid injection cup 30 is connected by liquid injection pipe 90 with liquid-filling valve 20, liquid-filling valve 20 is connected with topping-up pump 10, be provided with fluid injection cup vacuum-pumping tube 60 on the fluid injection cup 30, be provided with cavity vacuum-pumping tube 70 on the cavity 40, the input that fluid injection cup vacuum-pumping tube 60 is connected with the cavity vacuum-pumping tube all is connected with evacuator 91, be provided with motion bar 50 in the fluid injection cup 30, and an end of motion bar 50 stretches out fluid injection cup 30, and the output of liquid injection pipe 90 flushed with the cup end of fluid injection cup 30.
During actual fluid injection, after battery 80 is sent in the cavity 40, fluid injection cup 30 can move down, evacuator 91 vacuumizes cavity 40 and fluid injection cup 30 respectively, because fluid injection cup 30 volume ratio cavitys 40 are little, the vacuum degree of fluid injection cup 30 reaches first than the vacuum degree of cavity 40, electrolyte can not flow into battery fast, also can cause electrolyte can not flow in the battery 80 fully, make the electrolyte content of perfusion in the battery 80 not enough, cause easily the circulation diving phenomenon (being the phenomenon of battery capacity straight glide after certain circulation) of battery 80; In serialization is produced, also can affect the battery outward appearance so that the liquid problem that expands occurs owing to electrolyte content is excessive next battery 80, affect the excellent rate of battery, even the danger such as generation leakage.In addition, because the output of liquid injection pipe 90 flushes with glass end of fluid injection cup 30, cause need to the flow through height of whole fluid injection cup 30 of electrolyte just can reach the output of fluid injection cup 30, cause fluid injection efficient lower.
In addition, easy crystallization when electrolyte remains in the fluid injection cup 30, the electrolyte of crystallization will stop up liquid injection port, cause reservoir quantity inaccurate; Electrolyte is residual in fluid injection cup 30, also causes easily dropping liquid, causes the pollution of battery 80.
In view of this, necessaryly provide a kind of and can improve the fluid injection precision, avoid dropping liquid to cause battery pollution, improve the battery liquid-filling device of fluid injection efficient, to improve the excellent rate of battery and battery performance.
The utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provide a kind of battery liquid-filling device, this priming device can improve the fluid injection precision, avoids dropping liquid to cause battery pollution and improve fluid injection efficient, thereby improve the excellent rate of battery and battery performance, the deficiency that pollutes to overcome low, the easy dropping liquid of battery liquid-filling device fluid injection precision of the prior art.
To achieve these goals, the utility model adopts following technical scheme: a kind of battery liquid-filling device, comprise cavity, fluid injection cup and topping-up pump, described fluid injection cup is arranged in the described cavity, and the outlet of described fluid injection cup is arranged at the top of battery, described topping-up pump is connected with described fluid injection cup by liquid injection pipe, described cavity is provided with vacuum-pumping tube, the input of described vacuum-pumping tube is connected with evacuator, the side of described fluid injection cup is provided with through hole, the outlet of described liquid injection pipe is connected with filling head, and the outlet of described filling head is positioned at the below of described through hole.
As a kind of improvement of the utility model battery liquid-filling device, be provided with liquid-filling valve between the import of described liquid injection pipe and the described fluid injection delivery side of pump.
As a kind of improvement of the utility model battery liquid-filling device, be provided with motion bar in the described fluid injection cup, and an end of described motion bar is stretched out by the top of described fluid injection cup.
As a kind of improvement of the utility model battery liquid-filling device, described through hole is provided with two.
As a kind of improvement of the utility model battery liquid-filling device, two described through holes circumferentially evenly distributing along described fluid injection cup.
As a kind of improvement of the utility model battery liquid-filling device, described through hole is provided with four.
As a kind of improvement of the utility model battery liquid-filling device, described through hole be shaped as circle.
As a kind of improvement of the utility model battery liquid-filling device, being shaped as of described through hole is square.
As a kind of improvement of the utility model battery liquid-filling device, described filling head be shaped as taper.
As a kind of improvement of the utility model battery liquid-filling device, the outlet of described fluid injection cup be shaped as taper.
With respect to prior art, the filling head that the utility model has increased the through hole on the fluid injection cup and has been arranged at the liquid injection pipe output, after battery enters cavity, cavity and fluid injection cup can vacuumize simultaneously, through hole on the fluid injection cup can guarantee that the inside and outside vacuum degree of fluid injection cup is consistent, so that electrolyte can enter in the battery under Action of Gravity Field fully, prevent the inaccurate problem of the residual fluid injection precision that causes of electrolyte, the sigma value of the reservoir quantity of battery is reduced to 0.02 by 0.06, has greatly improved the fluid injection precision of battery; Arranging of filling head can be shortened the distance that electrolyte moves in the fluid injection cup, thereby reduces the time that electrolyte injects battery, increases work efficiency.And because the utility model can avoid electrolyte residual in the fluid injection cup, thereby can prevent the battery pollution that the dropping liquid of electrolyte causes.
Description of drawings
Below in conjunction with specification drawings and specific embodiments, the utility model and useful technique effect thereof are elaborated.
Fig. 1 is the structural representation of priming device of the prior art.
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment and Figure of description, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
As shown in Figure 2, a kind of battery liquid-filling device that the utility model provides, comprise cavity 4, fluid injection cup 3 and topping-up pump 1, fluid injection cup 3 is arranged in the cavity 4, and the outlet of fluid injection cup 3 is arranged at the top of battery 8, topping-up pump 1 is connected with 3 glasss in fluid injection cup by liquid injection pipe 6, cavity 4 is provided with vacuum-pumping tube 41, the input of vacuum-pumping tube 41 is connected with evacuator 5, the side of fluid injection cup 3 is provided with through hole 31, and the outlet of liquid injection pipe 6 is connected with filling head 7, and the outlet of filling head 7 is positioned at the below of through hole 31, to prevent that electrolyte from drifting out from through hole 31, cause the pollution to cavity 4 and battery 8.
Be provided with liquid-filling valve 9 between the outlet of the import of liquid injection pipe 6 and topping-up pump 1, with the injection rate of better control electrolyte.
Be provided with motion bar 2 in the fluid injection cup 3, and an end of motion bar 2 stretches out by the top of fluid injection cup 3, when the outlet of fluid injection cup 3 has material to stop up outlet, can use motion bar 2 to dredge.
Through hole 31 is provided with two, and two through holes 31 make the vacuum degree in the fluid injection cup 3 be easier to reach consistent with cavity 4 interior vacuum degree ratios.
Preferably, two through holes 31 circumferentially evenly distributing along fluid injection cup 3.
Through hole 31 can also be provided with four, and four through holes 31 make the vacuum degree in the fluid injection cup 3 reach consistent with the vacuum degree in the cavity 4 is easier.
Through hole 31 be shaped as circle.
Being shaped as of through hole 31 is square.
Filling head 7 be shaped as taper, electrolyte is transferred in the fluid injection cup 3 with droplet morphology.
The outlet of fluid injection cup 3 be shaped as taper, electrolyte is transferred in the battery 8 with droplet morphology.If the outlet of fluid injection cup 3 is too large, can make electrolyte spill, cause the pollution of battery.
During actual fluid injection, after battery 8 was sent in the cavity 4, fluid injection cup 3 moved down, and evacuator 5 starts, cavity 4 is vacuumized, because the existence of through hole 31 on the fluid injection cup 3, the vacuum degree of fluid injection cup 3 reaches consistent with the vacuum degree of cavity 4, flow through under Action of Gravity Field liquid injection pipe 6 and filling head 7 of electrolyte in the topping-up pump 1, arrive fluid injection cup 3, then the outlet via fluid injection cup 3 enters into 8 li on battery fully, prevents that electrolyte is interior residual at fluid injection cup 3, improves the precision of fluid injection.Facts have proved, adopt priming device of the present utility model after, the sigma value of the reservoir quantity of battery is reduced to 0.02 by 0.06, this shows that the utility model can improve the fluid injection precision of battery 8 greatly.And find that by statistics when the priming device of employing prior art carried out fluid injection, the ratio of contaminated battery 8 was 0.1%, and after adopting battery liquid-filling device of the present utility model, the ratio of contaminated battery 8 then is reduced to 0.02%, and this shows that the utility model can reduce the pollution to battery core.In addition, arranging of filling head 7 can be shortened the distance that electrolyte moves in fluid injection cup 3, thereby reduces the time that electrolyte injects battery 8, increases work efficiency.
The according to the above description announcement of book and instruction, the utility model those skilled in the art can also change and revise above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the utility model just for convenience of description.
Claims (10)
1. battery liquid-filling device, comprise cavity, fluid injection cup and topping-up pump, described fluid injection cup is arranged in the described cavity, and the outlet of described fluid injection cup is arranged at the top of battery, described topping-up pump is connected with described fluid injection cup by liquid injection pipe, described cavity is provided with vacuum-pumping tube, the input of described vacuum-pumping tube is connected with evacuator, it is characterized in that: the side of described fluid injection cup is provided with through hole, the outlet of described liquid injection pipe is connected with filling head, and the outlet of described filling head is positioned at the below of described through hole.
2. battery liquid-filling device according to claim 1 is characterized in that: be provided with liquid-filling valve between the import of described liquid injection pipe and the described fluid injection delivery side of pump.
3. battery liquid-filling device according to claim 1 is characterized in that: be provided with motion bar in the described fluid injection cup, and an end of described motion bar is stretched out by the top of described fluid injection cup.
4. battery liquid-filling device according to claim 1, it is characterized in that: described through hole is provided with two.
5. battery liquid-filling device according to claim 4 is characterized in that: two described through holes circumferentially evenly distributing along described fluid injection cup.
6. battery liquid-filling device according to claim 1, it is characterized in that: described through hole is provided with four.
7. battery liquid-filling device according to claim 1 is characterized in that: described through hole be shaped as circle.
8. battery liquid-filling device according to claim 1, it is characterized in that: being shaped as of described through hole is square.
9. battery liquid-filling device according to claim 1 is characterized in that: described filling head be shaped as taper.
10. battery liquid-filling device according to claim 1 is characterized in that: the outlet of described fluid injection cup be shaped as taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202341007U CN202662705U (en) | 2012-05-23 | 2012-05-23 | Battery filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202341007U CN202662705U (en) | 2012-05-23 | 2012-05-23 | Battery filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662705U true CN202662705U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202341007U Expired - Lifetime CN202662705U (en) | 2012-05-23 | 2012-05-23 | Battery filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662705U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247775A (en) * | 2013-05-02 | 2013-08-14 | 深圳市力德科技有限公司 | Liquid filling method for flexible package lithium ion battery |
| CN106450145A (en) * | 2016-12-26 | 2017-02-22 | 宁德时代新能源科技股份有限公司 | Liquid injection device |
| CN106654142A (en) * | 2016-12-16 | 2017-05-10 | 宁德时代新能源科技股份有限公司 | Liquid injection device |
| CN106784594A (en) * | 2017-03-08 | 2017-05-31 | 东莞丰源锂能电池设备有限公司 | A kind of linear cylindrical battery vacuum liquid filling mechanism |
| CN106784591A (en) * | 2017-01-18 | 2017-05-31 | 夏三星 | A kind of battery electrolyte filling apparatus |
-
2012
- 2012-05-23 CN CN2012202341007U patent/CN202662705U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247775A (en) * | 2013-05-02 | 2013-08-14 | 深圳市力德科技有限公司 | Liquid filling method for flexible package lithium ion battery |
| CN103247775B (en) * | 2013-05-02 | 2016-01-20 | 深圳市力德科技有限公司 | A kind of electrolyte filling method of flexible packing lithium ion battery |
| CN106654142A (en) * | 2016-12-16 | 2017-05-10 | 宁德时代新能源科技股份有限公司 | Liquid injection device |
| CN106654142B (en) * | 2016-12-16 | 2022-09-23 | 宁德时代新能源科技股份有限公司 | Liquid injection device |
| CN106450145A (en) * | 2016-12-26 | 2017-02-22 | 宁德时代新能源科技股份有限公司 | Liquid injection device |
| CN106784591A (en) * | 2017-01-18 | 2017-05-31 | 夏三星 | A kind of battery electrolyte filling apparatus |
| CN106784591B (en) * | 2017-01-18 | 2023-09-01 | 夏三星 | Battery electrolyte filling device |
| CN106784594A (en) * | 2017-03-08 | 2017-05-31 | 东莞丰源锂能电池设备有限公司 | A kind of linear cylindrical battery vacuum liquid filling mechanism |
| CN106784594B (en) * | 2017-03-08 | 2022-11-08 | 东莞丰源锂能电池设备有限公司 | Linear cylindrical battery vacuum liquid injection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |