CN104681774B - A kind of column type Li-ion cell filling device - Google Patents
A kind of column type Li-ion cell filling device Download PDFInfo
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- CN104681774B CN104681774B CN201510048610.3A CN201510048610A CN104681774B CN 104681774 B CN104681774 B CN 104681774B CN 201510048610 A CN201510048610 A CN 201510048610A CN 104681774 B CN104681774 B CN 104681774B
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- fluid injection
- battery
- body case
- injection groove
- rectangular body
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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)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of column type Li-ion cell filling device, the priming device is a rectangular structure, the priming device includes upper and lower two parts, the top half is a rectangular body case without bottom surface, the latter half is the fluid injection groove of a rectangular-shape matched with the top half, the rectangular body case can be just enclosed within the fluid injection groove, the top of the rectangular body case is respectively arranged at two ends with bleeding point and inflation inlet, and the fluid injection trench bottom is provided with battery fixing structure.The present invention is by way of pressurizeing and vacuumizing, electrolyte in fluid injection groove can be flowed into inside battery from the liquid injection port of battery bottom automatically in the presence of relative pressure, when cuboid casing is on fluid injection groove, magnet attracts each other with metallic gasket, has reached good sealing effectiveness.Lithium-ion battery liquid injection device simple structure of the invention, easy to use, low cost, it is easy to produce.
Description
Technical field
The present invention relates to a kind of priming device, and in particular to a kind of column type Li-ion cell filling device.
Background technology
Lithium ion battery is a kind of secondary cell（Rechargeable battery）, it relies primarily on lithium ion and moves between a positive electrode and a negative electrode
Move and carry out work.In charge and discharge process, Li+ comes and goes embedded and deintercalation between two electrodes：During charging, Li+ from positive pole deintercalation,
Negative pole is embedded in by electrolyte, negative pole is in rich lithium state；It is then opposite during electric discharge.Battery typically uses the material containing elemental lithium
It is the representative of modern high performance battery as electrode.Lithium ion battery energy density is big, and average output voltage is high.Self discharge is small,
Good battery, monthly below 2%（Can recover）.There is no memory effect.A width of -20 DEG C~60 DEG C of operating temperature range.Cyclicity
Can it is superior, can fast charging and discharging, charge efficiency be up to 100%, and output power.Long service life.Without venomous injurant
Matter, is referred to as green battery.
Electrolyte plays a part of to conduct electronics between lithium ion battery positive and negative electrode, is that lithium ion battery obtains electricity high
The guarantee of the advantages of pressure, high specific energy.General organic solvent, electrolyte lithium salt, necessary additive by high-purity of electrolyte etc.
Raw material, is formulated under certain condition, by a certain percentage.
Lithium ion battery generally has two kinds of external forms：It is cylindrical and square.Column lithium ion battery, with voltage platform
Height, has extended cycle life, general to be applied to the energy field high such as mobile device, automobile, energy-accumulating power station the advantages of having a safety feature.But
Compared to general energy-storage battery, lithium ion battery, particularly cylindrical lithium ion battery has that fluid injection is more difficult.
Injection electrolyte (hereinafter referred to as fluid injection) is the critical process for manufacturing column lithium ion battery.The direct shadow of reservoir quantity
Ring the security performance and capacity of battery.Fluid injection is too many, and battery easy to leak may open safety valve, cause battery to scrap；Fluid injection
Very little, capacity can be reduced, and easily causes battery explosion.Ensure that the precision of reservoir quantity is critically important, the capacity of battery is higher, and fluid injection is got over
It is difficult.It is generally the extension fluid injection time that the country solves the difficult method of fluid injection, in order to not reduce production efficiency, can only extend production
Line, increases multistation equipment.The cost of equipment is which increased, plant maintenance has been aggravated, the stability of liquid injection system can be also reduced,
Improve equipment failure rate, liquid injection process has turned into the bottleneck of battery manufacture, it is necessary to develop new liquid injection process.New fluid injection work
Skill requirement is succinct efficiently, also requires that equipment cost is low, it is convenient to safeguard.
At present, known lithium ion battery liquid injection mode has inverse inhalation type fluid injection and with the direct fluid injection of HighPower pump.Inverse inhalation type is noted
Liquid is that first lithium ion battery stands upside down in battery fluid, pumps air therein, battery fluid under atmospheric pressure, into lithium
In ion battery system.But when this mode carries out fluid injection, injection rate is difficult to control to, the amount for injecting battery fluid is relatively more, charges
When can overflow, waste battery fluid, and lithium ion battery is put into battery fluid, the surface of lithium ion battery is easily corroded,
Influence the attractive in appearance of lithium ion battery appearance.Using the direct fluid injection of HighPower pump, though the number of injection rate can be controlled, without lithium from
Sub- battery stands upside down in battery fluid, but HighPower pump expensive, inefficiency, it is unfavorable for large-scale production, cause life
Produce high cost.
Absorption of the ferric phosphate lithium ion battery to electrolyte is slower, so needing the side by vacuum repeatedly during general fluid injection
Formula, make electrolyte flow into battery in, and need to reservoir quantity number quantified, so some filling machines on the market are past
Larger toward volume, complex structure is relatively costly, and fluid injection accuracy of measurement is poor.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art, there is provided a kind of simple structure, easy to operate, low cost,
And the column type Li-ion cell filling device being readily produced.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of column type Li-ion cell filling dress
Put, the priming device is a rectangular structure, the priming device includes upper and lower two parts；
The top half is a rectangular body case without bottom surface；
The latter half is the fluid injection groove of a rectangular-shape matched with the top half, the rectangular body case energy
Just it is enclosed within the fluid injection groove；
The top of the rectangular body case is respectively arranged at two ends with bleeding point and inflation inlet；
The fluid injection trench bottom is provided with battery fixing structure, and the battery fixing structure includes several along cuboid bottom surface
Some circular grooves of long axis direction straight line arrangement.
Further, the bleeding point and inflation inlet are hollow cylinder shape.
Further, depth of the depth of the circular fixed groove less than the fluid injection groove.
Further, the cuboid outer casing bottom edge is fixed with magnet, the bottom outer edge of the fluid injection groove and institute
State magnet correspondence position and be fixed with metallic gasket.
Beneficial effects of the present invention are as follows：
1. the electrolyte in the fluid injection groove of column type Li-ion cell filling device of the invention can vacuumized and pressurizeed
Relative pressure in the presence of, be flowed into inside battery from the liquid injection port of battery bottom automatically, present apparatus simple structure, sealing effect
Really good, easy to use, low cost, it is easy to produce is easy to industrially promote the use of on a large scale.
2. the top of rectangular body case of the invention is respectively arranged at two ends with bleeding point and inflation inlet, true by pressurizeing and taking out
Empty mode, the electrolyte in fluid injection groove can be flowed into electricity from the liquid injection port of battery bottom automatically in the presence of relative pressure
Inside pond.
3. the depth of battery fixed groove of the invention is less than the depth of the fluid injection groove, when battery is fixed in groove
When, the electrolyte for flowing through fluid injection groove can flow in battery bottom.
4. the cuboid outer casing bottom edge of fluid injection groove of the invention is fixed with magnet, the bottom outer edge and magnetic of fluid injection groove
Iron correspondence position is fixed with metallic gasket, and when cuboid casing is on fluid injection groove, magnet attracts each other with metallic gasket, reaches
Good sealing effectiveness is arrived.
5. electrolyte is first poured into fluid injection groove when apparatus of the present invention are used, then will treat that the battery of fluid injection has a liquid injection port
One end is tipped upside down in circular fixed groove, and simple structure is easy to use, low cost, it is easy to produce.
Brief description of the drawings
Fig. 1 is the generalized section of lithium-ion battery liquid injection device of the invention.
Fig. 2 is the overall appearance figure of lithium-ion battery liquid injection device of the invention.
Fig. 3 is the overall appearance figure of the fluid injection groove of lithium-ion battery liquid injection device of the invention.
Label in accompanying drawing：1st, rectangular body case；2nd, fluid injection groove；3rd, circular fixed groove；4th, bleeding point；5th, inflation inlet；6、
Magnet；7th, metallic gasket.
Specific embodiment
The technical scheme in the embodiment of patent of the present invention will be clearly and completely described below, it is clear that described
Embodiment be only a part of embodiment of patent of the present invention, rather than whole embodiments.Based on the implementation in patent of the present invention
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of patent protection of the present invention.
As shown in figures 1 and 3, the invention discloses a kind of column type Li-ion cell filling device, its innovative point is,
The priming device is a rectangular structure, and concrete structure is：The priming device includes upper and lower two parts；Top half does not have for one
There is the rectangular body case 1 of bottom surface；The latter half is the fluid injection groove 2 of a rectangular-shape matched with top half, rectangular body case 1
Can just be enclosed within fluid injection groove 2；The top of rectangular body case 1 is respectively arranged at two ends with bleeding point 4 and inflation inlet 5；The bottom of fluid injection groove 2
Portion is provided with battery fixing structure, and battery fixing structure includes several some circles arranged along cuboid bottom surface long axis direction straight line
Connected in star 3, to self-contained battery.
As to further optimization of the invention, as shown in Fig. 2 bleeding point 4 and inflation inlet 5 are hollow cylinder shape.
The depth of circular fixed groove 3, when battery is fixed in circular fixed groove 3, flows through fluid injection groove less than the depth of fluid injection groove 2
2 electrolyte can flow in battery bottom.The bottom margin of rectangular body case 1 is fixed with magnet 6, the bottom outside of fluid injection groove 2
Edge is fixed with metallic gasket 7 with the correspondence position of magnet 6, is used to seal, when rectangular body case 1 is enclosed within fluid injection groove 2, magnet 6
Attracted each other with metallic gasket 7, reached good sealing effectiveness.
A kind of priming device of lithium ion battery provided by the present invention, its operation principle is：The priming device it is rectangular
Body case 1 can be just enclosed within fluid injection groove 2 when designing, and the bleeding point 4 to the priming device is vacuumized, and inflation inlet 5 is pressurizeed, note
Electrolyte in liquid bath 2 can be flowed into inside battery from the liquid injection port of battery bottom automatically in the presence of relative pressure；Work as length
Cube shell 1 is enclosed within when on fluid injection groove 2, and magnet 6 attracts each other with metallic gasket 7, has reached good sealing effectiveness.The present invention
The rectangular body case 1 of device can need to change according to actual size, and its design parameter need to be engaged with the concrete model of battery.This
Invention device simple structure, easy to use, low cost, it is easy to produce.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using the present invention
Equivalent structure or equivalent process conversion that description is made, or other related technical fields are directly used in, similarly
It is included within the scope of the present invention.
Claims (3)
1. a kind of column type Li-ion cell filling device, it is characterised in that：The priming device is a rectangular structure, described
Priming device includes upper and lower two parts；Top half is a rectangular body case without bottom surface（1）；The latter half is one and institute
State the fluid injection groove of the rectangular-shape of top half matching（2）, the rectangular body case（1）The fluid injection groove can be just enclosed within（2）
On；
The rectangular body case（1）Top be respectively arranged at two ends with bleeding point（4）And inflation inlet（5）；
The fluid injection groove（2）Bottom is provided with battery fixing structure, and the battery fixing structure includes several along cuboid bottom surface
The some circular fixed groove of long axis direction straight line arrangement（3）;The rectangular body case（1）Bottom margin is fixed with magnet（6）,
The fluid injection groove（2）Bottom outer edge and the magnet（6）Correspondence position is fixed with metallic gasket（7）.
2. a kind of column type Li-ion cell filling device according to claim 1, it is characterised in that：The bleeding point
（4）And inflation inlet（5）It is hollow cylinder shape.
3. a kind of column type Li-ion cell filling device according to claim 1, it is characterised in that：It is described circular fixed
Groove（3）Depth be less than the fluid injection groove（2）Depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048610.3A CN104681774B (en) | 2015-01-30 | 2015-01-30 | A kind of column type Li-ion cell filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048610.3A CN104681774B (en) | 2015-01-30 | 2015-01-30 | A kind of column type Li-ion cell filling device |
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| Publication Number | Publication Date |
|---|---|
| CN104681774A CN104681774A (en) | 2015-06-03 |
| CN104681774B true CN104681774B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510048610.3A Active CN104681774B (en) | 2015-01-30 | 2015-01-30 | A kind of column type Li-ion cell filling device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870397B (en) * | 2016-05-31 | 2018-06-01 | 深圳市誉辰自动化设备有限公司 | Pressurize vaccum-pumping equipment |
| CN110416445A (en) * | 2019-07-23 | 2019-11-05 | 湖北锂诺新能源科技有限公司 | Diplopore lithium ion cover board and its rocking chair type priming device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW494085B (en) * | 1999-10-29 | 2002-07-11 | Nec Mobile Energy Kk | Device and method for pouring liquid into case |
| CN1705147A (en) * | 2004-06-01 | 2005-12-07 | 肇庆市风华锂电池有限公司 | Process and device for cell pole piece pressurization and injection |
| CN204651387U (en) * | 2015-01-30 | 2015-09-16 | 中天储能科技有限公司 | A kind of column type Li-ion cell filling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5034204B2 (en) * | 2005-09-29 | 2012-09-26 | パナソニック株式会社 | Method for manufacturing power storage element |
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- 2015-01-30 CN CN201510048610.3A patent/CN104681774B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW494085B (en) * | 1999-10-29 | 2002-07-11 | Nec Mobile Energy Kk | Device and method for pouring liquid into case |
| CN1705147A (en) * | 2004-06-01 | 2005-12-07 | 肇庆市风华锂电池有限公司 | Process and device for cell pole piece pressurization and injection |
| CN204651387U (en) * | 2015-01-30 | 2015-09-16 | 中天储能科技有限公司 | A kind of column type Li-ion cell filling device |
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| CN104681774A (en) | 2015-06-03 |
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Effective date of registration: 20170531 Address after: 226463 Zhongtian village, Hekou Town, Rudong County, Jiangsu Patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu Address before: Hongxing economic and Technological Development Zone, Jiangsu province Nantong City Road 226000 No. 36 Patentee before: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. |
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Effective date of registration: 20170717 Address after: Hongxing Road 226000 Jiangsu Nantong economic and Technological Development Zone No. 36 Patentee after: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. Address before: 226463 Zhongtian village, Hekou Town, Rudong County, Jiangsu Patentee before: Zhongtian Science and Technology Co., Ltd., Jiangsu |
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Effective date of registration: 20190410 Address after: 226000 No. 36 Hongxing East Road, Nantong Economic and Technological Development Zone, Nantong City, Jiangsu Province Co-patentee after: Zhongtian Science and Technology Co., Ltd., Jiangsu Patentee after: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. Address before: 226000 No. 36 Hongxing East Road, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee before: ZHONGTIAN ENERGY STORAGE TECHNOLOGY CO., LTD. |
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