CN106058141A - Vacuum injection device for lithium ion batteries - Google Patents
Vacuum injection device for lithium ion batteries Download PDFInfo
- Publication number
- CN106058141A CN106058141A CN201610648872.8A CN201610648872A CN106058141A CN 106058141 A CN106058141 A CN 106058141A CN 201610648872 A CN201610648872 A CN 201610648872A CN 106058141 A CN106058141 A CN 106058141A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- battery
- lithium ion
- electrolyte
- mozzle
- Prior art date
- 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.)
- Pending
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Classifications
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a vacuum injection device for lithium ion batteries. The vacuum injection device comprises an injection machine. An electrohydraulic caching tank is arranged in a vacuum chamber of the injection machine's chamber. The electrohydraulic caching tank is connected to a HIBAR pump through a valve. An outlet of the electrohydraulic caching tank is connected to a buffer draft tube, the tube wall of which is uniformly provided with micropores for leakage of an electrolyte. The injection machine is connected to a vacuum pump through a valve. Through the technical scheme, high vacuum injection is realized, and the marginal conductive shell is prevented from entering the inside of a battery with the electrolyte. Then, micro-short circuiting and low voltage rate of the battery core are greatly reduced, product quality is guaranteed, and injection efficiency of the battery core is significantly improved.
Description
Technical field
The present invention relates to a kind of battery liquid-filling device, be particularly well-suited to during the quick fluid injection of column lithium ion battery make
With.
Background technology
In lithium ion battery production, manufacture process, moisture Control runs through whole manufacture process, is also products quality guarantee
Key.In fluid injection operation, the speed of fluid injection speed not only affects production efficiency, also determines the length of battery core cruelly empty time
Short, the sudden and violent empty time of battery core is the longest, and the amount absorbing moisture from surrounding will be the biggest, thus directly influences the matter of battery core
Amount, therefore quickly fluid injection is an up the key of product quality.
The energy density of lithium ion battery product is required increasingly by portable type electronic product and electrokinetic cell system at present
Height, especially requires more and more higher to battery volume specific energy density, and therefore, the assembling degree of battery core is the highest, fluid injection difficulty.
Conventional fluid injection mode is first to battery core cavity evacuation, then injects electro-hydraulic to battery core.In theory electricity cavity is applied
Vacuum is the highest, and fluid injection efficiency is the highest.But too high vacuum easily causes electrolyte high speed impact battery core top edge, causes
The shedding of battery core edge, causes electrical powder body to enter inside battery core with electrolyte, causes that self-discharge of battery is big, low pressure, even short circuit
Etc. the generation of bad phenomenon, in above actual application, vacuum is the most relatively low, generally requires repeatedly, repeatedly fluid injection, static ginseng
Liquid, fluid infusion, fluid injection mode efficiency is low, unstable product quality.
How to be developed to fine vacuum fluid injection, the quick priming device that battery core pole plate will not cause again damage simultaneously is this
Skilled person's sustained improvement and the target of innovation.
Summary of the invention
The task of the present invention is to propose one to avoid the easy shedding in electro-hydraulic high speed impact battery core internal polar plate edge, causes battery micro-
Short circuit, a kind of lithium ion battery vacuum electrolyte filling device of Improving The Quality of Products.
The task of the present invention is done in such a way that it includes filling machine, it is characterised in that: the vacuum of described filling machine cavity
Placing an electro-hydraulic buffer tank in cavity, described electro-hydraulic buffer tank is connected with HighPower pump by valve, the outlet of electro-hydraulic buffer tank
On be connected with buffering mozzle, the tube wall of described buffering mozzle is evenly distributed with the micropore of the electrolyte that leaks.Described buffering is led
The aperture of flow tube is between 0.05-2mm, and micropore is away from the upper and lower edge of battery roll core pole plate at least 2mm, the height of buffering mozzle
Close to battery diaphragm height.Described filling machine is connected with vacuum pump by valve.
The present invention has the effect that the technical program achieves fine vacuum fluid injection, prevent simultaneously edge conductive housing with
Electro-hydraulic entrance inside battery, greatly reduces micro-short circuit and the low pressure ratio of battery core, and ensures product quality, be obviously improved electricity
The fluid injection efficiency of core.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；Fig. 2 is the structural representation of buffering mozzle.
Drawing illustrates: 1, vacuum pump, 2, battery container, 3, battery roll core pole plate, 4, buffering mozzle, 5, fluid injection machine cavity
Body, 6, electro-hydraulic buffer tank, 7, HighPower pump, 8, micropore.
Detailed description of the invention
The technical program is constituted vacuum electrolyte filling device by filling machine cavity 5, electro-hydraulic buffer tank 6 and buffering mozzle 4.Described
Placing an electro-hydraulic buffer tank 6 in the vacuum cavity of filling machine cavity 5, described electro-hydraulic buffer tank is by valve with HighPower pump 7 even
Connecing, described filling machine is connected with vacuum pump 1 by valve, and the outlet of electro-hydraulic buffer tank is connected with buffering mozzle 4, described buffering
Being evenly distributed with the micropore 8 of the electrolyte that leaks on the tube wall of mozzle, aperture is between 0.05-2mm, and micropore is away from battery roll core pole
The upper and lower edge of plate 3 at least 2mm, it is therefore an objective to prevent electro-hydraulic impact pole plate marginal position, prevents plate shelling, buffering mozzle
Highly close to battery diaphragm height.Battery roll core pole plate is had in battery core housing 1.
During fluid injection, buffering mozzle 4 is inserted on the battery roll core pole plate 3 in battery container 2, opens vacuum pump, to electricity
Evacuation in the housing of pond, then opens HighPower pump, the electrolyte in electro-hydraulic buffer tank under bigger pressure by buffering mozzle
The micropore of wall distribution enters in battery roll core pole plate 3, completes battery core fluid injection, and whole process electrolyte will not impact battery core pole plate
Edge, it is achieved thereby that fine vacuum fluid injection, prevents again edge conductive housing from entering inside battery with electrolyte simultaneously, is substantially reduced
The micro-short circuit of battery core and low pressure ratio, be obviously improved the fluid injection effect of battery roll core pole plate on the premise of ensureing product quality
Rate.
Claims (3)
1. a lithium ion battery vacuum electrolyte filling device, it includes filling machine, it is characterised in that: the vacuum of described filling machine cavity
Placing an electro-hydraulic buffer tank in cavity, described electro-hydraulic buffer tank is connected with HighPower pump by valve, the outlet of electro-hydraulic buffer tank
On be connected with buffering mozzle, the tube wall of described buffering mozzle is evenly distributed with the micropore of the electrolyte that leaks.
Lithium ion battery vacuum electrolyte filling device the most according to claim 1, it is characterised in that: the hole of described buffering mozzle
Footpath is between 0.05-2mm, and micropore is away from the upper and lower edge of battery roll core pole plate at least 2mm, and the height of buffering mozzle is close to battery
Barrier film height.
Lithium ion battery vacuum electrolyte filling device the most according to claim 1, it is characterised in that: described filling machine passes through valve
It is connected with vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648872.8A CN106058141A (en) | 2016-08-10 | 2016-08-10 | Vacuum injection device for lithium ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648872.8A CN106058141A (en) | 2016-08-10 | 2016-08-10 | Vacuum injection device for lithium ion batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106058141A true CN106058141A (en) | 2016-10-26 |
Family
ID=57481763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610648872.8A Pending CN106058141A (en) | 2016-08-10 | 2016-08-10 | Vacuum injection device for lithium ion batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058141A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5882475A (en) * | 1981-11-12 | 1983-05-18 | Hitachi Maxell Ltd | Sealed battery |
| CN200993481Y (en) * | 2006-12-15 | 2007-12-19 | 海尔集团公司 | Water inlet insulative pipe for reducing its impact force and electric water heater |
| CN201243051Y (en) * | 2008-08-20 | 2009-05-20 | 苏州星恒电源有限公司 | Apparatus for pouring lithium battery electrolytic solution |
| CN101545843A (en) * | 2009-04-16 | 2009-09-30 | 西安交通大学 | Drag-reduction property experimental apparatus for surfactant solution |
| CN202758967U (en) * | 2012-08-22 | 2013-02-27 | 江苏理士电池有限公司 | Acid-adding head of lead-acid storage battery vacuumizing acid-adding machine |
| CN105355835A (en) * | 2015-11-07 | 2016-02-24 | 合肥国轩高科动力能源有限公司 | Multistage buffer continuous vacuum adsorption-type lithium ion battery liquid injection device |
| CN205944229U (en) * | 2016-08-10 | 2017-02-08 | 河南新太行电源股份有限公司 | Lithium ion battery vacuum infusion device |
-
2016
- 2016-08-10 CN CN201610648872.8A patent/CN106058141A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5882475A (en) * | 1981-11-12 | 1983-05-18 | Hitachi Maxell Ltd | Sealed battery |
| CN200993481Y (en) * | 2006-12-15 | 2007-12-19 | 海尔集团公司 | Water inlet insulative pipe for reducing its impact force and electric water heater |
| CN201243051Y (en) * | 2008-08-20 | 2009-05-20 | 苏州星恒电源有限公司 | Apparatus for pouring lithium battery electrolytic solution |
| CN101545843A (en) * | 2009-04-16 | 2009-09-30 | 西安交通大学 | Drag-reduction property experimental apparatus for surfactant solution |
| CN202758967U (en) * | 2012-08-22 | 2013-02-27 | 江苏理士电池有限公司 | Acid-adding head of lead-acid storage battery vacuumizing acid-adding machine |
| CN105355835A (en) * | 2015-11-07 | 2016-02-24 | 合肥国轩高科动力能源有限公司 | Multistage buffer continuous vacuum adsorption-type lithium ion battery liquid injection device |
| CN205944229U (en) * | 2016-08-10 | 2017-02-08 | 河南新太行电源股份有限公司 | Lithium ion battery vacuum infusion device |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |
|
| WD01 | Invention patent application deemed withdrawn after publication |