CN108777285A - A kind of online collection method of lithium battery electrolytes - Google Patents
A kind of online collection method of lithium battery electrolytes Download PDFInfo
- Publication number
- CN108777285A CN108777285A CN201810576502.7A CN201810576502A CN108777285A CN 108777285 A CN108777285 A CN 108777285A CN 201810576502 A CN201810576502 A CN 201810576502A CN 108777285 A CN108777285 A CN 108777285A
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- China
- Prior art keywords
- collection device
- capillary
- battery core
- air pressure
- electrolyte
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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
- H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell 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)
- Filling, Topping-Up Batteries (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the invention discloses a kind of online collection method of lithium battery electrolytes, this method includes：A through-hole is opened up on the head cover of lithium battery electric core；It is embedded to capillary in the side of the battery core, the capillary passes through the through-hole, one end to be flushed with the bottom of the battery core, the external collection device of the other end；Adjust the air pressure inside the collection device so that when the air pressure inside the collection device is less than the air pressure inside the battery core, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered the collection device.Technical solution provided in an embodiment of the present invention, by being embedded to capillary inside battery core, so that electrolyte receives the collection that electrolyte is realized in extravasation under the pressure controls of acquisition means outside, the on-line monitoring to battery core electrolyte inside can be achieved, the demand for not only reducing battery core reduces cost, and also without dismantling battery core, efficiency is improved, manpower and time cost are reduced.
Description
Technical field
The present embodiments relate to the online collections of technical field of lithium ion more particularly to a kind of lithium battery electrolytes
Method.
Background technology
Since lithium ion battery has high-energy density, high voltage and the properties such as environmental-friendly, it is widely used in just
It takes on formula power equipment (such as mobile phone, computer) and electric vehicle.Traditional lithium ion battery includes battery core, package battery core
Packaging bag and the electrolyte being filled in packaging bag.The electrolyte conductive medium important as inside lithium ion cell, dosage
And additive level directly affects the service life of lithium ion battery.Since the addition of electrolyte and additive is rule of thumb
Value (many experiments) is got, and can not know for sure its specific dosage in the process of running, and also rare people pays close attention to lithium at present
The actual consumption of ion battery battery core electrolyte inside, excessive amount can aggravate cost and damage energy density, and very few amount is again
The security performance that can influence lithium ion battery causes lithium ion battery to be unable to normal use, or even causes safety accident.
Therefore, when constantly consuming electrolyte and additive in the long-term test process of battery core, quantify service life and electrolyte
And the relationship of electrolysis additive amount, the reservoir quantity of electrolyte can be limited to greatest extent, while ensureing service life
Waste is not generated.However the dismantling battery core that relies on basic at present collects the electrolyte data inside the battery core of different service lifes, consumes
Take a large amount of human and material resources and financial resources.
Invention content
The present invention provides a kind of online collection method of lithium battery electrolytes, to solve existing the deficiencies in the prior art.
To achieve the above object, the present invention provides technical solution below：
A kind of online collection method of lithium battery electrolytes, the method includes：
A through-hole is opened up on the head cover of lithium battery electric core；
It is embedded to capillary in the side of the battery core, the capillary passes through the through-hole, the bottom of one end and the battery core
Portion flushes, the external collection device of the other end；
Adjust the air pressure inside the collection device so that the air pressure inside the collection device is less than in the battery core
When the air pressure in portion, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered the collection device.
Further, in the online collection method, the air pressure adjusted inside the collection device so that when described
When air pressure inside collection device is less than air pressure inside the battery core, electrolyte in the lithium battery is from the capillary stream
The step of going out, being directly entered the collection device include：
The online timing node for collecting lithium battery electrolytes of setting；
According to the timing node, the air pressure inside the collection device is adjusted so that inside the collection device
When air pressure is less than the air pressure inside the battery core, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered institute
State collection device.
Further, in the online collection method, the capillary is sealed by AB glue with the head cover and is fixed.
Further, in the online collection method, the aperture of the through-hole is 3mm.
Further, in the online collection method, the internal diameter of the capillary is 0.3~0.5mm, outer diameter is 2~
3mm。
Further, in the online collection method, the material of the capillary is Mylar materials.
Further, in the online collection method, the collection device is cillin bottle.
Compared with prior art, the invention has the advantages that：
1, the electrolyte inside lithium ion battery cell can be collected online, realize the online prison to battery core electrolyte inside
Control；
2, battery core demand is reduced, and reduces cost；
3, without disassembling battery core, efficiency is improved, manpower and time cost are reduced.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow diagram of the online collection method for lithium battery electrolytes that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of the online collection method of lithium battery electrolytes provided by Embodiment 2 of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Referring to Fig. 1, the present embodiment one provides a kind of online collection method of lithium battery electrolytes, including step：
S101, a through-hole is opened up on the head cover of lithium battery electric core.
Wherein, the through-hole is opened in the marginal position of the head cover, and the aperture of the through-hole is 3mm.
It should be noted that the battery core of the lithium battery has shell encapsulation, the head cover and the case weld.
Specifically, head cover is before welding, the through-hole that an aperture is 3mm is opened up in its marginal position.
S102, it is embedded to capillary in the side of the battery core, the capillary passes through the through-hole, one end and the battery core
Bottom flush, the external collection device of the other end.
Wherein, the capillary is sealed by AB glue with the head cover and is fixed；The internal diameter of the capillary be 0.3~
0.5mm, outer diameter are 2~3mm；The material of the capillary is Mylar (mylar) material, and Mylar materials have chemistry lazy
Property and heat safe characteristic, do not react with the electrolyte inside battery core, can keep stable at high temperature.
It should be noted that bath deposition free inside battery core, in battery core bottom, the bottom of capillary and battery core is neat
It is flat, ensure that it can be inserted under the liquid level of free electrolyte.
Specifically, the battery core is embedded to capillary before being put into shell, in its side, the capillary passes through described logical
Hole, one end are flushed with the bottom of the battery core, the external collection device of the other end.
Air pressure inside S103, the adjusting collection device so that the air pressure inside the collection device is less than described
When air pressure inside battery core, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered the collection device.
Wherein, the collection device is cillin bottle, and the bottle cap of the cillin bottle is equipped with inlet end and outlet side.
It should be noted that realizing the collection of electrolyte by adjusting the air pressure inside of external cillin bottle.When external XiLin
When air pressure inside bottle is less than the air pressure inside battery core, electrolyte is seeped into along extracapillary inside cillin bottle, and capillary inner diameter is about
0.3~0.5mm will not have an impact the air pressure inside battery core, and electrolyte is since capillarity is along inner hole wall extravasation.
Technical solution provided in an embodiment of the present invention, by being embedded to capillary inside battery core so that electrolyte is external
Extravasation realizes the collection of electrolyte, it can be achieved that on-line monitoring to battery core electrolyte inside, no under the pressure control of collection device
The demand for only reducing battery core, reduces cost, and also without dismantling battery core, improves efficiency, reduce manpower and time at
This.
Embodiment two
Fig. 2 is a kind of flow diagram of the online collection method of lithium battery electrolytes provided by Embodiment 2 of the present invention,
The present embodiment is " described to adjust inside the collection device to step S103 on the basis of the technical solution that embodiment one provides
Air pressure so that when air pressure inside the collection device is less than air pressure inside the battery core, the electricity in the lithium battery
Solution liquid is flowed out from the capillary, is directly entered the collection device " it is further optimized.It is identical as the various embodiments described above or
Details are not described herein for the explanation of corresponding term.The method of the present embodiment can specifically include following steps：
The online timing node for collecting lithium battery electrolytes of setting；
According to the timing node, the air pressure inside the collection device is adjusted so that inside the collection device
When air pressure is less than the air pressure inside the battery core, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered institute
State collection device.
Based on above-mentioned optimization, as shown in Fig. 2, a kind of online collection method of lithium battery electrolytes provided in this embodiment,
It may include steps of：
S201, a through-hole is opened up on the head cover of lithium battery electric core.
S202, it is embedded to capillary in the side of the battery core, the capillary passes through the through-hole, one end and the battery core
Bottom flush, the external collection device of the other end.
S203, the online timing node for collecting lithium battery electrolytes of setting.
It should be noted that lithium ion battery cell (cycle, storage) during long-term test, needs different
Timing node is collected the electrolyte of its inside, realize real time monitoring, specific acquisition time node according to actual conditions and
It is fixed.
S204, according to the timing node, adjust the air pressure inside the collection device so that when in the collection device
When the air pressure in portion is less than air pressure inside the battery core, the electrolyte in the lithium battery is flowed out from the capillary, directly into
Enter the collection device.
Technical solution provided in an embodiment of the present invention, by being embedded to capillary inside battery core so that electrolyte is external
Extravasation realizes the collection of electrolyte, it can be achieved that on-line monitoring to battery core electrolyte inside, no under the pressure control of collection device
The demand for only reducing battery core, reduces cost, and also without dismantling battery core, improves efficiency, reduce manpower and time at
This.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
Modification or replacement, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (7)
1. a kind of online collection method of lithium battery electrolytes, which is characterized in that including：
A through-hole is opened up on the head cover of lithium battery electric core；
It is embedded to capillary in the side of the battery core, the capillary passes through the through-hole, and one end and the bottom of the battery core are neat
It is flat, the external collection device of the other end；
Adjust the air pressure inside the collection device so that the air pressure inside the collection device is less than inside the battery core
When air pressure, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered the collection device.
2. online collection method according to claim 1, which is characterized in that the gas adjusted inside the collection device
Pressure so that when the air pressure inside the collection device is less than the air pressure inside the battery core, the electrolyte in the lithium battery
It is flowed out from the capillary, the step of being directly entered the collection device includes：
The online timing node for collecting lithium battery electrolytes of setting；
According to the timing node, the air pressure inside the collection device is adjusted so that the air pressure inside the collection device
When less than air pressure inside the battery core, the electrolyte in the lithium battery is flowed out from the capillary, is directly entered the receipts
Acquisition means.
3. online collection method according to claim 1, which is characterized in that the capillary passes through AB glue with the head cover
Sealing is fixed.
4. online collection method according to claim 1, which is characterized in that the aperture of the through-hole is 3mm.
5. online collection method according to claim 3, which is characterized in that the internal diameter of the capillary be 0.3~
0.5mm, outer diameter are 2~3mm.
6. online collection method according to claim 5, which is characterized in that the material of the capillary is Mylar materials.
7. online collection method according to claim 1, which is characterized in that the collection device is cillin bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576502.7A CN108777285A (en) | 2018-06-06 | 2018-06-06 | A kind of online collection method of lithium battery electrolytes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576502.7A CN108777285A (en) | 2018-06-06 | 2018-06-06 | A kind of online collection method of lithium battery electrolytes |
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| Publication Number | Publication Date |
|---|---|
| CN108777285A true CN108777285A (en) | 2018-11-09 |
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| CN201810576502.7A Pending CN108777285A (en) | 2018-06-06 | 2018-06-06 | A kind of online collection method of lithium battery electrolytes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049693A (en) * | 2021-01-26 | 2021-06-29 | 江苏中兴派能电池有限公司 | Extraction method of free electrolyte of lithium ion battery |
Citations (6)
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|---|---|---|---|---|
| DE3826423C1 (en) * | 1988-08-03 | 1990-03-01 | Sonnenschein Lithium Gmbh, 6470 Buedingen, De | Safety device for an electrochemical cell and method |
| CN1160457A (en) * | 1994-10-11 | 1997-09-24 | 奥里皮欧·斯特持若 | Lid for accumulator batteries and charging devices co-operating with said lid |
| CN1227673A (en) * | 1996-06-21 | 1999-09-01 | 汉斯·于尔根·波林 | Battery |
| JP2002305020A (en) * | 2001-04-03 | 2002-10-18 | Japan Storage Battery Co Ltd | Sealed lead-acid battery |
| CN203039017U (en) * | 2012-12-28 | 2013-07-03 | 淄博鑫旭电源科技有限公司 | Accumulator efficient acid discharge system |
| EP3096373A1 (en) * | 2015-05-20 | 2016-11-23 | Jaroslav Polivka | Liquid electrolyte lithium accumulator and a method of making the same |
-
2018
- 2018-06-06 CN CN201810576502.7A patent/CN108777285A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3826423C1 (en) * | 1988-08-03 | 1990-03-01 | Sonnenschein Lithium Gmbh, 6470 Buedingen, De | Safety device for an electrochemical cell and method |
| CN1160457A (en) * | 1994-10-11 | 1997-09-24 | 奥里皮欧·斯特持若 | Lid for accumulator batteries and charging devices co-operating with said lid |
| CN1227673A (en) * | 1996-06-21 | 1999-09-01 | 汉斯·于尔根·波林 | Battery |
| JP2002305020A (en) * | 2001-04-03 | 2002-10-18 | Japan Storage Battery Co Ltd | Sealed lead-acid battery |
| CN203039017U (en) * | 2012-12-28 | 2013-07-03 | 淄博鑫旭电源科技有限公司 | Accumulator efficient acid discharge system |
| EP3096373A1 (en) * | 2015-05-20 | 2016-11-23 | Jaroslav Polivka | Liquid electrolyte lithium accumulator and a method of making the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049693A (en) * | 2021-01-26 | 2021-06-29 | 江苏中兴派能电池有限公司 | Extraction method of free electrolyte of lithium ion battery |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181109 |
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