CN110112359A - A kind of high-capacity lithium battery electrolyte filling method - Google Patents
A kind of high-capacity lithium battery electrolyte filling method Download PDFInfo
- Publication number
- CN110112359A CN110112359A CN201910501011.0A CN201910501011A CN110112359A CN 110112359 A CN110112359 A CN 110112359A CN 201910501011 A CN201910501011 A CN 201910501011A CN 110112359 A CN110112359 A CN 110112359A
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- Prior art keywords
- liquid
- lithium battery
- taken out
- evacuator
- filling method
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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
-
- 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
A kind of high-capacity lithium battery electrolyte filling method of the present invention; including following method and step: being evacuated to certain vacuum degree → injection dry-run protection gas → by the electrolyte in liquid injecting box using evacuator and be injected into lithium battery by the liquid injection port of fluid injection bottom of the tube, and stood to lithium battery；A kind of high-capacity lithium battery electrolyte filling method of the present invention, pressure maintaining protection is continued growing after evacuation, liquid under being assisted in high pressure and high vacuum, intercell is enabled to greatly shorten the fluid injection time in identical guarantor's liquid measure, to be conducive to improve battery core performance, by evacuator by the shape that is gradually evacuated inside liquid injection pipe, and evacuator comes with pressure tester, the pressure data according to pressure tester, dry-run protection gas is injected by injecting hole at various pressures, then guarantee that the liquid of injection will not lead to temperature change because of extraneous temperature change by the effect of heating tube.
Description
Technical field
The present invention relates to lithium battery fluid injection technical field, in particular to a kind of high-capacity lithium battery electrolyte filling method.
Background technique
Lithium system battery is divided into lithium battery and lithium ion battery.What mobile phone and laptop used is all lithium ion battery,
Usual people's custom is called lithium battery.Battery generally uses the material for containing elemental lithium as electrode, is modern high performance battery
Representative.And real lithium battery is rarely applied to day electronic product since risk is big.Lithium ion battery is by Sony
Company succeeds in developing at first in nineteen ninety.It is formation cathode (traditional lithium in lithium ion insertion carbon (petroleum coke and graphite)
Battery lithium or lithium alloy make cathode).Positive electrode often uses LixCoO2, also uses LixNiO2 and LixMnO4, and electrolyte is used
LiPF6+ divinyl carbonic ester (EC)+dimethyl carbonate (DMC).
Lithium ion battery in charge and discharge process, lithium ion migrated between positive and negative anodes as carrier by electrolyte, because
This fluid injection is one of important procedure in lithium ion battery production process, since lithium salts can react with water in electrolyte, because
This battery core injection process need to carry out under the low dew point environment of sealing, while battery core water suction causes battery core performance to become in order to prevent
Difference need to guarantee that fluid injection can be completed in a short time.Traditional battery liquid-filling time is too long, causes battery water suction excessive, while high
Partial electrolyte liquid can be extracted out, influence fluid injection consistency by vacuum, eventually lead to that battery performance is poor, influence the using effect of battery.
Summary of the invention
The main purpose of the present invention is to provide a kind of high-capacity lithium battery electrolyte filling methods, can effectively solve background technique
The problems in.
To achieve the above object, the invention provides the following technical scheme: a kind of high-capacity lithium battery electrolyte filling method, including such as
Lower method and step:
A. it is evacuated to certain vacuum degree using evacuator, keeps 60-120s；
B. injection dry-run protection gas keeps 60-120s to 0.4Mpa-0.5Mpa；
C. the electrolyte in liquid injecting box is injected into lithium battery by the liquid injection port of fluid injection bottom of the tube, and quiet to lithium battery
Set 100-600s.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.75Mpa ∽ -0.85Mpa.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.75Mpa ∽ -0.85Mpa.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.85Mpa ∽ -0.90Mpa.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.85Mpa ∽ -0.90Mpa.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.85Mpa ∽ -0.90Mpa.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.85Mpa ∽ -0.90Mpa.
Preferably, the vacuum degree that evacuator is taken out in the step a can be -0.85Mpa ∽ -0.90Mpa.
A kind of liquid-injection equipment of high-capacity lithium battery electrolyte filling method, including evacuator, liquid injecting box and liquid injection pipe, the pumping
The bottom end of vacuum machine is fixedly connected with power supply by screw and nut, and the upper surface of the power supply is fixedly connected with liquid injecting box and heating
Pipe, the heating tube are located at the outer surface of liquid injection pipe, and liquid injecting box one end fixation is communicated with communicating pipe, and the communicating pipe is remote
One end from the liquid injecting box is provided with injecting hole, and the bottom end fixation of the liquid injecting box is communicated with connecting tube, the connecting tube
One end is fixedly connected with pump machine, and the bottom end fixation of the connecting tube is communicated with liquid injection pipe, and the surface of the liquid injection pipe passes through screw
Nut is fixedly connected with track, and the surface of the track is fixedly connected with slide plate by pulley, the slide plate far from track one
End is fixedly connected with liquid injection port, and the liquid injection port is communicated with liquid injection pipe, and the power supply is fixed far from one end of the evacuator
It is connected with temperature inductor, the bottom end of the temperature inductor is fixedly connected with control switch plate, and the lower surface of the power supply is logical
It crosses screw and nut and is fixedly connected with two support rods, the support rod is provided with integrally formed branch far from one end of the power supply
Support seat.
Preferably, the evacuator, pump machine, liquid injecting box are communicated with liquid injection pipe, the power supply and evacuator, pump machine,
Heating tube, temperature inductor, control switch plate are electrical connected, the control switch plate and evacuator, pump machine, heating tube, temperature
Degree inductor is electrical connected；It is provided with air-stopping valve at the liquid injection port, the quantity of the air-stopping valve and liquid injection port is one or two, and
It corresponds, works convenient for evacuator.
Compared with prior art, the invention has the following beneficial effects: this kind of high-capacity lithium battery electrolyte filling methods, true taking out
Pressure maintaining protection is continued growing after sky, liquid under assisting in high pressure and high vacuum enables intercell in identical guarantor's liquid
The fluid injection time is greatly shortened in the case of amount, to be conducive to improve battery core performance；
When in use, lithium ion battery is fixed at liquid injection port, opens air-stopping valve, at this moment pass through the work of control switch plate
With evacuator is opened, by the shape that is gradually evacuated inside liquid injection pipe, and evacuator comes with pressure tester, according to pressure
Pressure data shown by tester injects dry-run protection gas by injecting hole at various pressures, then passes through heating tube
Effect guarantee that the liquid of injection will not lead to temperature change because of extraneous temperature change, so certifiable fluid injection when temperature one
It causes, then removes battery from liquid injection port after battery has infused liquid, close air-stopping valve, prevent gas leak, guarantee safety, slide plate
Upper and lower movement can be carried out by the effect of track, conveniently adapts to different size of lithium battery, so that whole device uses
Diversity, do not used without can be carried out because of the different of battery sizes.
Detailed description of the invention
Fig. 1 is a kind of high-capacity lithium battery priming device overall schematic of the present invention；
In figure: 1, evacuator；2, liquid injecting box；3, connecting tube；4, pump machine；5, liquid injection pipe；6, communicating pipe；7, injecting hole；
8, heating tube；9, temperature inductor；10, control switch plate；11, power supply；12, support rod；13, support base；14, liquid injection port；15,
Slide plate；16, track；17, air-stopping valve.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
As shown in Figure 1, a kind of high-capacity lithium battery electrolyte filling method, including method and step are as follows:
A. it is evacuated to certain vacuum degree using evacuator 1, keeps 60-120s；
B. injection dry-run protection gas keeps 60-120s to 0.4Mpa-0.5Mpa；
C. the electrolyte in liquid injecting box 2 is injected into lithium battery by the liquid injection port 14 of 5 bottom of liquid injection pipe, and to lithium electricity
Pond stands 100-600s.
The vacuum degree that evacuator 1 is taken out in step a can be -0.75Mpa ∽ -0.85Mpa.
The vacuum degree that evacuator 1 is taken out in step a can be -0.75Mpa ∽ -0.85Mpa.
The vacuum degree that evacuator 1 is taken out in step a can be -0.85Mpa ∽ -0.90Mpa.
The vacuum degree that evacuator 1 is taken out in step a can be -0.85Mpa ∽ -0.90Mpa.
The vacuum degree that evacuator 1 is taken out in step a can be -0.85Mpa ∽ -0.90Mpa.
The vacuum degree that evacuator 1 is taken out in step a can be -0.85Mpa ∽ -0.90Mpa.
The vacuum degree that evacuator 1 is taken out in step a can be -0.85Mpa ∽ -0.90Mpa.
Embodiment 2
As shown in Figure 1, a kind of liquid-injection equipment of high-capacity lithium battery electrolyte filling method based on embodiment one, including vacuumize
The bottom end of machine 1, liquid injecting box 2 and liquid injection pipe 5, evacuator 1 is fixedly connected with power supply 11, the upper table of power supply 11 by screw and nut
Face is fixedly connected with liquid injecting box 2 and heating tube 8, and heating tube 8 is located at the outer surface of liquid injection pipe 5, the fixed connection in 2 one end of liquid injecting box
There is communicating pipe 6, communicating pipe 6 one end of liquid injecting box 2 is provided with injecting hole 7, the bottom end fixation of liquid injecting box 2 is communicated with connecting tube
3, one end of connecting tube 3 is fixedly connected with pump machine 4, and evacuator 1 comes with pressure tester, according to pressure tester
Pressure data, at various pressures by injecting hole 7 inject dry-run protection gas, dry-run protection gas can be nitrogen, then
Guarantee that the liquid of injection will not lead to temperature change because of extraneous temperature change by the effect of heating tube 8, can guarantee in this way
Temperature is consistent when fluid injection；
The bottom end fixation of connecting tube 3 is communicated with liquid injection pipe 5, and when in use, lithium ion battery is fixed at liquid injection port 14,
Air-stopping valve 17 is opened, evacuator 1 is at this moment opened by the effect of control switch plate 10, will be gradually pumped into inside liquid injection pipe 5 true
Empty shape；
The surface of liquid injection pipe 5 is fixedly connected with track 16 by screw and nut, and the surface of track 16 connects by the way that pulley is fixed
It is connected to slide plate 15, slide plate 15 is fixedly connected with liquid injection port 14 far from one end of track 16, and slide plate 15 can by the effect of track 16
Movement above and below carrying out, conveniently adapts to different size of lithium battery, so that the diversity that whole device uses, not to because of electricity
The different of pond size use without can be carried out；
Liquid injection port 14 is communicated with liquid injection pipe 5, and power supply 11 is fixedly connected with temperature inductor 9 far from one end of evacuator 1,
The bottom end of temperature inductor 9 is fixedly connected with control switch plate 10, and the lower surface of power supply 11 is fixedly connected with by screw and nut
Two support rods 12, support rod 12 are provided with integrally formed support base 13 far from one end of power supply 11.
As shown in Figure 1, evacuator 1, pump machine 4, liquid injecting box 2 are communicated with liquid injection pipe 5, power supply 11 and evacuator 1, pump machine
4, heating tube 8, temperature inductor 9, control switch plate 10 are electrical connected, control switch plate 10 and evacuator 1, pump machine 4, heating
Pipe 8, temperature inductor 9 are electrical connected；It is provided with air-stopping valve 17 at liquid injection port 14, the quantity of air-stopping valve 17 and liquid injection port 14 is one
Two, and correspond, it works convenient for evacuator 1, removes battery from liquid injection port 14 after battery has infused liquid, close
Air-stopping valve 17 prevents gas leak, guarantees safety.
It should be noted that the present invention is a kind of high-capacity lithium battery electrolyte filling method, when in use, when in use, by lithium
Electronic cell is fixed at liquid injection port 14, opens air-stopping valve 17, at this moment opens evacuator by the effect of control switch plate 10
1, by the shape that is gradually evacuated inside liquid injection pipe 5, and evacuator 1 comes with pressure tester, is shown according to pressure tester
The pressure data shown injects dry-run protection gas by injecting hole 7 at various pressures, is then protected by the effect of heating tube 8
The liquid for demonstrate,proving injection will not lead to temperature change because of extraneous temperature change, and temperature is consistent when can guarantee fluid injection in this way, then
Battery is removed from liquid injection port 14 after battery has infused liquid, closes air-stopping valve 17, prevents gas leak, guarantees safety, slide plate 15
Upper and lower movement can be carried out by the effect of track 16, conveniently adapt to different size of lithium battery, so that whole device makes
Diversity is not used without can be carried out because of the different of battery sizes.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of high-capacity lithium battery electrolyte filling method, which is characterized in that including following method and step:
A. it is evacuated to certain vacuum degree using evacuator (1), keeps 60-120s；
B. injection dry-run protection gas keeps 60-120s to 0.4Mpa-0.5Mpa；
C. the electrolyte in liquid injecting box (2) is injected into lithium battery by the liquid injection port (14) of liquid injection pipe (5) bottom, and to lithium
Battery standing 100-600s.
2. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.75Mpa ∽ -0.85Mpa.
3. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.75Mpa ∽ -0.85Mpa.
4. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.85Mpa ∽ -0.90Mpa.
5. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.85Mpa ∽ -0.90Mpa.
6. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.85Mpa ∽ -0.90Mpa.
7. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.85Mpa ∽ -0.90Mpa.
8. a kind of high-capacity lithium battery electrolyte filling method according to claim 1, which is characterized in that taken out in the step a true
The vacuum degree that empty machine (1) is taken out can be -0.85Mpa ∽ -0.90Mpa.
9. a kind of liquid-injection equipment of high-capacity lithium battery electrolyte filling method according to claim 1, including evacuator (1),
Liquid injecting box (2) and liquid injection pipe (5), which is characterized in that the bottom end of the evacuator (1) is fixedly connected with electricity by screw and nut
Source (11), the upper surface of the power supply (11) are fixedly connected with liquid injecting box (2) and heating tube (8), and the heating tube (8) is located at note
The outer surface of liquid pipe (5), liquid injecting box (2) one end fixation are communicated with communicating pipe (6), and the communicating pipe (6) is far from described
One end of liquid injecting box (2) is provided with injecting hole (7), and the bottom end fixation of the liquid injecting box (2) is communicated with connecting tube (3), the company
One end of adapter tube (3) is fixedly connected with pump machine (4), and the bottom end fixation of the connecting tube (3) is communicated with liquid injection pipe (5), the note
The surface of liquid pipe (5) is fixedly connected with track (16) by screw and nut, and the surface of the track (16) connects by the way that pulley is fixed
It is connected to slide plate (15), the slide plate (15) is fixedly connected with liquid injection port (14), the liquid injection port far from the one end of track (16)
(14) it is communicated with liquid injection pipe (5), the power supply (11) is fixedly connected with temperature inductor far from the one end of the evacuator (1)
(9), the bottom end of the temperature inductor (9) is fixedly connected with control switch plate (10), and the lower surface of the power supply (11) passes through
Screw and nut is fixedly connected with two support rods (12), and the support rod (12) is provided with one far from the one end of the power supply (11)
Body formed support base (13).
10. a kind of liquid-injection equipment of high-capacity lithium battery electrolyte filling method according to claim 9, which is characterized in that described
Evacuator (1), pump machine (4), liquid injecting box (2) are communicated with liquid injection pipe (5), the power supply (11) and evacuator (1), pump machine
(4), heating tube (8), temperature inductor (9), control switch plate (10) are electrical connected, the control switch plate (10) with vacuumize
Machine (1), pump machine (4), heating tube (8), temperature inductor (9) are electrical connected；Air-stopping valve is provided at the liquid injection port (14)
(17), the quantity of the air-stopping valve (17) and liquid injection port (14) is one or two, and is corresponded, and is carried out convenient for evacuator (1)
Work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910501011.0A CN110112359A (en) | 2019-06-11 | 2019-06-11 | A kind of high-capacity lithium battery electrolyte filling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501011.0A CN110112359A (en) | 2019-06-11 | 2019-06-11 | A kind of high-capacity lithium battery electrolyte filling method |
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| CN110112359A true CN110112359A (en) | 2019-08-09 |
Family
ID=67494534
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| CN201910501011.0A Pending CN110112359A (en) | 2019-06-11 | 2019-06-11 | A kind of high-capacity lithium battery electrolyte filling method |
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Application publication date: 20190809 |