CN106602145A - Apparatus and method for improving infiltration performance of battery with high specific energy density - Google Patents
Apparatus and method for improving infiltration performance of battery with high specific energy density Download PDFInfo
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- CN106602145A CN106602145A CN201611044580.XA CN201611044580A CN106602145A CN 106602145 A CN106602145 A CN 106602145A CN 201611044580 A CN201611044580 A CN 201611044580A CN 106602145 A CN106602145 A CN 106602145A
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- Prior art keywords
- microwave
- electric field
- infrared
- density
- densitybattery
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides an apparatus and method for improving the infiltration performance of a battery with high specific energy density. The apparatus comprises a microwave generation device, an electric field generation device, an infrared generation device and a conveying device used for conveying a to-be-infiltrated electric core, wherein the microwave generation device is electrically connected with a microwave detection device; the electric field generation device is electrically connected with an electric field detection device; the infrared generation device is electrically connected with an infrared detection device; the conveying device is arranged in a microwave field generated by the microwave generation device, an electric field generated by the electric field generation device and in infrared field generated by the infrared generation device; and the microwave generation device, the electric field generation device, the infrared generation device, the microwave detection device, the electric field detection device and the infrared detection device are all electrically connected with a comprehensive control hub. The apparatus and method provided by the invention can improve the infiltration structure of an electrolyte in the electric core of a lithium battery and is capable of effectively improving the electric core infiltration capability of the electrolyte and shortening infiltration time.
Description
Technical field
The invention belongs to field of lithium ion battery, more particularly, to a kind of wetting property for improving high-energy-density densitybattery
Apparatus and method for.
Background technology
Daily life with work in, use of the mankind to communication tools such as 3C is more and more frequent, day use time increasingly
It is long, the endurance of battery is put forward higher requirement.Meanwhile, it is to alleviate environmental pollution and the raising of mankind's environmental consciousness,
Increasingly received by people as trip solution using the electric vehicle of novel energy-saving environment-friendly.In consideration of it, mobile phone
The extensive concern of society is subject to the endurance of electric vehicle etc., cruising time is longer, and product competitiveness is stronger, market
Bigger, exploitation high-energy-density density (250Wh/kg and more than), the battery of long endurance become current Ge Li electricity manufacturers
Focus development project.The basic ideas of exploitation high-energy-density densitybattery are to reduce the content of inert component, are increased with electricity
The content of chemically active material.It is to improve the active material adhesion amount on unit copper aluminium foil most by the way that lithium power plant business receives
(i.e. coating surface density), and high areal density coating can affect wetting property of the electrolyte to coating, wellability difference deteriorate battery
Circulation, the electrical property such as multiplying power.Therefore, developing high efficiency infiltration technique becomes current lithium power plant business exploitation high energy density cells
Key research projects, increasingly paid attention to by industry.
At present the widely used battery infiltration technique of Ge Li power plant business be using quiescence in high temperature condition and prolongation time of repose,
Quiescence in high temperature can increase lithium battery production cost, and extending time of repose can reduce producing line service efficiency, increase indirectly lithium battery into
This, reduces product competitiveness in the market.Even with the means such as quiescence in high temperature and prolongation time of repose, high specific energy still cannot be solved
The infiltration problem of metric density battery system.
The content of the invention
In view of this, it is contemplated that proposing a kind of equipment and the side of wetting property for improving high-energy-density densitybattery
Method, increases the external auxiliary infiltration means such as electric field, infrared, microwave by the infiltration operation after battery core fluid injection, coordinates whirler
Structure improves battery core wetting efficiency, reduces the manufacturing cost of unit product improving battery core effect of impregnation, and the market for improving product is competing
Strive power.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
A kind of equipment of the wetting property for improving high-energy-density densitybattery, including microwave generating apparatus, electric field generation dress
Put and infrared generator, the microwave generating apparatus are electrically connected with microwave detecting device, the electric field generation device electrical connection
There is electric field detector, the infrared generator is electrically connected with infrared detecting device, and the equipment also includes treating for transmission
The transmitting device of infiltration battery core, the transmitting device are arranged on the microwave field of microwave generating apparatus generation, electric field generation device and produce
Inside the infrared field that raw electric field and infrared generator are produced, the microwave generating apparatus, electric field generation device, infrared
Generating apparatus, microwave detecting device, electric field detector, infrared detecting device are electrically connected with Comprehensive Control hinge.
Further, the microwave detecting device shows the frequency of microwave by way of digital display or pointer, by oscillography
Device shows the wavelength of microwave.
Further, the electric field generation device is powered by DC source or alternating current power supply.
Further, the electric field detector shows the size of electric field force, the electric field detection by numeral or pointer
Device carries out automated closed-loop to adjust electric field force size according to the setting value in Comprehensive Control hinge.To guarantee electric field intensity by pre-
If flow process is adjusted.
Further, the infrared detecting device passes through the ultrared waveform of oscilloscope display and wavelength, by counting ripple device
Show ultrared multiplicity.
Further, rotary apparatuss are provided with the microwave field that the microwave generating apparatus are produced dress is adjusted with rotary speed
Put.
Further, the rotary apparatuss are driven by motor or compressed air stream with rotary speed adjusting means.
A kind of method of the wetting property for improving high-energy-density densitybattery, comprises the steps：
Step one：First battery core is positioned in microwave field and is preheated to 45-80 DEG C；
Step 2：Battery core through heat treatment is positioned in electric field and stands 0.5-10min
Step 3：Battery core is positioned in infrared field and stands the infiltration that 1-2h completes battery core.
Further, the battery core in the step one first stands in microwave field and rotates afterwards.
Further, the angle of the rotation is 0-360 °, and the rotation steps time is 1-3h.
Further, the electric field is driven by DC source or alternating current power supply and is produced, the voltage of DC source be 380V or
220V, the voltage of the alternating current power supply is 380V or 220V.
Further, the infrared field middle infrared (Mid-IR) be complex light or wavelength for 0.7um-80um monochromatic light.
Further, the electric field intensity size of the electric field is 1N/C～10MN/C..
Further, in the microwave field, the frequency of microwave is 300MHz～300GHz, and wavelength is 1mm～1000mm.It is micro-
Ripple emission area can be adjusted according to battery core size, and microwave frequency can enter Mobile state adjustment according to battery core thickness, it is ensured that battery core
Internal temperature it is uniform with it is consistent.
Relative to prior art, a kind of equipment of the wetting property for improving high-energy-density densitybattery of the present invention with
Method has the advantage that：
(1) the invention provides one kind improves lithium using electric field, infrared, the microwave combined anglec of rotation and speed adjusting device
The structure of battery battery core electrolyte infiltration, which can be effectively improved wetting capacity of the electrolyte to battery core, shorten infiltrating time.Keep away
Exempt from high-energy-density densitybattery analysis lithium phenomenon and deterioration cycle performance are produced because infiltrating insufficient.Adopt in infiltration operation simultaneously
The present invention structure can reduce infiltrate when ambient temperature, shorten infiltrating time, improve wetting efficiency, reduce battery be fabricated to
This, effectively improves product competitiveness in the market, is conducive to widely applying aborning, anticipates with great production practices
Justice.
(2) present invention improves lithium battery electric core electrolyte wellability using electric field, infrared and microwave three method
Can, battery core is placed on into electric field region first, certain hour is stood in the region, electrolyte is oriented in the presence of electric field force
Forced convertion is transported, and is strengthened transmission capacity of the electrolyte in battery core pole piece longitudinal direction, is improved wetting capacity of the electrolyte to battery core.Jing
The communicated band of battery core after electric field action certain hour is transferred to infrared field, stands certain hour, electrolyte molecule in infrared field
Group carry out in the presence of infrared ray must microseism swing motion, strengthen electrolyte molecule to battery core pole piece active material granule
The infiltration on surface and effect of impregnation.Before electric field is acted on to battery core with infrared field, battery core is placed into certain in microwave field first
Time, battery core is carried out in the presence of microwave must microwave combustion method, strengthen the temperature of electrolyte region, improve electricity
Solution exercise intensity of the liquid in function field.
(3) present invention is additionally provided with angle rotating device and speed adjusting device in microwave field, and battery core is made in microwave field
With while, the motion of three dimensions can be carried out in the presence of angle rotating device and speed adjusting device respectively, electrolysis is made
Liquid is infiltrated inside battery core in the presence of gravity with centripetal force, strengthens physics transport capability of the electrolyte from surrounding toward center.
Description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is that the principle of the equipment of the wetting property for improving high-energy-density densitybattery described in the embodiment of the present invention is illustrated
Figure；
Fig. 2 is the structural representation of the equipment of the wetting property for improving high-energy-density densitybattery described in the embodiment of the present invention
Figure.
Description of reference numerals：
1- microwave generating apparatus；2- electric field generation devices；3- infrared generators；4- microwave detecting devices；5- electric fields are examined
Survey device；6- infrared detecting devices；7- transmitting devices；8- angle rotating devices；9- speed adjusting devices.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment and the feature in embodiment in the present invention can phase
Mutually combine.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Show that the device or element of indication there must be specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
Embodiment 1
As depicted in figs. 1 and 2, a kind of equipment of the wetting property for improving high-energy-density densitybattery, including microwave occurs
Device 1, electric field generation device 2 and infrared generator 3, microwave generating apparatus 1 are electrically connected with microwave detecting device 4, and electric field is sent out
Generating apparatus 2 are electrically connected with electric field detector 5, and infrared generator 3 is electrically connected with infrared detecting device 6；Microwave detecting device 4
The frequency of microwave is shown by way of digital display or pointer, by the wavelength of oscilloscope display microwave.Electric field generation device 2 is by straight
Stream power supply or alternating current power supply drive.Electric field detector 5 shows the size of electric field force, electric field detector by numeral or pointer
5 carry out automated closed-loop to adjust electric field force size according to the setting value in Comprehensive Control hinge.To guarantee electric field intensity by default
Flow process is adjusted.Infrared detecting device 6 passes through the ultrared waveform of oscilloscope display and wavelength, shows infrared by counting ripple device
The multiplicity of line.
Equipment also includes that for transmitting the conveyer belt 7 of battery core to be infiltrated conveyer belt 7 is arranged on microwave generating apparatus 1 and produces
Microwave field, electric field generation device 2 produce electric field and infrared generator 3 produce infrared field inside, 7 surface of conveyer belt
It is provided with the rotary apparatuss 8 and rotary speed adjusting means 9, rotary apparatuss 8 and rotary speed for battery core 10 is rotated
Adjusting means 9 is driven by cylinder or compressed air stream.
Microwave generating apparatus 1, electric field generation device 2, infrared generator 3, microwave detecting device 4, electric field detector
5th, infrared detecting device 6 and conveyer belt 7 are electrically connected with Comprehensive Control hinge and fetch realization and automatically control.
The method for improving the wetting property of high-energy-density densitybattery using the said equipment, comprises the steps：
Step one：First battery core is positioned in microwave field and is preheated to 45 DEG C, while battery core is first stood in microwave field revolving afterwards
Turn, the angle of rotation is 180 °, the interval time of rotation is 1h.In microwave field, the frequency of microwave is 300MHz, and wavelength is
500mm。
Step 2：Battery core through heat treatment is positioned in electric field and stands 30s, electric field intensity is 100N/C.Electric field by
380v DC sources drive and produce.
Step 3：Battery core is positioned in infrared field and stands 1h, the infrared field middle infrared (Mid-IR) is the monochrome that wavelength is 10um
Light.
Infiltration is completed after the battery core after step one to step 3 process is stood 24h at a temperature of 25 DEG C.
Embodiment 2
Improve the device structure of wetting property of high-energy-density densitybattery with embodiment 1.
The method for improving the wetting property of high-energy-density densitybattery using the said equipment, comprises the steps：
Step one：First battery core is positioned in microwave field and is preheated to 60 DEG C, while battery core is first stood in microwave field revolving afterwards
Turn, the angle of rotation is 180 °, the interval time of rotation is 2h.In microwave field, the frequency of microwave is 1GHz, and wavelength is 300mm.
Step 2：Battery core through heat treatment is positioned in electric field and stands 8min, electric field intensity is 500N/C, electric field by
220v alternating current power supplys drive and produce.
Step 3：Battery core is positioned in infrared field and stands 1.5h, the infrared field middle infrared (Mid-IR) is the list that wavelength is 50um
Coloured light.
Infiltration is completed after the battery core after step one to step 3 process is stood 12h at a temperature of 25 DEG C.
Comparative example 1
The battery core for filling electrolyte is carried out into conventional infiltration：Temperature is 45 DEG C, and time of repose is 24h.
Comparative example 2
The battery core for filling electrolyte is carried out into conventional infiltration：Temperature is 45 DEG C, and time of repose is 48h.
Comparative example 3
The battery core for filling electrolyte is positioned over the temperature of battery core to be heated in the microwave field of microwave generating apparatus generation and be
After 45 DEG C, under conditions of temperature is for 25 DEG C, time of repose is 24h.
Comparative example 4
By the battery core for filling electrolyte be positioned over infrared generator generation infrared field (the infrared field middle infrared (Mid-IR) be ripple
The monochromatic light of a length of 10um) in stand 1h after, temperature be 25 DEG C under conditions of time of repose be 24h.
Comparative example 5
By the battery core for filling electrolyte be positioned over electric field generation device generation electric field (electric field is driven by 220v alternating current power supplys
Produce) in stand 8min after, electric field intensity is 1000N/C, temperature be 25 DEG C under conditions of time of repose be 24h.
Battery core after the infiltration that embodiment 1-2 and comparative example 1-5 are obtained detects internal resistance by battery core internal resistance instrument, obtains
Testing result see the table below：
| Project | Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 |
| Battery core internal resistance (m Ω) | 1.12 | 0.86 | 1.3 | 1.12 | 1.09 | 1.1 | 1.12 |
As can be seen from the above table data, the battery core internal resistance for processing through mechanism of the present invention and method is substantially dropped
It is low, while being effectively improved wetting capacity of the electrolyte to battery core, reduce infiltrating time.High-energy-density densitybattery is avoided because of infiltration
It is insufficient and produce analysis lithium phenomenon and deteriorate cycle performance.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of equipment of the wetting property for improving high-energy-density densitybattery, it is characterised in that：The equipment includes that microwave is sent out
Generating apparatus, electric field generation device and infrared generator, the microwave generating apparatus are electrically connected with microwave detecting device, the electricity
Field generating meanss are electrically connected with electric field detector, and the infrared generator is electrically connected with infrared detecting device, the equipment
Also include that, for transmitting the transmitting device of battery core to be infiltrated, the transmitting device is arranged on the microwave of microwave generating apparatus generation
Inside the infrared field that the electric field and infrared generator that field, electric field generation device are produced is produced, the microwave generating apparatus, electricity
Generating meanss, infrared generator, microwave detecting device, electric field detector, infrared detecting device with Comprehensive Control pivot
Knob is electrically connected.
2. the equipment of the wetting property for improving high-energy-density densitybattery according to claim 1, it is characterised in that：It is described
Microwave detecting device shows the frequency of microwave by way of digital display or pointer, by the wavelength of oscilloscope display microwave.
3. the equipment of the wetting property for improving high-energy-density densitybattery according to claim 1, it is characterised in that：It is described
Electric field generation device is powered by DC source or alternating current power supply, and the electric field detector shows electric field force by numeral or pointer
Size, it is big to adjust electric field force that the electric field detector carries out automated closed-loop according to the setting value in Comprehensive Control hinge
It is little.
4. the equipment of the wetting property for improving high-energy-density densitybattery according to claim 1, it is characterised in that：It is described
Infrared detecting device is provided with oscillograph and meter ripple device, by the ultrared waveform of oscilloscope display and wavelength, by counting ripple device
Show ultrared multiplicity.
5. the equipment of the wetting property for improving high-energy-density densitybattery according to claim 1, it is characterised in that：It is described
Rotary apparatuss and rotary speed adjusting means are provided with the microwave field that microwave generating apparatus are produced.
6. the equipment of the wetting property for improving high-energy-density densitybattery according to claim 5, it is characterised in that：It is described
Rotary apparatuss are driven by motor or compressed air stream with rotary speed adjusting means.
7. a kind of method of the wetting property for improving high-energy-density densitybattery, it is characterised in that：Methods described includes following step
Suddenly：
Step one：First battery core is positioned in microwave field and is preheated to 45-80 DEG C；
Step 2：Battery core through heat treatment is positioned in electric field and stands 0.5-10min；
Step 3：Battery core is positioned in infrared field and stands the infiltration that 1-2h completes battery core.
8. the method for the wetting property for improving high-energy-density densitybattery according to claim 7, it is characterised in that：It is described
Battery core in step one first stands in microwave field and rotates afterwards.
9. the method for the wetting property for improving high-energy-density densitybattery according to claim 8, it is characterised in that：It is described
The angle of rotation is 0-360 °, and the rotation steps time is 1-3h.
10. the method for the wetting property for improving high-energy-density densitybattery according to claim 7, it is characterised in that：Institute
State electric field and generation is driven by DC source or alternating current power supply, the voltage of DC source is 380V or 220V, the alternating current power supply
Voltage is 380V or 220V；The infrared field middle infrared (Mid-IR) is complex light or wavelength for the monochromatic light of 0.7um-80um；It is described micro-
In wave field, the frequency of microwave is 300MHz～300GHz, and wavelength is 1mm～1000mm；The electric field intensity size of the electric field is
1N/C～10MN/C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044580.XA CN106602145A (en) | 2016-11-24 | 2016-11-24 | Apparatus and method for improving infiltration performance of battery with high specific energy density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611044580.XA CN106602145A (en) | 2016-11-24 | 2016-11-24 | Apparatus and method for improving infiltration performance of battery with high specific energy density |
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| Publication Number | Publication Date |
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| CN106602145A true CN106602145A (en) | 2017-04-26 |
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ID=58593038
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110896153A (en) * | 2018-09-12 | 2020-03-20 | 深圳格林德能源有限公司 | Method for improving electrolyte infiltration of soft package lithium ion battery |
-
2016
- 2016-11-24 CN CN201611044580.XA patent/CN106602145A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110896153A (en) * | 2018-09-12 | 2020-03-20 | 深圳格林德能源有限公司 | Method for improving electrolyte infiltration of soft package lithium ion battery |
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