CN107546419A - Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection - Google Patents
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection Download PDFInfo
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- CN107546419A CN107546419A CN201710652568.5A CN201710652568A CN107546419A CN 107546419 A CN107546419 A CN 107546419A CN 201710652568 A CN201710652568 A CN 201710652568A CN 107546419 A CN107546419 A CN 107546419A
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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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- 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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Abstract
The invention provides method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, comprise the following steps：S1：Battery core vertical standing certain time after fluid injection is sealed in advance；S2：By battery core is vertical be fixed on two clamping plates among, the pressure that clamping plate is put in battery core is 0.06~0.09MPa, continue stand certain time, during which battery core is handled using intermittent ultrasonic waves；S3：After step S2 standings terminate, battery core surface pressure is adjusted to 0.15~0.18MPa, carries out high temperature preliminary filling；S4：Preliminary filling, which finishes, reduces battery core surface pressure to 0.05~0.08MPa, quiescence in high temperature certain time.Method middle clamp plate is shelved after Soft Roll lamination lithium-ion-power cell fluid injection of the present invention to act on core bag main body that electrolyte can be made to be distributed inside battery core is relatively uniform, electrolyte can enter inside core bag from different positions, using vertical standing, efficiently, it is convenient, battery core mass production can be realized.
Description
Technical field
The invention belongs to field of lithium ion battery, more particularly, to being put after a kind of Soft Roll lamination lithium-ion-power cell fluid injection
Put method.
Background technology
The chemical property of lithium ion battery and its manufacturing process are closely related, and the product quality of lithium ion battery is very big
The technology controlling and process of its manufacturing process is depended in degree, core bag or the infiltration of pole group are one of them vital rings after fluid injection
Section.Infiltrate insufficient charge/discharge capacity that will influence to play, increase battery core internal driving, go out current situation when even resulting in quick charge
Lithium is analysed in portion, has a strong impact on battery core cycle life and security performance.
The advantages such as big energy density, good cycle and security performance height are had based on soft package lithium ion power battery,
It is preferred progressively to turn into automobile using dynamic lithium battery.However, with the fast development in new-energy automobile field, vehicle enterprise is to power
Battery energy density proposes higher requirement.In order to further lift battery core energy density, high-pressure solid, thick electrode are increasingly becoming
The trend of Soft Roll electrokinetic cell development, the exploitation of electrode rapidly and efficiently imbibition technique are more crucial.
It is well known that after battery core fluid injection infiltration degree critical limiting factor include pole piece porosity, material particle size,
Alternate contact angle of solid-liquid two etc..At present, to reach good effect of impregnation, major Soft Roll electrokinetic cell before ensuring battery core preliminary filling
Producer is generally to extend time of repose, rise dwell temperature etc. after fluid injection by the way of, and this adds electricity to a certain extent
The production cost of core.Meanwhile often left during electrolyte soaks barrier film and pole piece on pole piece containing a little gas
The congested areas of body, cause electrolyte to be difficult to penetrate into, can not be produced a desired effect only by way of extending time of repose.This
Outside, in Soft Roll power battery core production process, when using the vertical standing for being easy to production flow, a large amount of electrolyte concentrate on core
Wrap one end, it is impossible to effectively contacted with pole piece barrier film, be only difficult to quickly transporting to electrolyte into each of pole piece by capillary force
Individual position, it is bad to ultimately result in battery core effect of impregnation.
The content of the invention
In view of this, the present invention is directed to propose shelving method after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, wherein
Clamping plate acts on core bag main body, and that electrolyte can be made to be distributed inside battery core is relatively uniform, and electrolyte can enter from different positions
Inside core bag, it is aided with ultrasonic wave and promotes pole piece imbibition, electrolyte accumulates in core bag during solving original vertical circulation, standing
Bottom departs from airbag side pole piece barrier film, and electrolyte is gradually only transferred into whole pole piece by bottom by capillary force and caused
The problem of time-consuming, effect difference.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
Battery core vertical standing certain time afterwards；
S2：By battery core is vertical be fixed on two clamping plates among, pressure that clamping plate is put in battery core for 0.06~
0.09MPa, continue to stand certain time；
S3：After step S2 standings terminate, battery core surface pressure is adjusted to 0.15~0.18MPa, carries out high temperature preliminary filling；
S4：Preliminary filling, which finishes, reduces battery core surface pressure to 0.05~0.08MPa, quiescence in high temperature certain time.
Further, the battery core being fixed between clamping plate is ultrasonically treated during being stood in step S2.
Further, the power of the ultrasonic unit used is ultrasonically treated between 100~120W, and the frequency of ultrasonic wave is 20
~25KHz.
Further, ultrasonic processing method is：Start a ultrasound procedure every 0.5-1.5 hours, continue 3 every time~
5min。
Further, step S3 high temperatures preliminary filling temperature is 40-50 DEG C；Step S4 high temperatures dwell temperature is 40-50 DEG C.
Further, step S3 high temperatures preliminary filling is identical with step S4 high temperature dwell temperatures.
Further, vertical time of repose is 10-15h in step S1.
Further, it is 10-15h to continue time of repose in step S2.
Further, step S4 high temperatures time of repose is 2~4 days.
Further, the cathode active material in lithium ion battery is LiFePO4, LiMn2O2, LiNixCoyMnzO2,
0<x、y、z<More than one or both of l, x+y+z=1 it is mixed to form by different proportion.
Further, the negative electrode active material material in lithium ion battery is graphite, MCMB, hard carbon, soft carbon
One or both of more than be mixed to form by different proportion.
Further, the barrier film in lithium ion battery is polyethylene, polypropylene individual layer, multilayer and its one side, dual coating
The barrier film of ceramics.
Further, the shell of lithium ion battery is aluminum plastic film.
Relative to prior art, shelved after Soft Roll lamination lithium-ion-power cell fluid injection of the present invention method have with
Lower advantage：
(1) battery core is shelved in method after Soft Roll lamination lithium-ion-power cell fluid injection of the present invention using vertical quiet
Put, it is efficient, convenient, battery core mass production can be realized, clamping plate uniformly applies pressure to battery core main body in addition, makes in core bag
Liquid distribution is relatively uniform, and whole pole group is surrounded and progressively penetrated into inside core bag by all directions, Neng Gouxian by electrolyte completely
Work shortens time of repose after fluid injection, reduces production cost, can also reduce pole piece and locally soak the risk dropped off for a long time；
(2) stage is stood, ultrasonic wave disturbance is carried out to the battery core being fixed between two clamping plates, on the one hand can shorten liquid
The time is penetrated into, is on the other hand advantageous to break the gas congested areas in pole piece, is provided for electrolyte well between material
Condition preferably, the fully purpose of wetting core bag was finally reached in the short time.
Brief description of the drawings
Fig. 1 is the structural representation of Soft Roll lamination lithium-ion-power cell before fluid injection；
Fig. 2 is the structural representation of the vertical standing of battery core of the present invention；
Fig. 3 is Fig. 2 right view；
Fig. 4 be the Soft Roll lamination lithium-ion-power cell fluid injection of embodiment 2 after shelve process chart；
Fig. 5 be comparative example Soft Roll lamination lithium-ion-power cell fluid injection after shelve process chart；
Fig. 6 is embodiment 1, the 45 DEG C of@1C/1C discharge and recharges of embodiment 2 and comparative example Soft Roll lamination lithium-ion-power cell follow
Ring performance curve.
Embodiment
In addition to being defined, technical term used has universal with those skilled in the art of the invention in following examples
The identical meanings of understanding.Test reagent used, is routine biochemistry reagent unless otherwise specified in following examples；It is described
Experimental method, it is conventional method unless otherwise specified.
Infiltration：After liquid lithium ionic cell fluid injection, electrolyte fully soaks the process of positive/negative plate and barrier film；
Vertical standing：Battery core body upright, airbag are shelved upward.
The present invention is described in detail with reference to embodiment and accompanying drawing.
Embodiment 1
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiNi0.5Co0.2Mn0.3O2, negative electrode active material material is graphite, respectively in plus plate current-collecting body/negative current collector after homogenate
Upper carry out coating operations, roll to obtain positive and negative plate, then positive/negative plate are dried, cross cutting, by positive plate, barrier film, bear
Lithium ion battery cell is made by the mode of lamination in pole piece, and its septation is two-sided painting ceramics polyethylene diagrams, and battery core is filled
Enter in aluminum plastic membrane shell and dried, electrolyte is injected into core bag under the conditions of -95kPa to the battery core after drying and noted
Liquid, battery core is sealed in advance after 12min vacuum standing, the battery core finished is sealed in advance and uses Soft Roll lamination lithium-ion-power cell
Shelved after fluid injection method processing, then battery core is taken out from clamping plate, carry out successively pumping shaping, secondary sealing, normal temperature aging,
Partial volume stepping etc. operates, and ultimately forms lithium ion battery.
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
The vertical standing 12h of 38Ah-3.7V battery cores afterwards；S2：By battery core is vertical be fixed on two clamping plates among, clamping plate is put in battery core
Pressure be 0.08MPa, continue stand 12h；S3：After step S2 standings terminate, battery core surface pressure is adjusted to 0.16MPa, put
High temperature preliminary filling is carried out under 45 DEG C of environment；S4：Preliminary filling, which finishes, reduces battery core surface pressure to 0.06MPa, and 3 are stood in 45 DEG C of conditions
My god.This example middle clamp plate is thickness 8mm stainless steel plate, and step S1, S2 dwell temperatures are 25 ± 3 DEG C.
Embodiment 2
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiNi0.5Co0.2Mn0.3O2, negative electrode active material material is graphite, respectively in plus plate current-collecting body/negative current collector after homogenate
Upper carry out coating operations, roll to obtain positive and negative plate, then positive/negative plate are dried, cross cutting, by positive plate, barrier film, bear
Lithium ion battery cell is made by the mode of lamination in pole piece, and its septation is two-sided painting ceramics polyethylene diagrams, and battery core is filled
Enter in aluminum plastic membrane shell and dried, electrolyte is injected into core bag under the conditions of -95kPa to the battery core after drying and noted
Liquid, battery core is sealed in advance after 12min vacuum standing, the battery core finished is sealed in advance and uses Soft Roll lamination lithium-ion-power cell
Shelved after fluid injection method processing, then battery core is taken out from clamping plate, carry out successively pumping shaping, secondary sealing, normal temperature aging,
Partial volume stepping etc. operates, and ultimately forms lithium ion battery.
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
The vertical standing 12h of 38Ah-3.7V battery cores afterwards；S2：By battery core is vertical be fixed on two clamping plates among, clamping plate is put in battery core
Pressure be 0.08MPa, continue stand 12h；The standing stage is ultrasonically treated using Vltrasonic device to battery core, ultrasonic power
It is set as 110W, frequency 20KHz, carries out a ultrasound procedure per hour, every time lasting 5min；S3：Step S2, which is stood, to be terminated
Afterwards, battery core surface pressure is adjusted to 0.16MPa, is placed in progress high temperature preliminary filling under 45 DEG C of environment；S4：Preliminary filling, which finishes, reduces battery core table
To 0.06MPa, 3 days are stood in 45 DEG C of conditions by force for face pressure.This example middle clamp plate is thickness 8mm stainless steel plate, and step S1, S2 is quiet
It is 25 ± 3 DEG C to put temperature.Vltrasonic device is liquid transmissive type Vltrasonic device.
Embodiment 3
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiNi0.33Co0.33Mn0.34O2, negative electrode active material material is graphite and hard carbon in mass ratio 1:1 ratio is mixed to get, even
Carry out coating operations after slurry on plus plate current-collecting body/negative current collector respectively, roll to obtain positive and negative plate, then to both positive and negative polarity
Piece is dried, cross cutting, positive plate, barrier film, negative plate is made into lithium ion battery cell by the mode of lamination, its septation
Ceramic polyethylene diagrams are applied for one side, battery core is loaded in aluminum plastic membrane shell and dried, to the battery core after drying in -95kPa
Under the conditions of inject electrolyte into core bag and carry out fluid injection, battery core sealed in advance after 11min vacuum standing, seals finish in advance
Battery core shelves method processing after using Soft Roll lamination lithium-ion-power cell fluid injection, then takes out battery core from clamping plate, successively
The operation such as pumping shaping, secondary sealing, normal temperature aging, partial volume stepping is carried out, ultimately forms lithium ion battery.
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
The vertical standing 11h of battery core afterwards；S2：By battery core is vertical be fixed on two clamping plates among, the pressure that clamping plate is put in battery core is
0.07MPa, continue to stand 11h；S3：After step S2 standings terminate, battery core surface pressure is adjusted to 0.15MPa, is placed in 41 DEG C of rings
High temperature preliminary filling is carried out under border；S4：Preliminary filling, which finishes, reduces battery core surface pressure to 0.05MPa, and 2 days are stood in 41 DEG C of conditions.This reality
The stainless steel plate that example middle clamp plate is thickness 8mm, step S1, S2 dwell temperatures are 25 DEG C.
Embodiment 4
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiNi0.33Co0.33Mn0.34O2, negative electrode active material material is graphite and hard carbon in mass ratio 1:1 ratio is mixed to get, even
Carry out coating operations after slurry on plus plate current-collecting body/negative current collector respectively, roll to obtain positive and negative plate, then to both positive and negative polarity
Piece is dried, cross cutting, positive plate, barrier film, negative plate is made into lithium ion battery cell by the mode of lamination, its septation
Ceramic polyethylene diagrams are applied for one side, battery core is loaded in aluminum plastic membrane shell and dried, to the battery core after drying in -95kPa
Under the conditions of inject electrolyte into core bag and carry out fluid injection, battery core sealed in advance after 11min vacuum standing, seals finish in advance
Battery core shelves method processing after using Soft Roll lamination lithium-ion-power cell fluid injection, then takes out battery core from clamping plate, successively
The operation such as pumping shaping, secondary sealing, normal temperature aging, partial volume stepping is carried out, ultimately forms lithium ion battery.
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
The vertical standing 11h of battery core afterwards；S2：By battery core is vertical be fixed on two clamping plates among, the pressure that clamping plate is put in battery core is
0.07MPa, continue to stand 11h, the standing stage is ultrasonically treated battery core using Vltrasonic device, and ultrasonic power is set as
100W, frequency 20KHz, a ultrasound procedure is carried out per 0.5h, every time lasting 3min；S3：After step S2 standings terminate, by electricity
Wicking surface pressure is adjusted to 0.15MPa, is placed in progress high temperature preliminary filling under 41 DEG C of environment；S4：Preliminary filling, which finishes, reduces battery core surface pressure
To 0.05MPa, 2 days are stood in 41 DEG C of conditions.This example middle clamp plate be thickness 8mm stainless steel plate, step S1, S2 dwell temperatures
It is 25 DEG C.Vltrasonic device is liquid transmissive type Vltrasonic device.
Embodiment 5
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiFePO4, negative electrode active material material is MCMB, respectively in plus plate current-collecting body/negative current collector after homogenate
Upper carry out coating operations, roll to obtain positive and negative plate, then positive/negative plate are dried, cross cutting, by positive plate, barrier film, bear
Lithium ion battery cell is made by the mode of lamination in pole piece, and its septation is that one side applies ceramic polypropylene diaphragm, and battery core is filled
Enter in aluminum plastic membrane shell and dried, electrolyte is injected into core bag under the conditions of -95kPa to the battery core after drying and noted
Liquid, battery core is sealed in advance after 15min vacuum standing, the battery core finished is sealed in advance and uses Soft Roll lamination lithium-ion-power cell
Shelved after fluid injection method processing, then battery core is taken out from clamping plate, carry out successively pumping shaping, secondary sealing, normal temperature aging,
Partial volume stepping etc. operates, and ultimately forms lithium ion battery.
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
The vertical standing 15h of battery core afterwards；S2：By battery core is vertical be fixed on two clamping plates among, the pressure that clamping plate is put in battery core is
0.09MPa, continue to stand 15h；S3：After step S2 standings terminate, battery core surface pressure is adjusted to 0.17MPa, is placed in 42 DEG C of rings
High temperature preliminary filling is carried out under border；S4：Preliminary filling, which finishes, reduces battery core surface pressure to 0.08MPa, and 4 days are stood in 42 DEG C of conditions.This reality
The stainless steel plate that example middle clamp plate is thickness 8mm, step S1, S2 dwell temperatures are 27 DEG C.
Embodiment 6
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiMn2O2, negative electrode active material material is soft carbon, is coated respectively on plus plate current-collecting body/negative current collector after homogenate
Operation, roll to obtain positive and negative plate, then positive/negative plate is dried, be die cut, by positive plate, barrier film, negative plate by folded
Lithium ion battery cell is made in the mode of piece, and its septation is two-sided painting ceramics polypropylene diaphragm, and battery core is loaded outside aluminum plastic film
Dried in shell, injecting electrolyte into core bag under the conditions of -95kPa to the battery core after drying carries out fluid injection, true through 15min
Sky is sealed in advance after standing to battery core, is sealed the battery core finished in advance and is used the side of shelving after Soft Roll lamination lithium-ion-power cell fluid injection
Method processing, then takes out battery core from clamping plate, carries out the behaviour such as pumping shaping, secondary sealing, normal temperature aging, partial volume stepping successively
Make, ultimately form lithium ion battery.
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, is comprised the following steps：S1：Fluid injection is sealed in advance
The vertical standing 15h of battery core afterwards；S2：By battery core is vertical be fixed on two clamping plates among, the pressure that clamping plate is put in battery core is
0.09MPa, continue to stand 15h, the standing stage is ultrasonically treated battery core using Vltrasonic device, and ultrasonic power is set as
120W, frequency 25KHz, a ultrasound procedure is carried out per 1.5h, every time lasting 4min；S3：After step S2 standings terminate, by electricity
Wicking surface pressure is adjusted to 0.17MPa, is placed in progress high temperature preliminary filling under 42 DEG C of environment；S4：Preliminary filling, which finishes, reduces battery core surface pressure
To 0.08MPa, 4 days are stood in 42 DEG C of conditions.This example middle clamp plate be thickness 8mm stainless steel plate, step S1, S2 dwell temperatures
It is 27 DEG C.Vltrasonic device is liquid transmissive type Vltrasonic device.
Comparative example
Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, the manufacturing process of wherein lithium ion battery includes
Following steps：The anode and cathode slurry of lithium ion battery is homogenized respectively, positive electrode active material material used in homogenization process
Expect for LiNi0.5Co0.2Mn0.3O2, negative electrode active material material is graphite, respectively in plus plate current-collecting body/negative current collector after homogenate
Upper carry out coating operations, roll to obtain positive and negative plate, then positive/negative plate are dried, cross cutting, by positive plate, barrier film, bear
Lithium ion battery cell is made by the mode of lamination in pole piece, and its septation is two-sided painting ceramics polyethylene diagrams, and battery core is filled
Enter in aluminum plastic membrane shell and dried, electrolyte is injected into core bag under the conditions of -95kPa to the battery core after drying and noted
Liquid, through 12min vacuum standing after battery core is sealed in advance, seal the battery core finished in advance and carry out shelving processing, then by battery core from
Taken out in clamping plate, carry out the operation such as pumping shaping, secondary sealing, normal temperature aging, partial volume stepping successively, ultimately form lithium-ion electric
Pond.
The battery core finished is sealed in advance carry out shelving processing method be：First use is vertical, stands 48h without clamping plate mode；45 DEG C of height
Warm preliminary filling clamping plate pressure 0.16MPa；The ageing of 45 DEG C of high temperature, battery core using it is vertical, 3 days are stood without clamping plate mode.
45 DEG C of embodiment 1, embodiment 2 and comparative example Soft Roll lamination lithium-ion-power cell@1C/1C charge-discharge performances
Curve is as shown in Figure 6.
The internal resistance for shelving battery core in embodiment 1, embodiment 2 and comparative example after fluid injection is contrasted, it is as a result as follows：
| Scheme | Internal resistance/m Ω |
| Comparative example | 0.85 |
| Embodiment 1 | 0.80 |
| Embodiment 2 | 0.72 |
As seen from the above table, embodiment 2 shelved after fluid injection of the present invention method processing after battery core internal resistance be significantly less than remaining two
Individual scheme；For comparative example, core bag effect of impregnation had both been improved, (Fig. 4~5) has been shelved the time after shortening fluid injection again, helps
In the raising of production efficiency.
In addition, good effect, embodiment 3 are also embodied when the method for the invention is applied in embodiment 3~6
And the lithium-ion-power cell internal resistance of Soft Roll lamination is respectively less than 0.80m Ω in embodiment 5, the embodiment 4 and reality of supersound process are used
Apply the internal resistance of example 6 and be respectively less than 0.75m Ω；Embodiment 3~6 Soft Roll lamination lithium-ion-power cell, 45 DEG C of@1C/1C charge and discharge cycles
400 capability retentions are more than 95%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, for different electrodes,
Relevant parameter in this invention might have change, and one of ordinary skill in the art is all in this hair under the enlightenment of the present invention
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc., protection scope of the present invention should be included in
Within.
Claims (9)
1. shelve method after a kind of Soft Roll lamination lithium-ion-power cell fluid injection, it is characterised in that：Comprise the following steps：S1：Will
Battery core vertical standing certain time after the pre- sealing of fluid injection；
S2：By battery core is vertical be fixed on two clamping plates among, the pressure that clamping plate is put in battery core is 0.06~0.09MPa, after
It is continuous to stand certain time；
S3：After step S2 standings terminate, battery core surface pressure is adjusted to 0.15~0.18MPa, carries out high temperature preliminary filling；
S4：Preliminary filling, which finishes, reduces battery core surface pressure to 0.05~0.08MPa, quiescence in high temperature certain time.
2. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 1, it is characterised in that：Step
The battery core being fixed between clamping plate is ultrasonically treated during being stood in S2.
3. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 2, it is characterised in that：Ultrasound
The power of the ultrasonic unit used is handled between 100~120W, the frequency of ultrasonic wave is 20~25KHz.
4. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 3, it is characterised in that：Ultrasound
Processing method is：Start a ultrasound procedure every 0.5-1.5 hours, continue 3~5min every time.
5. method is shelved after the Soft Roll lamination lithium-ion-power cell fluid injection according to claim any one of 1-4, its feature
It is：Step S3 high temperature preliminary fillings temperature is 40-50 DEG C；Step S4 high temperatures dwell temperature is 40-50 DEG C.
6. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 5, it is characterised in that：Step
S3 high temperatures preliminary filling is identical with step S4 high temperature dwell temperatures.
7. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 5, it is characterised in that：Step
Vertical time of repose is 10-15h in S1.
8. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 7, it is characterised in that：Step
It is 10-15h to continue time of repose in S2.
9. shelve method after Soft Roll lamination lithium-ion-power cell fluid injection according to claim 8, it is characterised in that：Step
S4 high temperatures time of repose is 2~4 days.
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| CN108306062A (en) * | 2018-01-31 | 2018-07-20 | 北京国能电池科技股份有限公司 | Improve chemical synthesizing method, Battery formation fixture and application and the Soft Roll power battery of Soft Roll power battery cycle life |
| CN108598357A (en) * | 2018-05-09 | 2018-09-28 | 江苏海四达电源股份有限公司 | Electrolyte filling method for lithium ion battery |
| CN110571476A (en) * | 2019-09-18 | 2019-12-13 | 河南锂动电源有限公司 | preparation method of nickel cobalt lithium manganate laminated soft-package battery and battery |
| CN111403819A (en) * | 2020-05-06 | 2020-07-10 | 湖北亿纬动力有限公司 | Method for improving electrolyte infiltration of ternary battery and battery obtained by method |
| CN112366356A (en) * | 2020-07-29 | 2021-02-12 | 万向一二三股份公司 | Method for improving battery cell infiltration effect and lithium ion battery cell |
| CN112736287A (en) * | 2020-12-25 | 2021-04-30 | 惠州亿纬创能电池有限公司 | Electrode wetting method, electrode and battery |
| CN113948776A (en) * | 2021-07-27 | 2022-01-18 | 宁波维科电池有限公司 | Method for improving battery cell infiltration efficiency |
| CN117832577A (en) * | 2023-12-29 | 2024-04-05 | 海希储能科技(山东)有限公司 | Manufacturing method of square aluminum shell battery |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378372A (en) * | 2012-04-28 | 2013-10-30 | 深圳拓邦股份有限公司 | Method for placing and aging lithium ion battery |
| CN103721972A (en) * | 2013-12-20 | 2014-04-16 | 天津力神电池股份有限公司 | Method for wetting polymer lithium ion batteries |
| CN104393348A (en) * | 2014-10-29 | 2015-03-04 | 山东神工海特电子科技有限公司 | Preparation method of laminated flexible-package lithium-ion battery |
| CN104485482A (en) * | 2014-12-31 | 2015-04-01 | 东莞市安德丰电池有限公司 | Manufacturing method for high-voltage soft-package lithium-ion battery |
| CN104577211A (en) * | 2014-12-30 | 2015-04-29 | 东莞市西特新能源科技有限公司 | Battery preparation method for improving cycle performance of lithium ion battery |
| CN105428721A (en) * | 2015-11-04 | 2016-03-23 | 中航锂电（洛阳）有限公司 | Injected solution accelerated absorption method for soft package lithium ion battery and soft package lithium ion battery |
| CN107464955A (en) * | 2016-06-02 | 2017-12-12 | 万向二三股份公司 | A kind of electrolyte wetting method of soft bag lithium ionic cell |
-
2017
- 2017-08-02 CN CN201710652568.5A patent/CN107546419A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378372A (en) * | 2012-04-28 | 2013-10-30 | 深圳拓邦股份有限公司 | Method for placing and aging lithium ion battery |
| CN103721972A (en) * | 2013-12-20 | 2014-04-16 | 天津力神电池股份有限公司 | Method for wetting polymer lithium ion batteries |
| CN104393348A (en) * | 2014-10-29 | 2015-03-04 | 山东神工海特电子科技有限公司 | Preparation method of laminated flexible-package lithium-ion battery |
| CN104577211A (en) * | 2014-12-30 | 2015-04-29 | 东莞市西特新能源科技有限公司 | Battery preparation method for improving cycle performance of lithium ion battery |
| CN104485482A (en) * | 2014-12-31 | 2015-04-01 | 东莞市安德丰电池有限公司 | Manufacturing method for high-voltage soft-package lithium-ion battery |
| CN105428721A (en) * | 2015-11-04 | 2016-03-23 | 中航锂电（洛阳）有限公司 | Injected solution accelerated absorption method for soft package lithium ion battery and soft package lithium ion battery |
| CN107464955A (en) * | 2016-06-02 | 2017-12-12 | 万向二三股份公司 | A kind of electrolyte wetting method of soft bag lithium ionic cell |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306062A (en) * | 2018-01-31 | 2018-07-20 | 北京国能电池科技股份有限公司 | Improve chemical synthesizing method, Battery formation fixture and application and the Soft Roll power battery of Soft Roll power battery cycle life |
| CN108598357A (en) * | 2018-05-09 | 2018-09-28 | 江苏海四达电源股份有限公司 | Electrolyte filling method for lithium ion battery |
| CN110571476A (en) * | 2019-09-18 | 2019-12-13 | 河南锂动电源有限公司 | preparation method of nickel cobalt lithium manganate laminated soft-package battery and battery |
| CN110571476B (en) * | 2019-09-18 | 2022-07-29 | 河南锂动电源有限公司 | Preparation method of nickel cobalt lithium manganate laminated soft-package battery and battery |
| CN111403819A (en) * | 2020-05-06 | 2020-07-10 | 湖北亿纬动力有限公司 | Method for improving electrolyte infiltration of ternary battery and battery obtained by method |
| CN112366356A (en) * | 2020-07-29 | 2021-02-12 | 万向一二三股份公司 | Method for improving battery cell infiltration effect and lithium ion battery cell |
| CN112366356B (en) * | 2020-07-29 | 2022-04-12 | 万向一二三股份公司 | Method for improving battery cell infiltration effect and lithium ion battery cell |
| CN112736287A (en) * | 2020-12-25 | 2021-04-30 | 惠州亿纬创能电池有限公司 | Electrode wetting method, electrode and battery |
| CN113948776A (en) * | 2021-07-27 | 2022-01-18 | 宁波维科电池有限公司 | Method for improving battery cell infiltration efficiency |
| CN113948776B (en) * | 2021-07-27 | 2024-05-17 | 宁波维科电池有限公司 | Method for improving infiltration efficiency of battery cell |
| CN117832577A (en) * | 2023-12-29 | 2024-04-05 | 海希储能科技(山东)有限公司 | Manufacturing method of square aluminum shell battery |
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