CN107346831A - A kind of method for improving lithium ion battery service life - Google Patents
A kind of method for improving lithium ion battery service life Download PDFInfo
- Publication number
- CN107346831A CN107346831A CN201610290292.6A CN201610290292A CN107346831A CN 107346831 A CN107346831 A CN 107346831A CN 201610290292 A CN201610290292 A CN 201610290292A CN 107346831 A CN107346831 A CN 107346831A
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- Prior art keywords
- collector
- processing
- positive
- lithium ion
- service life
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of method for improving lithium ion battery service life, the lithium ion battery includes negative collector, positive collector, electrode material, methods described is by carrying out physics or/and chemical treatment to the surface for bearing collector and/or positive collector, to increase negative collector and/or the adhesive property of positive collection liquid surface and electrode material.Surface area of the invention by changing collector, to increase the bonding force between electrode material and collector, it is extended the service life of battery, it is not only pollution-free, cost is low, it is crucial that the extension of lithium ion battery service life has important value and social effect to the pollution for solving the application of waste lithium ion and reducing old and useless battery.
Description
Technical field
The present invention is to be related to a kind of method for improving lithium ion battery service life, belongs to battery manufacture technology field.
Background technology
Now due to electronic product is more and more, the dosage of lithium ion battery is also increasing, and how to extend lithium ion battery makes
Also seemed with the life-span more and more important, because the can that increases the service life reduces dosage, particularly shown in electric automobile field
Obtain more necessary.Such as：It is Chinese patent application CN201610082650.4, entitled《Lithium-ion-power cell optimizes
Charging method》Invention in disclose a kind of charging method, the invention is efficiently charged to electrokinetic cell quick
Meanwhile electrokinetic cell will not be damaged and influence the service life of battery, but the invention is simply in the lithium ion battery existing life-span
On the basis of do not damage its service life, its service life can not be extended on the basis of existing service life.And research and develop a kind of
Efficiency high, pollution-free, the low method on improving lithium ion battery service life of cost, will be to solving discarded lithium-ion electric
The application in pond and the pollution for reducing old and useless battery have important value and social effect.
The content of the invention
Above mentioned problem and demand according to existing for prior art, it is an object of the invention to provide a kind of production efficiency height, technique letter
The method of the raising lithium ion battery service life single, pollution-free, cost is low.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of method for improving lithium ion battery service life, the lithium ion battery include negative collector, positive collector, electricity
Pole material, methods described are by carrying out physics or/and chemical treatment to the surface for bearing collector and/or positive collector, to increase
Add negative collector and/or the adhesive property of positive collection liquid surface and electrode material.
Positive collector or negative collector used in existing lithium ion battery are using aluminium foil, copper foil, then by aluminium foil, copper foil
After the thickness that calendering reaches required, production lithium ion battery is directly used in.Because the surface of metal foil is smooth, bonding
Surface electrode material in use, effect and battery due to discharge and recharge are constantly moved in use, electrode
Material gradually comes off from collection liquid surface, causes the service life of battery to shorten.Also, the electrode material due to coming off is in electricity
Accumulation in pond, squeezing action of the electrode material to barrier film can be increased, cause barrier film to be easily worn through, add in use
It is dangerous.And the present invention changes its surface area, to increase electrode material and afflux by handling collection liquid surface
The bonding force of body, reduction come off, so as to extend the service life of battery；Simultaneously as coming off for electrode material can be reduced,
Therefore reduce the accumulation for the electrode material that comes off, the service life of barrier film is extended, so as to also increase the security of battery.
Preferably, methods described is to carry out grinding process to bearing the surface of collector and/or positive collector.Grinding process
It is a kind of ripe metal surface treating method, the surface area of collection liquid surface can be greatly increased by grinding process, so as to
Increase the bonding force of electrode material and collection liquid surface.
Preferably, methods described is to carry out blasting treatment to bearing the surface of collector and/or positive collector.Blasting treatment
And a kind of method for effectively increasing metal surface area, the surface area of collector can be increased by 600 by blasting treatment
Times or so, so as to greatly increase bonding force.
Preferably, methods described is to carry out rolling frosting treatment to the surface for bearing collector and/or positive collector, makes it
Surface is changed into uneven.The advantages of rolling frosting treatment is that yield is high, cost is low.
Preferably, methods described is to be carried out to bearing the surface of collector and/or positive collector at ultrasonic surface roughening
Reason.The processing of ultrasonic surface roughening is a kind of physical treatment method, due to being to be in water to carry out in production, therefore can
To prevent collector from producing surface oxidation in processing procedure.
Preferably, methods described is to carry out chemical attack processing to bearing the surface of collector and/or positive collector.Chemistry
Corrosion treatment is also the low surface treatment method of a kind of efficiency high, cost, such as：Current collector aluminum foil is aligned using alkali or acid to enter
Row processing can greatly increase surface area.
Preferably, methods described is to carry out microporous processing to bearing the surface of collector and/or positive collector.Microporous
Processing is that the surface for making collector forms multiple micropores, and the presence of micropore can make the bonding agent on collector two sides be connected, so as to
Two sides is linked to be an entirety, effectively increases adhesive strength, prevents coming off for electrode material, increases service life.
As further preferred scheme, methods described be to through polishing sandblasting or rolling texturing or ultrasonic surface roughening or
The surface of negative collector and/or positive collector after chemical attack processing carries out microporous processing again.This processing method both can be with
Increase surface area, while two sides can be bonded again into an entirety.
As further preferred scheme, methods described is after carrying out microporous processing to the surface of negative collector and/or positive collector
Polished again or sandblasting or rolling texturing ultrasonic surface roughening or chemical attack processing.This processing method both can be with
Increase surface area, while two sides can be bonded again into an entirety.
As further preferred scheme, only the region for being used to be bonded electrode material on the surface is handled.Because only that
The surface needs being connected with electrode material are handled, and the region being connected with lug need not be handled.If pair and pole
The connected region of ear, which carries out surface treatment, can increase resistance, influence electric conductivity.
As further preferred scheme, covering protection is first carried out to the region on the surface without processing.If first to not
Need region to be processed to carry out covering protection, removed after being surface-treated, then by the region of covering protection.Such as：In copper
The lug part of paper tinsel is stained with adhesive sticker, tears adhesive sticker off again after surface treatment.And for example：Stone is coated in the lug part of aluminium foil
Wax is protected, and is after surface treatment again removed paraffin with solvent.
Compared with prior art, the present invention has the advantages that：
1st, the present invention is only by changing the surface area of collector, to increase the bonding force between electrode material and collector, so as to
The service life of battery is extended, improves the cost performance of battery.
2nd, the method for the present invention for improving lithium ion battery service life, it is not only pollution-free, cost is low, it is important to, lithium
The extension of ion battery service life has important valency to the pollution for solving the application of waste lithium ion and reducing old and useless battery
Value and social effect.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the method for raising lithium ion battery service life that embodiment 1 provides.
Fig. 2 is a kind of schematic diagram of the method for raising lithium ion battery service life that embodiment 2 provides.
Fig. 3 is a kind of schematic diagram of the method for raising lithium ion battery service life that embodiment 3 provides.
Fig. 4 is a kind of schematic diagram of the method for raising lithium ion battery service life that embodiment 4 provides.
Embodiment
Technical scheme is further elaborated with reference to embodiment and accompanying drawing：
Embodiment 1
Shown in reference picture 1：A kind of method for raising lithium ion battery service life that the present embodiment provides is as follows：By collector
The surface of 1 pole plate 2 is roughened, such as：By polishing sandblasting or rolling texturing or ultrasonic surface roughening or
Chemical attack is handled, and original smooth surface is become rough surface 4, and enhancing is bonding with electrode material after increasing its surface area
Intensity, prevent that electrode material comes off in use, so as to reach the purpose for extending battery.The table of lug 3
Face does not process, because lug 3 is used for conduction, if processing can influence its electric conductivity.
Embodiment 2
Shown in reference picture 2：A kind of method for raising lithium ion battery service life that the present embodiment provides is as follows：By collector
The surface of 1 pole plate 2 carries out microporous processing, and micropore 5 is got on the surface of pole plate 2, and electrode material is applied on the surface of pole plate 2
During material, bonding agent can pass through micropore 5 that the electrode material on two sides is bonded into an entirety, so as to add electrode material and pole
Adhesive strength between plate 2, it is therefore prevented that electrode material coming off in use, so as to extend the service life of battery.
Embodiment 3
Shown in reference picture 3：A kind of method for raising lithium ion battery service life that the present embodiment provides is as follows：In collector
In 1A production process, the region 6 for not needing coarse surface treatment is covered, then rough surface is carried out to pole plate 2
Change is handled, because the region 6 for making lug is capped, so will not be processed.After having handled, 6 coating will be covered
Remove (such as：If being covered with adhesive sticker, now adhesive sticker is torn).
Embodiment 4
Shown in reference picture 4：A kind of method for raising lithium ion battery service life that the present embodiment provides is as follows：Rolled with micropore
For cylinder 7 by being rolled to pole plate 2, the pricker 8 on the surface of micropore roller 7 can make the surface of pole plate 2 produce micropore, micropore
It is smooth domain 9 that roller 7, which has one section, because the surface of smooth domain 9 is without pricker, so rolling pole plate in smooth domain 9
Micropore will not be produced when 2, this region is used to make lug.
Finally be necessary described herein be：Above example is served only for saying technical scheme in further detail
It is bright, it is impossible to be interpreted as limiting the scope of the invention, those skilled in the art makes according to the above of the present invention
Some nonessential modifications and adaptations belong to protection scope of the present invention.
Claims (10)
1. a kind of method for improving lithium ion battery service life, the lithium ion battery includes negative collector, positive collector, electrode
Material, it is characterized in that：By carrying out physics or/and chemical treatment to the surface for bearing collector and/or positive collector, to increase negative afflux
Body and/or the adhesive property of positive collection liquid surface and electrode material.
2. the method according to claim 11, it is characterized in that：The surface for bearing collector and/or positive collector is polished or sprayed
Sand processing.
3. the method according to claim 11, it is characterized in that：Rolling texturing is carried out to the surface for bearing collector and/or positive collector
Processing, makes its surface be changed into uneven.
4. the method according to claim 11, it is characterized in that：Ultrasonic wave table is carried out to the surface for bearing collector and/or positive collector
Face roughening processing.
5. the method according to claim 11, it is characterized in that：Chemical attack is carried out to the surface for bearing collector and/or positive collector
Processing.
6. according to the method any one of claim 2-5, it is characterized in that：To the negative collector after processing and/or positive collector
Surface carry out microporous processing again.
7. the method according to claim 11, it is characterized in that：The surface for bearing collector and/or positive collector is carried out at microporous
Reason.
8. the method according to claim 11, it is characterized in that：To the negative collector after progress microporous processing and/or positive collector
Surface polished again sandblasting or rolling texturing or ultrasonic surface roughening or chemical attack processing.
9. the method according to claim 11, it is characterized in that：Only the region for being used to be bonded electrode material on the surface is carried out
Processing.
10. the method according to claim 11, it is characterized in that：Covering guarantor is first carried out to the region on the surface without processing
Shield.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290292.6A CN107346831A (en) | 2016-05-04 | 2016-05-04 | A kind of method for improving lithium ion battery service life |
| PCT/CN2017/082708 WO2017190642A1 (en) | 2016-05-04 | 2017-05-02 | Method for prolonging service life of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290292.6A CN107346831A (en) | 2016-05-04 | 2016-05-04 | A kind of method for improving lithium ion battery service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107346831A true CN107346831A (en) | 2017-11-14 |
Family
ID=60202755
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610290292.6A Pending CN107346831A (en) | 2016-05-04 | 2016-05-04 | A kind of method for improving lithium ion battery service life |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107346831A (en) |
| WO (1) | WO2017190642A1 (en) |
Cited By (7)
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| CN107946544A (en) * | 2017-11-20 | 2018-04-20 | 湖北富奕达电子科技有限公司 | One kind penetrates aluminium foil manufacturing process |
| CN108122691A (en) * | 2017-12-25 | 2018-06-05 | 深圳市中金高能电池材料有限公司 | Lithium-ion capacitor collector foil and its manufacturing method |
| CN111525141A (en) * | 2020-04-30 | 2020-08-11 | 江苏厚生新能源科技有限公司 | Preparation method of high-surface-area aluminum foil |
| CN112670436A (en) * | 2020-12-17 | 2021-04-16 | 惠州市豪鹏科技有限公司 | Preparation method of battery pole piece |
| CN112670437A (en) * | 2020-12-17 | 2021-04-16 | 惠州市豪鹏科技有限公司 | Preparation method of battery pole piece |
| CN112687905A (en) * | 2020-12-26 | 2021-04-20 | 上海捷氢科技有限公司 | Fuel cell anode collector plate and fuel cell stack |
| CN114243024A (en) * | 2021-11-17 | 2022-03-25 | 喆烯新材(北京)科技有限公司 | Preparation method and preparation equipment of graphene roughened current collector |
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| US20220267886A1 (en) * | 2021-02-19 | 2022-08-25 | GM Global Technology Operations LLC | Melt spinning methods for forming lithium-metal foils and electrodes of electrochemical devices |
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| CN107946544A (en) * | 2017-11-20 | 2018-04-20 | 湖北富奕达电子科技有限公司 | One kind penetrates aluminium foil manufacturing process |
| CN108122691A (en) * | 2017-12-25 | 2018-06-05 | 深圳市中金高能电池材料有限公司 | Lithium-ion capacitor collector foil and its manufacturing method |
| CN108122691B (en) * | 2017-12-25 | 2020-06-19 | 赣州市中金高能电池材料股份有限公司 | Lithium ion capacitor current collector foil and manufacturing method thereof |
| CN111525141A (en) * | 2020-04-30 | 2020-08-11 | 江苏厚生新能源科技有限公司 | Preparation method of high-surface-area aluminum foil |
| CN112670436A (en) * | 2020-12-17 | 2021-04-16 | 惠州市豪鹏科技有限公司 | Preparation method of battery pole piece |
| CN112670437A (en) * | 2020-12-17 | 2021-04-16 | 惠州市豪鹏科技有限公司 | Preparation method of battery pole piece |
| CN112687905A (en) * | 2020-12-26 | 2021-04-20 | 上海捷氢科技有限公司 | Fuel cell anode collector plate and fuel cell stack |
| CN114243024A (en) * | 2021-11-17 | 2022-03-25 | 喆烯新材(北京)科技有限公司 | Preparation method and preparation equipment of graphene roughened current collector |
| CN114243024B (en) * | 2021-11-17 | 2023-09-05 | 荣烯新材(北京)科技有限公司 | Preparation method and preparation equipment of graphene roughened current collector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017190642A1 (en) | 2017-11-09 |
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Application publication date: 20171114 |