CN208939073U - A kind of li-ion electrode piece treating apparatus - Google Patents
A kind of li-ion electrode piece treating apparatus Download PDFInfo
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- CN208939073U CN208939073U CN201821690271.4U CN201821690271U CN208939073U CN 208939073 U CN208939073 U CN 208939073U CN 201821690271 U CN201821690271 U CN 201821690271U CN 208939073 U CN208939073 U CN 208939073U
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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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Abstract
The utility model relates to a kind of li-ion electrode piece treating apparatus, including unreeling structure, cleaning device, corona unit, conduction roller, coating head, high temperature drying ventilation device and baking box；Li-ion electrode substrate is put in the unreeling structure, it is transmitted to cleaning device and corona unit and carries out Ion Cleaning processing and sided corona treatment respectively, conduction roller is equipped in the cleaning device, corona unit rear end, electrode base material is transmitted to coating head by the conduction roller, coated head carries out processing to electrode base material and forms electrode coated material, it is equipped with high temperature drying ventilation device and baking box in the coating back-end of machine head, by high temperature drying wind and drying preparation li-ion electrode.The device of the utility model cohesive force that treated between electrode material and foil is promoted, and battery impedance reduces, and the lithium ion battery suitable application area produced is wide.
Description
Technical field
The utility model relates to technical field of lithium ion, in particular to a kind of processing unit of lithium-ion electric pole piece.
Background technique
Lithium ion is with its high-energy density, the advantages that high working voltage, long circulation life Environmental Safety, all the time
A large amount of general uses are obtained in portable battery product.As battery industry continues to develop, portable consumer class battery product function
More and more, the market demand is vigorous.Higher and higher, lithium ion battery battery under normal conditions is also required the manufacturing technology of battery
Pole, anode is using aluminum foil metal foil as substrate, and cathode is using copper foil as substrate.Substrate in the process in production,
A small amount of polymeric additive can be added in electrolyte, for flattening.Meeting in the foil surface meeting residue of finished product is made simultaneously
Contain such macromolecule object, such as gelatin.There is the internal resistance DC impedance that will increase battery in substance of this kind, lower in temperature
When, electric discharge polarization is big, and the capacity of releasing is low.Seriously affect usage experience.
To solve this technology problem, technical staff usually carries out anode, cathode, electrolyte, battery structure a variety of
Improvement and modification.The utility model provides lithium ion battery made from a kind of lithium ion cell electrode and the electrode, the manufacture of this electrode
It is simple to be easy, it is significantly improved in terms of the adhesive property of electrode, and discharge platform is high at low temperature.The energy of releasing is high,
Greatly improve user experience.
Summary of the invention
The purpose of the utility model is to provide a kind of processing units of lithium-ion electric pole piece, the electrode material after being processed
Cohesive force between foil is promoted, and battery impedance reduces, and the lithium ion battery suitable application area produced is wide.
To solve above-mentioned technical problem, technical solution provided by the utility model is:
A kind of li-ion electrode piece treating apparatus, including unreeling structure, cleaning device, corona unit, conduction roller, coating machine
Head, high temperature drying ventilation device and baking box；Li-ion electrode substrate is put in the unreeling structure, through being transmitted to cleaning device
Ion Cleaning processing and sided corona treatment are carried out respectively with corona unit, are equipped with conduction in the cleaning device, corona unit rear end
Electrode base material is transmitted to coating head by roller, the conduction roller, and coated head carries out processing to electrode base material and forms coating electricity
Pole material is equipped with high temperature drying ventilation device and baking box in the coating back-end of machine head, makes by high temperature drying wind and drying
Standby li-ion electrode.
Further, the cleaning device is Reel-to-reel type plasma cleaner.
Further, the corona unit is two-sided corona driven type wire body.
Further, the coating head is to squeeze material spray formula coating machine.
Further, the power of the high temperature drying ventilation device are as follows: 110~140KW, temperature setting are 45~95 degree,
Wind speed is set as 15~35HZ.
Further, the baking box temperature setting is 45~95 degree.
The utility model has the advantages that
The processing unit of the lithium-ion electric pole piece of the utility model is before substrate is coated, by plasma cleans, electricity
Corona device, carrying out surface cleaning and processing to substrate can be residual after the remaining high polymer of substrate surface after treatment is removed
Leave the hole location occupied.The anti-reduction of foil sheet resistance after cleaning, while the distribution of hole promotes the viscous of foil surface
Junction area and stress angle.Using li-ion electrode made of the present apparatus, electrode adhesion power is promoted significantly, solves electrode slice and making
Phenomenon is dropped off during making.It is low using lithium ion battery impedance made from the electrode, it is mentioned in low temperature and room temperature discharge capacity
It rises significantly, battery usage experience greatly improved.
Detailed description of the invention
Fig. 1: the structural schematic diagram of the processing unit of the lithium-ion electric pole piece of the utility model.
In figure: 1- unreeling structure, 2- substrate, 3- cleaning device, 4- corona unit, 5- conduct roller, and 6- coats head, and 7- is applied
Cover electrode material, 8- high temperature drying ventilation device, 9- baking box, 10- electrode.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
A kind of li-ion electrode piece treating apparatus, it is characterised in that: including unreeling structure, cleaning device, corona unit, biography
Deflector roll, coating head, high temperature drying ventilation device and baking box；Li-ion electrode substrate is put in the unreeling structure, through passing
It transports to cleaning device and corona unit and carries out Ion Cleaning processing and sided corona treatment respectively, in the cleaning device, corona unit
Rear end is equipped with conduction roller, and electrode base material is transmitted to coating head by the conduction roller, coated head to electrode base material at
Reason forms electrode coated material, is equipped with high temperature drying ventilation device and baking box in the coating back-end of machine head, dry by high temperature
Dry wind and drying preparation li-ion electrode.
In the utility model embodiment, the cleaning device is Reel-to-reel type plasma cleaner M1.
In the utility model embodiment, the corona unit is two-sided corona driven type wire body T4450.
In the utility model embodiment, the coating head is to squeeze material spray formula coating machine KSD630.
The power of the high temperature drying ventilation device are as follows: 110~140KW, temperature setting are 45~95 degree, and wind speed is set as
15~35HZ.
The baking box temperature setting is 45~95 degree.
Embodiment 1
Battery size: X1
Positive system: cobalt acid lithium (cladding, doping): cathode system: graphite and silicon-carbon mixture.Cobalt acid lithium physicochemical property:
D50 is 15.5 μm；Specific surface area is 0.27m2/g；The compacted density of anode pole piece is 3.8-4.2g/cm3；0.2C capacity plays
170-175mAh/g.Cathode physical and chemical index: meso-position radius is 20.0 μm；Specific surface area is 1.8m2/g；The compacting of the cathode pole piece
Density is 1.7-1.8g/cm3；
Electrolyte system: ethyl propionate EP, propene carbonate PC, ethylene carbonate EC (volume ratio 1:1:1)
By positive active material LiCo2, positive electrode binder PVDF, conductive agent carbon black, solvent NMP is with ratio 100:
1.6.1.2:45 batching mode ingredient is mixed to prepare slurry, and slurry is uniformly applied electrode material using the invention coating method
Overlay on two-sided in aluminum foil current collector and dry, roll, cut after be prepared into anode pole piece.
Negative electrode active material graphite, cathode dispersing agent C MC, negative electrode binder SBR, conductive agent conductive carbon black and aqueous solvent with
The mode ingredient of ratio 100:2:3:2:90 is mixed to prepare slurry.Slurry is uniform by electrode material using the invention coating method
Coated in it is two-sided in copper foil current collector and dry, roll, cut after be prepared into positive/negative plate, positive/negative plate be wound into core.
Cohesive force test:
Electrode after rolling carries out cohesive force measurement；
By above-mentioned core, enter shell (plastic-aluminum packaging film is formed), baking after injection by this preparation electrolyte, battery.Through
After pre- chemical conversion.After exhaust sealing, trimming, room temperature stand 3 days.Carrying out capacity amount, (charging: 0.5 charges to 4.40V, constant-voltage charge
It is less than 0.02C to electric current, electric discharge with 0.5C is discharged to 3.0V) it 3.86V is charged to 0.5C measures its capacity, finished product electricity
Pond.
Low-temperature test:
Test equipment: charge and discharge cabinet, high-low temperature chamber；
Battery core is held in 25 degree of chest and carries out solid measure by first choice: being denoted as initial capacity；
Volume test work step (1) constant-current discharge: battery core is discharged to 3.0V with 0.2C, and (2) are shelved 10 minutes, (3) battery core with
0.5C constant-current charge to 4.40V, after change into constant pressure 4.40V charging, cut-off current is less than 0.02C. (4) and shelves 10 minutes, (5) electricity
Core is discharged to 3.0V, recording capacity with 0.2C.(6) battery core is with 0.5C constant-current charge to 4.40V, after change into constant pressure 4.40V charging,
It is fully charged that cut-off current is less than 0.02C.
Battery core is transferred in -20 degree cryogenic boxes and is tested: (1) battery core is held on (2) 2 hours battery cores of 2h in 0 degree of environment
It is discharged to 3.0V with 0.2C, 0 degree of the capacity capacity for being discharged to 3.0V and 3.5V and 25 degree of lower 3.0V when record discharges into 3.0V
With compare, comparing result is referring to table 1.
Table 1
The above is only the preferred embodiment of the utility model, not makees limit in any form to the utility model
System, any person skilled in the art are not departing within the scope of technical solutions of the utility model, according to the utility model
Technical spirit, any simple modifications, equivalent substitutions and improvements to the above embodiments etc., still falls within the utility model
Within the protection scope of technical solution.
Claims (6)
1. a kind of li-ion electrode piece treating apparatus, it is characterised in that: including unreeling structure, cleaning device, corona unit, conduction
Roller, coating head, high temperature drying ventilation device and baking box；Li-ion electrode substrate is put in the unreeling structure, through transmitting
Ion Cleaning processing and sided corona treatment are carried out respectively to cleaning device and corona unit, after the cleaning device, corona unit
End is equipped with conduction roller, and electrode base material is transmitted to coating head by the conduction roller, and coated head handles electrode base material
Electrode coated material is formed, high temperature drying ventilation device and baking box are equipped in the coating back-end of machine head, by high temperature drying
Wind and drying preparation li-ion electrode.
2. li-ion electrode piece treating apparatus according to claim 1, it is characterised in that: the cleaning device is roll-to-roll
Formula plasma cleaner.
3. li-ion electrode piece treating apparatus according to claim 1, it is characterised in that: the corona unit is two-sided electricity
Dizzy driven type wire body.
4. li-ion electrode piece treating apparatus according to claim 1, it is characterised in that: the coating head is to squeeze spray
Material formula coating machine.
5. li-ion electrode piece treating apparatus according to claim 1, it is characterised in that: the high temperature drying ventilation device
Power are as follows: 110~140KW, temperature setting be 45~95 degree, wind speed is set as 15~35HZ.
6. li-ion electrode piece treating apparatus according to claim 1, it is characterised in that: the baking box temperature setting is
45~95 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821690271.4U CN208939073U (en) | 2018-10-18 | 2018-10-18 | A kind of li-ion electrode piece treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821690271.4U CN208939073U (en) | 2018-10-18 | 2018-10-18 | A kind of li-ion electrode piece treating apparatus |
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| Publication Number | Publication Date |
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| CN208939073U true CN208939073U (en) | 2019-06-04 |
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| CN201821690271.4U Active CN208939073U (en) | 2018-10-18 | 2018-10-18 | A kind of li-ion electrode piece treating apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210035408A (en) * | 2019-09-24 | 2021-04-01 | (주) 엠에이케이 | A method for coating the plate of secondary battery |
-
2018
- 2018-10-18 CN CN201821690271.4U patent/CN208939073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210035408A (en) * | 2019-09-24 | 2021-04-01 | (주) 엠에이케이 | A method for coating the plate of secondary battery |
| KR102316414B1 (en) | 2019-09-24 | 2021-10-22 | (주) 엠에이케이 | A method for coating the plate of secondary battery |
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