CN210628412U - Manufacturing equipment for alkali metal composite cathode - Google Patents
Manufacturing equipment for alkali metal composite cathode Download PDFInfo
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- CN210628412U CN210628412U CN201922069868.8U CN201922069868U CN210628412U CN 210628412 U CN210628412 U CN 210628412U CN 201922069868 U CN201922069868 U CN 201922069868U CN 210628412 U CN210628412 U CN 210628412U
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- alkali metal
- compression roller
- metal composite
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- composite anode
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- 229910052783 alkali metal Inorganic materials 0.000 title claims abstract description 59
- 150000001340 alkali metals Chemical class 0.000 title claims abstract description 59
- 239000002905 metal composite material Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000007906 compression Methods 0.000 claims abstract description 39
- 230000006835 compression Effects 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 24
- 239000011888 foil Substances 0.000 claims description 16
- 239000000314 lubricant Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 13
- 238000004080 punching Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 9
- 230000001174 ascending effect Effects 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 4
- 239000010406 cathode material Substances 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 description 30
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 26
- 239000000463 material Substances 0.000 description 20
- 239000002131 composite material Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 210000001787 dendrite Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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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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- Battery Electrode And Active Subsutance (AREA)
Abstract
The application discloses preparation equipment of alkali metal composite cathode, including unwinding part and rolling part, be provided with at least two sets of compression roller pairs between the two, every group the compression roller pair is including last compression roller and lower compression roller, follows unwinding part points to the ascending interval of last compression roller and the lower roll of rolling part's side is steadilyd decrease, every the compression roller is connected with scraper component down, each group the compression roller is to all being connected to respective speed control part, speed control part is used for controlling and follows unwinding part points to the functioning speed of the ascending compression roller pair of rolling part increases progressively. The manufacturing equipment of the alkali metal composite cathode can ensure that the cathode material is integrally flat, eliminate irregular warping, improve the manufacturing efficiency of the alkali metal composite cathode and improve the yield.
Description
Technical Field
The utility model relates to a lithium ion battery technical field, more specifically say, relate to a preparation equipment of compound negative pole of alkali metal.
Background
At present, various carbon materials are widely applied to negative electrode materials of various lithium batteries, and have the advantages of low lithium intercalation potential, good conductivity, stable circulation, high coulombic efficiency, low cost and the like, but the theoretical specific capacity of the carbon materials is lower and is 372mAh/g, so that the further improvement of the energy density of the lithium batteries is limited. The alkali metal has low reduction potential and high theoretical specific capacity, and is an ideal material for a high-specific-capacity negative electrode of a lithium battery. Taking lithium as an example, lithium is the lightest metal element, the lowest reduction potential (-3.040V) and the highest theoretical specific capacity (1860mAh/g) are used as the 'final material' of the negative electrode of the lithium battery. However, the alkali metal used as the negative electrode has its own problems during the charging process, such as lithium, during the battery cycling process, lithium ion deposition is not uniform, which causes the growth of lithium dendrite, which causes defects on the electrode surface to increase polarization, and also destroys the surface Solid Electrolyte Interface (SEI), which causes the consumption of electrolyte, and "dead lithium" is formed after the dendrite is removed, which shortens the battery cycle life, and more seriously, the dendrite, once it pierces the separator, may cause the internal short circuit of the battery, which leads to the thermal runaway of the battery, which causes safety accidents.
The current method for modifying the alkali metal negative electrode mainly comprises the following steps: surface coating, in-situ formation of a stable SEI film, modification of an electrolyte formulation, and modification of a current collector or separator, etc., by which dendritic growth can be suppressed and coulombic efficiency of a battery can be improved, but these methods also have respective disadvantages. Recent research shows that the current density of the cathode can be reduced by constructing the alkali metal composite cathode, an additional alkali metal deposition site is provided, and the performance of the alkali metal as the cathode is effectively improved. For example, patent No. 201711377711.0 discloses a composite lithium metal negative electrode structure and a method for preparing the same, which uses a cold press composite method to composite a current collector with a lithium metal sheet, but is not suitable for continuous production. If the rolling method is used for producing the alkali metal composite cathode, continuous production is easy to realize, but the existing lithium ion battery pole piece rolling equipment is not suitable, most of the existing rolling equipment is a single roller system, the pole piece is compacted, the thickness change of materials is small, but the alkali metal texture is soft, the thickness change is large in the rolling process, the extension amount is large, the internal stress is uneven, and therefore the problems of irregular deformation such as warping and wrinkling, adhesion of the alkali metal and a working roller and the like are easy to occur, and the yield and the production efficiency of products are reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a preparation equipment of compound negative pole of alkali metal can guarantee that the negative pole material is whole level and smooth, eliminates irregular warpage, improves the preparation efficiency of the compound negative pole of alkali metal to improve the yields.
The utility model provides a pair of preparation equipment of alkali metal composite cathode, including unwinding part and rolling part, be provided with at least two sets of compression roller pairs between the two, every group the compression roller pair is including last compression roller and lower compression roller, follows unwinding part is directional the ascending interval of last compression roller of the side of rolling part and holding down roller steadilys decrease, every the compression roller is connected with scraper part, each group down the compression roller is to all being connected to respective speed control part, speed control part is used for control to follow unwinding part is directional the functioning speed of the ascending compression roller pair of rolling part scales up.
Preferably, in the above apparatus for manufacturing an alkali metal composite negative electrode, the speed control means is a servo motor.
Preferably, in the above apparatus for manufacturing an alkali metal composite anode, the number of the pair of press rolls is 3 to 8.
Preferably, in the above apparatus for manufacturing an alkali metal composite anode, a lubricant coating member is further provided above each of the upper press rolls, and a drying member is provided between the rightmost press roll pair and the winding member.
Preferably, in the above apparatus for manufacturing an alkali metal composite anode, the upper press roll is a heating roll.
Preferably, in the manufacturing apparatus for the alkali metal composite cathode, a foil punching component is further disposed on one side of the unwinding component, which is far away from the winding component.
Preferably, in the above apparatus for producing an alkali metal composite negative electrode, the lubricant-coated member is an NMP-coated member.
Preferably, in the above apparatus for manufacturing an alkali metal composite negative electrode, the drying means is a forced cooling fan.
Preferably, in the above apparatus for manufacturing an alkali metal composite negative electrode, the foil punching part is a laser punching part.
Preferably, in the above apparatus for manufacturing an alkali metal composite anode, the scraper member is located above the lower roll and near the winding member.
According to the above technical scheme, the utility model provides a preparation equipment of above-mentioned alkali metal composite negative pole, because every group of compression roller is to all being connected to respective speed control part, these speed control parts are used for controlling the operating speed who follows the ascending compression roller pair in the direction of the directional rolling part of unwinding part to increase gradually, consequently, the compression roller can adapt to the extension that the material caused because of the roll-in to the speed that increases gradually, apply the ascending power of a horizontal direction to the material, restrain the resilience that the material appears after leaving the compression roller, thereby can guarantee that the negative pole material is whole level and smooth, eliminate irregular warpage, improve the preparation efficiency of alkali metal composite negative pole, and improve the yields.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an apparatus for manufacturing an alkali metal composite anode according to the present disclosure;
fig. 2 is a schematic view of another example of an apparatus for manufacturing an alkali metal composite anode according to the present application.
Detailed Description
The core of the utility model is to provide a preparation equipment of compound negative pole of alkali metal can guarantee that the negative pole material is whole to be leveled, eliminates irregular warpage, improves the preparation efficiency of the compound negative pole of alkali metal to improve the yields.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
An embodiment of an apparatus for manufacturing an alkali metal composite anode provided by the present application is shown in fig. 1, where fig. 1 is a schematic view of the apparatus for manufacturing an alkali metal composite anode provided by the present application, the apparatus for manufacturing an alkali metal composite anode includes an unwinding part 1 and a winding part 2, as the name implies, the unwinding part 1 is used to put a foil and a substrate between a pair of pressing rollers, the winding part 2 is used to wind the alkali metal composite anode obtained after lamination, at least two sets of pressing roller pairs 3 are arranged between the two, the pressing roller pairs 3 are used to laminate multiple layers of materials into a whole, three sets of pressing roller pairs are shown in fig. 1, each set of pressing roller 3 includes an upper pressing roller 31 and a lower pressing roller 32, a distance between the upper pressing roller 31 and the lower pressing roller 32 in a direction from the unwinding part 1 to the winding part 2 decreases, specifically in fig. 1, a distance between the upper pressing roller 31 and the lower pressing roller 32 in a direction from left to right decreases, the thickness of the alkali metal composite cathode is gradually reduced to the required thickness, so that two layers of foils between two layers of press rollers can be gradually pressed together, the multi-stage rolling design can reduce the single pressing amount of the foils, thereby reducing the self stress in the material rolling process and preventing the foils from irregular deformation and even crushing, each press roller 32 is connected with a respective scraper component 4, the scraper component 4 can guide the material of the lower layer to be separated from the press roller 32 in time so as to avoid adhesion with the press roller 32, the embodiment is characterized in that each group of press roller pairs 3 are connected with respective speed control components 5, the speed control components 5 are used for controlling the operation speed of the press roller pairs 3 in the direction from the unreeling component 1 to the reeling component 2 to be gradually increased, and the speed control components can be of the same type or different types, without limitation, as long as each group of the roll pairs 3 corresponds to one speed control component 5, unlike the prior art, all the roll pairs are not connected to the same speed control component, specifically, in fig. 1, the left speed control component controls the corresponding roll pair to operate at a low speed, the middle speed control component controls the corresponding roll pair to operate at a medium speed, and the right speed control component is used for controlling the corresponding roll pair to operate at a high speed, that is, the left to right roll pairs do not operate at the same speed as the prior art, but the speeds are sequentially increased to apply a horizontal pulling force to the foil, so that an increasingly large horizontal extension amount of the material due to thickness reduction after rolling can be counteracted, occurrence of springback is suppressed, irregular deformation of the material is reduced, and the obtained composite negative electrode is more flat, the yield will be higher.
According to the technical scheme, in the embodiment of the manufacturing equipment for the alkali metal composite cathode, each group of the compression roller pairs is connected to the speed control component, and the speed control components are used for controlling the running speed of the compression roller pairs in the direction from the unwinding component to the winding component to be gradually increased, so that the sequentially increasing speed of the compression roller pairs can adapt to the extension of the material caused by rolling, a force in the horizontal direction is applied to the material, and the resilience of the material after the material leaves the compression roller pairs is inhibited, so that the integral flatness of the composite cathode material can be ensured, the irregular warping is eliminated, the manufacturing efficiency of the alkali metal composite cathode is improved, and the yield is improved.
In one embodiment of the above apparatus for manufacturing an alkali metal composite negative electrode, the speed control unit 5 may preferably be a servo motor which can make the control speed and position accuracy very accurate, convert the voltage signal into torque and rotation speed to drive the controlled object, control the rotation speed of the rotor of the servo motor by the input signal, and can react quickly, and in an automatic control system, the servo motor is used as an actuator, and has the characteristics of small electromechanical time constant, high linearity, starting voltage, and the like, and can convert the received electric signal into angular displacement or angular speed on the motor shaft for output.
In another embodiment of the above apparatus for manufacturing an alkali metal composite anode, the number of the pressing roller pairs 3 may preferably be 3 to 8, and the larger the number of the pressing roller pairs is, the better the control effect on the stress is, and the pressed composite anode product may be flatter, which is a preferable solution, but is not limited thereto, and actually, at least two pressing roller pairs may achieve the purpose, and only 3 or more may be better.
With continued reference to fig. 1, in a specific embodiment of the above apparatus for manufacturing an alkali metal composite negative electrode, a lubricant coating member 6 is further disposed above each upper press roll 31, and a drying member 7 is disposed between the rightmost press roll pair 3 and the winding member 2, such drying member 7 is used in cooperation with the lubricant coating member 6, the lubricant coating member 6 is used to coat a lubricant to prevent an alkali metal strip (including but not limited to a lithium strip) from adhering to the upper press roll, such drying member 7 is used to remove the residual lubricant after the rolling of the composite negative electrode is completed, and is finally wound and molded by the winding member 2.
In a preferred embodiment of the above manufacturing apparatus for the alkali metal composite negative electrode, the upper press roller 31 is a heating roller, and taking the lithium strip as an example, the heating roller can heat and soften the lithium strip to reduce the deflection of the composite negative electrode after rolling.
In an alternative, the one side of unreeling part 1 that keeps away from rolling part 2 still is provided with the foil part of punching, also can punch the foil before also just unreeling, and the purpose is the volume change of better adaptation lithium metal in roll-in process, reduces lithium metal and produces irregular deformation such as fold because of the volume change, stress when reducing the roll-in, and specific aperture of punching can be for 1um to 100um, and the hole interval can be for 0.1mm to 10 mm. In this case, with continued reference to fig. 1, the specific operation is as follows: porous alkali metal foil 8 and basement 9 unreel by unreeling part 1, get into many pairs of roll-in pairs 3 and roll-in step by step, and the roll-in-process produces the extension because of the reduction of alkali metal foil thickness, and the hole is closed, and the speed that the roller system increases gradually in proper order can adapt to the material because of the extension that the roll-in caused, and the material leaves the compression roller under scraper and the lubricant effect, is rolled up by rolling part 2 and takes shape.
Further, the above-mentioned lubricant-coated member 6 may preferably be an NMP-coated member, which is N-methylpyrrolidone, and which is capable of more effectively preventing adhesion between the alkali metal composite anode and the pair of press rolls, thereby being capable of further improving the rolling efficiency of the alkali metal composite anode.
In another alternative, the drying component 7 may be embodied as a forced cooling fan, in which case, the composite negative electrode can be cooled, the mechanical strength of the composite negative electrode is enhanced, the tensile fracture or deformation phenomenon which is easy to occur during rolling is avoided, and the performance of the product obtained in this way is better.
In other embodiments, the foil perforation device may preferably be a laser perforation device, which is more efficient, but may also be in the form of a mechanical perforation device, etc., without limitation.
In yet another alternative embodiment, the scraper member 4 may be located above the lower roller near the winding member, i.e. at the upper right of the lower roller in fig. 1, so that the scraping effect is better and the efficiency is higher, which is a preferable solution, and it may be located at other positions according to actual needs, and is not limited herein.
The operation of the above-described apparatus is described below in two examples:
the first example is as follows:
continuing to refer to fig. 1, the pair of pressing rollers 3 is connected with the unreeling part 1, the pair of pressing rollers 3 is connected with the drying part 7 and the reeling part 2, the roller spacing of the pair of pressing rollers 3 is gradually reduced to the thickness of the needed negative electrode, and the operation speed is gradually increased so as to apply force in the horizontal direction to the foil; the method comprises the following steps that a lithium belt with the thickness of 100um is pre-punched, the punching mode is laser punching, the aperture is 50um, the hole interval is 1mm, a porous lithium belt 8 and foam nickel 9 with the thickness of 300um are discharged from an unreeling part 1 and enter a compression roller pair 3, after the compression of the compression roller pair 3 on the left side, the lithium belt 8 and the foam nickel 9 are partially pressed, and the thickness is 350 um; then the lithium belt 8 and the foam nickel 9 are completely pressed through the middle compression roller pair 3, and the thickness is 300 um; after passing through the right compression roller pair 3, the composite cathode is rolled to 200um, the lithium belt extends in the process, and holes in the lithium belt are filled; in the operation process, the lubricant coating part 6 coats NMP on each press roller pair 3 to prevent the lithium belt 8 from being adhered to the upper press roller 31, the scraper part 4 can guide the foamed nickel 9 on the lower layer to be separated from the lower press roller 32 in time, and the composite negative electrode enters the drying part 7 after leaving the press roller pair 3, so that the NMP is quickly volatilized and then is rolled and formed by the rolling part 2.
The second example:
in this example, the separation layer is used to realize the separation from the press roll, so that no lubricant is needed to be coated and no drying component is needed, specifically, referring to fig. 2, fig. 2 is a schematic diagram of another example of the manufacturing equipment of the alkali metal composite negative electrode provided by the present application, the left press roll pair 3 is connected with the unwinding component 1, the right press roll pair 3 is simultaneously connected with the winding components 2 and 14, the distance between the left and right rolls is gradually reduced to the required negative electrode thickness, and the running speed is gradually increased to apply a force in the horizontal direction to the foil; the lithium belt with the thickness of 300um is pre-punched, the punching mode can be mechanical punching, the aperture is 100um, the hole interval is 5mm, the porous lithium belt 11, the copper mesh 10 with the thickness of 500um and the isolating layer 12 are discharged from the unwinding part 1 and enter between an upper pressing roller 31 and a lower pressing roller 32 in the pressing roller pair 3, after the pressing of the left pressing roller pair, the bottom of the lithium belt 11 and the copper mesh base 19 are pressed, and the thickness is 600 um; after passing through the middle press roller pair, the lithium belt 11 and the copper mesh 10 are completely pressed, and the thickness is 500 um; after passing through the right press roller pair, the composite negative electrode is rolled to 250um, the lithium belt is extended in the process, and holes in the lithium belt are filled; in the above operation process, the scraper component 4 can guide the timely separation of the copper mesh 10 and the lower press roll 32 on the lower layer, the composite negative electrode is separated from the isolation layer 12 via the scraper component 13 after leaving the right press roll pair, the isolation layer 12 is rolled by the rolling component 14 and is recycled, and the composite negative electrode is rolled and formed by the rolling component 2. The isolating layer used in this embodiment may be one or more of polyethylene paper, silicone oil film, silicone oil paper, and PET film, and is not limited herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a preparation equipment of compound negative pole of alkali metal, includes unwinding part and rolling part, is provided with at least two sets of compression roller pairs between the two, every group the compression roller pair is including last compression roller and lower compression roller, follows unwinding part points to the interval of last compression roller and the lower compression roller in the orientation of rolling part subtracts progressively, every the lower compression roller is connected with scraper part, its characterized in that, each group the compression roller pair all is connected to respective speed control part, speed control part is used for the control follow unwinding part points to the functioning speed of the compression roller pair in the orientation of rolling part increases progressively.
2. The apparatus for producing an alkali metal composite anode according to claim 1, wherein the speed control means is a servo motor.
3. The apparatus for manufacturing an alkali metal composite anode according to claim 1, wherein the number of the pair of pressing rolls is 3 to 8.
4. The apparatus for manufacturing an alkali metal composite anode according to claim 1, wherein a lubricant coating member is further provided above each of the upper press rolls, and a drying member is provided between the rightmost pair of press rolls and the winding member.
5. The apparatus for manufacturing an alkali metal composite anode according to claim 1, wherein the upper press roll is a heated roll.
6. The manufacturing equipment of the alkali metal composite cathode as claimed in any one of claims 1 to 5, wherein a foil punching component is further arranged on one side of the unreeling component away from the reeling component.
7. The apparatus according to claim 4, wherein the lubricant-coated member is an NMP-coated member.
8. The apparatus for producing an alkali metal composite anode according to claim 4, wherein the drying means is a forced cooling fan.
9. The apparatus for manufacturing an alkali metal composite anode according to claim 6, wherein the foil punching part is a laser punching part.
10. The manufacturing apparatus of the alkali metal composite anode according to claim 1, wherein the scraper member is located above the lower pressure roller at a position close to the winding member.
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| CN201922069868.8U CN210628412U (en) | 2019-11-26 | 2019-11-26 | Manufacturing equipment for alkali metal composite cathode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952546A (en) * | 2020-08-04 | 2020-11-17 | 梅州市量能新能源科技有限公司 | Double-roller continuous rolling device, lithium battery and manufacturing method of positive plate of lithium battery |
| CN113725395A (en) * | 2021-09-02 | 2021-11-30 | 上海联净电子科技有限公司 | Current collector production device and production method |
| CN116278117A (en) * | 2023-05-23 | 2023-06-23 | 江苏智泰新能源科技有限公司 | Compaction device and method for sodium ion battery pole piece production |
-
2019
- 2019-11-26 CN CN201922069868.8U patent/CN210628412U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952546A (en) * | 2020-08-04 | 2020-11-17 | 梅州市量能新能源科技有限公司 | Double-roller continuous rolling device, lithium battery and manufacturing method of positive plate of lithium battery |
| CN113725395A (en) * | 2021-09-02 | 2021-11-30 | 上海联净电子科技有限公司 | Current collector production device and production method |
| CN113725395B (en) * | 2021-09-02 | 2023-11-24 | 上海联净电子科技有限公司 | Current collector production device and production method |
| CN116278117A (en) * | 2023-05-23 | 2023-06-23 | 江苏智泰新能源科技有限公司 | Compaction device and method for sodium ion battery pole piece production |
| CN116278117B (en) * | 2023-05-23 | 2023-08-11 | 江苏智泰新能源科技有限公司 | Compaction device and method for sodium ion battery pole piece production |
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