CN110681725A - Stable in structure's lithium-ion battery pole piece roll squeezer - Google Patents
Stable in structure's lithium-ion battery pole piece roll squeezer Download PDFInfo
- Publication number
- CN110681725A CN110681725A CN201911030320.0A CN201911030320A CN110681725A CN 110681725 A CN110681725 A CN 110681725A CN 201911030320 A CN201911030320 A CN 201911030320A CN 110681725 A CN110681725 A CN 110681725A
- Authority
- CN
- China
- Prior art keywords
- roller
- roller press
- fixed
- pole piece
- press body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
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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
- 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
- H01M4/139—Processes of manufacture
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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
Abstract
The invention relates to a roller press, in particular to a lithium battery pole piece roller press with a stable structure, which comprises a roller press body and a base, wherein the roller press body is fixedly connected with the base through a spring rod, the side surface of the spring rod is relatively connected with a transverse spring rod, first springs are arranged between the transverse spring rod and the roller press body as well as between the transverse spring rod and the base, damping cylinders are arranged outside the transverse spring rod and the first springs, mounting plates and damping pads are sequentially fixed outside the damping cylinders at intervals, supporting rods are relatively fixed on the side surface of the roller press body, rubber pads are fixed at the bottoms of the supporting rods, first grooves are relatively arranged on the front side surface and the rear side surface of the roller press body, second grooves are arranged on the side surface of the first grooves, driving gears are arranged inside the second grooves, and the inner walls of the first grooves; the technical scheme provided by the invention can overcome the defects that the prior art is inconvenient to move, has poor stability of the whole structure when in use and is easy to cause the fold and the edge curl of the pole piece when a roll shaft is processed.
Description
Technical Field
The invention relates to a roller press, in particular to a lithium battery pole piece roller press with a stable structure.
Background
Compared with the graphite cathode commercially applied to the lithium ion battery at present, the lithium metal cathode can theoretically provide more capacity (3860mAh/g, graphite cathode: 370mAh/g), and the lithium metal cathode is expected to be widely applied in the fields of next-generation portable electronic equipment, electric automobiles and the like. Lithium-sulfur batteries and lithium-air batteries using lithium metal as a negative electrode have attracted attention and have become a focus of research in recent years in academia and industry. However, there are many problems in the study of lithium metal negative electrodes, and the most important one of them is the growth of dendrites. The dendrite is dendritic lithium deposit generated in the negative electrode in the process of multiple deposition and precipitation of the lithium ion negative electrode.
The existing lithium battery pole piece roller press is not convenient to move, and meanwhile, the stability of the whole structure is poor in the using process. In addition, common nip roll structure is comparatively single, is the even cylinder in surface usually, because there is the error in its processing, and the horizontal quality of roll surface causes the pole piece to crumple easily, even the phenomenon of fold turn-up also can appear in nip roll's depth of parallelism is errorless, must cause the waste of pole piece like this.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides the lithium battery pole piece rolling machine with a stable structure, which can effectively overcome the defects that the prior art is inconvenient to move, has poor stability of the whole structure during use, and is easy to cause fold and edge curling of a pole piece during roll shaft processing.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a lithium battery pole piece roller press with a stable structure comprises a roller press body and a base, wherein the roller press body is fixedly connected with the base through a spring rod, the side surface of the spring rod is relatively connected with a transverse spring rod, first springs are arranged between the transverse spring rod and the roller press body as well as between the transverse spring rod and the base, damping cylinders are arranged outside the transverse spring rod and the first springs, mounting plates and damping pads are sequentially fixed outside the damping cylinders at intervals, supporting rods are relatively fixed on the side surface of the roller press body, and rubber pads are fixed at the bottoms of the supporting rods;
the roller press comprises a roller press body and is characterized in that a front side face and a rear side face of the roller press body are respectively and oppositely provided with a first groove, a second groove is formed in the side face of the first groove, a driving gear is arranged in the second groove, the inner wall of the first groove is connected with one end of a vertical rod through a second spring, the other end of the vertical rod extends out of the bottom of the roller press body and is provided with a universal wheel, and gear teeth meshed with the driving gear are arranged on the side face of;
a containing cavity is formed in the rear portion of the second groove in the roller press body, a driving motor is arranged in the containing cavity, the inner wall of the containing cavity is connected with a limiting plate through a third spring, the edge of the limiting plate is attached to the inner wall of the containing cavity, a limiting block is fixed on the limiting plate, a rotary disc is fixed on a driving shaft of the driving motor and penetrates through the limiting plate and the containing cavity to be fixed with a driving gear, a limiting groove matched with the limiting block is fixed on the rotary disc, and an electromagnet is fixed at the position, opposite to the limiting plate, of the inner wall of the second groove;
the inside roller that is equipped with of roll squeezer body, the roller includes first roller, second roller, first roller, second roller are round platform structure and tapering and equal, the round platform bottom surface of first roller, second roller all is fixed with middle roller, middle roller is cylinder structure and outside cladding has the rubber circle, the equal fixed mounting in first roller, second roller outer end has the shrouding, fixed mounting has the spindle nose on the shrouding.
Preferably, the driving motor is fixed with the inner wall of the accommodating cavity through a mounting block.
Preferably, the section of the rotating disc is circular, and the section of the limiting plate is square.
Preferably, the limiting plate is made of a ferrous material.
Preferably, the stub shafts are coaxially fixed at the outer end of the sealing plate.
Preferably, the support rod is L-shaped, and the support rods are arranged in a left-right symmetrical mode.
Preferably, the spring rods are arranged in bilateral symmetry, and the transverse spring rods are arranged in bilateral symmetry with respect to the spring rods.
(III) advantageous effects
Compared with the prior art, when the lithium battery pole piece roller press with the stable structure needs to move, the driving gear can be driven to rotate by the aid of the driving motor, the vertical rod is driven to move downwards by the aid of the meshing relation between the driving gear and the gear teeth, so that the roller press body is supported by the vertical rod to be away from the ground, the movement can be realized by the aid of the universal wheel, after the roller press body is supported by the vertical rod to be away from the ground, the electromagnet and the driving motor are turned off, the limiting blocks on the limiting plates can be clamped into the limiting grooves on the turntable by the aid of the elastic force of the third spring, and; after the roller press is moved to a specified place, the driving motor and the electromagnet are started, so that the vertical rod is folded upwards, the base is contacted with the ground, the spring rod is matched with the first spring, the mounting plate and the vibration damping pad to effectively slow down the vibration of the roller press body, the internal structural strength of the vibration damping cylinder can be improved due to the arrangement of the transverse spring rod, and the supporting rod and the rubber pad can play a role in damping; in the process of rolling the lithium battery pole pieces, the circular truncated cone structures of the first roller shaft and the second roller shaft in the roller shafts and the cylindrical structures of the middle roller shafts can prevent the aluminum foils of the pole pieces from wrinkling and curling in the rolling process, prevent the white aluminum foils of the positive pole piece and the negative pole piece from cracking, reduce the rolling parallelism requirement of the roller shafts in the working state and improve the rolling processing yield.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the driving motor and the driving gear of the present invention;
FIG. 3 is a schematic view of the internal roller structure of the roller press body of the present invention;
in the figure:
1. a roller press body; 2. a base; 3. a spring lever; 4. a first spring; 5. a transverse spring bar; 6. a vibration damping cylinder; 7. mounting a plate; 8. a support bar; 9. a first groove; 10. a second groove; 11. a drive gear; 12. a second spring; 13. a vertical rod; 14. gear teeth; 15. an accommodating chamber; 16. a drive motor; 17. mounting blocks; 18. a third spring; 19. a limiting plate; 20. a limiting block; 21. an electromagnet; 22. a turntable; 23. a limiting groove; 24. a first roller shaft; 25. a second roller shaft; 26. an intermediate roll shaft; 27. closing the plate; 28. a shaft head; 29. a vibration damping pad; 31. and (7) a rubber pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A lithium battery pole piece roller press with a stable structure is shown in figures 1 to 3 and comprises a roller press body 1 and a base 2, wherein the roller press body 1 is fixedly connected with the base 2 through a spring rod 3, the side surface of the spring rod 3 is relatively connected with a transverse spring rod 5, first springs 4 are respectively arranged between the transverse spring rod 5 and the roller press body 1 as well as between the transverse spring rod 5 and the base 2, vibration reduction cylinders 6 are arranged outside the transverse spring rod 5 and the first springs 4, mounting plates 7 and vibration reduction pads 29 are sequentially fixed outside the vibration reduction cylinders 6 at intervals, supporting rods 8 are relatively fixed on the side surface of the roller press body 1, and rubber pads 31 are fixed at the bottoms of the supporting rods 8;
the front side surface and the rear side surface of the roller press body 1 are respectively and oppositely provided with a first groove 9, the side surface of the first groove 9 is provided with a second groove 10, a driving gear 11 is arranged in the second groove 10, the inner wall of the first groove 9 is connected with one end of a vertical rod 13 through a second spring 12, the other end of the vertical rod 13 extends out of the bottom of the roller press body 1 and is provided with a universal wheel, and the side surface of the vertical rod 13 is provided with a gear tooth 14 meshed with the driving gear 11;
an accommodating cavity 15 is formed in the roller press body 1 and located at the rear part of the second groove 10, a driving motor 16 is arranged in the accommodating cavity 15, the inner wall of the accommodating cavity 15 is connected with a limiting plate 19 through a third spring 18, the edge of the limiting plate 19 is attached to the inner wall of the accommodating cavity 15, a limiting block 20 is fixed on the limiting plate 19, a rotary disc 22 is fixed on a driving shaft of the driving motor 16 and penetrates through the limiting plate 19, the accommodating cavity 15 is fixed with the driving gear 11, a limiting groove 23 matched with the limiting block 20 is fixed on the rotary disc 22, and an electromagnet 21 is fixed at the position, opposite to the limiting plate 19, of;
the roller press comprises a roller press body 1, wherein the roller shaft comprises a first roller shaft 24 and a second roller shaft 25, the first roller shaft 24 and the second roller shaft 25 are of circular truncated cone structures and have equal taper, the circular truncated cone bottom surfaces of the first roller shaft 24 and the second roller shaft 25 are fixed with an intermediate roller shaft 26, the intermediate roller shaft 26 is of a cylindrical structure and is externally wrapped by a rubber ring, a sealing plate 27 is fixedly mounted at the outer ends of the first roller shaft 24 and the second roller shaft 25, and a shaft head 28 is fixedly mounted on the sealing plate 27.
Driving motor 16 is fixed with holding chamber 15 inner wall through installation piece 17, and the cross-section of carousel 22 is circularly, and limiting plate 19's cross-section is the square, and limiting plate 19 adopts iron material to make, and spindle nose 28 is coaxial to be fixed in 27 outer ends of shrouding, and bracing piece 8 is "L" shape, and 8 bilateral symmetry of bracing piece set up, and 3 bilateral symmetry of spring beam set up, and horizontal spring beam 5 sets up about 3 bilateral symmetry of spring beam.
When the roller press needs to move, the driving gear 11 can be driven to rotate by the aid of the driving motor 16, the vertical rod 13 is driven to move downwards by the aid of the meshing relation between the driving gear 11 and the gear teeth 14, the roller press body 1 is supported by the vertical rod 13 to be away from the ground, and the roller press can move by the aid of the universal wheels. After the vertical rod 13 supports the roller press body 1 away from the ground, the electromagnet 21 and the driving motor 16 are closed, and the limiting block 20 on the limiting plate 19 can be clamped into the limiting groove 23 on the turntable 22 by means of the elastic force of the third spring 18, so that the driving shaft of the driving motor 16 is prevented from rotating. The section of the limiting plate 19 is square, and the edge of the limiting plate 19 is attached to the inner wall of the accommodating cavity 15, so that the limiting plate 19 can be prevented from rotating along with the driving shaft of the driving motor 16.
After the mobile phone moves to a designated place, the driving motor 16 and the electromagnet 21 are started, so that the vertical rod 13 is folded upwards, and the base 2 is contacted with the ground. The spring rod 3 is matched with the first spring 4, the mounting plate 7 and the vibration damping pad 29 to effectively slow down the vibration of the roller press body 1, the internal structural strength of the vibration damping cylinder 6 can be improved by the arrangement of the transverse spring rod 5, and the supporting rod 8 and the rubber pad 31 can play a role in damping.
In the process of rolling the lithium battery pole pieces, the circular truncated cone structures of the first roller shaft 24 and the second roller shaft 25 and the cylindrical structure of the middle roller shaft 26 in the roller shafts can prevent the aluminum foils of the pole pieces from wrinkling and curling in the rolling process, prevent the white aluminum foils of the positive pole piece and the negative pole piece from cracking, reduce the rolling parallelism requirement of the roller shafts in a working state and improve the yield of rolling processing.
The rubber ring arranged on the intermediate roll shaft 26 can increase the friction force between the peripheral surface of the intermediate roll shaft 26 and the white aluminum foil, thereby further reducing wrinkles. The sealing plate 27 and the shaft head 28 can be made of steel with a common structure, so that the convenience in material processing is ensured; the shaft head 28 is formed by heat treatment, so that the strength is reliable, and the service life is prolonged.
In addition, the mounting structure of spindle nose 28 and roller press body 1 belongs to prior art, and driving motor 16 can synchronous operation, also can not synchronous operation, all can not cause the influence to the removal of roller press body 1, and the accessible singlechip is controlled each driving motor 16 output the same pulse when synchronous operation.
When the lithium battery pole piece roller press with the stable structure needs to move, the driving gear can be driven to rotate by the aid of the driving motor, the vertical rod is driven to move downwards by the aid of the meshing relation between the driving gear and the gear teeth, so that the roller press body is supported away from the ground by the vertical rod, the movement can be realized by the aid of the universal wheel, after the roller press body is supported away from the ground by the vertical rod, the electromagnet and the driving motor are turned off, the limiting blocks on the limiting plates can be clamped into the limiting grooves on the turntable by the aid of the elastic force of the third spring, and the driving shaft of the; after the roller press is moved to a specified place, the driving motor and the electromagnet are started, so that the vertical rod is folded upwards, the base is contacted with the ground, the spring rod is matched with the first spring, the mounting plate and the vibration damping pad to effectively slow down the vibration of the roller press body, the internal structural strength of the vibration damping cylinder can be improved due to the arrangement of the transverse spring rod, and the supporting rod and the rubber pad can play a role in damping; in the process of rolling the lithium battery pole pieces, the circular truncated cone structures of the first roller shaft and the second roller shaft in the roller shafts and the cylindrical structures of the middle roller shafts can prevent the aluminum foils of the pole pieces from wrinkling and curling in the rolling process, prevent the white aluminum foils of the positive pole piece and the negative pole piece from cracking, reduce the rolling parallelism requirement of the roller shafts in the working state and improve the rolling processing yield.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (7)
1. The utility model provides a stable in structure's lithium battery pole piece roll squeezer which characterized in that: the roller press comprises a roller press body (1) and a base (2), wherein the roller press body (1) is fixedly connected with the base (2) through a spring rod (3), the lateral side of the spring rod (3) is relatively connected with a transverse spring rod (5), first springs (4) are arranged between the transverse spring rod (5) and the roller press body (1) and between the transverse spring rod (5) and the base (2), damping cylinders (6) are arranged outside the transverse spring rod (5) and the first springs (4), mounting plates (7) and damping pads (29) are sequentially fixed outside the damping cylinders (6) at intervals, supporting rods (8) are relatively fixed on the lateral side of the roller press body (1), and rubber pads (31) are fixed at the bottoms of the supporting rods (8);
the front side face and the rear side face of the roller press body (1) are respectively and oppositely provided with a first groove (9), the side face of the first groove (9) is provided with a second groove (10), a driving gear (11) is arranged in the second groove (10), the inner wall of the first groove (9) is connected with one end of a vertical rod (13) through a second spring (12), the other end of the vertical rod (13) extends out of the bottom of the roller press body (1) and is provided with a universal wheel, and the side face of the vertical rod (13) is provided with a gear tooth (14) meshed with the driving gear (11);
the roller press is characterized in that an accommodating cavity (15) is formed in the roller press body (1) and located at the rear part of the second groove (10), a driving motor (16) is arranged in the accommodating cavity (15), the inner wall of the accommodating cavity (15) is connected with a limiting plate (19) through a third spring (18), the edge of the limiting plate (19) is attached to the inner wall of the accommodating cavity (15), a limiting block (20) is fixed on the limiting plate (19), a rotary disc (22) is fixed on a driving shaft of the driving motor (16) and penetrates through the limiting plate (19), the accommodating cavity (15) is fixed with the driving gear (11), a limiting groove (23) matched with the limiting block (20) is fixed on the rotary disc (22), and an electromagnet (21) is fixed at the position, opposite to the limiting plate (19), of the inner wall of the second;
the inside roller that is equipped with of roll squeezer body (1), the roller includes first roller (24), second roller (25), first roller (24), second roller (25) are round platform structure and tapering and equal, the round platform bottom surface of first roller (24), second roller (25) all is fixed with middle roller (26), middle roller (26) have the rubber circle for cylinder structure and outside cladding, the equal fixed mounting in first roller (24), second roller (25) outer end has shrouding (27), fixed mounting has spindle nose (28) on shrouding (27).
2. The structurally stable lithium battery pole piece roller press according to claim 1, characterized in that: the driving motor (16) is fixed with the inner wall of the accommodating cavity (15) through a mounting block (17).
3. The structurally stable lithium battery pole piece roller press according to claim 1, characterized in that: the section of the rotary disc (22) is circular, and the section of the limiting plate (19) is square.
4. The structurally stable lithium battery pole piece roller press according to claim 1, characterized in that: the limiting plate (19) is made of iron materials.
5. The structurally stable lithium battery pole piece roller press according to claim 1, characterized in that: the shaft head (28) is coaxially fixed at the outer end of the sealing plate (27).
6. The structurally stable lithium battery pole piece roller press according to claim 1, characterized in that: the support rod (8) is L-shaped, and the support rod (8) is arranged in a bilateral symmetry mode.
7. The structurally stable lithium battery pole piece roller press according to claim 1, characterized in that: the spring rods (3) are arranged in a bilateral symmetry mode, and the transverse spring rods (5) are arranged in a bilateral symmetry mode relative to the spring rods (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030320.0A CN110681725A (en) | 2019-10-28 | 2019-10-28 | Stable in structure's lithium-ion battery pole piece roll squeezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030320.0A CN110681725A (en) | 2019-10-28 | 2019-10-28 | Stable in structure's lithium-ion battery pole piece roll squeezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110681725A true CN110681725A (en) | 2020-01-14 |
Family
ID=69114210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911030320.0A Withdrawn CN110681725A (en) | 2019-10-28 | 2019-10-28 | Stable in structure's lithium-ion battery pole piece roll squeezer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110681725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112224941A (en) * | 2020-10-22 | 2021-01-15 | 广东达森特科技有限公司 | Automatic roll changing device for tissue production |
| CN113725394A (en) * | 2021-08-12 | 2021-11-30 | 王梅 | Pole piece tabletting device for lithium battery production |
-
2019
- 2019-10-28 CN CN201911030320.0A patent/CN110681725A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112224941A (en) * | 2020-10-22 | 2021-01-15 | 广东达森特科技有限公司 | Automatic roll changing device for tissue production |
| CN113725394A (en) * | 2021-08-12 | 2021-11-30 | 王梅 | Pole piece tabletting device for lithium battery production |
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Application publication date: 20200114 |
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