CN212598217U - Metal lithium battery pole piece production equipment - Google Patents

Metal lithium battery pole piece production equipment Download PDF

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Publication number
CN212598217U
CN212598217U CN202020922647.0U CN202020922647U CN212598217U CN 212598217 U CN212598217 U CN 212598217U CN 202020922647 U CN202020922647 U CN 202020922647U CN 212598217 U CN212598217 U CN 212598217U
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China
Prior art keywords
lithium
waste material
pole piece
battery pole
lithium battery
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CN202020922647.0U
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Chinese (zh)
Inventor
李琦旸
袁中直
曾志强
张海波
何豪威
赖彩婷
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Eve Energy Co Ltd
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Eve Energy Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model relates to a battery manufacturing technology field discloses a metal lithium battery pole piece production facility, include: the feeding assembly is used for placing and conveying the lithium belt with the support membrane; the forming assembly comprises a driving mechanism and a cutting die mechanism, the cutting die mechanism is connected to the output end of the driving mechanism, and the driving mechanism can drive the cutting die mechanism to punch and cut the lithium belt into the metal lithium battery pole piece; waste material rolling subassembly, including lithium area waste material dish and support membrane waste material dish, lithium area waste material dish with support membrane waste material dish all rotates to be connected on the organism, die-cut back the lithium area convolute in on the lithium area waste material dish, die-cut back support membrane convolute in support membrane waste material dish is last. Through the structure, the production equipment for the metal lithium battery pole piece can avoid the fracture of a lithium belt, and is favorable for the large-scale production of the metal lithium battery pole piece.

Description

Metal lithium battery pole piece production equipment
Technical Field
The utility model relates to a battery manufacturing technology field especially relates to a metal lithium battery pole piece production facility.
Background
With the wide application of electric vehicles and various electronic products, the application range of the lithium ion battery with high energy ratio is more and more extensive. Because the specific energy of the battery is directly influenced by the capacity of the material used by the battery, the graphite cathode material commonly used at present cannot meet the requirement of the battery with high energy ratio because of lower capacity.
The metal lithium has higher theoretical specific capacity and lower density, and becomes a preferred negative electrode material for improving the specific energy density of the battery. However, in the production process of the metal lithium battery pole piece, because the metal lithium is soft and low in strength, the lithium belt is easy to be pulled and broken in the unfolding and processing process, and the large-scale production of the metal lithium battery pole piece is severely restricted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a metal lithium battery pole piece production facility, this metal lithium battery pole piece production facility can avoid the lithium area fracture, is favorable to metal lithium battery pole piece's scale production.
To achieve the purpose, the utility model adopts the following technical proposal:
a metal lithium battery pole piece production equipment comprises:
the feeding assembly is used for placing and conveying the lithium belt with the support membrane;
the forming assembly comprises a driving mechanism and a cutting die mechanism, the cutting die mechanism is connected to the output end of the driving mechanism, and the driving mechanism can drive the cutting die mechanism to punch and cut the lithium belt into the metal lithium battery pole piece;
waste material rolling subassembly, including lithium area waste material dish and support membrane waste material dish, lithium area waste material dish with support membrane waste material dish all rotates to be connected on the organism, die-cut back the lithium area convolute in on the lithium area waste material dish, die-cut back support membrane convolute in support membrane waste material dish is last.
Preferably, the waste winding assembly further comprises a first motor and a second motor, the output end of the first motor is connected to the lithium strip waste tray, and the output end of the second motor is connected to the support film waste tray.
Preferably, the waste winding assembly further comprises a first limiting shaft and a second limiting shaft, the first limiting shaft and the second limiting shaft are rotatably connected to the machine body, the first limiting shaft is arranged on the upper portion of the lithium belt waste material disc, the second limiting shaft is arranged between the lithium belt waste material disc and the support film waste material disc, the first limiting shaft is in limiting butt connection with the lithium belt after punching, and the second limiting shaft is in limiting butt connection with the support film after punching.
Preferably, the lithium ion battery also comprises a storage box, wherein the storage box is arranged on the machine body and is used for containing the metal lithium ion battery pole piece.
Preferably, the molding assembly further comprises a base, the base is arranged on one side, away from the driving mechanism, of the cutting die mechanism, and the cutting die mechanism can punch the lithium strip on the base.
Preferably, the molding assembly further comprises a guide mechanism, the guide mechanism comprises a guide post and a support plate, the support plate is connected with one end of the guide post, the driving mechanism is installed on the support plate, the other end of the guide post is connected to the machine body, and the cutting die mechanism is connected to the guide post in a sliding mode.
Preferably, the cutting die mechanism comprises a movable plate and a cutting die, the movable plate is connected to the output end of the driving mechanism, and the cutting die is connected to one side of the movable plate, which is far away from the driving mechanism.
Preferably, the guide mechanism further comprises a linear bearing, the linear bearing is mounted on the movable plate, and the linear bearing is slidably sleeved on the guide column.
Preferably, the feeding assembly comprises a feeding tray and a supporting member, the lithium strip with the supporting membrane is wound on the feeding tray, the feeding tray is rotatably connected to the supporting member, and the supporting member is connected to the machine body.
Preferably, the feeding assembly further comprises a reinforcing rib, and the reinforcing rib is connected to the supporting member and the machine body.
The utility model has the advantages that:
the utility model provides a metal lithium battery pole piece production facility, this metal lithium battery pole piece production facility includes the pay-off subassembly, forming assembly and waste material rolling component, forming assembly arranges in between pay-off subassembly and the waste material rolling component, the pay-off subassembly is used for placing and carrying the lithium area that has the support membrane, actuating mechanism among the forming component can drive cutting die mechanism and take the die-cut metal lithium battery pole piece that becomes in lithium area, waste material rolling component pulling has the lithium area that supports the membrane to remove downstream, and can get up the support membrane waste material after die-cut and the rolling of lithium area waste material.
Wherein, waste material rolling component includes lithium area waste material dish and support membrane waste material dish, and the lithium area after the die-cut is connected on lithium area waste material dish, and the lithium area after the die-cut moves and finally convolutes on lithium area waste material dish down in the pulling of lithium area waste material dish, realizes the recovery of lithium area waste material. The punched support film is connected to the support film waste material disc, moves downstream under the pulling of the support film waste material disc and is finally wound on the support film waste material disc, and the recovery of the support film is realized. Through the structure, the lithium belt with the support film moves downstream under the common pulling of the lithium belt waste material disc and the support film waste material disc, so that the pulling force applied to the lithium belt is reduced, the lithium belt can be effectively prevented from being broken due to pulling, and the large-scale production of metal lithium battery pole pieces is facilitated.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a metal lithium battery pole piece production device provided by the specific embodiment of the present invention.
In the figure:
1. a feeding assembly; 11. a feed tray; 12. a support member; 13. reinforcing ribs;
2. a molding assembly; 21. a drive mechanism; 22. a cutting die mechanism; 221. a movable plate; 23. a base; 24. a guide mechanism; 241. a guide post; 242. a support plate; 243. a linear bearing;
3. a waste take-up assembly; 31. a lithium strip scrap tray; 32. supporting the film waste tray; 33. a first motor; 34. a second motor; 35. a first limit shaft; 36. a second limit shaft;
4. a storage box;
100. a support film; 101. a lithium tape.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The utility model provides a lithium metal battery pole piece production facility, as shown in figure 1, this lithium metal battery pole piece production facility includes pay-off subassembly 1, shaping subassembly 2 and waste material rolling subassembly 3, pay-off subassembly 1 and waste material rolling subassembly 3 are arranged in to shaping subassembly 2, pay-off subassembly 1 is used for placing and carries the lithium area 101 that has supporting membrane 100, shaping subassembly 2 is used for punching out lithium metal battery pole piece on the lithium area 101 that has supporting membrane 100, waste material rolling subassembly 3 can be with the lithium area 101 that has supporting membrane 100 on the pay-off subassembly 1 downstream pulling, and the waste material rolling after shaping subassembly 2 processing is got up, retrieve.
Specifically, the waste winding assembly 3 comprises a lithium belt waste tray 31 and a support film waste tray 32, the lithium belt waste tray 31 and the support film waste tray 32 are rotatably connected to the machine body, the punched lithium belt 101 is connected with and wound on the lithium belt waste tray 31, the punched support film 100 is connected with and wound on the support film waste tray 32, the lithium belt waste tray 31 and the support film waste tray 32 respectively pull the punched lithium belt 101 and the punched support film 100 to pull the lithium belt 101 with the support film 100 to move downstream, the pulling force applied to the lithium belt 101 is remarkably reduced, the lithium belt 101 can be effectively prevented from being broken due to the pulling force, and the large-scale production of metal lithium battery pole pieces is facilitated. Preferably, the lithium strip waste material tray 31 and the support film waste material tray 32 are both provided with lightening holes, so that the weight of the lithium strip waste material tray 31 and the weight of the support film waste material tray 32 can be lightened, and the reduction of the rotation loss of the lithium strip waste material tray 31 and the support film waste material tray 32 is facilitated.
In this embodiment, waste material rolling component 3 still includes first motor 33 and second motor 34, first motor 33 and second motor 34 are all installed on the organism, the output of first motor 33 is connected in lithium area waste material dish 31, the output of second motor 34 is connected in supporting membrane waste material dish 32, first motor 33 is used for driving lithium area waste material dish 31 and rotates, second motor 34 is used for driving supporting membrane waste material dish 32 and rotates, make lithium area waste material dish 31 and supporting membrane waste material dish 32 can stimulate respectively and roll the lithium area 101 and the supporting membrane 100 after the die-cut.
Preferably, the waste winding assembly 3 further comprises a first limiting shaft 35 and a second limiting shaft 36, the first limiting shaft 35 and the second limiting shaft 36 are rotatably connected to the machine body, the first limiting shaft 35 is located at the upstream of the lithium strip waste tray 31, the second limiting shaft 36 is located between the lithium strip waste tray 31 and the support film waste tray 32, and the first limiting shaft 35 is in limiting abutting connection with the punched lithium strip 101 to guide the lithium strip 101 and prevent the lithium strip 101 from deviating; the second limiting shaft 36 is in limiting contact with the punched support film 100, guides the lithium belt 101 and prevents the lithium belt from deviating.
This metal lithium-ion battery pole piece production facility still includes storage box 4, and storage box 4 is arranged in on the organism, and is located the low reaches of shaping subassembly 2 for hold die-cut fashioned metal lithium-ion battery pole piece. It can be understood that the punched metal lithium battery pole piece can be manually placed in the storage box 4 by an operator, and can also be placed in the storage box 4 after being taken by a manipulator, and in this embodiment, the mode that the metal lithium battery pole piece is placed in the storage box 4 is not limited.
In this embodiment, the forming assembly 2 includes a driving mechanism 21 and a cutting die mechanism 22, the cutting die mechanism 22 is connected to an output end of the driving mechanism 21, and the driving mechanism 21 can drive the cutting die mechanism 22 to punch the lithium strip 101 into a metal lithium battery pole piece. Specifically, the cutting die mechanism 22 includes a movable plate 221 and a cutting die, one side of the movable plate 221 is connected to the output end of the driving mechanism 21, the cutting die is connected to one side of the movable plate 221 away from the driving mechanism 21, and the driving mechanism 21 drives the cutting die to punch the lithium strip 101 into a metal lithium battery pole piece through the movable plate 221. In this embodiment, the driving mechanism 21 may be one of an oil cylinder, an air cylinder, and a linear motor, and the output end of the driving mechanism 21 can drive the movable plate 221 to drive the cutting die to press the lithium belt 101, so as to cut the lithium belt 101 into a metal lithium battery pole piece with a specific shape. Preferably, the cutting die is composed of a bottom plate, a buffer layer and a blade, one side of the bottom plate is connected to the movable plate 221, the buffer layer and the blade are both connected to one side of the bottom plate far away from the movable plate 221, the blade is used for cutting a metal lithium battery pole piece with a specific shape from the lithium belt 101, and the buffer layer can buffer the pressing of the bottom plate on the lithium belt 101 when the cutting die cuts, so as to prevent the lithium belt 101 from being damaged.
Preferably, the forming assembly 2 further includes a base 23, the base 23 is connected to the machine body and disposed on one side of the movable plate 221 away from the driving mechanism 21, and the cutting die mechanism 22 can press and punch the lithium belt 101 on the base 23, so as to cut the metal lithium battery pole piece from the lithium belt 101. The forming assembly 2 further includes a guiding mechanism 24, the guiding mechanism 24 includes a guiding post 241 and a supporting plate 242, the supporting plate 242 is connected to one end of the guiding post 241, the driving mechanism 21 is installed on the supporting plate 242, the other end of the guiding post 241 is connected to the machine body, the movable plate 221 is slidably connected to the guiding post 241, and the movable plate 221 drives the cutting die to move under the guiding of the guiding post 241. Specifically, the guide mechanism 24 further includes a linear bearing 243, the linear bearing 243 is mounted on the movable plate 221, and the linear bearing 243 is slidably sleeved on the guide post 241, so that the frictional resistance between the guide post 241 and the movable plate 221 is small, the sliding is smooth, and the reduction of the power consumption of the driving mechanism 21 is facilitated.
In this embodiment, the feeding assembly 1 includes a feeding tray 11 and a support 12, the lithium ribbon 101 with the support film 100 is wound on the feeding tray 11, the feeding tray 11 is rotatably connected to the support 12, the support 12 is connected to the machine body, and the feeding tray 11 can rotate under the pulling of the lithium ribbon 101 with the support film 100 and discharge the lithium ribbon 101 with the support film 100 wound thereon. Preferably, the feeding assembly 1 further comprises a reinforcing rib 13, and the reinforcing rib 13 is connected to the joint of the supporting member 12 and the machine body, so that the connection strength of the supporting member 12 and the machine body can be enhanced, and the bearing capacity of the feeding tray 11 can be improved.
In this embodiment, the lithium ribbon may be pure metal lithium (greater than 99%), or may be a lithium alloy, such as a lithium magnesium alloy, a lithium aluminum alloy, a lithium copper alloy, and the like. Preferably, the thickness of the lithium ribbon is set to range from 1 μm to 2000 μm, and the width of the lithium ribbon is set to range from 100mm or more. Specifically, the thickness of lithium area sets up to 30 mu m, and the width of lithium area sets up to 100mm for this metal lithium battery pole piece production facility is difficult for cutting the border of lithium area when die-cutting lithium area, and is convenient to cutting of lithium area. In this embodiment, when the lithium strip is cut, the pressure output by the driving mechanism 21 is 0.5Mpa, and the pressure holding time is at least 0.1s, which is beneficial to smoothly cutting the lithium strip.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a metal lithium battery pole piece production facility which characterized in that includes:
the feeding assembly (1) is used for placing and conveying the lithium belt (101) with the supporting film (100);
the forming assembly (2) comprises a driving mechanism (21) and a cutting die mechanism (22), the cutting die mechanism (22) is connected to the output end of the driving mechanism (21), and the driving mechanism (21) can drive the cutting die mechanism (22) to punch the lithium belt (101) into metal lithium battery pole pieces;
waste material rolling subassembly (3), including lithium area waste material dish (31) and support membrane waste material dish (32), lithium area waste material dish (31) with support membrane waste material dish (32) all rotate to be connected on the organism, die-cut back lithium area (101) convolute in on lithium area waste material dish (31), die-cut back support membrane (100) convolute in on support membrane waste material dish (32).
2. The production equipment of the metal lithium battery pole piece is characterized in that the scrap rolling component (3) further comprises a first motor (33) and a second motor (34), wherein the output end of the first motor (33) is connected to the lithium belt scrap tray (31), and the output end of the second motor (34) is connected to the support film scrap tray (32).
3. The metal lithium battery pole piece production equipment of claim 1, wherein the waste winding component (3) further comprises a first limiting shaft (35) and a second limiting shaft (36), the first limiting shaft (35) and the second limiting shaft (36) are rotatably connected to the machine body, the first limiting shaft (35) is arranged at the upstream of the lithium belt waste material disc (31), the second limiting shaft (36) is arranged between the lithium belt waste material disc (31) and the support film waste material disc (32), the first limiting shaft (35) is in limiting butt joint with the punched lithium belt (101), and the second limiting shaft (36) is in limiting butt joint with the punched support film (100).
4. The production equipment of the metal lithium battery pole piece, according to claim 1, further comprises a storage box (4), wherein the storage box (4) is arranged on the machine body, and the storage box (4) is used for containing the metal lithium battery pole piece.
5. The metal lithium battery pole piece production equipment according to claim 1, wherein the forming assembly (2) further comprises a base (23), the base (23) is arranged on one side of the cutting die mechanism (22) far away from the driving mechanism (21), and the cutting die mechanism (22) can cut the lithium belt (101) on the base (23).
6. The metal lithium battery pole piece production equipment according to claim 1, wherein the forming assembly (2) further comprises a guide mechanism (24), the guide mechanism (24) comprises a guide post (241) and a support plate (242), the support plate (242) is connected with one end of the guide post (241), the driving mechanism (21) is installed on the support plate (242), the other end of the guide post (241) is connected with the machine body, and the cutting die mechanism (22) is connected with the guide post (241) in a sliding manner.
7. The production equipment of the metal lithium battery pole piece is characterized in that the cutting die mechanism (22) comprises a movable plate (221) and a cutting die, the movable plate (221) is connected to the output end of the driving mechanism (21), and the cutting die is connected to one side of the movable plate (221) far away from the driving mechanism (21).
8. The production equipment of the metal lithium battery pole piece according to claim 7, wherein the guiding mechanism (24) further comprises a linear bearing (243), the linear bearing (243) is installed on the movable plate (221), and the linear bearing (243) is slidably sleeved on the guiding column (241).
9. The production equipment of the metal lithium battery pole piece according to claim 1, wherein the feeding assembly (1) comprises a feeding tray (11) and a supporting member (12), the lithium strip (101) with the supporting film (100) is wound on the feeding tray (11), the feeding tray (11) is rotatably connected to the supporting member (12), and the supporting member (12) is connected to the machine body.
10. The production equipment of the pole piece of the lithium metal battery as claimed in claim 9, wherein the feeding assembly (1) further comprises a reinforcing rib (13), and the reinforcing rib (13) is connected to the supporting member (12) and the machine body.
CN202020922647.0U 2020-05-27 2020-05-27 Metal lithium battery pole piece production equipment Active CN212598217U (en)

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Application Number Priority Date Filing Date Title
CN202020922647.0U CN212598217U (en) 2020-05-27 2020-05-27 Metal lithium battery pole piece production equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113020399A (en) * 2021-03-29 2021-06-25 蜂巢能源科技有限公司 Pole piece die cutting system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113020399A (en) * 2021-03-29 2021-06-25 蜂巢能源科技有限公司 Pole piece die cutting system and method

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