CN218114492U - Prevent lithium battery diaphragm material feeding unit of fold - Google Patents
Prevent lithium battery diaphragm material feeding unit of fold Download PDFInfo
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- CN218114492U CN218114492U CN202221611605.0U CN202221611605U CN218114492U CN 218114492 U CN218114492 U CN 218114492U CN 202221611605 U CN202221611605 U CN 202221611605U CN 218114492 U CN218114492 U CN 218114492U
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 title claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims abstract description 140
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000013016 damping Methods 0.000 claims description 20
- 230000037303 wrinkles Effects 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 19
- 230000003068 static effect Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 26
- 239000012528 membrane Substances 0.000 description 23
- 238000004804 winding Methods 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 15
- 238000007664 blowing Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a prevent lithium battery diaphragm material feeding unit of fold, including feeding mechanism, feeding mechanism is including flat piece of exhibition and absorption roller, flat piece of exhibition and absorption roller interval arrangement. The utility model provides a prevent lithium battery diaphragm material feeding unit of fold through setting up interval arrangement's absorption roller and nip roll, gets rid of the fold part of diaphragm in the transportation, the restraint power that the absorption roller produced the adsorption of diaphragm for keep relative static between diaphragm and the absorption roller, can keep the roughness of diaphragm always in the pay-off in-process, and just remove fold processing to the product at the pay-off in-process, need not to add other equipment, improvement work efficiency when reduce cost.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell production technique and specifically relates to a prevent lithium battery diaphragm material feeding unit of fold.
Background
Under the background of rapid development of modern technologies, lithium batteries are gradually becoming a mainstream trend in the field of battery production by virtue of the advantages of environmental protection, high energy ratio, long service life and the like.
In the production and manufacturing of lithium batteries, a winding process is a common mainstream process, and in the processing and production process of the lithium batteries, a winding machine is usually used for winding a positive plate, a negative plate and a diaphragm to manufacture a bare cell. In the process, due to the characteristics of light weight, low strength and the like, the diaphragm is easy to wrinkle in the conveying process, and the wrinkles have great influence on the winding process, so that the wrinkles on the diaphragm need to be reduced as much as possible before winding in the existing production process, and the production quality of the battery cell is improved.
For example, chinese patent publication No. CN107615548B discloses a "winding device" including a winding device having a winding mechanism for winding a separator, a positive electrode, and a negative electrode around a winding core. The winding device is configured to include a winding mechanism, a chamber in which the winding mechanism is housed, and a vacuum pump for sucking air in the chamber, and can easily and quickly perform an operation of injecting an electrolyte between a separator and a positive electrode and between a separator and a negative electrode for manufacturing a battery or a capacitor, and can prevent the separator and the like from being wrinkled. But make the structure of generating vacuum environment complicated, the cost is great in whole take-up device in actual production and application, and can't guarantee that the diaphragm is in the flat condition before the coiling, probably leads to the diaphragm to produce comparatively serious folding fold, need carry out the evacuation again after depositing, taking the product, efficiency is lower.
Disclosure of Invention
Prevent to produce the structure of fold among the prior art who mentions in the background art complicacy, can't guarantee to be in the temper before convoluteing, and need the problem of evacuation again after changing the product, the utility model provides a prevent lithium cell diaphragm material feeding unit of fold guarantees the roughness of product before convoluteing through setting up interval arrangement's absorption roller and nip roll to just remove fold processing to the product at the pay-off in-process, need not to add other equipment, improvement work efficiency when reduce cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a prevent lithium battery diaphragm material feeding unit of fold, includes feeding mechanism, feeding mechanism is including flat piece of exhibition and adsorption roller, flat piece of exhibition and adsorption roller interval arrangement, the feeding mechanism both ends are equipped with feed inlet and discharge gate, feeding mechanism is close to the feed inlet and is provided with flat piece of exhibition, feeding mechanism is close to the discharge gate and is provided with the adsorption roller. The flattening pieces and the adsorption rollers which are arranged at intervals in the feeding mechanism can convey the lithium battery diaphragm in a wrinkle-preventing manner, wherein the flattening pieces flatten the diaphragm to remove wrinkles and then enter the adsorption roller, the adsorption roller adsorbs the diaphragm to move, so that the diaphragm has a good transition effect in the transportation process, the flattening effect of the flattening pieces can be kept not to disappear in long-distance transportation, and the problem of generating wrinkles again is avoided; the adsorption roller has a good adsorption constraint function, the adsorption roller is attached to the diaphragm in the conveying process of the diaphragm, and the conveying relative to the diaphragm is realized, so that the flatness of the diaphragm is kept, the deviation of the diaphragm on the adsorption roller is constrained, and the influence on the flatness and the structure of the diaphragm due to the relative sliding between the roller and the diaphragm is avoided; the flattening piece arranged at the feeding port can ensure that the folds existing on the diaphragm can be flattened immediately after the diaphragm enters the feeding mechanism, so that the diaphragm can have good flatness in the subsequent conveying link; the adsorption roller arranged close to the discharge port can convey the diaphragm flattened for many times to the winding device smoothly, and because the adsorption effect of the adsorption roller is strong, before the diaphragm is separated from the adsorption roller, the diaphragm and the adsorption roller are always kept in a static state, so that the transition conveying in the middle is favorably reduced, and the risk that the diaphragm generates wrinkles again is reduced.
Preferably, the adsorption roller comprises an adsorption outer layer and a vacuum inner cavity, the adsorption outer layer is provided with adsorption holes, and the vacuum inner cavity is communicated with the adsorption outer layer through the adsorption holes. The vacuum inner cavity is arranged in the adsorption roller and connected with the adsorption holes in the adsorption outer layer, and the adsorption holes can be independently controlled by the vacuum inner cavity according to production requirements, so that when the diaphragm is separated from the adsorption roller, adsorption force cannot be generated to influence the transportation of the diaphragm, and unnecessary folds or folds of the diaphragm are avoided; the adsorption diameter of the adsorption hole needs to be controlled within 4mm, the optimal range is 1-2mm, if the diameter of the adsorption hole is too large, the adsorption deformation of the diaphragm can be caused, the subsequent processing is influenced, and the diaphragm is easy to vibrate after the adsorption force is lost due to the too large adsorption hole, so that wrinkles are formed.
Preferably, the suction holes of the suction roller are arranged in a double spiral. Set up to the adsorption hole of two helical arrangements and can fix the restraint to absorbent diaphragm better, increase the traction force to the diaphragm, and the adsorption hole of two helical arrangements can carry out the side direction expansion rather than adsorbing the diaphragm of laminating, the planarization on diaphragm surface has been guaranteed well, can only set up two helical adsorption holes on the adsorption roll that is close to the discharge gate in process of production, other adsorption rolls can only set up single helical adsorption hole, single helical adsorption hole is because the distance between each hole is more even, the adsorption hole of contrast conventional arrangement also possesses better fixed constraint effect, and the exhibition flat effect then carries out the function by flat piece of exhibition and realizes, carry out last side direction exhibition flat work through the adsorption roll that possesses two helical adsorption holes before finally getting into take-up device.
Preferably, the orifice of the adsorption hole, which is far away from the vacuum cavity, is provided with a round angle. Set up the fillet on adsorbing the hole, can avoid adsorbing the border department in hole too sharp and produce the fish tail to the diaphragm to influence processing production, wherein the fillet also can set up to the chamfer or similar structures such as cambered surface that can smooth transition, the safety of all protections diaphragm is carried.
Preferably, a damping thin layer is arranged on the outer surface of the adsorption outer layer far away from the vacuum inner cavity. Be equipped with the damping thin layer on adsorbing outer surface, the damping thin layer has great damping effect, and the surface is smooth, no burr, can cooperate the adsorption roller to laminate the diaphragm in damping thin layer top better, when the diaphragm laminating is on the damping thin layer, the damping surface that can utilize the damping thin layer provides better constraint force for the diaphragm, make the diaphragm more difficult emergence remove, and, because the reinforcing of constraint force, the diaphragm is when carrying between a plurality of rollers, the tension of diaphragm also can increase, tensile increase is favorable to reducing the production of fold among the transportation process, and can realize the flat effect of exhibition of flat piece well.
Preferably, the flattening member is a flattening roller, and the wrap angle of the diaphragm on the flattening roller is alpha, and is less than or equal to 30 degrees and less than or equal to alpha. The flattening piece needs to have the flattening function of fold on the diaphragm, including but not limited to the nip roll, the side blast apparatus, wherein when using the nip roll, can better cooperate the adsorption roller to carry out work, wherein, the wrap angle of diaphragm on the nip roll is alpha, alpha is less than or equal to 30 degrees, can guarantee like this that diaphragm and nip roll fully laminate, enlarge the contact time of diaphragm and nip roll, the nip roll can have a good flat effect of exhibition, improve the operating mass of nip roll, the flattening effect of having avoided the diaphragm is not enough.
Preferably, the wrap angle of the diaphragm on the adsorption roller is beta, and the wrap angle is more than or equal to 15 degrees and less than or equal to 75 degrees. In order to realize the adsorption and bonding effects of the adsorption roll, the wrap angle between the diaphragm and the adsorption roll is preferably set to be 15-75 degrees, the preferred set angle is 30-75 degrees, if the wrap angle is too large, the diaphragm is easy to wrinkle, the adsorption area is large, the tension of the diaphragm on the left side and the right side of the adsorption roll is not uniform, the integral wrinkle removing function of the feeding device is influenced, and if the wrap angle is too small, the problems that the adsorption area of the adsorption roll is too small and the adsorption effect is insufficient are caused.
The beneficial effects of the utility model are as follows: (1) The flattening pieces and the adsorption rollers which are arranged at intervals can be used for well flattening the product and keeping the product flat for winding; (2) The adsorption roller provides a constraint force for the product, so that the product and the adsorption roller are ensured to be static, friction is avoided, a product quality meter is ensured, and the flattening effect is not influenced; (3) The product generates larger tension due to the constraint force of the adsorption roller, and the tension can prevent the product from generating wrinkles in the conveying process and is beneficial to the flattening work of the flattening roller; (4) The damping thin layer can be matched with the adsorption roller to enable a product to be adsorbed on the adsorption roller better, static friction of the adsorption roller to the product is increased, better constraint force and tension are obtained, and the whole feeding device obtains a better wrinkle removing effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a partial structural view at a in fig. 1.
Fig. 4 is a partial structural view at B in fig. 3.
Fig. 5 is a plane development view of the single spiral arrangement of the adsorption holes of the present invention.
Fig. 6 is a plane development view of the double helix arrangement of the adsorption holes in the present invention.
Fig. 7 is a side view of embodiment 2 of the present invention.
In the figure: 1. the device comprises a feeding mechanism, 2, an adsorption roller, 21, an adsorption outer layer, 211, an adsorption hole, 212, a fillet, 22, a vacuum inner cavity, 23, a damping thin layer, 201, a first adsorption roller, 202, a second adsorption roller, 3, a flattening roller, 31, a first flattening roller, 32, a second flattening roller, 4, a feeding hole, 5, a discharging hole, 6, a diaphragm unreeling mechanism, 7, a tension adjusting mechanism, 8, an electric core reeling needle, 9, a side blowing device, 91, a first side blowing device, 92 and a second side blowing device.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and 2, a prevent lithium battery diaphragm material feeding unit of fold, including feeding mechanism 1, feeding mechanism 1 includes flat piece of exhibition and adsorption roller 2, flat piece is nip roll 3 in this embodiment, nip roll 3 and adsorption roller 2 interval arrangement, feeding mechanism 1 both ends are equipped with feed inlet 4 and discharge gate 5, feeding mechanism 1 is close to feed inlet 4 and is provided with nip roll 3, feeding mechanism 1 is close to discharge gate 5 and is provided with adsorption roller 2, wherein be close to feed inlet 4 in nip roll 3 be first nip roll 31, be close to discharge gate 5 be second nip roll 32, be close to feed inlet 4 in adsorption roller 2 and be first adsorption roller 201, be close to discharge gate 5 be second adsorption roller 202.
The flattening rollers 3 and the adsorption rollers 2 which are arranged at intervals in the feeding mechanism 1 can convey lithium battery diaphragms in a wrinkle-preventing manner, wherein the flattening rollers 3 flatten the diaphragms to remove wrinkles and then enter the adsorption rollers 2, and the adsorption rollers 2 adsorb the diaphragms to move, so that the diaphragms have good transition effect in the transportation process, the flattening effect of the flattening rollers 3 cannot disappear in long-distance transportation, and the problem of generating wrinkles again is avoided; the adsorption roller 2 has a good adsorption constraint function, the membrane is attached to the membrane in the membrane conveying process, and the membrane is conveyed in a relatively static mode, so that the flatness of the membrane is kept favorably, the offset of the membrane on the adsorption roller 2 is constrained, and the influence on the flatness and the structure of the membrane due to relative sliding between the roller and the membrane is avoided. The first flattening roller 31 arranged at the feed inlet 4 can ensure that the folds existing on the diaphragm can be immediately flattened after the diaphragm enters the feeding mechanism 1, so that the diaphragm can have good flatness in the subsequent conveying link; the second adsorption roller 202 arranged close to the discharge port 5 can smoothly convey the membrane which is flattened for multiple times to the electric core winding needle 8, and because the adsorption effect of the adsorption roller 2 is strong, before the membrane is separated from the adsorption roller 2, the membrane and the adsorption roller 2 are always kept in a static state, thereby being beneficial to reducing the formation of intermediate transition conveying and reducing the risk of generating wrinkles again on the membrane.
As shown in fig. 3, 4, 5, and 6, the adsorption roller 2 includes an outer adsorption layer 21 and a vacuum inner cavity 22, the outer adsorption layer 21 is provided with adsorption holes 211, the vacuum inner cavity 22 is communicated with the outer adsorption layer 21 through the adsorption holes 211, the adsorption holes 211 of the second adsorption roller 202 are arranged in a double helix manner, the adsorption holes 211 of the first adsorption roller 201 are arranged in a single helix manner, and a circular bead 212 is provided at an orifice of the adsorption holes 211 away from the vacuum inner cavity 22.
The vacuum inner cavity 22 is formed in the adsorption roller 2, the vacuum inner cavity 22 is connected with the adsorption holes 211 on the adsorption outer layer 21, and the adsorption holes 211 are independently controlled by the vacuum inner cavity 22, so that when the diaphragm is separated from the adsorption roller 2, adsorption force cannot be generated to influence the transportation of the diaphragm, and unnecessary folds or folds of the diaphragm are avoided; adsorption hole 211's absorption diameter control all can between 1-2mm, if adsorb hole 211 diameter and too big then can cause the diaphragm to adsorb the deformation, influence subsequent processing, and too big absorption hole 211 can lead to the diaphragm easily to produce great vibration after losing the adsorption affinity to form the fold.
Set up to two spiral arrangement's absorption hole 211 can fix the restraint to absorbent diaphragm better, increase the traction force to the diaphragm, and two spiral arrangement's absorption hole 211 can carry out the side direction expansion rather than the diaphragm that adsorbs the laminating, the planarization on diaphragm surface has been guaranteed well, first absorption roller 201 sets up absorption hole 211 and arranges for single spiral, single spiral arrangement's absorption hole 211 is because the distance between each hole is more even, the absorption hole 211 of contrast conventional range also possesses better fixed restraint effect, the exhibition flat effect then carries out the function by flattening roller 3 and realizes, carry out last side direction exhibition flat work through the absorption roller 2 that possesses two spiral absorption hole 211 before finally getting into take-up device. Set up fillet 212 on adsorbing hole 211, can avoid adsorbing hole 211's border department too sharp and produce the fish tail to the diaphragm to influence processing production.
As shown in fig. 1 and 4, the outer surface of the adsorption outer layer 21 away from the vacuum inner cavity 22 is provided with a damping thin layer 23.
Be equipped with damping thin layer 23 on adsorbing outer 21's surface, damping thin layer 23 has great damping effect, and the surface is smooth, no burr, can cooperate adsorption roller 2 to laminate the diaphragm in damping thin layer 23 top better, when the diaphragm laminating is on damping thin layer 23, the damping surface that can utilize damping thin layer 23 provides better constraining force for the diaphragm, make the diaphragm more difficult emergence remove, and, because the reinforcing of constraining force, the diaphragm is when carrying between a plurality of rollers, the tension of diaphragm also can increase, tensile increase is favorable to reducing the production of fold among the transportation process, and can realize flattening roller 3's flat effect well.
As shown in fig. 1 and 2, the wrap angle of the separator on the flattening roll 3 is α,30 ° ≦ α.
The wrap angle scope of diaphragm on nip roll 3 be greater than 30 can, can guarantee like this that diaphragm and nip roll 3 fully laminate, enlarge diaphragm and nip roll 3's contact time, nip roll 3 can have a good flat effect of exhibition, improve nip roll 3's operating quality, has avoided the flat effect of exhibition of diaphragm not enough.
As shown in fig. 1 and 2, the wrap angle of the diaphragm on the adsorption roller 2 is beta, and the beta is greater than or equal to 30 degrees and less than or equal to 75 degrees.
In order to realize the adsorption and attachment effects of the adsorption roller 2, the wrap angle can be set at an angle of 30-75 degrees, if the wrap angle is too large, the diaphragm can be easily wrinkled, because the adsorption area is large, the tension of the diaphragms on the left side and the right side of the adsorption roller 2 is not uniform, the overall wrinkle removing function of the feeding device is influenced, and if the wrap angle is too small, the adsorption area of the adsorption roller 2 is too small, and the adsorption effect is insufficient.
The utility model discloses in prevent lithium battery diaphragm material feeding unit of fold assembly and working process as follows: the membrane unwinding mechanism 6 is used for storing a membrane to be wound, before winding, the membrane can sequentially pass through the tension adjusting mechanism 7 to adjust the tension of the membrane, then the membrane enters the feeding mechanism 1 to be wound, in the feeding mechanism 1, a first flattening roller 31, a first adsorption roller 201, a second flattening roller 32 and a second adsorption roller 202 are sequentially arranged along the direction of a discharge port 5 from a feed port 4, the membrane is flattened when passing through the first flattening roller 31, then the membrane keeps the flatness of the membrane through the adsorption effect of adsorption holes 211 which are arranged on a single spiral of the first adsorption roller 201, and the membrane randomly enters the second flattening roller 32 to be flattened for the second time, so that an ideal flattening effect cannot be achieved before, last through the two spiral arrangement's on the second adsorption roll 202 absorption hole 211 keep the roughness, and two spiral arrangement's absorption hole 211 still can provide a horizontal expansion force for the diaphragm, further guarantee the diaphragm roughness, be provided with damping film 23 on two absorption rolls 2, can strengthen the constraining force to the diaphragm, increase the tension between the diaphragm, be favorable to the flattening roller 3 to go on the exhibition, wherein be provided with fillet 212 on the absorption hole 211, guarantee that absorption roll 2 can not fish tail diaphragm in the adsorption process, and each absorption hole 211 passes through vacuum cavity 22 independent control vacuum source, avoid appearing the diaphragm because adsorb inhomogeneous when passing through absorption hole 211 and produce the problem of fold, the diaphragm that leaves discharge gate 5 at last enters into and winds in the electric core book needle 8.
Example 2:
as shown in fig. 7, the difference between this embodiment and embodiment 1 is that the flattening member is provided with a side blowing device 9 instead of the flattening roller 3, and therefore, in this embodiment, the feeding mechanism 1 is provided with a first side blowing device 91, a first adsorption roller 201, a second side blowing device 92, and a second adsorption roller 202 in sequence from the feeding port 4 along the direction of the discharging port 5, and the membrane is unfolded towards both sides by the wind blown out from the side blowing device 9 to eliminate wrinkles on the membrane.
In addition to the above embodiments, the technical features of the present invention can be re-selected and combined within the scope of the claims and the specification of the present invention to constitute new embodiments, which can be realized by those skilled in the art without any creative work, therefore, the embodiments of the present invention not described in detail should also be regarded as concrete embodiments of the present invention and are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a prevent lithium battery diaphragm material feeding unit of fold, includes feeding mechanism (1), its characterized in that, feeding mechanism (1) is including flat piece of exhibition and adsorption roller (2), flat piece of exhibition and adsorption roller (2) interval arrangement, feeding mechanism (1) both ends are equipped with feed inlet (4) and discharge gate (5), feeding mechanism (1) is close to feed inlet (4) and is provided with flat piece of exhibition, feeding mechanism (1) is close to discharge gate (5) and is provided with adsorption roller (2).
2. The wrinkle-preventing lithium battery diaphragm feeding device according to claim 1, wherein the adsorption roller (2) comprises an adsorption outer layer (21) and a vacuum inner cavity (22), the adsorption outer layer (21) is provided with adsorption holes (211), and the vacuum inner cavity (22) is communicated with the adsorption outer layer (21) through the adsorption holes (211).
3. The lithium battery diaphragm feeding device capable of preventing wrinkles as claimed in claim 2, wherein the adsorption holes (211) of the adsorption roller (2) are arranged in a double helix.
4. The lithium battery diaphragm feeding device capable of preventing wrinkles as claimed in claim 2, wherein the adsorption holes (211) are provided with rounded corners (212) away from the opening of the vacuum inner cavity (22).
5. The wrinkle-proof lithium battery diaphragm feeding device as claimed in claim 2, characterized in that the outer surface of the adsorption outer layer (21) far away from the vacuum cavity (22) is provided with a damping thin layer (23).
6. The feeding device for the wrinkle-proof lithium battery diaphragm as claimed in any one of claims 1-5, characterized in that the flattening member is a flattening roller (3), and the wrap angle of the diaphragm on the flattening roller (3) is alpha, and is 30 degrees and less than alpha.
7. The lithium battery diaphragm feeding device capable of preventing wrinkles as claimed in any one of claims 1-5, characterized in that, the wrap angle of the diaphragm on the adsorption roller (2) is β,15 ° ≦ β ≦ 75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221611605.0U CN218114492U (en) | 2022-06-23 | 2022-06-23 | Prevent lithium battery diaphragm material feeding unit of fold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221611605.0U CN218114492U (en) | 2022-06-23 | 2022-06-23 | Prevent lithium battery diaphragm material feeding unit of fold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218114492U true CN218114492U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221611605.0U Active CN218114492U (en) | 2022-06-23 | 2022-06-23 | Prevent lithium battery diaphragm material feeding unit of fold |
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| Country | Link |
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| CN (1) | CN218114492U (en) |
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2022
- 2022-06-23 CN CN202221611605.0U patent/CN218114492U/en active Active
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Effective date of registration: 20240926 Address after: No. 1000-101, Dongma South Road, Dongqian Street, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province 313000 Patentee after: Huzhou Yaoning Solid-state Battery Research Institute Co.,Ltd. Country or region after: China Address before: 414000 5th floor, scientific research building, Yueyang modern equipment manufacturing industrial park, Muli port, Yueyang Economic and Technological Development Zone, Yueyang City, Hunan Province Patentee before: Yueyang yaoning New Energy Technology Co.,Ltd. Country or region before: China |