CN105870381B - Improve the heat shrink process of diaphragm rippled edge and its is heat-shrinked device - Google Patents
Improve the heat shrink process of diaphragm rippled edge and its is heat-shrinked device Download PDFInfo
- Publication number
- CN105870381B CN105870381B CN201610283449.2A CN201610283449A CN105870381B CN 105870381 B CN105870381 B CN 105870381B CN 201610283449 A CN201610283449 A CN 201610283449A CN 105870381 B CN105870381 B CN 105870381B
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- rewind roll
- buffer bar
- rippled edge
- improving
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- 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 present invention provides a kind of heat shrink process improving diaphragm rippled edge, includes the following steps：(1) prepare rewind roll, in the multiple contractile buffer bars of the outer surface spaced set of rewind roll, and each buffer bar is parallel with the axial direction of rewind roll；(2) diaphragm is wound into the rewind roll equipped with buffer bar；(3) it is toasted under the conditions of certain temperature to winding septate rewind roll, and is kept for certain time；(4) diaphragm after baking is taken out, is cooled down at normal temperatures；(5) membrane surface after the cooling period coats certain thickness slurry.Beneficial effects of the present invention are：Diaphragm is set to become uniform, the bad phenomenon of wave occurs after diaphragm film in reduction, is reduced after so that diaphragm is cut into small item and the phenomenon that radian, dimension ultra-specification occurs, improve the quality product rate of diaphragm, rationally utilize resources of production, reduces waste.
Description
Technical field
The present invention relates to lithium battery manufacturing technology, more particularly to a kind of heat shrink process and its heat improving isolation rippled edge
Constriction device.
Background technology
Current domestic diaphragm during the manufacturing because diaphragm draws high uneven, tension force failure cause finished product every
It is bad to occur the serious wave of diaphragm after film shipment, it is bad to occur wave after diaphragm film, influences to go out after diaphragm cuts into small item
Existing radian, dimension ultra-specification, eventually leading to diaphragm can not use, and result in waste of resources, and increase the production cost of enterprise.
Invention content
The present invention in view of the existing deficiencies of the prior art, provides a kind of heat shrink process and its heat improving isolation rippled edge
Constriction device can make diaphragm become uniform, and the bad phenomenon of wave occurs after diaphragm film in reduction, so that diaphragm is cut into small
It is reduced after item and the phenomenon that radian, dimension ultra-specification occurs, improve the quality product rate of diaphragm, rationally utilize resources of production, reduce waste.
To achieve the above object, the present invention is using following technical solution：
A kind of heat shrink process improving diaphragm rippled edge, includes the following steps：
(1) prepare rewind roll, multiple in the outer surface spaced set of rewind roll can be the diaphragm being wrapped in rewind roll
The buffer bar of shrink space is given, and each buffer bar is parallel with the axial direction of rewind roll；
(2) diaphragm is wound into the rewind roll equipped with buffer bar；
(3) it is toasted under the conditions of certain temperature to winding septate rewind roll, and is kept for certain time；
(4) diaphragm after baking is taken out, is cooled down at normal temperatures；
(5) membrane surface after the cooling period coats certain thickness slurry.
As a preferred embodiment, the buffer bar protrudes from the outer surface of rewind roll.
As a preferred embodiment, the length of the buffer bar is more than the width of diaphragm.
As a preferred embodiment, when baking, temperature is set as 40~60 DEG C, and keeps 20~30h.
As a preferred embodiment, when baking, temperature is set as 50 DEG C, and keeps for 24 hours.
A kind of thermal contraction device improving diaphragm rippled edge, including rewind roll and for being dried to the diaphragm in rewind roll
Roasting insulating box, the rewind roll are equipped with multiple buffer bars that shrink space can be given for the diaphragm being wrapped in rewind roll,
The multiple buffer bar is equidistantly set to the outer surface of rewind roll, and parallel with the axial direction of rewind roll；When work, rewind roll is set
In in insulating box, diaphragm is wound in the outside of the buffer bar on rewind roll outer surface.
As a preferred embodiment, the buffer bar protrudes from the outer surface of rewind roll.
As a preferred embodiment, the length of the buffer bar is more than the width of diaphragm.
As a preferred embodiment, the thermal contraction device for improving diaphragm rippled edge further includes baking rack, the baking
Frame is equipped with shaft corresponding with the axis hole in rewind roll, and when work, the baking rack is set in insulating box, the rewind roll set
Outside loaded on the shaft on baking rack.
As a preferred embodiment, the baking rack is equipped with the more shafts stretched out outwardly.
Operation principle：Using diaphragm heat shrinkability characteristic, rippled edge position is equivalent to long side, and non-wave border region is short side,
Long side is smaller than short side winding backward pull, and in baking process, long side is easier to shrink than short side, to make diaphragm become uniform.
And the buffer bar in rewind roll can be the diaphragm being wrapped in rewind roll gives shrink space.
The present invention has clear advantage and advantageous effect compared with prior art, specifically, by rewind roll
The multiple contractile buffer bars of outer surface spaced set, and toasted to winding septate rewind roll, after its cooling
Again to membrane surface coating slurry, which makes diaphragm become uniform, and the bad phenomenon of wave occurs after diaphragm film in reduction,
It is reduced after so that diaphragm is cut into small item and the phenomenon that radian, dimension ultra-specification occurs, improve the quality product rate of diaphragm, rationally utilize production
Resource reduces waste；This thermal contraction device further includes baking rack, and the baking rack is equipped with a plurality of axis hole pair in rewind roll
The shaft answered, multireel diaphragm can once be toasted simultaneously by so toasting, to improve production efficiency.
More clearly to illustrate structure feature, technological means and its specific purposes reached and function of the present invention, under
In conjunction with attached drawing and specific embodiment, invention is further described in detail in face：
Description of the drawings
Fig. 1 is the structural schematic diagram of the rewind roll of the present invention；
Fig. 2 is that the rewind roll of the present invention is wound with diaphragm status diagram；
Fig. 3 is the rewind roll baking status diagram of the present invention.
Description of drawing identification：
1- rewind rolls, 2- buffer bars, 3- diaphragms, 4- insulating boxs, 5- heat air port, 6- baking racks, 7- shafts.
Specific implementation mode
A kind of heat shrink process improving diaphragm rippled edge, includes the following steps：
(1) prepare rewind roll, multiple in the outer surface spaced set of rewind roll can be the diaphragm being wrapped in rewind roll
The buffer bar of shrink space is given, and each buffer bar is parallel with the axial direction of rewind roll, the buffer bar protrudes from rewind roll
Outer surface.The length of the buffer bar is more than the width of diaphragm；
(2) diaphragm is wound into the rewind roll 1 equipped with buffer bar；
(3) it is toasted under the conditions of certain temperature to winding septate rewind roll, and is kept for certain time, toasted
When, temperature is set as 40~60 DEG C, and keeps 20~30h, it is preferable that when baking, temperature is set as 50 DEG C, and keeps for 24 hours；
(4) diaphragm after baking is taken out, is cooled down at normal temperatures；
(5) membrane surface after the cooling period coats certain thickness slurry, the diaphragm after being improved.
As shown in Figs. 1-3, a kind of thermal contraction device improving diaphragm rippled edge, including rewind roll 1 and for rewind roll 1
On the insulating box 4 that is toasted of diaphragm 3, the rewind roll 1 is equipped with and multiple can be given for the diaphragm being wrapped in rewind roll
The buffer bar 2 of shrink space, the multiple buffer bar 2 equidistantly be set to rewind roll 1 outer surface, and with the axis of rewind roll 1
To parallel；When work, rewind roll 1 is set in insulating box 4, and diaphragm 3 is wound in the outside of the buffer bar 2 on 1 outer surface of rewind roll.
The buffer bar 2 protrudes from the outer surface of rewind roll 1.The length of the buffer bar 2 is more than the width of diaphragm 3.The insulating box 4
It is interior to be equipped with multiple heating air ports 5.
As shown in figure 3, the thermal contraction device for improving diaphragm rippled edge further includes baking rack 6, set on the baking rack 6
There are the more shafts stretched out outwardly 7.When work, the baking rack 6 is set in insulating box 4, and the rewind roll 1 is set in baking rack
Outside shaft 7 on 6.
Operation principle：Using diaphragm heat shrinkability characteristic, rippled edge position is equivalent to long side, and non-wave border region is short side,
Long side is smaller than short side winding backward pull, and in baking process, long side is easier to shrink than short side, to make diaphragm become uniform.
And the buffer bar in rewind roll can be the diaphragm being wrapped in rewind roll gives shrink space.
The above described is only a preferred embodiment of the present invention, be not intended to limit the invention, therefore it is every according to this hair
Bright technology is practical to above example any modification, equivalent replacement, improvement and so on, still falls within technical solution of the present invention
In the range of.
Claims (10)
1. a kind of heat shrink process improving diaphragm rippled edge, it is characterised in that include the following steps：
(1) prepare rewind roll, multiple in the outer surface spaced set of rewind roll can be that the diaphragm being wrapped in rewind roll is given
The buffer bar of shrink space, and each buffer bar is parallel with the axial direction of rewind roll；
(2) diaphragm is wound into the rewind roll equipped with buffer bar；
(3) it is toasted under the conditions of certain temperature to winding septate rewind roll, and is kept for certain time；
(4) diaphragm after baking is taken out, is cooled down at normal temperatures；
(5) membrane surface after the cooling period coats certain thickness slurry.
2. the heat shrink process according to claim 1 for improving diaphragm rippled edge, it is characterised in that：The buffer bar protrusion
In the outer surface of rewind roll.
3. the heat shrink process according to claim 2 for improving diaphragm rippled edge, it is characterised in that：The length of the buffer bar
Width of the degree more than diaphragm.
4. the heat shrink process according to claim 1 for improving diaphragm rippled edge, it is characterised in that：When baking, temperature is set
It is set to 40~60 DEG C, and keeps 20~30h.
5. the heat shrink process according to claim 4 for improving diaphragm rippled edge, it is characterised in that：When baking, temperature is set
It is set to 50 DEG C, and keeps for 24 hours.
6. a kind of thermal contraction device improving diaphragm rippled edge, it is characterised in that：Including rewind roll and for in rewind roll
The insulating box that diaphragm is toasted, it can be that the diaphragm being wrapped in rewind roll give shrink space that the rewind roll, which is equipped with multiple,
Buffer bar, the multiple buffer bar is equidistantly set to the outer surface of rewind roll, and parallel with the axial direction of rewind roll；Work
When, rewind roll is set in insulating box, and diaphragm is wound in the outside of the buffer bar on rewind roll outer surface.
7. the thermal contraction device according to claim 6 for improving diaphragm rippled edge, it is characterised in that：The buffer bar protrusion
In the outer surface of rewind roll.
8. the thermal contraction device according to claim 6 for improving diaphragm rippled edge, it is characterised in that：The length of the buffer bar
Width of the degree more than diaphragm.
9. improving the thermal contraction device of diaphragm rippled edge according to claim 6-8 any one of them, it is characterised in that：Further include
Baking rack, the baking rack is equipped with shaft corresponding with the axis hole in rewind roll, and when work, the baking rack is set to insulating box
Interior, the rewind roll is set in outside the shaft on baking rack.
10. the thermal contraction device according to claim 9 for improving diaphragm rippled edge, it is characterised in that：On the baking rack
The shaft stretched out outwardly equipped with more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283449.2A CN105870381B (en) | 2016-04-29 | 2016-04-29 | Improve the heat shrink process of diaphragm rippled edge and its is heat-shrinked device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283449.2A CN105870381B (en) | 2016-04-29 | 2016-04-29 | Improve the heat shrink process of diaphragm rippled edge and its is heat-shrinked device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105870381A CN105870381A (en) | 2016-08-17 |
| CN105870381B true CN105870381B (en) | 2018-08-17 |
Family
ID=56630158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610283449.2A Active CN105870381B (en) | 2016-04-29 | 2016-04-29 | Improve the heat shrink process of diaphragm rippled edge and its is heat-shrinked device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105870381B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112751135B (en) * | 2019-10-29 | 2022-09-27 | 珠海恩捷新材料科技有限公司 | Aramid fiber diaphragm |
| CN113067093B (en) * | 2019-12-12 | 2022-08-26 | 珠海恩捷新材料科技有限公司 | Point-like coating diaphragm |
| CN111606096A (en) * | 2020-05-29 | 2020-09-01 | 湖南中锂新材料有限公司 | Winding process of lithium battery diaphragm |
| CN112850370B (en) * | 2020-12-31 | 2023-09-22 | 上海恩捷新材料科技有限公司 | Lithium battery diaphragm winding device and process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286553A (en) * | 2008-05-27 | 2008-10-15 | 佛山塑料集团股份有限公司 | A method for improving arch amount of lithium ion cell |
| CN101345295A (en) * | 2008-03-07 | 2009-01-14 | 惠州亿纬锂能股份有限公司 | Production method of septum for lithium ion battery |
| CN204307779U (en) * | 2014-12-10 | 2015-05-06 | 天津力神电池股份有限公司 | The glue spreading apparatus of lithium ion battery separator |
| CN205008182U (en) * | 2015-07-03 | 2016-02-03 | 惠州佳合能新能源科技有限公司 | A improved generation coating unit for improving unfamiliar rippled edge |
| CN205595395U (en) * | 2016-04-29 | 2016-09-21 | 宁德卓高新材料科技有限公司 | Improve hot constriction device of unfamiliar rippled edge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10403873B2 (en) * | 2013-10-16 | 2019-09-03 | Sumitomo Chemical Company, Limited | Gravure roll, method of fabricating a separator, and separator |
-
2016
- 2016-04-29 CN CN201610283449.2A patent/CN105870381B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345295A (en) * | 2008-03-07 | 2009-01-14 | 惠州亿纬锂能股份有限公司 | Production method of septum for lithium ion battery |
| CN101286553A (en) * | 2008-05-27 | 2008-10-15 | 佛山塑料集团股份有限公司 | A method for improving arch amount of lithium ion cell |
| CN204307779U (en) * | 2014-12-10 | 2015-05-06 | 天津力神电池股份有限公司 | The glue spreading apparatus of lithium ion battery separator |
| CN205008182U (en) * | 2015-07-03 | 2016-02-03 | 惠州佳合能新能源科技有限公司 | A improved generation coating unit for improving unfamiliar rippled edge |
| CN205595395U (en) * | 2016-04-29 | 2016-09-21 | 宁德卓高新材料科技有限公司 | Improve hot constriction device of unfamiliar rippled edge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105870381A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105870381B (en) | Improve the heat shrink process of diaphragm rippled edge and its is heat-shrinked device | |
| CN104012667A (en) | Soybean tendon production process and equipment | |
| CN103398558A (en) | Full-automatic combining module new energy material vacuum baking method and vacuum baking line | |
| US11298739B2 (en) | Method for manufacturing iron core | |
| CN203432246U (en) | Full-automatic composite module new energy material vacuum baking wire | |
| CN211441485U (en) | Compound all-in-one of tailorring | |
| CN210866362U (en) | Membrane electrode coating device | |
| CN205595395U (en) | Improve hot constriction device of unfamiliar rippled edge | |
| CN105576186B (en) | It is related to the control system of battery pole piece baking | |
| CN104409186B (en) | A kind of preparation technology of military project insulating cylinder | |
| CN204905370U (en) | Cylinder electricity core pole piece divides strip rolling machine | |
| CN203814475U (en) | Dough sheet cooking and rolling device | |
| KR102416856B1 (en) | Rolling machine for electrode sheet of battery | |
| CN105599197A (en) | Method for heating curtain coating roller of polyvinyl alcohol water solution | |
| CN204014931U (en) | A kind of dismantled and assembled rotating disk for cooling dessert | |
| CN202928297U (en) | Device used for drying battery pole piece dynamically | |
| CN203334008U (en) | Drying machine | |
| CN204820638U (en) | Lighter printing system | |
| CN205874667U (en) | Cotton two -sided compound cloth machine of energy -efficient car sound insulation amortization | |
| CN105318667A (en) | Color coating drying device | |
| CN104527040B (en) | Film shaping methods and device | |
| CN207347607U (en) | Dynamic annealing kiln | |
| CN204981640U (en) | Multiple layer vacuum rolls in chamber protruding dull and stereotyped vacuum glass | |
| CN103144354A (en) | Paper cellular board and framework thereof | |
| CN202642901U (en) | Winding shaft used for slitting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |