CN206322767U - The reel structure toasted for barrier film - Google Patents
The reel structure toasted for barrier film Download PDFInfo
- Publication number
- CN206322767U CN206322767U CN201621492247.0U CN201621492247U CN206322767U CN 206322767 U CN206322767 U CN 206322767U CN 201621492247 U CN201621492247 U CN 201621492247U CN 206322767 U CN206322767 U CN 206322767U
- Authority
- CN
- China
- Prior art keywords
- silica gel
- barrier film
- reel
- gel strip
- toasted
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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 utility model discloses a kind of reel structure toasted for barrier film, including a reel, the surface of the reel is covered with four silica gel strips, and the silica gel strip is placed equidistant in the surface annular of reel, and equal gap is left between every two neighboring silica gel strip；The silica gel strip surface wrap has film to be baked.The utility model provides a kind of reel structure toasted for barrier film, by setting silica gel strip in mandrel surface, gap is set between silica gel strip, when barrier film is toasted, stress produced by barrier film can directly act on silica gel strip, and silica gel strip can extend after being compressed towards gap location, produced stress when greatly having buffered barrier film from baking, diaphragm retracts excessive deformation is avoided, influence is used.
Description
Technical field
The utility model is specifically related to a kind of reel structure toasted for barrier film.
Background technology
The barrier film that the current electric industry of lithium is used is the material such as PP/PE, and PP/PE materials can contraction distortion, barrier film after heated
It can cause that reaction interface is bad between both positive and negative polarity or causes pole piece, battery core arch after contraction, so as to aggravate the penalty of battery.
So, the barrier film shrinkage degree of necessary control barrier film in baking in itself.
Early stage industry development, substantially by winding and lamination by hand, barrier film is cut into before winding and lamination
Diaphragm length needed for single battery core, folds and is put into 80 DEG C of baking 6H of pallet progress, and the barrier film that baking is completed reapplies producing line；
Such a method roasting procedure is cumbersome (first entire volume cuts into single required length-membrane layer closed assembly enters pallet-and is put into oven cooking cycle),
Uniformity after product baking is poor (distinct device, different personnel, the difference of barrier film stack mode), so such a barrier film is toasted
Mode is inadvisable by now.With flourishing for the electric industry of lithium, the automaticity more and more higher of equipment, winding/lamination
Process is all semi-automatic or full-automatic process, and use is all entire volume barrier film feeding, is usually that barrier film is wound in into reel in rolls
Surface, because reel is generally wooden or metal, itself degree of deformability very little, barrier film is in baking, and barrier film is heated to be occurred
Extruding reel is shunk, the material of reel is relatively hard, the stress that barrier film extruding is produced is easily caused barrier film receipts in its own
Contracting is excessive, deformation occur even damages.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of reel structure toasted for barrier film.
A kind of reel structure toasted for barrier film, including a reel, the surface of the reel is covered with four silica gel strips, institute
The surface annular that silica gel strip is stated in reel is placed equidistant, and equal gap is left between every two neighboring silica gel strip；The silica gel
Bar surface wrap has film to be baked.
It is preferred that, a diameter of 76mm of the reel, the thickness of the silica gel strip is 6mm.
The utility model provides a kind of reel structure toasted for barrier film, by setting silica gel strip in mandrel surface,
Gap is set between silica gel strip, and when barrier film is toasted, the stress produced by barrier film can directly act on silica gel strip, and silica gel strip is pressed
It can extend after contracting towards gap location, produced stress when greatly having buffered barrier film from baking, it is to avoid diaphragm retracts mistake
Degree deformation, influence is used.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described.
Fig. 1 is used for the structural representation for the reel structure that barrier film is toasted by what the utility model was proposed.
Numeral is represented in figure：
1st, reel 2, silica gel strip 3, barrier film.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
Shown in Fig. 1, a kind of structure of reel 1 toasted for barrier film 3, including a reel 1, a diameter of 76mm of reel 1, institute
The surface for stating reel 1 is covered with four silica gel strips 2, and the thickness of the silica gel strip 2 is 6mm, and the silica gel strip 2 is in the surface of reel 1
Annular is placed equidistant, and equal gap is left between every two neighboring silica gel strip 2；The surface wrap of silica gel strip 2 has to be baked
Film.
The utility model provides a kind of structure of reel 1 toasted for barrier film 3, by setting silica gel on the surface of reel 1
Gap is set between bar 2, silica gel strip 2, when barrier film 3 is toasted, the stress produced by barrier film 3 can directly act on silica gel strip 2, silicon
Adhesive tape 2 can extend after being compressed towards gap location, produced stress when greatly having buffered barrier film 3 from baking, it is to avoid
The hypersystole of barrier film 3 is deformed, and influence is used.
A variety of modifications to these embodiments will be apparent for those skilled in the art, herein
Defined General Principle can be real in other embodiments in the case where not departing from spirit or scope of the present utility model
It is existing.
Claims (2)
1. a kind of reel structure toasted for barrier film, it is characterised in that including a reel, the surface of the reel is covered with four
Silica gel strip, the silica gel strip is placed equidistant in the surface annular of reel, and equal gap is left between every two neighboring silica gel strip；
The silica gel strip surface wrap has film to be baked.
2. reel structure according to claim 1, it is characterised in that a diameter of 76mm of the reel, the silica gel strip
Thickness be 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492247.0U CN206322767U (en) | 2016-12-30 | 2016-12-30 | The reel structure toasted for barrier film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621492247.0U CN206322767U (en) | 2016-12-30 | 2016-12-30 | The reel structure toasted for barrier film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206322767U true CN206322767U (en) | 2017-07-11 |
Family
ID=59261961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621492247.0U Expired - Fee Related CN206322767U (en) | 2016-12-30 | 2016-12-30 | The reel structure toasted for barrier film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206322767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494344A (en) * | 2017-09-13 | 2019-03-19 | 河北银隆新能源有限公司 | A kind of baking method of battery pole piece |
| 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 |
-
2016
- 2016-12-30 CN CN201621492247.0U patent/CN206322767U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494344A (en) * | 2017-09-13 | 2019-03-19 | 河北银隆新能源有限公司 | A kind of baking method of battery pole piece |
| CN109494344B (en) * | 2017-09-13 | 2021-06-08 | 河北银隆新能源有限公司 | Baking method of battery pole piece |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20181230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |