CN105161652A - Temperature control device used for preparing lithium ion battery diaphragm and using method of temperature control device - Google Patents
Temperature control device used for preparing lithium ion battery diaphragm and using method of temperature control device Download PDFInfo
- Publication number
- CN105161652A CN105161652A CN201510615930.2A CN201510615930A CN105161652A CN 105161652 A CN105161652 A CN 105161652A CN 201510615930 A CN201510615930 A CN 201510615930A CN 105161652 A CN105161652 A CN 105161652A
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- China
- Prior art keywords
- temperature control
- control device
- passage
- oil
- runner
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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
- 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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a temperature control device used for preparing a lithium ion battery diaphragm and a using method of the temperature control device. The temperature control device is suitable for producing the lithium ion battery diaphragm. High-precision temperature control is achieved, energy consumption is reduced, turn-on stabilizing time is shortened, and potential safety hazards are eradicated. The service life of a mechanical oil way channel is long, the mechanical oil way channel is basically free of maintenance, a large amount of maintaining cost and maintaining time are saved, production losses caused by fault maintenance are reduced, and production cost is reduced.
Description
Technical field
The present invention relates to Temperature-controlled appliance, particularly relate to a kind of temperature control device of preparing for lithium ion battery separator and using method thereof.
Technical background
Because the performance that lithium ion battery separator has itself, require the necessary high accuracy of its manufacturing equipment, especially temperature controls, and has material impact to Resin crystallization orientation.This to require from extruder blanking section, until film forming all requires that high-precision temperature controls, to reduce because temperature fluctuation causes impact on barrier film crystal structure and follow-up pore-creating character.In film product preparation process, each process section be unable to do without the carrier such as temperature control and stream chamber runner.And some characteristics that lithium battery diaphragm has because of itself, to the sensitiveness of temperature, and the production environment etc. of high-cleanness, high, the temperature controls such as runner stream chamber are had higher requirement---temperature fluctuation control overflow < 0.1 DEG C.Far above the temperature requirement (± 2 DEG C) of the films such as BOPP
Prepare in industry at lithium ion battery separator at present, runner all adopts electric heating coil to heat and blower fan cools the control realizing temperature.For heating collar, owing to being be fixed on water passage surface, by transmission of heat by contact, because machine vibrations itself cause regular the loosening of heating collar, the elasticity etc. that heating collar is fixing simultaneously cannot quantize, real contact area also cannot definitely ensure, causes often occurring heat spent or adding heat not, and temperature can not improve.In addition because flow passage structure has the structures such as abutted flange usually, when causing design processing heating collar, can only localized heating runner, can not all standing.Due to first-class reason, general electrical heating temperature controls to maintain ± 1 DEG C within.During heater heating, the one side be exposed in air scatters and disappears amount of heat to workshop, and energy consumption is very high.Due to the characteristic that electrical heating temperature controls, its starting up generally needs 2 hours to temperature stabilization, wastes start-up time in a large number.Due to reasons such as frequent dismounting and equipment vibrations, the potential safety hazard such as cause that heater connections loose contact is even struck sparks, this seems particularly serious in Plastic inflammable thing are produced.Heater just needs integral replacing once due to the restriction in useful life every half a year, adds replacing and maintenance cost, seems too high in current industrial production.The another blower fan type of cooling due to gas unsteadiness temperature control poorer than electric heating.Desirable temperature controls to should be stable and high efficiency heating combines with cooling, and traditional electric heating form, has mainly done the control of heating aspect, and cooling but will be leaned on air-cooled or naturally cold, does not reach the requirement that temperature precisely controls far away.
Technology in the present invention is a kind of novel runner of design, makes it adapt to the production of lithium ion battery separator.Reach its high accuracy temperature control, reduce energy consumption, reduce stabilization time of starting shooting, stop potential safety hazard.Mechanical type asphalt channel long service life, substantially non-maintaining, save a large amount of maintenance cost and preventive maintenance time, and the production loss caused because of Breakdown Maintenance, reduce the objects such as production cost.
Summary of the invention
For a temperature control device prepared by lithium ion battery separator, comprise inlet connector, flowline connection to subsea, runner outer tube, pipe in runner, and oil circuit runner and melt flow channel; Oil circuit runner is divided into transport screw oil inlet passage, middle transition passage and reverse acting spiral drainback passage; Wherein, inlet connector bifurcated is connected with the front end of transport screw oil inlet passage, its end and middle transition expanding channels; Middle transition passage is connected with the front end of the drainback passage of reverse acting spiral again, and its end converges to export with back leakage connection and is connected.
Preferably, runner inner and outer tubes are structure of mosaic, and contact-making surface closely cooperates.
Preferably, two ends are provided with two groups of abutted flanges and fastening bolt.
Preferably, the diameter 5.0mm ~ 25mm of oil inlet passage and drainback passage.More preferably, the diameter 12mm ~ 20mm of oil inlet passage and drainback passage.Wherein, oil-feed and the too small temperature control effect of drainback passage somewhat poor, but the excessive internal structure affecting again runner inner and outer tubes.
A temperature control device using method prepared by lithium ion battery separator, after conduction oil builds pressure by oil pump, is pumped to runner oil inlet pipe, is then entered the transport screw oil inlet passage of left and right respectively by inlet connector branch two-way; When oil circuit flow to transport screw oil inlet passage end, by middle transition passage, enter reverse acting spiral drainback passage, and final two oil return lines converge, flow out from back leakage connection exit, return die heater.Whole oil circuit and die heater group form inner cycle channel.Conduction oil temperature, according to technological requirement, is accurately controlled by die heater.
Wherein, this runner using method can make temperature fluctuation control < 0.5 DEG C, preferred < 0.1 DEG C.
In addition, embedded oil circuit helical pipe, can the whole plastic melt straight channel of uniform fold (electric heating form, due to structural obstructions such as abutted flanges, can only local complexity melt flow channel).Because oil circuit designs in duct wall, oil body contacts completely with tube wall, and completely contactless with outside air, and heat transfer efficiency is high, and energy consumption is extremely low.Oil heating flow channel is not by interference such as external electromagnetic signals, stable, reliable operation.Mechanical type asphalt channel long service life, substantially non-maintaining, save a large amount of maintenance cost and preventive maintenance time, and the production loss caused because of Breakdown Maintenance.Because conduction oil directly cools with heat exchanger by chilled water.Well solving electric heating etc. only has controlled heating not have the natural defect of controlled cooling.Well ensure that the accurate control of temperature.
Accompanying drawing explanation
Fig. 1 temperature control device structural representation
Fig. 2 oil circuit runner cut-away view
Fig. 3 flow channel cross-section figure
Wherein, 1. pipe 5. inlet connector 6. oil pipe in abutted flange 2. fastening bolt 3. runner outer tube 4. runner
7. abutted flange 8. oil returning pipe joint 9. oil return pipe 10. oil circuit runner 11. melt flow channel
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but described execution mode is not intended to limit the present invention.
Embodiment 1
Concrete temperature control device as shown in Figure 1, below the representative title of its every part and effect, introduce by subitem:
1. pipe 5. inlet connector 6. oil pipe 7. abutted flange 8. oil returning pipe joint 9. oil return pipe 10. oil circuit runner 11. melt flow channel in abutted flange 2. fastening bolt 3. runner outer tube 4. runner.
Fig. 2 is oil circuit runner subdivision graph, and as shown in FIG., plastic melt (lateral arrows) passes through from pipeline middle straight runner.Oil-feed oil circuit (inflow arrow) enters from fuel inlet fitting, and bifurcation enters the helical duct of left and right respectively.Oil circuit flow to helical duct end and crosses middle transition passage (outflow arrow), enters the drainback passage of reverse acting spiral, and final two oil return circuits converge, and flows out, return die heater from back leakage connection exit.
Fig. 3 is flow channel cross-section figure, and runner inner and outer tubes are structure of mosaic as seen from the figure, adds and requires that contact-making surface closely cooperates man-hour, prevents from letting out in oil inlet and oil return.
Embodiment 2
| The diameter of oil inlet passage | The diameter of oil discharge passage | Temperature control effect |
| 5.0mm | 5.0mm | ＜0.5℃ |
| 5.5mm | 5.5mm | ＜0.4℃ |
| 8.5mm | 8.5mm | ＜0.2℃ |
| 10mm | 10mm | ＜0.15℃ |
| 12mm | 12mm | ＜0.1℃ |
| 18mm | 17mm | ＜0.06℃ |
| 20mm | 20mm | ＜0.03℃ |
| 25mm | 25mm | ＜0.03℃ |
More than that using method of the present invention is set forth; the present invention is understood for helping; but embodiments of the present invention are not restricted to the described embodiments; any do not deviate from the principle of the invention under do change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the temperature control device prepared for lithium ion battery separator, comprise pipe in inlet connector, flowline connection to subsea, runner outer tube, runner, and oil circuit runner and melt flow channel, it is characterized in that, oil circuit runner is divided into transport screw oil inlet passage, middle transition passage and reverse acting spiral drainback passage; Wherein, inlet connector bifurcated is connected with the front end of transport screw oil inlet passage, its end and middle transition expanding channels; Middle transition passage is connected with the front end of the drainback passage of reverse acting spiral again, and its end converges to export with back leakage connection and is connected.
2. temperature control device according to claim 1, it is characterized in that, described runner inner and outer tubes are structure of mosaic, and contact-making surface closely cooperates.
3. temperature control device according to claim 1, it is characterized in that, described temperature control device two ends are provided with two groups of abutted flanges and fastening bolt.
4. temperature control device according to claim 1, is characterized in that, the diameter 5.0mm ~ 25mm of described oil inlet passage and described drainback passage.
5. temperature control device according to claim 4, is characterized in that, the diameter 12mm ~ 20mm of described oil inlet passage and described drainback passage.
6. temperature control device according to the arbitrary claim of claim 1-5, is characterized in that, described temperature control device can make temperature fluctuation control < 0.1 DEG C.
7. the temperature control device using method prepared of lithium ion battery separator, after conduction oil builds pressure by oil pump, is pumped to runner oil inlet pipe, is then entered the transport screw oil inlet passage of left and right respectively by inlet connector branch two-way; When oil circuit flow to transport screw oil inlet passage end, by middle transition passage, enter reverse acting spiral drainback passage, and final two oil return lines converge, flow out from back leakage connection exit, return die heater, whole oil circuit and die heater group form inner cycle channel.
8. using method according to claim 7, it is characterized in that, described temperature control device using method can make temperature fluctuation control < 0.5 DEG C.
9. using method according to claim 8, it is characterized in that, described temperature control device using method can make temperature fluctuation control < 0.1 DEG C.
10. using method according to claim 7, is characterized in that, the diameter 12mm ~ 20mm of described oil-feed and drainback passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615930.2A CN105161652B (en) | 2015-09-24 | 2015-09-24 | A kind of temperature control device prepared for lithium ion battery separator and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510615930.2A CN105161652B (en) | 2015-09-24 | 2015-09-24 | A kind of temperature control device prepared for lithium ion battery separator and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105161652A true CN105161652A (en) | 2015-12-16 |
| CN105161652B CN105161652B (en) | 2017-11-21 |
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|---|---|---|---|
| CN201510615930.2A Active CN105161652B (en) | 2015-09-24 | 2015-09-24 | A kind of temperature control device prepared for lithium ion battery separator and its application method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192681A (en) * | 2006-11-29 | 2008-06-04 | 中国科学院理化技术研究所 | Device and method for directly compounding nanofiber separator on electrode surface of lithium ion battery |
| CN203629012U (en) * | 2013-11-29 | 2014-06-04 | 苏州捷力新能源材料有限公司 | Aging treatment device for lithium battery diaphragm |
| CN103855344A (en) * | 2012-11-30 | 2014-06-11 | 天津力好科技发展有限公司 | Heating roller heat-setting treatment device |
| CN104085101A (en) * | 2014-07-02 | 2014-10-08 | 湖南紫皇冠新能源技术服务有限公司 | Uniaxial tension micro-pore forming equipment for battery diaphragm |
| CN104589560A (en) * | 2015-01-08 | 2015-05-06 | 深圳市星源材质科技股份有限公司 | Cooling method for tape-casting process of lithium-ion battery diaphragm |
-
2015
- 2015-09-24 CN CN201510615930.2A patent/CN105161652B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192681A (en) * | 2006-11-29 | 2008-06-04 | 中国科学院理化技术研究所 | Device and method for directly compounding nanofiber separator on electrode surface of lithium ion battery |
| CN103855344A (en) * | 2012-11-30 | 2014-06-11 | 天津力好科技发展有限公司 | Heating roller heat-setting treatment device |
| CN203629012U (en) * | 2013-11-29 | 2014-06-04 | 苏州捷力新能源材料有限公司 | Aging treatment device for lithium battery diaphragm |
| CN104085101A (en) * | 2014-07-02 | 2014-10-08 | 湖南紫皇冠新能源技术服务有限公司 | Uniaxial tension micro-pore forming equipment for battery diaphragm |
| CN104589560A (en) * | 2015-01-08 | 2015-05-06 | 深圳市星源材质科技股份有限公司 | Cooling method for tape-casting process of lithium-ion battery diaphragm |
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| Publication number | Publication date |
|---|---|
| CN105161652B (en) | 2017-11-21 |
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