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CN105161652B - A kind of temperature control device prepared for lithium ion battery separator and its application method - Google Patents

A kind of temperature control device prepared for lithium ion battery separator and its application method Download PDF

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Publication number
CN105161652B
CN105161652B CN201510615930.2A CN201510615930A CN105161652B CN 105161652 B CN105161652 B CN 105161652B CN 201510615930 A CN201510615930 A CN 201510615930A CN 105161652 B CN105161652 B CN 105161652B
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China
Prior art keywords
temperature control
control device
passage
oil
application method
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CN201510615930.2A
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Chinese (zh)
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CN105161652A (en
Inventor
孙华
陈秀峰
陈良
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Shenzhen Senior Technology Material Co Ltd
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Shenzhen Senior Technology Material Co Ltd
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Priority to CN201510615930.2A priority Critical patent/CN105161652B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403Manufacturing processes of separators, membranes or diaphragms
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • 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
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing 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 kind of temperature control device prepared for lithium ion battery separator and its application method, the production of lithium ion battery separator is adapted it to.Reach its high accuracy temperature control, reduce energy consumption, reduce start stabilization time, prevent potential safety hazard.Mechanical asphalt channel service life length, it is substantially non-maintaining, a large amount of maintenance costs and maintenance time, and the production loss caused by Breakdown Maintenance are saved, the purpose of reducing production cost.

Description

A kind of temperature control device prepared for lithium ion battery separator and its application method
Technical field
The present invention relates to Temperature-controlled appliance, more particularly to a kind of temperature control device prepared for lithium ion battery separator and Its application method.
Technical background
Because itself possessed performance of lithium ion battery separator, it is desirable to which its manufacturing equipment must be high-precision, especially warm Degree control, Resin crystallization orientation is had a major impact.This is required since extruder blanking section until film forming requires High-precision temperature control, reduce the influence to barrier film crystal structure and follow-up pore-creating character caused by temperature fluctuation.Film product Each process section be unable to do without the carrier such as temperature control and stream chamber runner in preparation process.And lithium battery diaphragm is had because of itself Some characteristics, to the sensitiveness of temperature, and production environment of high-cleanness, high etc., the temperature controls such as runner stream chamber are proposed higher Requirement --- temperature fluctuation control require 0.1 DEG C of <.Far above the temperature requirement (± 2 DEG C) of the films such as BOPP
At present in lithium ion battery separator prepares industry, runner realizes temperature using electric heating coil heating and blower fan cooling Control.For heating collar, due to being affixed to water passage surface, by transmission of heat by contact, heating collar is caused to pass through because machine shakes in itself The loosening of perseverance, while elasticity etc. that heating collar is fixed can not quantify, real contact area also can not definitely ensure, cause through Often there is heat spent or heating amount is inadequate, temperature can not improve.Generally there are the structures such as abutted flange additionally, due to flow passage structure, , can only local heating runner, it is impossible to all standing when causing design processing heating collar.Due to first-class reason, general electrical heating temperature Degree control can be only sustained within ± 1 DEG C.When heater heats, one side in air scatters and disappears amount of heat to workshop, Energy consumption is very high.Due to the characteristic of electrical heating temperature control, its starting up to temperature stabilization generally requires 2 hours or so, largely Waste and start the time.Due to the reason such as frequent dismounting and equipment vibrations, heater connections loose contact or even sparking etc. is caused to be pacified Full hidden danger, this seems in the production of Plastic inflammable thing is particularly acute.Heater is just needed every half a year due to the limitation of service life Integral replacing once, plus replacing and maintenance cost, seems excessively high in current industrial production.The another blower fan type of cooling by It is more worse than electrical heating in the unstability temperature control of gas.Preferable temperature control should be stable and efficient plus H/C But be combined, traditional electrical heating form, mainly done the control in terms of heating, cooling but to lean on it is air-cooled or naturally cold, much The requirement that temperature is precisely controlled is not reached.
Technology in the present invention adapts it to the production of lithium ion battery separator to design a kind of new runner.Reach Its high accuracy temperature control, energy consumption is reduced, reduce start stabilization time, prevent potential safety hazard.Mechanical asphalt channel uses the longevity Life length, it is substantially non-maintaining, a large amount of maintenance costs and maintenance time, and the production loss caused by Breakdown Maintenance are saved, is reduced The purpose of production cost.
The content of the invention
A kind of temperature control device prepared for lithium ion battery separator, including outside inlet connector, flowline connection to subsea, runner Pipe, runner inner tube, and oil circuit runner and melt flow channel;Oil circuit runner is divided into transport screw oil inlet passage, middle transition passage With reverse acting spiral drainback passage;Wherein, inlet connector bifurcated is connected with the front end of transport screw oil inlet passage, and transport screw enters Oily channel end is connected with middle transition passage;Front end of the middle transition passage again with the drainback passage of reverse acting spiral is connected, and And its end is converged and flowline connection to subsea outlet connection.
Preferably, runner inner and outer tubes are structure of mosaic, and contact surface is fitted close.
Preferably, two groups of abutted flanges and fastening bolt are provided at both ends with.
Preferably, diameter 5.0mm~25mm of oil inlet passage and drainback passage.It is highly preferred that oil inlet passage and oil return are led to Diameter 12mm~the 20mm in road.Wherein, oil-feed and the too small temperature control effect of drainback passage are somewhat poor, but in excessive and influence runner The internal structure of pipe and outer tube.
Temperature control device application method prepared by a kind of lithium ion battery separator, after conduction oil builds pressure by oil pump, is pumped to Runner oil inlet pipe, the transport screw oil inlet passage of left and right is then respectively enterd by inlet connector branch two-way;Oil circuit is flow to During transport screw oil inlet passage end, by middle transition passage, into reverse acting spiral drainback passage, and final two oil return lines Converge, flowed out from flowline connection to subsea exit, return to die heater.Whole oil circuit forms inner cycle channel with die heater group.Heat conduction Oil temperature is accurately controlled according to technological requirement by die heater.
Wherein, the runner application method can make temperature fluctuation control in 0.5 DEG C of <, preferably 0.1 DEG C of <.
In addition, embedded oil circuit helical pipe, can the whole plastic melt straight channel of uniform fold (electrical heating form, due to The structural obstructions such as abutted flange, can only local complexity melt flow channel).Because oil circuit is designed in duct wall, oil body is complete with tube wall Contact, and it is completely contactless with outside air, and heat transfer efficiency is high, and energy consumption is extremely low.Oily heating flow channel is not by external electromagnetic signal etc. Interference, stable, reliable operation.Mechanical asphalt channel service life length, it is substantially non-maintaining, save a large amount of maintenance costs And maintenance time, and the production loss caused by Breakdown Maintenance.Because conduction oil can directly be cooled down by chilled water with heat exchanger. Solves the natural defect that electrical heating etc. only has the controllable no controllable cooling of heating well.It ensure that the accurate of temperature well Control.
Brief description of the drawings
Fig. 1 temperature control device structural representations
Fig. 2 oil circuit runner cut-away views
Fig. 3 flow channel cross-section figures
Wherein, the oil pipe of 1. abutted flange, 2. fastening bolt, 3. runner outer tube, 4. runner inner tube, 5. inlet connector 6. 7. the melt flow channel of 10. oil circuit runner of abutted flange 8. oil returning pipe joint, 9. oil return pipe 11.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the embodiment is not used to limit The present invention.
Embodiment 1
Specific temperature control device is as shown in figure 1, subitem is introduced below its title representated by per part and effect:
1. abutted flange 2. fastening bolt, 3. runner outer tube, 4. runner inner tube, 5. inlet connector, 6. oil pipes 7. are right The melt flow channel of 10. oil circuit runner of acting flange 8. oil returning pipe joint, 9. oil return pipe 11..
Fig. 2 is oil circuit runner subdivision graph, and as shown in FIG., plastic melt (lateral arrows) leads to from pipeline intermediate dc road Cross.Oil-feed oil circuit (inflow arrow) enters at fuel inlet fitting, respectively enters the helical duct of left and right.Oil circuit flow to spiral shell Rotation channel end crosses middle transition passage (outflow arrow), into the drainback passage of reverse acting spiral, and final two oil return circuits Converge, flowed out from back leakage connection exit, return to die heater.
Fig. 3 is flow channel cross-section figure, and runner inner and outer tubes are structure of mosaic as seen from the figure, requires that contact surface is tight during processing Close fit, prevent 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 DEG C of <
5.5mm 5.5mm 0.4 DEG C of <
8.5mm 8.5mm 0.2 DEG C of <
10mm 10mm 0.15 DEG C of <
12mm 12mm 0.1 DEG C of <
18mm 17mm 0.06 DEG C of <
20mm 20mm 0.03 DEG C of <
25mm 25mm 0.03 DEG C of <
Above is being set forth application method of the present invention, it is used to help understand the present invention, but the embodiment party of the present invention Formula is simultaneously not restricted to the described embodiments, any without departing from the change made under the principle of the invention, modification, replacement, combination, letter Change, should be equivalent substitute mode, be included within protection scope of the present invention.

Claims (10)

1. a kind of temperature control device prepared for lithium ion battery separator, including outside inlet connector, flowline connection to subsea, runner Pipe, runner inner tube, and oil circuit runner and melt flow channel, it is characterised in that oil circuit runner be divided into transport screw oil inlet passage, in Between transition passage and reverse acting spiral drainback passage;Wherein, inlet connector bifurcated is connected with the front end of transport screw oil inlet passage, Transport screw oil inlet passage end is connected with middle transition passage;Middle transition passage again with before the drainback passage of reverse acting spiral End connection, and its end is converged and flowline connection to subsea outlet connection.
2. temperature control device according to claim 1, it is characterised in that the runner inner and outer tubes are structure of mosaic, and And contact surface is fitted close.
3. temperature control device according to claim 1, it is characterised in that the temperature control device is provided at both ends with two groups of rendezvous methods Blue and fastening bolt.
4. temperature control device according to claim 1, it is characterised in that the diameter of the oil inlet passage and the drainback passage 5.0mm~25mm.
5. temperature control device according to claim 4, it is characterised in that the diameter of the oil inlet passage and the drainback passage 12mm~20mm.
6. according to the temperature control device described in claim 1-5 any claims, it is characterised in that the temperature control device makes temperature Undulated control is in 0.1 DEG C of <.
7. temperature control device application method prepared by a kind of lithium ion battery separator, after conduction oil builds pressure by oil pump, is pumped to stream Road oil inlet pipe, the transport screw oil inlet passage of left and right is then respectively enterd by inlet connector branch two-way;Oil circuit is flow to just During to spiral oil inlet passage end, by middle transition passage, into reverse acting spiral drainback passage, and final two drainback passages Converge, flowed out from flowline connection to subsea exit, return to die heater, whole oil circuit forms inner cycle channel with die heater group.
8. temperature control device application method according to claim 7, it is characterised in that the temperature control device application method makes temperature Undulated control is spent in 0.5 DEG C of <.
9. temperature control device application method according to claim 8, it is characterised in that the temperature control device application method makes temperature Undulated control is spent in 0.1 DEG C of <.
10. application method according to claim 7, it is characterised in that the diameter 12mm of the oil-feed and drainback passage~ 20mm。
CN201510615930.2A 2015-09-24 2015-09-24 A kind of temperature control device prepared for lithium ion battery separator and its application method Active CN105161652B (en)

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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

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Application Number Priority Date Filing Date Title
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CN105161652B true CN105161652B (en) 2017-11-21

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Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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