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WO2019039855A2 - Procédé de mélange de composants de matériau de dissipation thermique - Google Patents

Procédé de mélange de composants de matériau de dissipation thermique Download PDF

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Publication number
WO2019039855A2
WO2019039855A2 PCT/KR2018/009641 KR2018009641W WO2019039855A2 WO 2019039855 A2 WO2019039855 A2 WO 2019039855A2 KR 2018009641 W KR2018009641 W KR 2018009641W WO 2019039855 A2 WO2019039855 A2 WO 2019039855A2
Authority
WO
WIPO (PCT)
Prior art keywords
heat dissipation
static mixer
viscosity
dissipation material
time
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.)
Ceased
Application number
PCT/KR2018/009641
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English (en)
Korean (ko)
Other versions
WO2019039855A3 (fr
Inventor
조윤경
양세우
강양구
박은숙
김현석
박형숙
박상민
양영조
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Priority to CN201880053603.4A priority Critical patent/CN111050896B/zh
Priority to EP18847588.3A priority patent/EP3662992B1/fr
Priority to US16/639,990 priority patent/US11185832B2/en
Priority to JP2020531409A priority patent/JP6973875B2/ja
Priority claimed from KR1020180097733A external-priority patent/KR102191612B1/ko
Publication of WO2019039855A2 publication Critical patent/WO2019039855A2/fr
Publication of WO2019039855A3 publication Critical patent/WO2019039855A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic

Definitions

  • the present invention relates to a mixing method of a heat dissipating material.
  • a battery, a television, a video, a computer, a medical instrument, an office machine, a communication device, or the like generates heat during operation, and an increase in temperature due to the heat causes operation failure or destruction.
  • a heat dissipating member used for the heat dissipating member used for the heat dissipating member.
  • the heat source and the cooling medium or the heat sink are thermally connected to each other as much as possible.
  • the capacity of the mixer should be optimized according to the mixing efficiency or the reaction speed.
  • the present invention provides a method of mixing a heat dissipation material that can optimize the capacity of a static mixer according to a heat dissipation material.
  • a method of mixing a heat dissipation material including a room temperature curing filler with a static mixer comprising: When each of the heat dissipation materials is sequentially injected, the process unit time is a difference between the time when the injection of the heat dissipation material into the second external device starts and the time when the heat dissipation material starts to be injected into the first external device.
  • the capacity (V) of the static mixer can be determined by the following general formula (1).
  • the unit of the capacity of the static mixer may be ml
  • the unit of the injection amount Q may be ml
  • the mixing method may further include performing mixing of the heat dissipation material at a Reynolds number (Re) of 10 to 1000.
  • the number of elements of the static mixer may be 5 to 25.
  • the time t2 at which the initial mixed viscosity is doubled may be 1 to 10 minutes.
  • the time t2 at which the initial mixed viscosity becomes two can be measured by the following method. For example, the heat dissipation material flowing out of the static mixer is measured in a frequency sweep mode using a rheological property measuring device ARES (Advanced Rheometric Expansion System) within 1 minute, and the mixed viscosity at a shear rate of 2.5 / s is measured And after that, the mixed viscosity is measured at least three times according to the elapse of time, and the time at which the initial relative viscosity is doubled through the splot based on the measured mixed viscosities can be obtained.
  • ARES Advanced Rheometric Expansion System
  • the heat-radiating material may have a thermal conductivity of 1.0 W / mK or more.
  • the heat-dissipating material may have a viscosity of 10 to 300,000 cP.
  • the first and second external devices may be battery modules, respectively.
  • the capacity of each static mixer is set such that the amount of charge (Q) per unit time of the static mixer, the process unit time (td) Can be determined based on the time (t2) at which the viscosity of the heat-radiating material becomes twice the initial mixed viscosity.
  • the capacities of the respective static mixers can be determined to be the same.
  • the mixing method of the heat dissipating material according to one embodiment of the present invention has the following effects.
  • the capacity V of the static mixer can be determined based on the injection amount Q per process unit per unit time of the static mixer, the process unit time td and the time t2 which is twice the initial mixture viscosity, It is possible to optimize the capacity of the static mixer.
  • FIG. 1 is a schematic view showing a dispensing apparatus used in a mixing method of a heat dissipating material according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing another embodiment of the dispensing apparatus
  • FIGS. 3 and 4 are schematic views showing embodiments in which a heat dissipation material is injected into a first external device.
  • FIG. 5 is a schematic diagram of the static mixer shown in FIG.
  • FIG. 6 is a schematic view of a module case constituting a battery module.
  • FIG. 7 is a schematic view showing a battery module.
  • FIG. 8 is a schematic view for explaining an injection hole of a module case.
  • Fig. 1 is a schematic view showing a dispensing apparatus 10 used in a mixing method of a heat dissipating material according to an embodiment of the present invention
  • FIG. 1 is a schematic view showing a dispensing apparatus 10 used in a mixing method of a heat dissipating material according to an embodiment of the present invention
  • FIG. 1 is a schematic view showing a dispensing apparatus 10 used in a mixing method of a heat dissipating material according to an embodiment of the present invention
  • Fig. 2 is a schematic view showing still another embodiment of
  • FIG. 5 is a schematic diagram of the static mixer 100 shown in FIG.
  • a method of mixing a heat dissipating material according to an embodiment of the present invention is a method of mixing a heat dissipating material including a room temperature hardening filler with a plurality of static mixers.
  • a heat dissipation material according to the present invention may be injected into an external device 200 or 300 through a dispensing device 10.
  • the dispensing apparatus 10 includes at least one static mixer 100 connected to the dispensing unit 20 and the dispensing unit 20.
  • the external device may be a battery module.
  • a first external device refers to a first battery module and a second external device refers to a second battery module.
  • the first and second battery modules have the same structure and are merely referred to as separate terms for the purpose of describing sequential process units.
  • the manufacturing method of the battery module may include a step of providing the battery module, a step of mixing the heat-radiating material, and a step of injecting the heat-radiating material. At this time, the mixing and injection of the heat dissipation material is performed through a static mixer.
  • the heat dissipation material may be mixed in the static mixer 100, and the heat dissipation material may be injected into the single battery module through the plurality of static mixers 100.
  • FIG. 6 is a schematic view of a module case 210 constituting a battery module
  • FIG. 7 is a schematic view showing a battery module 200
  • FIG. 8 is a schematic view for illustrating an injection hole 230 of a module case.
  • the battery module 200 includes a module case 210 and a plurality of battery cells 220 disposed in the module case 210.
  • the battery cell 220 may be a pouch-type secondary battery.
  • the battery cell 200 may typically include an electrode assembly, an electrolyte, and a pouch exterior. The heat dissipation material is injected into a space between the battery cells in the module case and functions to dissipate heat generated in the battery cells 220.
  • the module case 210 may have, for example, a rectangular parallelepiped shape, and may have a bottom surface 211, a side surface 212, and a top surface 213. At this time, one or more injection holes 230 may be formed in the upper surface 213. At this time, one static mixer 100 is connected to one injection hole 230 so that the heat dissipating material flowing out of the static mixer 100 can be injected into the battery module 200 through the injection hole 230.
  • the step of injecting the heat dissipation material may be sequentially performed on the plurality of battery modules. For example, referring to FIG. 1, after the heat radiation material is completely injected into the first battery module 200, the heat radiation material may be injected into the second battery module 300.
  • the first and second battery modules 200 and 300 are conveyed by a conveyance unit (for example, a belt conveyor), sequentially passed through the dispensing apparatus 100, and a heat dissipation material can be injected.
  • a heat dissipation material may be injected into one battery module (for example, the first battery module 200) through one static mixer.
  • the heat dissipation material may be injected into one battery module (for example, the first battery module 200) through the static mixer 100.
  • a dispensing device 100 for mixing and injecting heat dissipation materials in accordance with the present invention includes at least one static mixer 100 connected to a dispensing part 20 and a dispensing part 20.
  • a heat-radiating material mixed through a static mixer and injected into a battery module relates to a thermally conductive resin composition.
  • the resin composition may include a resin component and a thermally conductive filler.
  • the dispensing portion 20 includes a first supply cartridge portion 21 and a second supply cartridge portion 22. At this time, the first supply cartridge portion 21 and the second supply cartridge portion 22 are individually connected to the static mixer 100.
  • the first supply cartridge portion 21 supplies the main resin and the thermally conductive filler for forming the resin composition to the static mixer 100 and the second supply cartridge portion 22 supplies the hardener and thermally conductive filler to the static mixer 100. [ To the mixer (100).
  • the static mixer 100 has an inlet 101 and an outlet 102.
  • the inflow section 101 is provided separately from the first supply cartridge section 21 and the second supply cartridge section 22, and the outflow section 102 is connected to the module case 100 of the battery module 200 And is connected to the injection hole 230 provided in the injection tube 210.
  • the static mixer 100 includes a screw portion 120 for mixing and transporting.
  • the screw part 120 is composed of a plurality of elements 121.
  • One element 121 forms one end B and the number of the elements 121 can be referred to as a single number.
  • the number of the elements 121 of the static mixer 100 may be 5 to 25. If the number of the elements 121 is insufficient, the mixing efficiency lowers, which may affect the curing speed, the adhesive force, the insulating property, and the like, or cause a problem in reliability. Alternatively, if the number of the elements 121 is excessively large, the mixer having a small diameter and a long length is used to maintain the same mixer capacity.
  • the static mixer 100 has a mixer inner diameter D of about 9 mm in which the screw portion 120 is disposed, a width of the screw portion 120 of 5 mm, a diameter A of the outflow portion 102, 3 mm, the mixer length L is 225 mm, and the number of stages is 24.
  • One embodiment of the present invention provides a method of mixing and injecting a heat dissipation material containing a room temperature curing filler into a static mixer.
  • the unit time of the process is set to a time when the injection of the heat dissipation material starts to the second external device, It is the difference in starting point. For example, when the time for injecting the heat dissipation material into the first external device (first battery module 200) is 0:00 and the injection of the first external device is completed, the second external device (the first battery module, 200) is 3:30, and the process unit time is 3 minutes.
  • the mixing method of the heat dissipation material is such that the amount Q of the process unit time, the process unit time td and the viscosity of the heat dissipation material flowing out of the static mixer 100 become twice the initial mixture viscosity t2 And determining a capacity V of the static mixer based on the calculated capacity V of the static mixer.
  • the amount Q of injecting the heat dissipating material into the battery module with the static mixer per unit time, the process unit time td, and the time when the viscosity of the heat dissipating material flowing out of the static mixer 100 becomes twice the initial mixed viscosity the capacity V of the static mixer 100 can be determined according to the time t2.
  • the capacity (V) of the static mixer can be determined by the following general formula (1).
  • the unit of the capacity of the static mixer may be ml
  • the unit of the injection amount Q may be ml
  • the mixing method may further include performing mixing of the heat dissipation material at a Reynolds number (Re) of 10 to 1000.
  • the static mixer may have 5 to 25 elements.
  • the heat radiation material may have a thermal conductivity of 1.0 W / mK or more, and the heat radiation material may have a viscosity of 10 to 300,000 cP.
  • the capacity 100 of each static mixer is set to be less than the capacity 100 of the static mixer 100 (Q) per process unit time, the process unit time (td), and the time t2 at which the viscosity of the heat dissipating material flowing out of the static mixer 100 becomes twice the initial mixed viscosity.
  • the capacities of the respective static mixers can be determined to be the same.
  • the capacity (V) of each static mixer can be determined by the following formula (1).
  • the unit of the capacity of the static mixer may be ml
  • the unit of the injection amount Q may be ml
  • the capacity V of the static mixer is larger than the capacity satisfying the general formula 1, the capacity V exceeds the consumption amount per unit process, so that the time during which the heat dissipation material stays in the static mixer increases, There is a possibility that the static mixer 100 is clogged.
  • the heat-radiating material relates to a thermally conductive resin composition.
  • the resin composition may include a resin component and a thermally conductive filler.
  • the resin composition may be an adhesive composition, for example, a composition capable of forming an adhesive through a curing reaction or the like.
  • the resin composition may be a solvent type resin composition, a water-based resin composition or a solvent-free resin composition.
  • a thermally conductive filler to be described later is added to a resin composition capable of forming a known acrylic adhesive, epoxy adhesive, urethane adhesive, olefin adhesive, EVA (ethylene vinyl acetate) adhesive or silicone adhesive, Can be prepared.
  • resin component is used to mean a component that is generally known as a resin, as well as a component that can be converted to a resin through a curing reaction or polymerization reaction.
  • a precursor capable of forming an adhesive resin or an adhesive resin can be applied as the resin component.
  • a resin component include, but are not limited to, an acrylic resin, an epoxy resin, a urethane resin, an olefin resin, an ethylene vinyl acetate (EVA) resin or a silicone resin, or a precursor such as a polyol or an isocyanate compound.
  • the resin composition may include a thermally conductive filler together with the resin component.
  • thermally conductive filler refers to a material having a thermal conductivity of at least about 1 W / mK, at least about 5 W / mK, at least about 10 W / mK, or at least about 15 W / mK.
  • the thermal conductivity of the thermally conductive filler may be about 400 W / mK or less, about 350 W / mK or less, or about 300 W / mK or less.
  • the kind of the thermally conductive filler is not particularly limited, but a ceramic filler can be applied in consideration of insulation and the like.
  • ceramic particles such as alumina, aluminum nitride (AlN), boron nitride (BN), silicon nitride, SiC or BeO may be used. If insulation properties can be secured, application of carbon filler such as graphite can be considered.
  • the resin composition may include about 600 parts by weight or more of the thermally conductive filler based on 100 parts by weight of the resin component.
  • the proportion of the filler may be at least 650 parts by weight or at least 700 parts by weight based on 100 parts by weight of the resin component.
  • the proportion may be up to about 2,000 parts by weight, up to about 1,500 parts by weight, or up to about 1,100 parts by weight, based on 100 parts by weight of the resin component. It is possible to secure desired physical properties such as thermal conductivity and insulating property within the ratio range of the filler.
  • the viscosity of the resin composition increases greatly and the handling property is accordingly deteriorated. Even after the resin material is formed, the resin composition contains bubbles or voids, It can fall.
  • a filler having at least three different diameters may be applied to the resin composition at a predetermined ratio.
  • the shape of the filler is not particularly limited and may be selected in consideration of viscosity and tin-firing of the resin composition, possibility of settling in the composition, desired thermal resistance or thermal conductivity, insulating property, filling effect or dispersibility.
  • a spherical filler in consideration of the amount to be filled.
  • a non-spherical filler for example, a filler such as a needle or a plate, Can be used.
  • the resin composition basically includes the above components, that is, the resin component and the thermally conductive filler, and may include other components if necessary.
  • the resin composition may contain a viscosity controlling agent such as a thixotropic agent, a diluent, a dispersing agent, a surface treatment agent, or a dispersing agent for controlling viscosity, for example, increasing or decreasing viscosity, A coupling agent, and the like.
  • the thixotropic agent can control the viscosity according to the shear force of the resin composition so that the manufacturing process of the battery module can be effectively performed.
  • thixotropic agents that can be used, fumed silica and the like can be exemplified.
  • the diluent or dispersant is usually used for lowering the viscosity of the resin composition and may be any of various kinds known in the art as long as it can exhibit the above-mentioned action.
  • the surface treatment agent is for surface treatment of the filler introduced into the resin composition, and any of various kinds of art known in the art can be used without limitation as long as it can exhibit the above-mentioned action.
  • the coupling agent can be used, for example, to improve the dispersibility of the thermally conductive filler such as alumina, and any of various kinds known in the art can be used without limitation as long as it can exhibit the above-mentioned action.
  • the resin composition may further include a flame retardant or a flame retardant auxiliary.
  • a resin composition can form a flame retardant resin composition.
  • the flame retardant various known flame retardants may be applied without particular limitation, and for example, solid phase filler-type flame retardants and liquid flame retardants can be applied.
  • the flame retardant include organic flame retardants such as melamine cyanurate and the like, inorganic flame retardants such as magnesium hydroxide and the like, but are not limited thereto.
  • TEP triethyl phosphate
  • TCPP tris (1,3-chloro-2-propyl) phosphate, etc.
  • a silane coupling agent capable of acting as a flame retardant may be added.
  • the heat dissipation material may be a heat dissipation filler and a high viscosity liquid-type room temperature curing type urethane.
  • the heat radiation material may have a thermal conductivity of 1.0 W / mK or more, and the heat radiation material may have a viscosity of 10 to 300,000 cP.
  • the specific gravity may be 3 g / cm 3
  • the mixer diameter may be 10 mm
  • the flow rate may be 0.25 cm 3 / sec.
  • the Reynolds number (Re) is 58 and the number of elements is 12. At this time, the lower the viscosity, the smaller the number of elements required. For example, when the viscosity is 100,000 to 1,000,000, the number of elements may be 12 to 25.
  • the time t2 at which the initial mixing viscosity is doubled may be 1 to 10 minutes, the process unit time td may be 3 minutes, and the amount of injection Q per static mixer may be 30 ml.
  • the maximum static volume V of the static mixer is 30 ml in the calculation according to the general formula (1).
  • the rate of cure can be relative to the rate of cure time under the same cure conditions based on a normal cure rate of 100 at the target mixing ratio (e.g., 1: 1 in liquid form). Also, the fairness is divided into "O” if the actual process unit time is equal to or faster than the target process time, and "X” if the actual process unit time is compared with the target process time.
  • the capacity of the static mixer can be optimized in correspondence with the heat dissipating material.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

La présente invention concerne un procédé permettant de mélanger des composants de matériau de dissipation thermique. Selon un aspect, la présente invention concerne un procédé de mélange de composants de matériau de dissipation thermique comprenant des charges de vulcanisation à température ambiante à l'aide d'un mélangeur statique, le procédé comprenant une étape consistant à déterminer le volume (V) d'un mélangeur statique sur la base de la quantité (Q) de matériau de dissipation thermique injectée par temps de traitement unitaire, un temps de traitement unitaire (td), et un temps (t2) auquel la viscosité du matériau de dissipation thermique évacuée du mélangeur statique est deux fois plus élevée que la viscosité de mélange initiale, et lorsque le matériau de dissipation thermique est séquentiellement injecté dans des premier et second dispositifs externes à l'aide du mélangeur statique, le temps de traitement unitaire est défini comme la différence entre un moment où l'injection du matériau de dissipation thermique dans le second dispositif externe est démarrée et un moment où l'injection du matériau de dissipation thermique dans le premier dispositif externe est démarrée.
PCT/KR2018/009641 2017-08-22 2018-08-22 Procédé de mélange de composants de matériau de dissipation thermique Ceased WO2019039855A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201880053603.4A CN111050896B (zh) 2017-08-22 2018-08-22 用于混合散热材料的方法
EP18847588.3A EP3662992B1 (fr) 2017-08-22 2018-08-22 Procédé de mélange de composants de matériau de dissipation thermique
US16/639,990 US11185832B2 (en) 2017-08-22 2018-08-22 Method for mixing heat-dissipating material
JP2020531409A JP6973875B2 (ja) 2017-08-22 2018-08-22 放熱素材の混合方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2017-0105933 2017-08-22
KR20170105933 2017-08-22
KR10-2018-0097733 2018-08-22
KR1020180097733A KR102191612B1 (ko) 2017-08-22 2018-08-22 방열 소재의 혼합 방법

Publications (2)

Publication Number Publication Date
WO2019039855A2 true WO2019039855A2 (fr) 2019-02-28
WO2019039855A3 WO2019039855A3 (fr) 2019-04-18

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PCT/KR2018/009641 Ceased WO2019039855A2 (fr) 2017-08-22 2018-08-22 Procédé de mélange de composants de matériau de dissipation thermique

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11185832B2 (en) * 2017-08-22 2021-11-30 Lg Chem, Ltd. Method for mixing heat-dissipating material

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KR20170105933A (ko) 2016-03-11 2017-09-20 이상훈 침대의 유동장치 및 방법
KR20180097733A (ko) 2016-01-13 2018-08-31 그뤼넨탈 게엠베하 3-(카복시메틸)-8-아미노-2-옥소-1,3-디아자-스피로-[4.5]-데칸 유도체

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JP2004277477A (ja) * 2003-03-13 2004-10-07 Hiroshi Okai 樹脂硬化体の製造方法
JP4728731B2 (ja) * 2005-08-01 2011-07-20 株式会社Gns 二液硬化型材料の供給方法
ATE530465T1 (de) * 2006-12-15 2011-11-15 3M Innovative Properties Co Mischung und ausgabe härtbarer materialien aus mehreren bestandteilen
JP5422802B2 (ja) * 2010-03-18 2014-02-19 洋 岡井 ２液混合速硬化性組成物用の塗布装置並びに該速硬化性組成物
JP2014076406A (ja) * 2012-10-09 2014-05-01 Hiroshi Okai 熱可塑性重合体の製造と塗布を一体化した装置

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KR20180097733A (ko) 2016-01-13 2018-08-31 그뤼넨탈 게엠베하 3-(카복시메틸)-8-아미노-2-옥소-1,3-디아자-스피로-[4.5]-데칸 유도체
KR20170105933A (ko) 2016-03-11 2017-09-20 이상훈 침대의 유동장치 및 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11185832B2 (en) * 2017-08-22 2021-11-30 Lg Chem, Ltd. Method for mixing heat-dissipating material

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