CN110364648A - A kind of new energy heat dissipation of lithium battery gasket and preparation method thereof - Google Patents
A kind of new energy heat dissipation of lithium battery gasket and preparation method thereof Download PDFInfo
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- CN110364648A CN110364648A CN201810321991.1A CN201810321991A CN110364648A CN 110364648 A CN110364648 A CN 110364648A CN 201810321991 A CN201810321991 A CN 201810321991A CN 110364648 A CN110364648 A CN 110364648A
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- Prior art keywords
- heat dissipation
- lithium battery
- new energy
- mixing
- silicone oil
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5038—Heating or cooling of cells or batteries
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
-
- 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 invention discloses a kind of new energy heat dissipation of lithium battery gaskets and preparation method thereof, the following steps are included: the dimethyl silicone polymer of bi-vinyl sealing end and methyl-silicone oil are stirred under vacuum 10~25 minutes in high speed motive force mixing machine, uniformly mixed mixed material is obtained；The conduction powder for being separately added into different-grain diameter stirs evenly；It is separately added into containing hydrogen silicone oil, retarder, platinum catalyst again after mixing evenly；The Silicone Rubber and high-temperature insulation PI film base material produced is added by special calendaring line after mixing；Carrier equipped with mixed material is put into oven, solidifies at a temperature of 90~120 DEG C 8~15 minutes and radiating gasket is made under the method for add-on type.The heat dissipation of lithium battery gasket has excellent resilience, it ensure that the air of thermally-conductive interface squeezes out completely, tear resistance is strong, reduces thermal resistance to greatest extent, the effects of also acting as insulation, damping, sealing, noise reduction simultaneously, can satisfy the design requirement of device miniaturization and ultrathin.
Description
Technical field
The present invention relates to Heat Conduction Material technical fields, relate more specifically to a kind of new energy heat dissipation of lithium battery gasket.
Background technique
Heat-conducting silica gel sheet is the heat-conducting medium composite material using silica gel as substrate, also known as thermal conductive silicon rubber mat, thermally conductive silica gel
Piece, soft heat conductive pad etc..Silica gel piece is used widely in field of electronic device as Heat Conduction Material, has one
The natural viscosity in fixed flexibility, excellent insulating properties, compressibility, surface, the production of different its heat-conducting silica gel sheet of manufacturer
Production procedure has a certain difference: using general SOLID ORGANIC silica gel as the Heat Conduction Material of raw material, heat-conducting silica gel sheet production technology
Process, which specifically includes that raw material prepare, → plasticating → is kneaded → molding sulfuration → rest and reorganization are cut → and five steps such as examines.Wherein,
Plasticating, it is vital to play the role of with calendering process to the synthesis of material.
103342896 A of prior art CN discloses a kind of thermostable heat-conductive silica gel piece and preparation method thereof, and feature exists
It is as follows in component ratio: the methyl phenyl silicone oil 20 of 50~80 parts of the dimethyl silicone polymer of ethenyl blocking, ethenyl blocking
~50 parts, 0.3~10 part of containing hydrogen silicone oil, 2~6 parts of platinum catalyst, 0.2~0.6 part of retarder, heat-resisting additive 5~100
Part, conduction powder: 400~1200 parts.Preparation method includes: first by the dimethyl silicone polymer of ethenyl blocking and vinyl
The methyl phenyl silicone oil of sealing end is uniformly mixed in kneader；Processed or untreated conduction powder is added portionwise in addition
And heat-resisting additive, containing hydrogen silicone oil, retarder, catalyst are added after mixing to it；It is uniformly mixed and hot in molding machine
It is solidified into sheet material.For the heat-proof silica gel piece that the invention provides at 250 DEG C, 1000h aging still has been able to good usability, i.e.,
Hardness, thermal coefficient variation are within the acceptable range.
Further more, 103113846 B of prior art CN discloses a kind of heat conductive silica gel sheet material and preparation method, the thermal conductive silicon
Film material be by polysiloxanes, conduction powder, surface modifier, crosslinking agent, platinum catalyst, retarder by 10~50:20~
Plates made of 600:0.1~5:0.2~2:0.01~1:0.0001~0.01 parts by weight are mixed and are molded.Preparation method
Include: a, sequentially add polysiloxanes, crosslinking agent, surface modifier, conduction powder, platinum catalyst and retarder instead in proportion
Kettle is answered, stirs 30~50 minutes, obtains mixed material；B, mixed material is filled into frame mould, and upper surface is struck off；
C, the mold equipped with mixed material is put into oven, solidifies 5~20 minutes at a temperature of 80~150 DEG C, is obtained after molding pre-
Determine thickness, on one side band viscosity, the not adhesive heat conductive silica gel sheet material of another side.The invention can make heat conductive silica gel sheet material without secondary
Process processing has one-sided sticking characteristic, while one-shot forming technique ensure that the uniformity of process.
Summary of the invention
Purpose of design of the present invention is: being directed to the existing heat-conducting silica gel sheet product technology situation in this field, our R & D designs
After propose a kind of new energy heat dissipation of lithium battery gasket and preparation method thereof, the tear-proof that can increase radiating gasket itself is strong
Degree, can also improve its heating conduction.
To achieve the above object, the present invention adopts the following technical scheme: a kind of preparation of new energy heat dissipation of lithium battery gasket
Method, comprising the following steps:
Step S1: the dimethyl silicone polymer of bi-vinyl sealing end and methyl-silicone oil are stirred in high speed motive force mixing machine vacuum
It mixes 10~25 minutes, obtains uniformly mixed mixed material；
Step S2: the conduction powder for being separately added into different-grain diameter stirs evenly；
Step S3: containing hydrogen silicone oil, retarder, platinum catalyst are separately added into again after mixing evenly；
Step S4: the Silicone Rubber and high-temperature insulation PI film base produced is added by special calendaring line after mixing
Material；
Step S5: the carrier equipped with mixed material is put into oven, is solidified 8~15 minutes at a temperature of 90~120 DEG C
Radiating gasket is made under the method for add-on type.
Wherein, the conduction powder in the step S2 is micron grade aluminum oxide, micron silicon micro mist, nanoscale
One of aluminium and nanoscale nitride or multiple combinations, the retarder are one of alkynyl ring in alcohol or alkynol compound
Kind.
According to the above method, the present invention proposes a kind of new energy heat dissipation of lithium battery gasket, including shim body, the gasket
Dimethyl silicone polymer that ontology is blocked by bi-vinyl, methyl-silicone oil, containing hydrogen silicone oil, retarder, platinum catalyst, conductive powder
Body presses the weight ratio of 62~115:27~49:5:1:13~15:819~892, in the Silicone Rubber and high temperature resistant for mixing 2~5 weight ratios
Insulation PI film base material micron particles kneading is prepared.
Further, the dimethyl silicone polymer range of viscosities of the bi-vinyl sealing end is 180~220mPas.
Further, the conduction powder is aluminium oxide, silica, zinc oxide, magnesia, aluminium nitride, silicon nitride, nitrogen
Change one of boron, silicon carbide, micron silicon micro mist or multiple combinations, the partial size of the conduction powder is 0.1~80 μm.
Further, the retarder is alkynyl ring one of alcohol or alkynol compound.
Implement new energy heat dissipation of lithium battery gasket and preparation method thereof of the invention, has the advantages that
1. the heat dissipation of lithium battery gasket has excellent resilience, it ensure that the air of thermally-conductive interface squeezes out completely, it is anti-tear
Fragility the effects of reducing thermal resistance to greatest extent, while also acting as insulation, damping, sealing, noise reduction, can satisfy equipment by force
The design requirement of miniaturization and ultrathin；
2. the heat dissipation of lithium battery gasket processing performance is good, the face that is not bonded and sealed, disassembly are easy, cheap, service life
It is long, can be widely applied with radiator bottom or frame, high speed hard disk drives, RDRAM memory modules, micro heat pipe radiator,
Automotive engine control device, communication hardware portable electronic device, semiconductor automatic test equipment etc..
Specific embodiment
Technical solution of the present invention will be clearly and completely described with specific embodiment below.
Embodiment 1:
By 62 parts by weight, the dimethyl silicone polymer for the bi-vinyl sealing end that viscosity is 180mPas and 27 parts by weight
Methyl-silicone oil is stirred under vacuum 10 minutes in high speed motive force mixing machine, obtains uniformly mixed mixed material；It is separately added into 850 weight
The aluminium oxide of part, magnesia mixing composition, the conduction powder that partial size is 5 μm or so stir evenly；Add respectively again after mixing evenly
Enter the containing hydrogen silicone oil of 5 parts by weight, the retarder alkynyl ring of 1 parts by weight alcohol, the platinum catalyst of 13 parts by weight；After mixing
The Silicone Rubber and high-temperature insulation PI film base material micron particles produced are added by special calendaring line；Equipped with mixture
The carrier of material is put into oven, solidifies 8~15 minutes at a temperature of 90~120 DEG C and cooling pad is made under the method for add-on type
Piece.
Embodiment 2:
By 115 parts by weight, the dimethyl silicone polymer for the bi-vinyl sealing end that viscosity is 200mPas and 48 parts by weight
Methyl-silicone oil is stirred under vacuum 12 minutes in high speed motive force mixing machine, obtains uniformly mixed mixed material；It is separately added into 850 weight
The silicon nitride of part, boron nitride, silicon carbide mixing composition, the conduction powder that partial size is 60 μm or so stir evenly；After mixing evenly
It is separately added into the containing hydrogen silicone oil of 5 parts by weight again, the retarder alkynyl ring of 1 parts by weight alcohol, the platinum catalyst of 15 parts by weight；It is mixed
The Silicone Rubber and high-temperature insulation PI film base material micron particles produced is added after closing uniformly by special calendaring line；Dress
There is the carrier of mixed material to be put into oven, solidifies at a temperature of 90~120 DEG C 8~15 minutes and be made under the method for add-on type
Radiating gasket.
Embodiment 3:
By 90 parts by weight, the dimethyl silicone polymer for the bi-vinyl sealing end that viscosity is 195mPas and 27 parts by weight
Methyl-silicone oil is stirred under vacuum 22 minutes in high speed motive force mixing machine, obtains uniformly mixed mixed material；It is separately added into 820 weight
The magnesia of part, aluminium nitride, silicon nitride mixing composition, the conduction powder that partial size is 50 μm or so stir evenly；After mixing evenly
It is separately added into the containing hydrogen silicone oil of 5 parts by weight, the retarder butynol of 1 parts by weight, the platinum catalyst of 14 parts by weight again；Mixing is equal
The Silicone Rubber and high-temperature insulation PI film base material micron particles produced is added after even by special calendaring line；Equipped with mixed
The carrier for closing material is put into oven, solidifies 8~15 minutes at a temperature of 90~120 DEG C and heat dissipation is made under the method for add-on type
Gasket.
Comparative example: (existing heat-conducting pad preparating example)
It takes the polysiloxanes of 50 parts by weight 500mPas ethenyl of side chain to be added in reaction kettle, then successively adds 1.8 weights
Amount part methyl hydrogen polysiloxanes, the aluminium powder that 150 parts by weight partial sizes are 15 microns, the aluminium powder that 100 parts by weight partial sizes are 4 microns,
0.3 parts by weight platinum catalyst, 0.005 part of butynol retarder, obtains uniformly mixed mixed material.Mixed material is put into
In 2mm depth frame-type mold, extra sizing material is scraped with scraper after levelling.Sizing material and mold are put into togerther in oven later,
Solidify 10 minutes at a temperature of 120 DEG C, obtains the comparison radiating gasket sample with a thickness of 2mm.
The test performance correlation data of Examples 1 to 3 and comparative example is shown in Table 1:
Table 1
As it can be seen from table 1 when being compared with the radiating gasket of same thickness, the cooling pad of Examples 1 to 3
The tear resistance and heating conduction of piece are superior to the radiating gasket performance of comparative example.Illustrate that the present invention program can increase heat dissipation
The tearing toughness of gasket itself can also improve the heating conduction of radiating gasket.
The embodiments of the present invention are described in detail above, but present invention is not limited to the embodiments described above,
Those of ordinary skill in the art within the scope of knowledge, can also make various without departing from the purpose of the present invention
Change, modification, replacement and modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of new energy heat dissipation of lithium battery gasket, including shim body, it is characterised in that: the shim body is by bi-vinyl
The dimethyl silicone polymer of sealing end, methyl-silicone oil, containing hydrogen silicone oil, retarder, platinum catalyst, conduction powder press 62~115:27
The weight ratio of~49:5:1:13~15:819~892 is mediated, in the Silicone Rubber and high-temperature insulation PI film base for mixing 2~5 weight ratios
Material micron particles are prepared, and the conduction powder is aluminium oxide, silica, zinc oxide, magnesia, aluminium nitride, nitridation
One of silicon, boron nitride, silicon carbide, micron silicon micro mist or multiple combinations, the partial size of the conduction powder are 0.1~80 μ
m；
The new energy heat dissipation of lithium battery gasket is prepared by following steps:
Step S1: the dimethyl silicone polymer of bi-vinyl sealing end and methyl-silicone oil are stirred under vacuum 10 in high speed motive force mixing machine
~25 minutes, uniformly mixed mixed material is obtained,
Step S2: the conduction powder for being separately added into different-grain diameter stirs evenly,
Step S3: being separately added into containing hydrogen silicone oil again after mixing evenly, retarder, platinum catalyst,
Step S4: the Silicone Rubber produced is added by special calendaring line after mixing and high-temperature insulation PI film base material is micro-
Scale particles,
Step S5: the carrier equipped with mixed material is put into oven, solidifies 8~15 minutes at a temperature of 90~120 DEG C and is adding
Radiating gasket is made under molding method.
2. new energy heat dissipation of lithium battery gasket as described in claim 1, it is characterised in that: poly- the two of the bi-vinyl sealing end
Methylsiloxane range of viscosities is 180~220mPas.
3. new energy heat dissipation of lithium battery gasket as described in claim 1, it is characterised in that: the retarder is alkynyl ring alcohol
Or one of alkynol compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810321991.1A CN110364648B (en) | 2018-04-11 | 2018-04-11 | New energy lithium battery radiating gasket and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810321991.1A CN110364648B (en) | 2018-04-11 | 2018-04-11 | New energy lithium battery radiating gasket and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110364648A true CN110364648A (en) | 2019-10-22 |
| CN110364648B CN110364648B (en) | 2022-04-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871112A (en) * | 2021-09-17 | 2021-12-31 | 惠州东铭新能源研究院有限公司 | Production process of insulating sheet at top of battery module |
| CN115286832A (en) * | 2022-09-03 | 2022-11-04 | 东莞市零度导热材料有限公司 | Heat-conducting silica gel sheet applied to new energy automobile and preparation method thereof |
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| CN110364648B (en) | 2022-04-01 |
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