CN117410627A - Solid superconducting material for lithium battery and lithium battery thermal management system - Google Patents
Solid superconducting material for lithium battery and lithium battery thermal management system Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 116
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 88
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000007787 solid Substances 0.000 title claims abstract description 76
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 claims abstract description 36
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 claims abstract description 36
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 29
- 239000004917 carbon fiber Substances 0.000 claims abstract description 29
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 29
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004945 silicone rubber Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 8
- 229920002545 silicone oil Polymers 0.000 claims description 70
- 238000006243 chemical reaction Methods 0.000 claims description 50
- 239000003054 catalyst Substances 0.000 claims description 47
- 239000003292 glue Substances 0.000 claims description 45
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 44
- 239000001257 hydrogen Substances 0.000 claims description 44
- 229910052739 hydrogen Inorganic materials 0.000 claims description 44
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 42
- 229920002554 vinyl polymer Polymers 0.000 claims description 42
- 239000011159 matrix material Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 21
- 238000005286 illumination Methods 0.000 claims description 17
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 claims description 15
- FBSNEJXXSJHKHX-UHFFFAOYSA-N CC1=C(C(C=C1)([Pt]C)C)C Chemical compound CC1=C(C(C=C1)([Pt]C)C)C FBSNEJXXSJHKHX-UHFFFAOYSA-N 0.000 claims description 15
- 239000011941 photocatalyst Substances 0.000 claims description 15
- 238000004513 sizing Methods 0.000 claims description 15
- 239000002041 carbon nanotube Substances 0.000 claims description 9
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 238000002360 preparation method Methods 0.000 abstract description 27
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 36
- 239000012071 phase Substances 0.000 description 29
- 239000012782 phase change material Substances 0.000 description 22
- 239000004020 conductor Substances 0.000 description 15
- 239000000565 sealant Substances 0.000 description 13
- 238000010008 shearing Methods 0.000 description 12
- 230000007704 transition Effects 0.000 description 12
- 238000007726 management method Methods 0.000 description 11
- 239000012188 paraffin wax Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- OKTJSMMVPCPJKN-YPZZEJLDSA-N carbon-10 atom Chemical group [10C] OKTJSMMVPCPJKN-YPZZEJLDSA-N 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- OKTJSMMVPCPJKN-NJFSPNSNSA-N Carbon-14 Chemical group [14C] OKTJSMMVPCPJKN-NJFSPNSNSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011153 ceramic matrix composite Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- H01M10/65—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
- H01M10/05—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
-
- 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
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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 application discloses a solid superconducting material for a lithium battery and a lithium battery thermal management system. On one hand, the solid superconducting material for the lithium battery comprises the following components in parts by weight: 80-100 parts of magnesium sulfate heptahydrate, 3-5 parts of carbon fiber, 4-10 parts of graphene and 9-15 parts of silicone rubber. On the other hand, the application also provides a preparation method of the solid superconducting material for the lithium battery, which is prepared by adopting a normal-temperature in-situ polymerization method. In a third aspect, the present application further provides a lithium battery thermal management system, which adopts the solid superconducting material for a lithium battery. The lithium battery pack heat conduction device is excellent in heat conduction performance, heat of the lithium battery pack can be conducted out rapidly, and temperature control efficiency of a lithium battery heat management system is improved effectively.
Description
Technical Field
The application relates to the technical field of heat conduction materials, in particular to a solid superconducting material for a lithium battery and a lithium battery heat management system.
Background
Lithium batteries are batteries using lithium as an electrode material, and are classified into lithium metal batteries and lithium ion batteries, and are currently known as batteries having the highest energy density. The lithium metal battery is a battery using manganese dioxide as a positive electrode material and lithium metal or alloy metal thereof as a negative electrode material; lithium ion batteries are batteries using lithium alloy metal oxides as the positive electrode material and carbon or other materials as the negative electrode material. The lithium ion battery not only has high energy density, but also has repeated charge and discharge capability and relatively long service life, so that the lithium ion battery has wide application in various fields. The existing new energy automobiles and a plurality of electric driving devices all use lithium battery packs as power supplies and all use lithium ion batteries.
When the lithium battery pack is charged and discharged for a long time and with a large multiplying power, a large amount of heat is released, and as the optimal working temperature of the lithium battery pack is 20-40 ℃, if heat cannot be dissipated in time, the temperature of the lithium battery pack exceeds the optimal working temperature range, and adverse effects can be caused on the battery performance and the service life. In order to solve the heat dissipation problem of the lithium battery, the existing equipment for assembling the lithium battery pack such as new energy automobiles and the like are provided with a lithium battery heat management system in a matching way, and the equipment is used for controlling the temperature of the lithium battery pack.
Existing lithium battery thermal management systems generally include three major components, a battery pack portion, a heat exchange portion, and a cooling assembly. The battery pack part wraps the single battery of the lithium battery pack by adopting a heat conducting material, and the heat of the lithium battery is led out; the heat exchange part is connected with the battery pack part and used for guiding out the heat of the battery pack part to the heat dissipation component of the heat exchange part; the cooling component is mainly divided into liquid cooling and air cooling, and the cooling component is used for cooling the heat dissipation component. However, the existing heat conducting material has limited heat conducting performance, so that the existing lithium battery heat management system has low heat radiating efficiency and very complex structure.
Disclosure of Invention
In order to solve at least one technical problem, a heat conducting material which is excellent in heat conducting performance, can conduct out heat of a lithium battery pack rapidly and can effectively improve temperature control efficiency of a lithium battery thermal management system is developed.
On one hand, the solid superconducting material for the lithium battery comprises the following components in parts by weight: 80-100 parts of magnesium sulfate heptahydrate, 3-5 parts of carbon fiber, 4-10 parts of graphene and 9-15 parts of silicone rubber.
By adopting the technical scheme, the application designs the solid superconducting material for the lithium battery, the magnesium sulfate heptahydrate is used as the phase change material, the graphene is mixed, the phase change temperature of the material is 48-54 ℃, the phase change enthalpy is high, and the material has extremely excellent heat conduction performance; the solid superconducting material adopts the silicon rubber as the sealant, and is mixed with part of carbon fibers, the whole material has relatively high strength and toughness, and the sealed phase change material cannot leak completely; according to the application, magnesium sulfate heptahydrate is used as a phase change material, silicone rubber is used as sealant, a liquid phase substance generated during phase change is water, no reaction can occur between components, the phase change material can not cause chemical corrosion to the silicone rubber completely, and the service life is long.
Alternatively, the silicone rubber is prepared by synthesizing vinyl-terminated silicone oil and hydrogen-containing silicone oil.
Optionally, the purity of the magnesium sulfate heptahydrate is more than 99%.
Optionally, 2-5 parts of carbon nanotubes are added into the superconducting material.
On the other hand, the application also provides a preparation method of the solid superconducting material for the lithium battery, which comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution;
s2, mixing vinyl silicone oil and hydrogen-containing silicone oil, then adding the magnesium sulfate heptahydrate, carbon fiber and graphene according to the formula amount, and fully mixing to prepare matrix glue;
s3, adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2, and fully mixing to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mould for shaping, then placing the mould into an ultraviolet light condition for illumination reaction, and curing to obtain the solid superconducting material.
Through adopting above-mentioned technical scheme, the application has designed the preparation method of the solid-state superconducting material for the lithium cell of this application, regard vinyl silicone oil and hydrogen-containing silicone oil as the reaction raw materials of this sealant of silicone rubber, adopt normal atmospheric temperature, normal position synthetic method, synthesize the silicone rubber to realize sealedly to each component of superconducting material, not only preparation simple process is convenient for material machine-shaping moreover, and the preparation whole journey is accomplished under normal atmospheric temperature condition, can very big assurance phase change material can not be destroyed because of the preparation.
Optionally, in the step S1, the concentration of the catalyst solution is 1%
Optionally, in the step S2, vinyl silicone oil with a vinyl content of 2-4% and hydrogen-containing silicone oil with a hydrogen content of 0.2-0.4% are adopted; the feeding ratio of the vinyl silicone oil to the hydrogen-containing silicone oil is 6-8:1.
Optionally, in the step S3, the amount of the catalyst solution is 1-2% of the total mass of the vinyl silicone oil and the hydrogen-containing silicone oil.
Optionally, in the step S4, the illumination intensity of the photoreaction is 60-80 mw/cm 2 The reaction time is 5-10 min.
In a third aspect, the present application further provides a lithium battery thermal management system, which adopts the solid superconducting material for a lithium battery.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the application designs a solid superconducting material for a lithium battery, which adopts magnesium sulfate heptahydrate as a phase change material, and is mixed with graphene, wherein the phase change temperature of the material is 48-54 ℃, the phase change latent heat exceeds 190kJ/kg, and the material has extremely excellent heat conduction performance.
2. The solid superconducting material adopts the silicon rubber as the sealant, and is mixed with part of carbon fiber, the whole material has relatively high strength and toughness, and the sealed phase change material can not leak completely.
3. According to the application, magnesium sulfate heptahydrate is used as a phase change material, silicone rubber is used as sealant, a liquid phase substance generated during phase change is water, no reaction can occur between components, the phase change material can not cause chemical corrosion to the silicone rubber completely, and the service life is long.
4. The preparation method of the solid superconducting material for the lithium battery is designed, vinyl silicone oil and hydrogen-containing silicone oil are used as reaction raw materials of the sealant of the silicone rubber, the silicone rubber is synthesized by adopting a normal-temperature and in-situ synthesis method, and sealing is realized on each component of the superconducting material, so that the preparation process is simple, the material is convenient to process and shape, the whole preparation process is finished under the normal-temperature condition, and the phase change material can be greatly ensured not to be damaged due to the preparation.
Detailed Description
The present application is described in further detail below with reference to examples.
The application designs a solid superconducting material for a lithium battery, wherein the superconducting material comprises the following components in parts by mass: 80-100 parts of magnesium sulfate heptahydrate, 3-5 parts of carbon fiber, 4-10 parts of graphene and 9-15 parts of silicone rubber.
The preparation method of the solid superconducting material for the lithium battery comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution;
s2, mixing vinyl silicone oil and hydrogen-containing silicone oil, then adding the magnesium sulfate heptahydrate, carbon fiber and graphene according to the formula amount, and fully mixing to prepare matrix glue;
s3, adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2, and fully mixing to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mould for shaping, then placing the mould into an ultraviolet light condition for illumination reaction, and curing to obtain the solid superconducting material.
Before the application, the heat conducting material adopted by the lithium battery pack in the field is generally a ceramic matrix composite material, and the material has strong heat conducting property and insulating property, and can meet the temperature control requirement of the lithium battery by matching with liquid cooling or air cooling heat radiating equipment.
In addition to the above heat conductive materials, the use of phase change materials as the heat conductive materials for lithium batteries has also been reported in the art. The field uses phase change material as main body, and paraffin is generally used as phase change heat storage material. The phase transition temperature of the paraffin is about 55 ℃, the phase transition temperature is very close to the optimal working temperature of the lithium battery pack, the phase transition enthalpy is more than 150kJ/kg, and the phase transition enthalpy of part of commercial paraffin can exceed 200kJ/kg. The paraffin wax is used for the other core reason that liquid precipitation exists in the phase-change material after phase change, the phase-change material needs to be sealed by pouring sealant, and the paraffin wax is used as the phase-change material with low melting point, can be mixed and dispersed with the pouring sealant after being heated, can be sealed after the pouring sealant is solidified, and is beneficial to the preparation of the heat-conducting material.
However, the prior art has certain defects, and the phase change material with low melting point is favorable for forming dispersion with pouring sealant, so that the heat conduction material with uniformly dispersed phase change material is easy to prepare. However, the pouring sealant has higher hot melting temperature, and the molecular structure of paraffin is easy to damage during preparation, so that partial paraffin is denatured due to high temperature, and the phase change enthalpy of the finally prepared heat conducting material is affected; in addition, the paraffin can be in a liquid state after phase change, the volume can be changed greatly, and when the paraffin is used, the internal pressure of the heat conducting material can be increased due to the phase change of the paraffin, so that the service life of the heat conducting material is further influenced.
Based on the research, the inventor of the application designs the technical scheme of the application, and adopts the high-melting-point magnesium sulfate heptahydrate with higher phase transition enthalpy and larger heat conductivity coefficient as the phase transition material, so that the problems are effectively solved. However, the application uses magnesium sulfate heptahydrate, which has another problem that the heat conducting material needs to be prepared at normal temperature during the preparation. Because magnesium sulfate heptahydrate loses water due to phase change once heated, if the lost water and magnesium sulfate crystal grains are sealed by sealant, the problem of partial failure of the phase change material is also caused.
In order to solve the new technical problems, the inventor of the application uses silicon rubber as sealant, adopts the preparation process designed by the application, uses vinyl silicone oil and hydrogen-containing silicone oil, and synthesizes the silicon rubber through in-situ addition reaction at normal temperature.
The following are examples of the present application, all of which are commercially available.
Examples 1 to 3
The solid superconducting material for the lithium battery of the embodiment 1-3 comprises the following components in parts by mass: 80 parts of magnesium sulfate heptahydrate, 5 parts of carbon fiber, 10 parts of graphene and 14 parts of silicon rubber.
Example 1
This example uses a vinyl silicone oil having a vinyl content of 1% and a hydrogen-containing silicone oil having a hydrogen content of 0.08%.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 0.2%;
s2, mixing 10 parts by weight of vinyl silicone oil and 4 parts by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 2 parts by weight, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 100mW/cm 2 And carrying out illumination reaction for 5min under the ultraviolet light condition to obtain the solid superconducting material.
Example 2
This example uses a vinyl silicone oil having a vinyl content of 1% and a hydrogen-containing silicone oil having a hydrogen content of 0.1%.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percent concentration of 0.5%;
s2, mixing 12 parts by weight of vinyl silicone oil and 2 parts by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.6 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 100mW/cm 2 And carrying out illumination reaction for 5min under the ultraviolet light condition to obtain the solid superconducting material.
Example 3
This example uses a vinyl silicone oil having a vinyl content of 1% and a hydrogen-containing silicone oil having a hydrogen content of 0.4%.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 11.2 parts by weight of vinyl silicone oil and 2.8 parts by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring at a rotating speed of 2000rpm for 45min to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 100mW/cm 2 And carrying out illumination reaction for 5min under the ultraviolet light condition to obtain the solid superconducting material.
Examples 4 to 6
The solid superconducting material for the lithium battery of embodiments 4-6 comprises the following components in parts by weight: 80 parts of magnesium sulfate heptahydrate, 5 parts of carbon fiber, 10 parts of graphene and 9 parts of silicon rubber.
Example 4
This example uses a vinyl silicone oil having a vinyl content of 2% and a hydrogen-containing silicone oil having a hydrogen content of 0.2%.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 8 parts by weight of vinyl silicone oil and 1 part by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 80mW/cm 2 And carrying out illumination reaction for 5min under the ultraviolet light condition to obtain the solid superconducting material.
Example 5
This example uses a vinyl silicone oil having a vinyl content of 3% and a hydrogen-containing silicone oil having a hydrogen content of 0.3%.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 8 parts by weight of vinyl silicone oil and 1 part by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
Example 6
This example uses a vinyl silicone oil having a vinyl content of 4% and a hydrogen-containing silicone oil having a hydrogen content of 0.4%.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 8 parts by weight of vinyl silicone oil and 1 part by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 60mW/cm 2 And carrying out illumination reaction for 10min under the ultraviolet light condition to obtain the solid superconducting material.
Comparative example
The phase change heat conductive material of example 2 with publication number CN113150565a was used as a comparative example.
Taking the solid superconducting materials of examples 1-6 and the phase change heat conducting material of the comparative example, respectively preparing samples with the thickness of 50 multiplied by 5mm, and respectively detecting the heat conductivity coefficient, the phase change temperature and the phase change enthalpy of all the samples. Then aging all the samples, wherein the treatment method is that the temperature is raised and lowered for 1000 times at 20-80 ℃; after aging, the thermal conductivity, phase transition temperature and phase transition enthalpy of all samples were again examined.
Thermal conductivity was tested according to ASTM D5470 standard; the phase transition temperature and enthalpy of phase transition are detected using Differential Scanning Calorimeter (DSC) methods.
Specific detection results are shown in table 1 below.
Table 1 examples 1 to 6 and comparative example performance results data table
All the samples after aging, the samples of examples 1-6 and the samples of the comparative examples were observed, and after aging treatment, no cracking and no leakage of the phase change material occurred.
As can be seen from the data in Table 1, the solid superconducting materials in examples 1 to 6 of the present application have a thermal conductivity coefficient of 4.5W/(mK) or more, a phase transition enthalpy of 200kJ/kg or more, a phase transition temperature of 51 ℃, and excellent thermal conductivity and heat storage properties; the phase-change heat-conducting material with paraffin wax as the main component in the comparative example has the phase-change enthalpy below 170kJ/kg and the heat conductivity coefficient far lower than that of the solid-state superconducting materials in examples 1-6 of the application. In addition, the performance of the phase change heat conducting material of the comparative example is obviously reduced after aging, but the performance of the solid superconducting material of the embodiments 1-6 is not obviously changed after aging; therefore, the solid superconducting materials of examples 1 to 6 of the present application are extremely stable in performance and have excellent durability.
The tensile strength of the samples of examples 1 to 6 and comparative examples of the present application were measured, respectively, and specific measurement results are shown in table 2 below.
Tensile strength was measured according to ASTM D412.
Table 2 mechanical properties test results table for examples 1 to 6 and comparative examples
| Tensile Strength (MPa) | |
| Example 1 | 0.58 |
| Implementation of the embodimentsExample 2 | 0.67 |
| Example 3 | 0.61 |
| Example 4 | 0.70 |
| Example 5 | 0.75 |
| Example 6 | 0.76 |
| Comparative example | 0.64 |
As can be seen from the data in Table 2, the mechanical properties of the superconducting material prepared by adopting the specific vinyl silicone oil and hydrogen-containing silicone oil and adopting the specific feeding ratio of the vinyl silicone oil and the hydrogen-containing silicone oil and matching with the proper catalyst feeding amount and ultraviolet irradiation reaction parameters can be obviously enhanced.
The following are examples 7 to 12 of the present application, which all use vinyl silicone oil having a vinyl content of 4% and hydrogen-containing silicone oil having a hydrogen content of 0.4% as synthetic raw materials for silicone rubber.
Example 7
The solid superconducting material for the lithium battery comprises the following components in parts by weight: 80 parts of magnesium sulfate heptahydrate, 3 parts of carbon fiber, 4 parts of graphene and 9 parts of silicon rubber.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 8 parts by weight of vinyl silicone oil and 1 part by weight of hydrogen-containing silicone oil, adding 80 parts by weight of magnesium sulfate heptahydrate, 3 parts by weight of carbon fiber and 4 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
Example 8
The solid superconducting material for the lithium battery comprises the following components in parts by weight: 90 parts of magnesium sulfate heptahydrate, 4 parts of carbon fiber, 7 parts of graphene and 12 parts of silicon rubber.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 10.66 parts by weight of vinyl silicone oil and 1.34 parts by weight of hydrogen-containing silicone oil, adding 90 parts by weight of magnesium sulfate heptahydrate, 4 parts by weight of carbon fiber and 7 parts by weight of graphene, and shearing and stirring at a rotating speed of 2000rpm for 45min to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
Example 9
The solid superconducting material for the lithium battery comprises the following components in parts by weight: 100 parts of magnesium sulfate heptahydrate, 5 parts of carbon fiber, 10 parts of graphene and 15 parts of silicon rubber.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 13.33 parts by weight of vinyl silicone oil and 1.67 parts by weight of hydrogen-containing silicone oil, adding 100 parts by weight of magnesium sulfate heptahydrate, 5 parts by weight of carbon fiber and 10 parts by weight of graphene, and shearing and stirring for 45min at a rotating speed of 2000rpm to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
Example 10
The solid superconducting material for the lithium battery comprises the following components in parts by weight: 92 parts of magnesium sulfate heptahydrate, 4.8 parts of carbon fiber, 9.2 parts of graphene and 14 parts of silicon rubber.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 12.25 parts by weight of vinyl silicone oil and 1.75 parts by weight of hydrogen-containing silicone oil, adding 92 parts by weight of magnesium sulfate heptahydrate, 4.8 parts by weight of carbon fiber and 9.2 parts by weight of graphene, and shearing and stirring at 2000rpm for 45min to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
Example 11
The solid superconducting material for the lithium battery comprises the following components in parts by weight: 92 parts of magnesium sulfate heptahydrate, 4.8 parts of carbon fiber, 9.2 parts of graphene, 2 parts of carbon nano tube and 14 parts of silicon rubber.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 12.25 parts by weight of vinyl silicone oil and 1.75 parts by weight of hydrogen-containing silicone oil, and then adding 92 parts by weight of magnesium sulfate heptahydrate, 4.8 parts by weight of carbon fiber, 9.2 parts by weight of graphene and 2 parts by weight of carbon nanotube, and shearing and stirring at a rotating speed of 2000rpm for 45min to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
Example 12
The solid superconducting material for the lithium battery comprises the following components in parts by weight: 92 parts of magnesium sulfate heptahydrate, 4.8 parts of carbon fiber, 9.2 parts of graphene, 5 parts of carbon nano tube and 14 parts of silicon rubber.
The preparation of the solid superconducting material for the lithium battery of the embodiment comprises the following steps:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution with the mass percentage concentration of 1%;
s2, mixing 12.25 parts by weight of vinyl silicone oil and 1.75 parts by weight of hydrogen-containing silicone oil, and then adding 92 parts by weight of magnesium sulfate heptahydrate, 4.8 parts by weight of carbon fiber, 9.2 parts by weight of graphene and 5 parts by weight of carbon nanotube, and shearing and stirring at a rotating speed of 2000rpm for 45min to prepare matrix glue;
s3, slowly dropwise adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2 under the condition of continuous stirring, wherein the dropwise adding amount of the catalyst solution is 0.15 part by mass, and continuously stirring for 5min after the dropwise adding is finished to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mold to mold into a film shape with the thickness of 5mm, and then placing the film shape into a mold with the thickness of 70mW/cm 2 And carrying out illumination reaction for 8min under the ultraviolet light condition to obtain the solid superconducting material.
The solid superconducting materials of examples 7 to 12 were subjected to the same performance test, and the results are shown in table 3 below.
Table 3 Table 7-12 Performance results data sheet
As can be seen from the data in Table 3, the prepared solid superconducting material has excellent performance by adopting optimized process parameters, and the proportion of each component of the solid superconducting material has a great influence on the performance of the material.
From comparison of the performance test data of examples 7 to 12 in table 3, it can be seen that the mechanical properties of the prepared solid superconducting material are reduced with the increase of the phase change material ratio and the decrease of the silicone rubber ratio. When the total mass of the silicon rubber is 11-12%, the obtained solid superconducting material has good mechanical properties, and meanwhile, the heat conduction performance is not greatly influenced; the ratio of the total mass of the phase change material to the solid superconducting material is more than 74%, and the heat conduction performance of the solid superconducting material can be obviously improved after the carbon nano tube component is added. In addition, the carbon nano tube is added into the solid superconducting material, so that the carbon nano tube not only has great help to the heat conduction performance of the material, but also can be used as a filler, and the mechanical property of the material is effectively improved.
Application example
The phase-change material is made into a packaging material of the lithium battery pack, and battery packaging parts of the existing lithium battery thermal management systems with a plurality of models are modified to obtain a plurality of lithium battery thermal management systems using the solid superconducting material.
The lithium batteries in the lithium battery thermal management systems are circularly charged and discharged for 100 times, and the temperature of the lithium battery pack is monitored. The result shows that the lithium battery thermal management system using the solid superconducting material can better maintain the temperature of the lithium battery pack in the cyclic charge and discharge process, and the temperature of the lithium battery pack is stabilized within the temperature range of 32-41 ℃.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The solid superconducting material for the lithium battery is characterized by comprising the following components in parts by weight: 80-100 parts of magnesium sulfate heptahydrate, 3-5 parts of carbon fiber, 4-10 parts of graphene and 9-15 parts of silicone rubber.
2. The solid superconducting material for lithium batteries according to claim 1, wherein said silicone rubber is synthesized from vinyl-terminated silicone oil and hydrogen-containing silicone oil.
3. The solid superconducting material for lithium batteries according to claim 1, wherein the purity of the magnesium sulfate heptahydrate is 99% or more.
4. The solid superconducting material for lithium batteries according to claim 1, wherein 2-5 parts of carbon nanotubes are further added to the superconducting material.
5. A method for producing the solid superconducting material for lithium batteries according to claim 1, comprising the steps of:
s1, dissolving photocatalyst (trimethyl) methylcyclopentadienyl platinum in dioxolane to prepare a catalyst solution;
s2, mixing vinyl silicone oil and hydrogen-containing silicone oil, then adding the magnesium sulfate heptahydrate, carbon fiber and graphene according to the formula amount, and fully mixing to prepare matrix glue;
s3, adding the catalyst solution prepared in the step S1 into the matrix glue prepared in the step S2, and fully mixing to prepare a reaction glue stock;
s4, placing the reaction sizing material into a mould for shaping, then placing the mould into an ultraviolet light condition for illumination reaction, and curing to obtain the solid superconducting material.
6. The method for producing a solid superconducting material for a lithium battery according to claim 5, wherein in the step S1, the concentration of the catalyst solution is 1%.
7. The method for preparing a solid superconducting material for a lithium battery according to claim 6, wherein in the step S2, vinyl silicone oil with a vinyl content of 2-4% and hydrogen-containing silicone oil with a hydrogen content of 0.2-0.4% are adopted; the feeding ratio of the vinyl silicone oil to the hydrogen-containing silicone oil is 6-8:1.
8. The method for preparing a solid superconducting material for a lithium battery according to claim 6, wherein in the step S3, the catalyst solution is used in an amount of 1-2% of the total mass of the vinyl silicone oil and the hydrogen-containing silicone oil.
9. The method for producing a solid superconducting material for a lithium battery according to claim 6, characterized in thatIn the step S4, the illumination intensity of the photoreaction is 60-80 mW/cm 2 The reaction time is 5-10 min.
10. A lithium battery thermal management system, characterized in that the solid superconducting material for lithium batteries according to any one of claims 1 to 4 is used.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120148845A1 (en) * | 2010-12-13 | 2012-06-14 | Konica Minolta Business Technologies, Inc. | Heat storage microcapsules and manufacturing method thereof |
| CN102634212A (en) * | 2012-04-23 | 2012-08-15 | 钱新明 | Heat conductive silicone grease composition |
| CN104087254A (en) * | 2014-07-29 | 2014-10-08 | 江苏启能新能源材料有限公司 | High-heat-conductivity inorganic phase-change energy storage material |
| CN106221236A (en) * | 2016-07-26 | 2016-12-14 | 深圳市金无曼工业新材料有限公司 | Can the double-component heat-conducting silicone grease prepared of room temperature or gelation of heating and preparation method thereof |
| CN110791106A (en) * | 2019-11-08 | 2020-02-14 | 清华大学 | Liquid silicone rubber and preparation method thereof |
| CN111286307A (en) * | 2020-03-06 | 2020-06-16 | 平湖阿莱德实业有限公司 | Curable two-component heat-conducting heat-storing silicone gel |
| CN115595125A (en) * | 2022-11-11 | 2023-01-13 | 东莞市鸿亿导热材料有限公司（Cn） | Graphite insulation heat conduction composite material and preparation method thereof |
| CN115612460A (en) * | 2022-10-13 | 2023-01-17 | 合肥国轩循环科技有限公司 | Phase-change material for lithium ion battery thermal management system |
| CN115975606A (en) * | 2022-12-19 | 2023-04-18 | 上海回天新材料有限公司 | Single-component insulation ultrahigh heat conduction gel and preparation method thereof |
| CN117024966A (en) * | 2023-07-17 | 2023-11-10 | 北京创盈光电医疗科技有限公司 | High-energy-storage and rapid-heat-absorption composite silicon rubber and preparation method thereof |
-
2023
- 2023-11-18 CN CN202311539756.9A patent/CN117410627A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120148845A1 (en) * | 2010-12-13 | 2012-06-14 | Konica Minolta Business Technologies, Inc. | Heat storage microcapsules and manufacturing method thereof |
| CN102634212A (en) * | 2012-04-23 | 2012-08-15 | 钱新明 | Heat conductive silicone grease composition |
| CN104087254A (en) * | 2014-07-29 | 2014-10-08 | 江苏启能新能源材料有限公司 | High-heat-conductivity inorganic phase-change energy storage material |
| CN106221236A (en) * | 2016-07-26 | 2016-12-14 | 深圳市金无曼工业新材料有限公司 | Can the double-component heat-conducting silicone grease prepared of room temperature or gelation of heating and preparation method thereof |
| CN110791106A (en) * | 2019-11-08 | 2020-02-14 | 清华大学 | Liquid silicone rubber and preparation method thereof |
| CN111286307A (en) * | 2020-03-06 | 2020-06-16 | 平湖阿莱德实业有限公司 | Curable two-component heat-conducting heat-storing silicone gel |
| CN115612460A (en) * | 2022-10-13 | 2023-01-17 | 合肥国轩循环科技有限公司 | Phase-change material for lithium ion battery thermal management system |
| CN115595125A (en) * | 2022-11-11 | 2023-01-13 | 东莞市鸿亿导热材料有限公司（Cn） | Graphite insulation heat conduction composite material and preparation method thereof |
| CN115975606A (en) * | 2022-12-19 | 2023-04-18 | 上海回天新材料有限公司 | Single-component insulation ultrahigh heat conduction gel and preparation method thereof |
| CN117024966A (en) * | 2023-07-17 | 2023-11-10 | 北京创盈光电医疗科技有限公司 | High-energy-storage and rapid-heat-absorption composite silicon rubber and preparation method thereof |
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