CN108624291A - PCM heat sink materials and preparation method thereof for automobile batteries - Google Patents
PCM heat sink materials and preparation method thereof for automobile batteries Download PDFInfo
- Publication number
- CN108624291A CN108624291A CN201810317635.2A CN201810317635A CN108624291A CN 108624291 A CN108624291 A CN 108624291A CN 201810317635 A CN201810317635 A CN 201810317635A CN 108624291 A CN108624291 A CN 108624291A
- Authority
- CN
- China
- Prior art keywords
- foam copper
- heat sink
- preparation
- weight
- parts
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 239000010949 copper Substances 0.000 claims abstract description 46
- 239000006260 foam Substances 0.000 claims abstract description 46
- 239000012188 paraffin wax Substances 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 15
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 15
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 12
- 239000010439 graphite Substances 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims 3
- 238000002604 ultrasonography Methods 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 239000012782 phase change material Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage 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
- H01M10/61—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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Secondary Cells (AREA)
Abstract
The PCM heat sink materials and preparation method thereof that the invention discloses a kind of for automobile batteries, the preparation method include：Foam copper is placed in closed container, and vacuumize process is carried out to closed container；It is passed through carbonaceous gas into closed container, and foam copper is heated, the foam copper green body for wrapping up carbon film in surface is obtained after its cooling；By melted paraffin wax, and silica, expanded graphite and aliphatic acid are sequentially added, paraffin melt is obtained after being stirred；Foam copper green body obtained is immersed into paraffin melt, the first stage：4 10min are persistently impregnated at 70 80 DEG C；Second stage：2 5min are persistently impregnated at 40 55 DEG C；PCM heat sink materials are obtained after cooling；PCM heat sink materials are obtained after cooling；Solves the defects of traditional simple phase-change material is relatively low there are thermal coefficient, the problem for causing its heat dissipation effect undesirable.
Description
Technical field
The present invention relates to battery heat sink materials, and in particular, to a kind of PCM heat sink materials and its system for automobile batteries
Preparation Method.
Background technology
Phase-change material cooling achievees the purpose that heat dissipation as a heat transfer medium using phase-change material.It is become with temperature
Change that the change of physical state occurs and discharges the substance of latent heat.The process of wherein physical state variation becomes phase transformation, herein
Phase-change material discharges or absorbs a large amount of heat in the process.Due to its unique advantage, obtained extensively in various fields
Application.PCM is applied in battery thermal management system, i.e., entire battery pack is immersed in PCM, what when battery power discharge generated
Heat is absorbed by PCM to make battery temperature reduce, while heat is stored in the form of the heat of transformation in PCM.Traditional is simple
Phase-change material it is relatively low there are thermal coefficient the defects of, cause its heat dissipation effect undesirable, therefore need to lead phase-change material and height
The compound preparation of hot material, to obtain high intensity and the excellent PCM material of heat dissipation effect.
Invention content
The PCM heat sink materials and preparation method thereof that the object of the present invention is to provide a kind of for automobile batteries, solve biography
The defects of simple phase-change material of system is relatively low there are thermal coefficient, the problem for causing its heat dissipation effect undesirable.
To achieve the goals above, the present invention provides a kind of preparation method of the PCM heat sink materials for automobile batteries,
The preparation method includes：
(1) foam copper is placed in closed container, and vacuumize process is carried out to closed container；
(2) it is passed through carbonaceous gas into closed container, and foam copper is heated, surface package is obtained after its cooling
The foam copper green body of carbon film；Wherein, the temperature of heating is 20-50 DEG C, and the time of heating is 5-10min；
(3) by melted paraffin wax, and silica, expanded graphite and aliphatic acid are sequentially added, paraffin is obtained after being stirred
Melt；
(4) foam copper green body obtained is immersed into paraffin melt, the first stage：4- is persistently impregnated at 70-80 DEG C
10min；Second stage：2-5min is persistently impregnated at 40-55 DEG C；PCM heat sink materials are obtained after cooling；
Wherein, relative to 100 parts by weight paraffin, the dosage of expanded graphite is 10-18 parts by weight, and the dosage of silica is
The dosage of 2-7 parts by weight, aliphatic acid is 1-5 parts by weight, and the dosage of foam copper green body is 80-90 parts by weight.
The present invention also provides a kind of PCM heat sink materials for automobile batteries, and the PCM heat sink materials are by above-mentioned system
Preparation Method is made.
According to above-mentioned technical proposal, the present invention provides a kind of for the PCM heat sink materials of automobile batteries and its preparation side
Method, the preparation method include：Foam copper is placed in closed container, and vacuumize process is carried out to closed container；It is past closed
It is passed through carbonaceous gas in container, and foam copper is heated, the foam copper green body for wrapping up carbon film in surface is obtained after its cooling；
Wherein, the temperature of heating is 20-50 DEG C, and the time of heating is 5-10min；By melted paraffin wax, and sequentially add silica, swollen
Swollen graphite and aliphatic acid obtain paraffin melt after being stirred；Foam copper green body obtained is immersed into paraffin melt, first
Stage：4-10min is persistently impregnated at 70-80 DEG C；Second stage：2-5min is persistently impregnated at 40-55 DEG C；It is obtained after cooling
PCM heat sink materials；PCM heat sink materials made from the method provided through the invention, surface cover one layer it is fine and close ultra-thin
Carbon film can greatly improve its oxidation resistance, on the one hand, and the addition of foam copper compensates for the defect of paraffin heat conductivility difference,
The thermal coefficient of composite material is set to greatly improve, another aspect paraffin is adequately filled with the through-hole structure of foam copper, improves
Heat accumulation and heat transfer property.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of preparation method of the PCM heat sink materials for automobile batteries, the preparation method includes：
(1) foam copper is placed in closed container, and vacuumize process is carried out to closed container；
(2) it is passed through carbonaceous gas into closed container, and foam copper is heated, surface package is obtained after its cooling
The foam copper green body of carbon film；Wherein, the temperature of heating is 20-50 DEG C, and the time of heating is 5-10min；
(3) by melted paraffin wax, and silica, expanded graphite and aliphatic acid are sequentially added, paraffin is obtained after being stirred
Melt；
(4) foam copper green body obtained is immersed into paraffin melt, the first stage：4- is persistently impregnated at 70-80 DEG C
10min；Second stage：2-5min is persistently impregnated at 40-55 DEG C；PCM heat sink materials are obtained after cooling；
Wherein, relative to 100 parts by weight paraffin, the dosage of expanded graphite is 10-18 parts by weight, and the dosage of silica is
The dosage of 2-7 parts by weight, aliphatic acid is 1-5 parts by weight, and the dosage of foam copper green body is 80-90 parts by weight.
In a kind of preferred embodiment of the present invention, in order to further increase the heat dissipation of PCM heat sink materials obtained
Performance, relative to 100 parts by weight paraffin, the dosage of expanded graphite is 12-16 parts by weight, and the dosage of silica is 4-5 weight
Part, the dosage of aliphatic acid is 2-3 parts by weight, and the dosage of foam copper green body is 82-86 parts by weight.
In a kind of preferred embodiment of the present invention, in order to further increase the heat dissipation of PCM heat sink materials obtained
Performance, carbonaceous gas are one or more in carbon dioxide, methane, acetylene, toluene and hexamethylene.
In a kind of preferred embodiment of the present invention, in order to ensure that foam copper using front surface cleaning, reduces it
The influence of late phase reaction, foam copper are cleaned by ultrasonic and are dried using acetone or alcohol using preceding.
In a kind of preferred embodiment of the present invention, in order to further increase the heat dissipation of PCM heat sink materials obtained
Performance, the speed being stirred are 50-70rpm, and the time being stirred is 10-15min.
The present invention also provides a kind of PCM heat sink materials for automobile batteries, and the PCM heat sink materials are by above-mentioned system
Preparation Method is made.
The present invention will be described in detail by way of examples below.In following embodiment, flat plate heat method is protected using DRH types
Heat conduction coefficient tester carries out thermal conductivity coefficient measurement to PCM heat sink materials A1-A5 obtained.
Embodiment 1
Foam copper is cleaned by ultrasonic and is dried using acetone, foam copper is placed in closed container later, and to close
It closes container and carries out vacuumize process；It is passed through carbon dioxide into closed container, and foam copper is heated, after its cooling
The foam copper green body of carbon film is wrapped up to surface；Wherein, the temperature of heating is 20 DEG C, and the time of heating is 5min；By 100g paraffin
Fusing, and sequentially adds 4g silica, 12g expanded graphites and 2g aliphatic acid, is stirred that (speed 50rpm, time is
Paraffin melt is obtained after 10min)；Foam copper green body 82g obtained is immersed into paraffin melt, the first stage：At 70 DEG C
Persistently impregnate 4min；Second stage：2min is persistently impregnated at 40 DEG C, and PCM heat sink materials A1 is obtained after cooling.The PCM measured
The thermal coefficient of heat sink material is 5.1Wrn-1·K-1。
Embodiment 2
Foam copper is cleaned by ultrasonic and is dried using acetone, foam copper is placed in closed container later, and to close
It closes container and carries out vacuumize process；It is passed through methane gas into closed container, and foam copper is heated, after its cooling
The foam copper green body of carbon film is wrapped up to surface；Wherein, the temperature of heating is 50 DEG C, and the time of heating is 10min；By 100g paraffin
Fusing, and sequentially adds 5g silica, 16g expanded graphites and 3g aliphatic acid, is stirred that (speed 70rpm, time is
Paraffin melt is obtained after 15min)；First stage：10min is persistently impregnated at 80 DEG C；Second stage：It is persistently impregnated at 55 DEG C
5min obtains PCM heat sink materials A2 after cooling.The thermal coefficient of the PCM heat sink materials measured is 4.9Wrn-1·K-1。
Embodiment 3
Foam copper is cleaned by ultrasonic and is dried using acetone, foam copper is placed in closed container later, and to close
It closes container and carries out vacuumize process；It is passed through acetylene gas into closed container, and foam copper is heated, after its cooling
The foam copper green body of carbon film is wrapped up to surface；Wherein, the temperature of heating is 35 DEG C, and the time of heating is 7min；By 100g paraffin
Fusing, and 4.5g silica, 14g expanded graphites and 2.5g aliphatic acid are sequentially added, it is stirred (speed 60rpm, time
For 13min) after obtain paraffin melt；Foam copper green body obtained is immersed into paraffin melt, the first stage：It is held at 75 DEG C
It is continuous to impregnate 7min；Second stage：3.5min is persistently impregnated at 48 DEG C, and PCM heat sink materials A3 is obtained after cooling.The PCM measured
The thermal coefficient of heat sink material is 4.8Wrn-1·K-1。
Embodiment 4
It is carried out according to the method for embodiment 1, unlike, relative to 100g paraffin, the dosage of expanded graphite is 10g, two
The dosage of silica is 2g, and the dosage of aliphatic acid is 1g, and the dosage of foam copper green body is 80g, obtains PCM heat sink materials A4.It surveys
The thermal coefficient of the PCM heat sink materials obtained is 4.2Wrn-1·K-1。
Embodiment 5
It is carried out according to the method for embodiment 1, unlike, relative to 100g paraffin, the dosage of expanded graphite is 18g, two
The dosage of silica is 7g, and the dosage of aliphatic acid is 5g, and the dosage of foam copper green body is 90g, obtains PCM heat sink materials A5.It surveys
The thermal coefficient of the PCM heat sink materials obtained is 4.4Wrn-1·K-1。
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (6)
1. a kind of preparation method of PCM heat sink materials for automobile batteries, which is characterized in that the preparation method includes：
(1) foam copper is placed in closed container, and vacuumize process is carried out to closed container；
(2) it is passed through carbonaceous gas into closed container, and foam copper is heated, obtaining surface after its cooling wraps up carbon film
Foam copper green body；Wherein, the temperature of heating is 20-50 DEG C, and the time of heating is 5-10min；
(3) by melted paraffin wax, and silica, expanded graphite and aliphatic acid are sequentially added, paraffin melt is obtained after being stirred；
(4) foam copper green body obtained is immersed into paraffin melt, the first stage：4- is persistently impregnated at 70-80 DEG C
10min；Second stage：2-5min is persistently impregnated at 40-55 DEG C；PCM heat sink materials are obtained after cooling；
Wherein, relative to 100 parts by weight paraffin, the dosage of expanded graphite is 10-18 parts by weight, and the dosage of silica is 2-7
The dosage of parts by weight, aliphatic acid is 1-5 parts by weight, and the dosage of foam copper green body is 80-90 parts by weight.
2. preparation method according to claim 1, wherein relative to 100 parts by weight paraffin, the dosage of expanded graphite is
The dosage of 12-16 parts by weight, silica is 4-5 parts by weight, and the dosage of aliphatic acid is 2-3 parts by weight, the use of foam copper green body
Amount is 82-86 parts by weight.
3. preparation method according to claim 1, wherein carbonaceous gas is carbon dioxide, methane, acetylene, toluene and ring
It is one or more in hexane.
4. preparation method according to claim 1, wherein foam copper is carrying out ultrasound clearly using preceding using acetone or alcohol
It washes and dries.
5. preparation method according to claim 1, wherein in step (3), the speed being stirred is 50-70rpm,
The time being stirred is 10-15min.
6. a kind of PCM heat sink materials for automobile batteries, which is characterized in that the PCM heat sink materials are by claim 1-5
Preparation method described in any one is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317635.2A CN108624291A (en) | 2018-04-10 | 2018-04-10 | PCM heat sink materials and preparation method thereof for automobile batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317635.2A CN108624291A (en) | 2018-04-10 | 2018-04-10 | PCM heat sink materials and preparation method thereof for automobile batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108624291A true CN108624291A (en) | 2018-10-09 |
Family
ID=63705059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810317635.2A Withdrawn CN108624291A (en) | 2018-04-10 | 2018-04-10 | PCM heat sink materials and preparation method thereof for automobile batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108624291A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115844177A (en) * | 2022-12-29 | 2023-03-28 | 北京科技大学 | Portable chargeable self-temperature-control phase-change heat storage sleeping bag |
-
2018
- 2018-04-10 CN CN201810317635.2A patent/CN108624291A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115844177A (en) * | 2022-12-29 | 2023-03-28 | 北京科技大学 | Portable chargeable self-temperature-control phase-change heat storage sleeping bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108219755B (en) | Composite phase-change material with foamed aluminum as matrix, preparation method thereof and heat storage bag | |
| CN102181270A (en) | Composite phase change material for heat dissipation of lithium battery and device | |
| Zhao et al. | Performance assessment of a passive core cooling design for cylindrical lithium‐ion batteries | |
| CN108084971B (en) | Composite phase-change material bag and preparation method thereof | |
| CN205028988U (en) | Battery constant temperature protection device | |
| CN110808431A (en) | A power battery thermal management method and system based on phase change materials | |
| CN108732204A (en) | A kind of the specific heat capacity test method and device of power battery | |
| CN110380155A (en) | A kind of power battery thermal runaway automatic safety device | |
| CN111613741A (en) | A kind of battery internal insulation method and battery and module | |
| CN108624291A (en) | PCM heat sink materials and preparation method thereof for automobile batteries | |
| JPWO2016199631A1 (en) | Moisture content measurement method for electrode, method for producing electrode for lithium ion secondary battery, moisture content measurement device, and moisture content measurement method | |
| CN108373908A (en) | PCM heat sink materials and preparation method thereof for automobile batteries | |
| CN108373907A (en) | PCM heat sink materials and preparation method thereof for automobile batteries | |
| CN205092298U (en) | Take compound heat abstractor of fin and foam heat conduction structure | |
| CN108470961A (en) | PCM heat sink materials and preparation method thereof for automobile batteries | |
| CN103710101B (en) | The preservative oil of lead-acid storage battery terminal and compound method thereof | |
| CN108359412A (en) | PCM heat sink materials and preparation method thereof for automobile batteries | |
| CN207441816U (en) | A kind of ultralow temperature lithium battery assembling shell | |
| CN108624290A (en) | PCM heat sink materials and preparation method thereof for automobile batteries | |
| CN102942904B (en) | Paraffin-felt phase-changing composite heat storage material and heat storage device thereof | |
| CN115612460A (en) | A phase change material for lithium-ion battery thermal management system | |
| CN105694824A (en) | Method for preparing phase-change composite materials applied to hot-water bags | |
| CN208955155U (en) | A kind of samming heat storing plate | |
| CN201146933Y (en) | Heat preservation bag | |
| US20240258493A1 (en) | Method of manufacturing electrodes and drying apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181009 |
|
| WW01 | Invention patent application withdrawn after publication |