CN107785581A - A kind of graphene expanded material and its physical foaming method - Google Patents
A kind of graphene expanded material and its physical foaming method Download PDFInfo
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- CN107785581A CN107785581A CN201610774896.8A CN201610774896A CN107785581A CN 107785581 A CN107785581 A CN 107785581A CN 201610774896 A CN201610774896 A CN 201610774896A CN 107785581 A CN107785581 A CN 107785581A
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- foaming
- graphene
- perforate
- main frame
- organic matter
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to a kind of graphene expanded material and its physical foaming method, graphene expanded material has equally distributed perforate, it is connected between perforate by organic matter wall, the thickness of organic matter wall is, a diameter of the 5 10% of perforate, organic matter wall is PP or PE and organic material, and its foaming method used includes：Material pan feeding step, heating melting steps, pressurization aeration step and melt foaming step, the expanded material is by the way of hole-opening foaming, the diameter of perforate is small, uniformly it is connected by organic matter between perforate, make the weight saving more than 50% of material, substantial amounts of electric charge can be stored rapidly during as battery electrode, and reduce the heat that battery uses, the safety problem of charging blast is avoided the occurrence of, while the graphene expanded material can be reclaimed after and reused.
Description
Technical field
The present invention relates to a kind of expanded material and its foaming method, more particularly to a kind of graphene expanded material and its physics
Foaming method, belong to foaming complex technique field.
Background technology
Graphene has excellent electronic conductivity, big specific surface area（2600m2/g）, good thermal property and machine
Tool property, become the multi-field study hotspot such as the energy, chemical industry, biology.In storage lithium aspect of performance, the theoretical appearance of graphene
Amount reaches 744mAh/g, better than graphite（Theoretical capacity：372mAh/g）, and graphene can increase the binding site with clang, make
Obtaining graphene turns into one of the selection of substitution graphite as clang ion negative material.The resistivity of graphene is about only 1 Ω m,
It is lower than copper or silver, for the material that resistivity in the world is minimum, electric conductivity is best.Using graphene as commercial Li-ion batteries
Conductive agent can greatly enhance the conductive capability of lithium ion battery, but the cost of grapheme material is high, causes lithium ion battery
Cost it is too high, be unfavorable for popularization and application.
But according to the applicant understood, certain defect be present in the graphene battery material on existing market：The volume of battery and again
Amount is big；Heat is high during use, continues using the situation that blast occurs, graphene negative pole end, which does not foam, influences the electricity of battery storage
Lotus amount.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming prior art, there is provided a kind of graphene physical blowing
Method, makes that the foam hole of graphene uniformly gathers, spacing is identical, diameter is small, have that in light weight, heat is few, the charging interval is short and
The advantages of electric charge storage capacity is big.
In order to solve the above technical problems, the present invention provides a kind of graphene expanded material, graphene expanded material has
Equally distributed perforate, be connected between perforate by organic matter wall, the thickness of organic matter wall is 0.01-1000nm, perforate it is straight
Footpath is 5-10% organic matter wall thickness.
The technical scheme that further limits of the present invention is：Organic matter wall is PP or PE and organic material.
A kind of graphene physical foaming method, in the device being made up of foaming main frame, foam extrusion machine and composite structure,
The charging aperture of the discharging opening connection foam extrusion machine of foaming main frame, the extrusion that foaming agent goes out machine are connected with composite structure, foamed
Extruder is provided with liquid adjuvants charging port and inert gas is filled with mouth, it is characterised in that uses following foaming step；
1) material pan feeding step, the loading hopper of input foaming main frame front end after graphene and PP or PE and organic material are mixed
In；
2) heating melting steps, by ten sections of heating-up temperature sections of the main frame that foams, heating-up temperature is successively：80-280 DEG C of material passes through
Melt uniformly after bringing-up section, when the temperature in main frame reaches molten condition, melting charge is outwards extruded by foam extrusion machine；
3) pressurize aeration step, the liquid filling body auxiliary agent into the liquid adjuvants charging port of foaming main frame, while to the stage casing of main frame
It is filled with foamed gas；
4) molten mass is extruded to mould outlet, at the mould outlet above and below be respectively provided with an integer roller, the back segment of integer roller
Multigroup setting roll is also set up, it is shaped on request.
Further, liquid, gas auxiliary component are butane, carbon dioxide, nitrogen etc..
Further, the charge of foamed gas is 30-90% stage casings volume.
The beneficial effects of the invention are as follows：The expanded material is by the way of hole-opening foaming, and the diameter of perforate is small, between perforate
Uniformly it is connected by organic matter, makes the weight of material lighter, substantial amounts of electric charge can be stored when material is as battery electrode, and
The heat of battery charging and discharging is reduced, avoids the occurrence of the safety problem of charging blast, while can after the graphene expanded material use
Reused with recovery.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Embodiment 1
A kind of graphene expanded material that the present embodiment provides, graphene expanded material have equally distributed perforate 1, perforate 1
Between be connected by organic matter wall 2, the thickness of organic matter wall 2 is 0.01-1000nm, a diameter of 5-10% organic matters wall of perforate 1
Thickness, organic matter wall are HD900P materials.
A kind of graphene physical foaming method, in the device being made up of foaming main frame, foam extrusion machine and composite structure,
The charging aperture of the discharging opening connection foam extrusion machine of foaming main frame, the extrusion that foaming agent goes out machine are connected with composite structure, foamed
Extruder is provided with liquid adjuvants charging port and inert gas is filled with mouth, it is characterised in that uses following foaming step；
1) material pan feeding step, after graphene and HD900V are mixed in the loading hopper of input foaming main frame front end；
2) heating melting steps, ten sections of heating-up temperature sections of the main frame that foams are heated successively, temperature is：After material is by bringing-up section
Melting is uniform, and when the temperature in main frame reaches molten condition, melting charge is outwards extruded by foam extrusion machine；
3) pressurize aeration step, the liquid filling body auxiliary agent into the liquid adjuvants charging port of foaming main frame, while to the stage casing of main frame
It is filled with foamed gas；
4) molten mass is extruded to mould outlet, at the mould outlet above and below be respectively provided with a shaping roller, the back segment of integer roller
Multigroup setting roll is also set up,
Liquid adjuvants composition is butane, carbon dioxide, nitrogen etc..
The charge of foamed gas is 30-90% stage casings volume.
For the expanded material by the way of hole-opening foaming, the diameter of perforate is small, is uniformly connected by organic matter between perforate,
Make the weight of material lighter, substantial amounts of electric charge can be stored when material is as battery electrode, and reduce the heat of battery charging and discharging
Amount, the safety problem of charging blast is avoided the occurrence of, while the graphene expanded material can be reclaimed after and reused.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.
Claims (5)
1. a kind of graphene expanded material, it is characterised in that the graphene expanded material has equally distributed perforate, described
It is connected between perforate by organic matter wall, the thickness of the organic matter wall is 0.01-1000nm, a diameter of 5- of the perforate
10% organic matter wall thickness.
A kind of 2. graphene expanded material according to claim 1, it is characterised in that the organic matter wall be PP or PE and
Organic material.
3. a kind of graphene physical foaming method, in the device being made up of foaming main frame, foam extrusion machine and composite structure, institute
The discharging opening for stating foaming main frame connects the charging aperture of the foam extrusion machine, and the foaming agent goes out the extrusion and composite structure of machine
It is connected, the foam extrusion machine is provided with liquid adjuvants charging port and inert gas is filled with mouth, it is characterised in that use and such as issue
Steep step；
Material pan feeding step, after graphene and PP or PE and organic material are mixed in the loading hopper of input foaming main frame front end；
Heating melting steps, ten sections of heating-up temperature sections of the main frame that foams are heated successively, the temperature heated successively is：80-280
DEG C, material is uniform by being melted after bringing-up section, and when the temperature in main frame reaches molten condition, melting charge is passed through into foaming extrusion
Machine is outwards extruded；
Pressurization aeration step, the liquid filling body auxiliary agent into the liquid adjuvants charging port of foaming main frame, while filled to the stage casing of main frame
Enter foamed gas；
Melt foaming step, melts and extrudes molten mass to mould outlet, at the mould outlet above and below be respectively provided with an integer
Roller, the back segment of integer roller also set up multigroup setting roll, and it is shaped on request.
A kind of 4. graphene physical foaming method according to claim 3, it is characterised in that the liquid, gas auxiliary agent into
It is divided into butane, carbon dioxide and nitrogen.
5. a kind of graphene physical foaming method according to claim 3, it is characterised in that the foamed gas are filled with
Measure as 30-90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774896.8A CN107785581A (en) | 2016-08-31 | 2016-08-31 | A kind of graphene expanded material and its physical foaming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774896.8A CN107785581A (en) | 2016-08-31 | 2016-08-31 | A kind of graphene expanded material and its physical foaming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107785581A true CN107785581A (en) | 2018-03-09 |
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ID=61450187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610774896.8A Pending CN107785581A (en) | 2016-08-31 | 2016-08-31 | A kind of graphene expanded material and its physical foaming method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004091015A1 (en) * | 2003-04-09 | 2004-10-21 | Graham Simpson Murray | Conductive polymer, conductive polymer compositions and their use |
| CN102718983A (en) * | 2012-06-28 | 2012-10-10 | 四川大学 | Preparation method of polymer-based conductive microporous foam composite material |
| CN103434240A (en) * | 2013-09-03 | 2013-12-11 | 徐晓冰 | Polypropylene physical foaming composite board and manufacturing process thereof |
| CN203543132U (en) * | 2013-11-07 | 2014-04-16 | 徐晓冰 | Special production line for automotive interior parts |
| US20160043384A1 (en) * | 2014-08-07 | 2016-02-11 | Aruna Zhamu | Graphene foam-protected anode active materials for lithium batteries |
-
2016
- 2016-08-31 CN CN201610774896.8A patent/CN107785581A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004091015A1 (en) * | 2003-04-09 | 2004-10-21 | Graham Simpson Murray | Conductive polymer, conductive polymer compositions and their use |
| CN102718983A (en) * | 2012-06-28 | 2012-10-10 | 四川大学 | Preparation method of polymer-based conductive microporous foam composite material |
| CN103434240A (en) * | 2013-09-03 | 2013-12-11 | 徐晓冰 | Polypropylene physical foaming composite board and manufacturing process thereof |
| CN203543132U (en) * | 2013-11-07 | 2014-04-16 | 徐晓冰 | Special production line for automotive interior parts |
| US20160043384A1 (en) * | 2014-08-07 | 2016-02-11 | Aruna Zhamu | Graphene foam-protected anode active materials for lithium batteries |
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Application publication date: 20180309 |