CN206940439U - A kind of saggar for being used to prepare grapheme material - Google Patents
A kind of saggar for being used to prepare grapheme material Download PDFInfo
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- CN206940439U CN206940439U CN201720658026.4U CN201720658026U CN206940439U CN 206940439 U CN206940439 U CN 206940439U CN 201720658026 U CN201720658026 U CN 201720658026U CN 206940439 U CN206940439 U CN 206940439U
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Abstract
It the utility model is related to a kind of saggar for being used to prepare grapheme material, the saggar includes saggar main body and casket lid, the top of the saggar main body is opening, the casket lid is placed on the top of saggar main body, wherein, the saggar main body includes the external cavity that outer casket wall body and outer casket wall body are formed, and the outer casket wall body is provided with a breach so that external cavity is connected with the external world；Casket in one is additionally provided with the saggar main body, the interior casket includes the internal cavity that interior casket wall body and interior casket wall body are formed, and the internal cavity is connected with external cavity.
Description
Technical field
It the utility model is related to a kind of saggar for being used to prepare grapheme material.
Background technology
Due to the development of new energy technology particularly electric vehicle engineering, to the high-performance power of high power capacity high power density
Battery etc. proposes great demand.As a kind of two-dimension nano materials of high conductivity, graphene is considered as high performance dynamic
One of critical material of power battery conductive agent.
The preparation method of existing graphene is chemistry redox method, mechanical stripping method, CVD vapour deposition processes etc..So
And the graphene manufactured by those methods is defective.Such as using chemistry redox method, although the thickness of graphene
Smaller, individual layer rate is high, but graphene can be caused compared with havoc in oxidizing process, produces cavity and introduces other functions
The metal impurities such as group, substantial amounts of element sulphur and iron-cobalt-nickel manganese, and the electrical conductivity of graphene is largely effected on, cause subsequent applications
The performance of battery is damaged when battery.Mechanical stripping method is used, although the electrical conductivity of graphene is high, the thickness of graphene be present
The shortcomings that degree is thicker, the number of plies is more, and this method greatest problem is：Used raw material be crystalline flake graphite, expansible graphite or
Person expands worm graphite, and when physical mechanical stripping is carried out by liquid phase or gas phase the methods of, the inside of the raw material is with big
The element sulphur of amount, and the impurity such as iron-cobalt-nickel manganese potassium calcium of residual, the content of impurity is significantly exceeded, thus can damage the property of battery
Energy.Using CVD vapour deposition processes, although obtained graphene has the characteristics of thinner thickness of individual layer or bilayer, electrical conductivity
It is high, but due to that need to utilize the substrate with substantial amounts of metallic nickel etc., the substrate need to carry out dissolving stripping, cause graphene
Yield is extremely low, is not used as on a large scale into a tonne other application.
Utility model content
In view of this, it is necessory to provide a kind of casket that can be used for preparing the excellent grapheme material of electric conductivity on a large scale
Alms bowl.
The utility model provides a kind of saggar for being used to prepare grapheme material, and the saggar includes saggar main body and casket
Lid, the top of the saggar main body is opening, and the casket lid is placed on the top of saggar main body, wherein,
The saggar main body includes the external cavity that outer casket wall body and outer casket wall body are formed, and the outer casket wall body is provided with one and lacked
Mouthful so that external cavity is connected with the external world；
Casket in one is additionally provided with the saggar main body, the interior casket includes the interior sky that interior casket wall body and interior casket wall body are formed
Chamber, the top of the interior casket is opening, and the internal cavity is connected with external cavity；
The casket lid includes casket caping and casket tegmental wall body, and the casket tegmental wall body is placed in the external cavity of the saggar main body,
The height of the casket tegmental wall body is less than the height of the outer casket wall body.
Preferably, the interior casket wall body is made up of a pair of first baffles and a pair of second baffles, the height of the first baffle
Height of the degree more than second baffle.
Preferably, the casket caping is made up of a top plate and the first recess, and first recess is formed at the top plate
Surrounding, first recess minimum dimension of either direction on the surface of the top plate is all higher than the outer of the saggar main body
The thickness of casket wall body.
Preferably, at least one second recess is set in first recess, length of second recess in x directions is more than institute
State the thickness of the outer casket wall body of saggar main body.
Preferably, the material of the saggar is high-density graphite.
Compared with prior art, the saggar has advantages below：
It is (interior that the inner space of the saggar main body is divided into three interconnected subspaces by the interior casket, casket tegmental wall body
Cavity, the first sub- exocoel, the second sub- exocoel).The design of the breach, interior casket, casket tegmental wall body, outer casket wall body of outer casket wall body is formed should
The structure of special complexity " labyrinth " formula, advantageously forms longer and sinuous gas passage.The breach of the outer casket wall body
Effect be so that external cavity is in communication with the outside, can be by caused impurity in raw material during grapheme material is prepared
Gas such as water, sulfur dioxide (SO2) emissions are to the external world.When being placed in graphite oxide in the internal cavity of the interior casket, in the effect of high temperature
Under, the graphite oxide of powdery obtains grapheme material, grapheme material and sulfur dioxide after the stripping reduction of explosion type occurs
The air-flowing type mixture formed Deng gas flows together, when running into interior casket wall body (i.e. first baffle, second that take blocking effect
Baffle plate), casket tegmental wall body and during outer casket wall body, air-flowing type mixture can collide therewith, so that the gas such as sulfur dioxide
Discharge, graphene powder are deposited, and greatly improve the recovery rate of grapheme material.
The structure of the saggar is simple, and the method for preparing the saggar is simple, and raw material is easy to get, is cheap, is adapted to large-scale
Commercial application.
When in use, graphite oxide is put into the saggar, then graphite oxide is reduced at high temperature to obtain stone
Black alkene material.
Relative to used in existing method prepare container or substrate for, because the material of the saggar is high density stone
Ink, thus avoid introducing other extra impurity, while the saggar is subsequently shelled as Space, Place is prepared without such as CVD method
The step of from substrate, greatly facilitate the preparation of grapheme material.
Brief description of the drawings
Fig. 1 is the structural representation of saggar described in the utility model.
Fig. 2 is the decomposing schematic representation of saggar described in Fig. 1.
Fig. 3 is the structural representation of the saggar main body of saggar described in Fig. 1.
Fig. 4 is the structural representation of the casket lid of saggar described in Fig. 1.
Wherein, 10 casket lid is represented, 10a represents casket caping, and 10a1 represents top plate；10a2 represents the first recess, and 10a3 is represented
Second recess, 10b represent casket tegmental wall body, and 20 represent saggar main body, and 20a represents outer casket wall body, 20b indication notch, and 20c represents outer
Cavity, 30 represent in casket, 30a represent internal cavity, 30b represent first baffle, 30c represent second baffle.
Specific examples below will further illustrate the utility model with reference to above-mentioned accompanying drawing.
Embodiment
The saggar provided by the utility model for being used to prepare grapheme material is described further below with reference to accompanying drawing.
The utility model provides a kind of saggar for being used to prepare grapheme material.Refer to Fig. 1 to Fig. 4, the saggar bag
Include casket lid 10 and saggar main body 20.The top of the saggar main body 20 is opening, and the casket lid 10 is placed on the top of saggar main body 20
Portion.The saggar main body 20 and casket lid 10 are separate, and the casket lid 10 is not tightly fastened in the saggar main body 20 i.e.
The two is not combined into one.The casket lid 10 is only placed on the top of the saggar main body 20 and used simultaneously.Because
In the graphene preparation process, due to the particular design of saggar, the flour such as graphite raw material in saggar substantially in saggar,
And can't largely fly to the external world, only very small amount to escape, it can be neglected herein.Therefore, casket lid 10 need not be fixed on saggar main body 20,
This reduces complexity prepared by saggar, the use of saggar are also more simple.
Referring to Fig. 3, the saggar main body 20 includes the external cavity that outer casket wall body 20a and outer casket wall body 20a is formed
20c.The outer casket wall body 20a is provided with a breach 20b so that external cavity 20c is connected with the external world.Put when by graphite oxide powder
When high temperature reduction is carried out in the saggar main body 20, caused water, sulfur dioxide etc. can be via on the outer casket wall body 20a
Breach 20b and escape.Can also be produced while water, sulfur dioxide etc. escape the graphene that obtains reduction and interior casket wall body and
Outer casket wall body 20a is collided and is fallen the effect of deposition, and lifts the recovery rate of graphene.The shape of the saggar main body 20 is not
Limit, as long as there is an external cavity 20c.The outer casket wall body 20a is a platy structure, can be the plate of plane, or curved surface
Plate.The size and shape of the breach 20b does not limit, as long as the external cavity 20c can be in communication with the outside.
Casket 30 in one are additionally provided with the saggar main body 20.The interior casket 30 is formed in one with the saggar main body 20.
The interior casket 30 includes the internal cavity 30a that interior casket wall body and interior casket wall body are formed.The top of the interior casket 30 is opening.It is described
Internal cavity 30a is connected with external cavity 20c.The shape of the interior casket 30 can be identical with the shape of the saggar main body 20, also may be used
Differ.The shape of the interior casket 30 can be cylinder, cube etc..The interior casket wall body can be the plate construction of plane,
It can be the plate construction of curved surface.
When the plate construction that the interior casket wall body is plane, Fig. 2 and Fig. 3, the saggar main body 20 and interior casket are referred to
30 shape is cuboid, and the interior casket wall body can be made up of a pair of first baffle 30b and a pair of second baffle 30c.It is fixed
The justice first baffle 30b and second baffle 30c is respectively the first baffle in the size of z directions (i.e. vertical direction)
30b height H3, institute second baffle 30c height H4, now H3≥H4.In preparation process, graphite oxide powder explodes
Graphene powder, the air-flowing type mixture one that the gas such as graphene powder and sulfur dioxide is formed are obtained after the stripping reduction of formula
Flowing is played, when running into the interior casket wall body to take blocking effect, casket tegmental wall body and outer casket wall body, air-flowing type mixture can be sent out therewith
Raw collision, so that the gas such as sulfur dioxide is discharged, graphene powder is deposited.Occur to increase air-flowing type mixture
The probability and number of collision, it is preferred that there is a height between first baffle 30b height and second baffle 30c height
Difference, H3＞ H4。
When that can be provided with casket breach in one on the plate construction that the interior casket wall body is curved surface, the interior casket wall body, (figure is not
Show).
In above-mentioned design, the difference in height between the interior casket breach or first baffle 30b and second baffle 30c
It is for being beneficial to set up more obstruction between internal cavity 30a and external cavity 20c, makes the gas such as graphene powder and sulfur dioxide
The probability of the collision of air-flowing type mixture and the interior casket wall body and outer casket wall body that take blocking effect that body is formed is sent out with number
Life is collided and deposited, and avoids graphene powder from all leaving saggar with air-flow, so as to improve the yield of final graphene powder.
In other words, the saggar is designed to such complexity, is to increase the passage length of gas circulation, changes the discharge side of air-flow
To the mixed airflow and interior casket wall body, casket tegmental wall body and outer casket that the raising gas such as graphene powder and sulfur dioxide is formed
The collision probability of wall body, change the flow direction of graphene powder in air-flow, cause the sinking of more graphene powders to deposit, carry
The yield of high graphene powder.
The casket lid 10 includes casket caping 10a and casket tegmental wall body 10b.The casket tegmental wall body 10b is placed in the saggar main body
In 20 external cavity 20c.It is respectively described to define the size of the casket tegmental wall body 10b and outer casket wall body 20a in vertical z directions
Casket tegmental wall body 10b height H1, outer casket wall body 20a height H2.The height H of the casket tegmental wall body 10b1Less than the outer casket wall
Body 20a height H2, the purpose of this design is, described when the casket lid 10 to be placed on to the top of the saggar main body 20
Casket tegmental wall body 10b is stretched into the external cavity 20c of the saggar main body 20, and by the external cavity 20c point for be interconnected the
The one sub- sub- exocoel 20c2 of exocoel 20c1 and second.This is specifically designed, i.e., in casket 30, casket tegmental wall body 10b by the saggar main body
20 inner space is divided into three interconnected subspaces (internal cavity 30a, the first sub- exocoel 20c1, the second sub- exocoel
20c2), therefore when being placed in graphite oxide in the saggar main body 20, in the presence of high temperature, the graphite oxide of powdery exists
The graphene powder formed after reducing, can be by interior casket wall body (i.e. first baffle 30b, second baffle 30c), casket tegmental wall body
10b, outer casket wall body 20a collision repeatedly and deposit, obtain the less grapheme material of the number of plies.
Fig. 2 and Fig. 4 are referred to, the casket lid 10 includes the casket caping 10a and casket tegmental wall body 10b of one.The casket lid
10 form and dimension does not limit.Define the length that sizes of the casket caping 10a in x-axis and y-axis direction is casket caping 10a
Degree and width.The casket tegmental wall body 10b is located at the close medium position of the casket caping 10a.It is specifically, referring to Fig. 4, described
Casket caping 10a is made up of a top plate 10a1 and the first recess 10a2.The first recess 10a2 is formed at the top plate 10a1
Surrounding, i.e., described top plate 10a1 edge surrounding caves inward to form the first recess 10a2, i.e., described top plate 10a1's
The thickness of edge surrounding is located at saggar compared with the thinner thickness of top plate 10a1 center section so that casket lid 10 is comparatively stable
Above main body 20, excessive movement does not occur.Preferably, the first recess 10a2 takes up an official post on the surface of the top plate 10a1
The minimum dimension in one direction is all higher than the outer casket wall body 20a of the saggar main body 20 thickness.When being shaped as the casket lid 10
During rectangular plate-like, minimum dimensions of the first recess 10a2 in x directions and y directions is all higher than the outer casket of the saggar main body 20
Wall body 20a thickness D2.The purpose of this decision design is, when graphite oxide is placed in external cavity 20c, the casket caping
10a top plate 10a1 can be stretched into partly in the external cavity 20c, and reduces the area of the breach 20b as far as possible, and then is being ensured
While the external cavity 20c is connected with the external world, powdery graphite oxide is restricted in the external cavity 20c, powdery oxidation
More collisions occur between graphite.
Optionally, Fig. 2 and Fig. 4 is referred to, at least one second recess 10a3 can be set in the first recess 10a2.Described
Dimension Ds of the two recess 10a3 on outer casket wall body 20a thickness direction1More than the outer casket wall body 20a of the saggar main body 20
Thickness D2.Specifically, when the saggar main body 20 is cuboid, length Ds of the second recess 10a3 in x directions1More than institute
State the outer casket wall body 20a of saggar main body 20 thickness D2.The effect of the second recess 10a3 is, as the external cavity
The extra passage that 20c is connected with the external world, and beneficial to the discharge of micromolecular water, carbon dioxide etc..
In the present embodiment, the shape of the saggar main body 20 and interior casket 30 is cuboid, the first gear of the interior casket 30
Plate 30b height is more than second baffle 30c height, and a pair of second recesses are set in the first recess 10a2 of the casket lid 10
10a3。
The material of the saggar is high-density graphite.The high-density graphite refers to graphite raw material passing through high temperature and height
Pressure handles obtained graphite.Specifically, graphite raw material at a temperature of 2400 degrees Celsius~3000 degrees Celsius and is applied in 1
The pressure treatment of atmospheric pressure~3.6 atmospheric pressure, it can obtain the high-density graphite.Preferably, graphite raw material is taken the photograph 2500
At a temperature of family name degree~2800 degree Celsius and the pressure treatment of 3.6 atmospheric pressure is applied in, can obtain the high-density graphite.Institute
State graphite raw material to be commercially available, will not be described here.It is appreciated that by graphite raw material by high temperature and HIGH PRESSURE TREATMENT it
Afterwards, the step of also carrying out a turnning and milling, to obtain the saggar with given shape.
Because the material of the saggar is high-density graphite, thus tolerable high temperature, and due to preparing graphene material
Element is identical contained by material, is carbon, therefore, does not bring extra impurity.For it is existing prepare grapheme material when
The shortcomings that dust caused by powdered graphite material density is small is easily flown upward without easily being fixed, herein described saggar specialized application
In the preparation of grapheme material, it can conveniently accommodate raw material and prepare grapheme material on a large scale.The structure of the device is also simple
It is single, easily prepare, cost is relatively low, beneficial to industrial applications.
The explanation of above example is only intended to help and understands method and its core concept of the present utility model.It should refer to
Go out, for those skilled in the art, can also be to this on the premise of the utility model principle is not departed from
Utility model carries out some improvement and modification, and these are improved and modification also falls into the protection domain of the utility model claims
It is interior.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (5)
1. a kind of saggar for being used to prepare grapheme material, it is characterised in that the saggar includes saggar main body and casket lid, described
The top of saggar main body is opening, and the casket lid is placed on the top of saggar main body, wherein,
The saggar main body includes the external cavity that outer casket wall body and outer casket wall body are formed, and the outer casket wall body is provided with a breach,
So that external cavity is connected with the external world；
Casket in one is additionally provided with the saggar main body, the interior casket includes the internal cavity that interior casket wall body and interior casket wall body are formed,
The top of the interior casket is opening, and the internal cavity is connected with external cavity；
The casket lid includes casket caping and casket tegmental wall body, and the casket tegmental wall body is placed in the external cavity of the saggar main body, described
The height of casket tegmental wall body is less than the height of the outer casket wall body.
2. the saggar as claimed in claim 1 for being used to prepare grapheme material, it is characterised in that the interior casket wall body is by a pair
First baffle and a pair of second baffle compositions, the height of the first baffle are more than the height of second baffle.
3. the saggar as claimed in claim 1 for being used to prepare grapheme material, it is characterised in that the casket caping is by a top plate
And the first recess composition, first recess is formed at the surrounding of the top plate, table of first recess in the top plate
The minimum dimension of either direction is all higher than the thickness of the outer casket wall body of the saggar main body on face.
4. the as claimed in claim 3 saggar for being used to prepare grapheme material, it is characterised in that first recess set to
Few one second recess, length of second recess in x directions are more than the thickness of the outer casket wall body of the saggar main body.
5. the saggar as claimed in claim 1 for being used to prepare grapheme material, it is characterised in that the material of the saggar is height
Density graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720658026.4U CN206940439U (en) | 2017-06-08 | 2017-06-08 | A kind of saggar for being used to prepare grapheme material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720658026.4U CN206940439U (en) | 2017-06-08 | 2017-06-08 | A kind of saggar for being used to prepare grapheme material |
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| Publication Number | Publication Date |
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| CN206940439U true CN206940439U (en) | 2018-01-30 |
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| CN201720658026.4U Active CN206940439U (en) | 2017-06-08 | 2017-06-08 | A kind of saggar for being used to prepare grapheme material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098338A (en) * | 2017-06-08 | 2017-08-29 | 乌兰察布市大盛石墨新材料股份有限公司 | A kind of grapheme material and preparation method thereof, the saggar for preparing graphene |
-
2017
- 2017-06-08 CN CN201720658026.4U patent/CN206940439U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098338A (en) * | 2017-06-08 | 2017-08-29 | 乌兰察布市大盛石墨新材料股份有限公司 | A kind of grapheme material and preparation method thereof, the saggar for preparing graphene |
| CN107098338B (en) * | 2017-06-08 | 2023-07-18 | 乌兰察布市大盛石墨新材料股份有限公司 | Graphene material, preparation method thereof and sagger for preparing graphene |
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