CN105036125B - Lithium cell cathode material graphitizing furnace and graphitization technique - Google Patents
Lithium cell cathode material graphitizing furnace and graphitization technique Download PDFInfo
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- CN105036125B CN105036125B CN201510562328.7A CN201510562328A CN105036125B CN 105036125 B CN105036125 B CN 105036125B CN 201510562328 A CN201510562328 A CN 201510562328A CN 105036125 B CN105036125 B CN 105036125B
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 24
- 239000010406 cathode material Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005087 graphitization Methods 0.000 title claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 176
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 124
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 46
- 239000010439 graphite Substances 0.000 claims abstract description 46
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims description 13
- 239000006229 carbon black Substances 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 13
- 239000004965 Silica aerogel Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000002006 petroleum coke Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000338 in vitro Methods 0.000 abstract description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011329 calcined coke Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention discloses a kind of lithium cell cathode material graphitizing furnace, including the rectangle body of heater surrounded by fire resisting concrete burner wall, fire resisting concrete stove tail wall and both sides fire resisting concrete wall, conductive electrode is provided with burner wall and stove tail wall, conductive electrode one end stretches to furnace interior, one end reaches burner wall, stove tail wall Ligation in vitro power supply, carbon slab casing is provided with galley body, the carbon slab casing includes the graphite block wall one at two ends, the carbon slab wall of both sides, upper carbon slab layer, lower carbon slab layer, and the carbon block heat generating core being arranged in carbon slab casing.The present invention is based on acheson furnace, carbon slab casing is set in stove, and between carbon slab casing and stove wall filling heat insulating wall, utilize the carbon block heat generating core heating being arranged in carbon slab casing, it can largely reduce energy consumption, improve production capacity, shove charge process of coming out of the stove strictly is controlled, the product quality of production is high, is lost small.
Description
Technical field
The invention belongs to lithium cell cathode material preparation field, and in particular to a kind of lithium cell cathode material graphitizing furnace with
And using the graphitization technique of the stove.
Background technology
The method of graphitization lithium cell cathode material has two kinds currently on the market, and one kind is to load graphite in graphitizing furnace
Crucible, graphite crucible makes resistance material and insulation material, energy consumption of calcined coke built with lithium cell cathode material, graphite crucible outside
Height, production capacity is low, and loss is big, and two be that in cascade graphitizing furnaces, using quincunx graphite crucible, crucible is built with cathode of lithium battery
Material, carries out graphitization, and this method is higher there is also energy consumption, and production capacity is low, the drawbacks of being lost big.
The content of the invention
It is low that the technical problem to be solved in the invention is to provide a kind of energy consumption, and yield is high, good product quality, and small stone is lost
Mo Hualu and using the stove to the graphited production technology of lithium cell cathode material.
To solve the above problems, the technical solution used in the present invention is：
A kind of lithium cell cathode material graphitizing furnace, including by fire resisting concrete burner wall, fire resisting concrete stove tail wall and both sides
The rectangle body of heater that fire resisting concrete wall is surrounded, is provided with conductive electrode, conductive electrode one end is stretched on burner wall and stove tail wall
Enter to furnace interior, one end, which is reached, is provided with carbon slab case in burner wall, stove tail wall Ligation in vitro power supply, galley body
Body, the carbon slab casing includes the graphite block wall one at two ends, the carbon slab wall of both sides, upper carbon slab layer, lower carbon slab layer, and is arranged at
The body frame of carbon block heat generating core in carbon slab casing, the graphite block wall one of both end of which and the carbon slab walled of both sides into carbon slab casing
Frame, framework bottom surface is lower carbon slab layer, and top surface is upper carbon slab layer, the graphite block wall one at two ends and the burner wall at two ends, stove tail wall
Graphite bisque one, graphite block wall two, graphite bisque two, the carbon slab wall of both sides and the fire resisting concrete wall of both sides are set gradually between body
Between carbon black heat-insulation layer, upper carbon slab layer upper berth drainage layer and heat-insulation layer are set.
Further, the wall outer side of graphitizing furnace both sides is provided with the fire resisting concrete column with wall one, several fire resisting concretes
Column is uniformly distributed in the wall outer side of both sides.
Further, the carbon black insulation layer thickness between the carbon slab wall of carbon slab casing both sides and the wall of graphitizing furnace both sides
For 450-550mm.
Further, there is the silica aerogel layer for insulation on the furnace bottom upper berth of graphitizing furnace, between furnace bottom and lower carbon slab layer,
The silica aerogel layer thickness is 500mm.
It is preferred that, the carbon block heat generating core is layering by a plurality of strip heat generating core and formed, and is vertically arranged at carbon slab casing
In, two ends connect with the graphite block wall one of carbon slab tank ends respectively, and bottom surface connects with lower carbon slab layer, top surface and upper carbon slab layer phase
Connect.
Further, in addition to temperature tube, the temperature tube is arranged on the side wall of graphitizing furnace, and one end passes through wall
Body, is stretched into carbon slab casing also cross the carbon slab wall of carbon slab casing, and the other end is located at the outside of the side wall of graphitizing furnace,
The length that the temperature tube is stretched into carbon slab casing is 150mm, the centrally disposed " u "-shaped hole of temperature tube.
A kind of lithium cell cathode material graphitization technique, comprises the following steps：
1. first, the 500mm silica aerogel layers for insulation are spread in graphitizing furnace bottom, carbon slab under first being placed on silica aerogel layer
Layer, then assembles the other parts of assembling carbon slab casing, is stayed between the both sides carbon slab wall of carbon slab casing and the wall of graphitizing furnace
There are a 450-550mm gaps, inner space loads insulation carbon black, form carbon black heat-insulation layer, two ends graphite block wall one and burner wall,
Left between stove tail wall and graphite block wall two is assembled in 200mm gaps, gap, graphite block wall two and graphite block wall one and burner
Graphite powder is loaded in gap between wall, stove tail wall, graphite bisque one, graphite bisque two is formed, assembles in assembling process
Set temperature tube, conductive electrode；
2. step 1. after the completion of, dust-proof canvas roof is built on whole graphitizing furnace, canvas roof top and surrounding are closed,
Prevent foreign matter from falling into stove, while conscientiously removing the debris in stove with dust catcher；
3. shove charge, shove charge staff garments are cleaned out with dust catcher, and shove charge instrument must not be infected with other debris, shove charge instrument
Using stainless steel or plastic tool, negative material loading furnace process will avoid airborne dust, it is to avoid loss, and carbon block is assembled in shove charge
Heat generating core, be filled to poor 1-2mm it is full when stop, above fit on carbon slab layer, prevent foreign matter from falling into stove；
4. upper carbon slab layer paving 200mm raw petroleum cokes drainage layer above, drainage layer upper berth 400mm quartz sands: coke powder=4: 6
Heat-insulation layer, then removes paulin inspection, and conductive electrode connection power supply prepares power transmission；
5. at 600 DEG C, 1200 DEG C during power transmission, 2100 DEG C of these three temperature spots heatings are slow, real-time with infrared radiation thermometer
Monitoring temperature, when measuring all temperature tube temperature and reaching 3000 DEG C, keeps 12 hours 3000 DEG C of temperature, terminates power transmission；
6. after power transmission terminates, cooled down using nature normal temperature cooling means, until can come out of the stove；
7. come out of the stove, remove after top heat-insulation layer, drainage layer, upper carbon slab layer is taken canvas roof when being less than 40 DEG C and come out of the stove, canvas roof
Top and surrounding are closed, and prevent debris from falling into product, staff garments' shoes and hats of coming out of the stove are cleaned out with dust catcher, go out furnaceman
Tool uses stainless steel, prevents magnetisable material from falling into product.
It is using the beneficial effect produced by above-mentioned technical proposal：
The present invention sets carbon slab casing based on acheson furnace in stove, and in carbon slab casing and stove wall
Filling heat insulating wall between body, is heated using the carbon block heat generating core being arranged in carbon slab casing, can largely reduce energy consumption, improves production
Can, shove charge process of coming out of the stove strictly is controlled, and the product quality of production is high, is lost small, is produced using the stove under the technique of the present invention,
Production capacity can be greatly improved, production cost is reduced, and product quality is relatively reliable.
Brief description of the drawings
Fig. 1 is graphitizing furnace overlooking the structure diagram of the present invention；
Fig. 2 is carbon slab casing side structure schematic view of the present invention；
Fig. 3 is temperature tube structural representation of the present invention；
Wherein：1st, graphite bisque one, 2, graphite block wall two, 3, conductive electrode, 4, burner wall, 5, graphite bisque two, 6,
Wall, 7, column, 8, carbon black heat-insulation layer, 9, carbon slab wall, 11, temperature tube, 12, carbon block heat generating core, 13, graphite block wall one, 14, stove
Tail wall, 15, upper carbon slab layer, 16, lower carbon slab layer, 17, " u "-shaped hole.
Embodiment
Invention is described in further detail below in conjunction with the accompanying drawings：
The present invention sets carbon slab casing based on acheson furnace in stove, and in carbon slab casing and stove wall
Filling heat insulating wall between body, is heated using the carbon block heat generating core being arranged in carbon slab casing, to lithium cell cathode material graphitization.
As shown in figure 1, graphitizing furnace of the present invention is included by fire resisting concrete burner wall 4, fire resisting concrete stove tail wall 14 and both sides
The rectangle body of heater that fire resisting concrete wall 6 is surrounded, is provided with conductive electrode 3, conductive electrode 3 on burner wall 4 and stove tail wall 14
One end stretches to furnace interior, and one end is reached in the outer connection power supply of burner wall 4, stove tail wall 14, galley body
Provided with carbon slab casing, the carbon slab casing includes the graphite block wall 1 at two ends, the carbon slab wall 9 of both sides, upper carbon slab layer 15, lower charcoal
Flaggy 16, and the carbon block heat generating core 12 being arranged in carbon slab casing, the graphite block wall 1 of both end of which and the carbon slab of both sides
Wall 9 surrounds the main body frame of carbon slab casing, and framework bottom surface is lower carbon slab layer 16, and top surface is upper carbon slab layer 15, the graphite block at two ends
Graphite bisque 1, graphite block wall 22, graphite powder are set gradually between wall 1 and the burner wall 4 at two ends, stove tail wall 14
Layer 25, sets carbon black heat-insulation layer 8, the 15 upper berth drainage of upper carbon slab layer between the carbon slab wall 9 of both sides and the fire resisting concrete wall 6 of both sides
Layer and heat-insulation layer.
For the stable and firm degree of the wall 6 (length direction) that ensures graphitizing furnace both sides, the outside of wall 6 in both sides
Provided with the fire resisting concrete column 7 with wall one, several fire resisting concrete columns 7 are uniformly distributed in the wall outer side of both sides.
In order to ensure heat insulation effect, thermal loss is reduced, it is ensured that in-furnace temperature, the carbon slab wall 9 of the carbon slab casing both sides
The thickness of carbon black heat-insulation layer 8 between the wall 6 of graphitizing furnace both sides is 450-550mm；The furnace bottom upper berth of the graphitizing furnace
There is the silica aerogel layer for insulation, between furnace bottom and lower carbon slab layer 16, and silica aerogel layer thickness is 500mm.
In order to ensure heating-up temperature, homogeneous heating is realized, product quality is improved, described carbon block heat generating core 12 sets number
It is individual, it is uniformly distributed in carbon slab casing, each carbon block heat generating core is layering by a plurality of strip heat generating core and formed, and is vertically arranged at
In carbon slab casing, two ends connect with the graphite block wall 1 of carbon slab tank ends respectively, and bottom surface connects with lower carbon slab layer 16, top surface
Connect with upper carbon slab layer 15.
In order to grasp the heating-up temperature in stove in real time, product quality, a side wall of the present invention in graphitizing furnace are controlled
Several temperature tubes 11 are installed, one end of the temperature tube 11 passes through wall 6, also cross the carbon slab wall 9 of carbon slab casing on body
Stretch into carbon slab casing, the other end is located at the outside of the side wall 6 of graphitizing furnace, the temperature tube 11 is stretched into carbon slab casing
Length be 150mm, the centrally disposed " u "-shaped hole 17 of temperature tube.During thermometric, by inert gas argon gas from the one of " u "-shaped hole
End is passed through, and argon gas is that can be flowed out along " u "-shaped hole from its other end, so that the gas that interference temperature in firm temperature tube is determined is arranged
Go out；Then argon gas one end is passed through using infrared radiation thermometer alignment " u "-shaped hole, determines temperature.
Based on above-mentioned lithium cell cathode material graphitizing furnace, the lithium cell cathode material graphitization technique of use, including with
Lower step：
1. first, the 500mm silica aerogel layers for insulation are spread in graphitizing furnace bottom, carbon slab layer under first being placed on silica aerogel layer
16, the other parts of assembling carbon slab casing are then assembled, between the both sides carbon slab wall 9 and the wall 6 of graphitizing furnace of carbon slab casing
450-550mm gaps are left, inner space loads insulation carbon black, forms carbon black heat-insulation layer 8, two ends graphite block wall 1 and burner
Left between wall 4, stove tail wall 14 and graphite block wall 22 is assembled in 200mm gaps, gap, graphite block wall 22 and graphite block wall
Graphite powder is loaded in gap between one 13 and burner wall 4, stove tail wall 14, graphite bisque 1, graphite bisque two is formed
5, assemble and temperature tube 11, conductive electrode are set in assembling process；
2. step 1. after the completion of, dust-proof canvas roof is built on whole graphitizing furnace, canvas roof top and surrounding are closed,
Prevent foreign matter from falling into stove, while conscientiously removing the debris in stove with dust catcher；
3. shove charge, shove charge staff garments are cleaned out with dust catcher, and shove charge instrument must not be infected with other debris, shove charge instrument
Using stainless steel or plastic tool, negative material loading furnace process will avoid airborne dust, it is to avoid loss, and carbon block is assembled in shove charge
Heat generating core, be filled to poor 1-2mm it is discontented when stop, above fit on carbon slab layer, prevent foreign matter from falling into stove；
4. upper carbon slab layer paving 200mm raw petroleum cokes drainage layer above, drainage layer upper berth 400mm quartz sands: coke powder=4: 6
Heat-insulation layer, then removes paulin inspection, and conductive electrode connection power supply prepares power transmission；
5. at 600 DEG C, 1200 DEG C during power transmission, 2100 DEG C of these three temperature spots heatings are slow, real-time with infrared radiation thermometer
Monitoring temperature, when measuring all temperature tube temperature and reaching 3000 DEG C, keeps 12 hours 3000 DEG C of temperature, terminates power transmission.
6. after power transmission terminates, cooled down using nature normal temperature cooling means, until can come out of the stove；
7. come out of the stove, remove after top heat-insulation layer, drainage layer, upper carbon slab layer is taken canvas roof when being less than 40 DEG C and come out of the stove, canvas roof
Top and surrounding are closed, and prevent debris from falling into product, staff garments' shoes and hats of coming out of the stove are cleaned out with dust catcher, go out furnaceman
Tool uses stainless steel, prevents magnetisable material from falling into product.
In above-mentioned steps, temperature can be monitored in real time, be conducive to controlling the temperature in stove, it is ensured that the quality of product, shove charge
Process of coming out of the stove strictly is controlled, and is prevented impurities and dust etc. from entering in product, further be ensure that the quality of product, come out of the stove in product
Process, will be dispensed to the product of diverse location, and carry out mark, while to the product sampling analysis of diverse location, will examine
Survey qualified product packaging storage.
Claims (9)
1. a kind of lithium cell cathode material graphitizing furnace, including by fire resisting concrete burner wall (4), fire resisting concrete stove tail wall (14) and
The rectangle body of heater that both sides fire resisting concrete wall (6) is surrounded, is provided with conductive electrode on burner wall (4) and stove tail wall (14)
(3), conductive electrode (3) one end stretches to furnace interior, and one end reaches burner wall (4), stove tail wall (14) and connects confession outside
Power supply, it is characterised in that：Carbon slab casing is provided with galley body, the carbon slab casing includes the graphite block wall one at two ends
(13), the carbon slab wall (9) of both sides, upper carbon slab layer (15), lower carbon slab layer (16), and the carbon block heating being arranged in carbon slab casing
Core (12), the graphite block wall one (13) of both end of which surrounds the main body frame of carbon slab casing, framework bottom with the carbon slab wall (9) of both sides
Face is lower carbon slab layer (16), and top surface is upper carbon slab layer (15), the graphite block wall one (13) at two ends and the burner wall (4) at two ends,
Graphite bisque one (1), graphite block wall two (2), graphite bisque two (5), the carbon slab of both sides are set gradually between stove tail wall (14)
Carbon black heat-insulation layer (8), upper carbon slab layer (15) upper berth drainage layer and insulation are set between wall (9) and the fire resisting concrete wall (6) of both sides
Layer.
2. lithium cell cathode material graphitizing furnace according to claim 1, it is characterised in that the wall of graphitizing furnace both sides
(6) outside is provided with the fire resisting concrete column (7) with wall one, and several fire resisting concrete columns (7) are uniformly distributed in the wall (6) of both sides
Outside.
3. lithium cell cathode material graphitizing furnace according to claim 1, it is characterised in that the carbon slab of carbon slab casing both sides
Carbon black heat-insulation layer (8) thickness between wall (9) and the wall (6) of graphitizing furnace both sides is 450-550mm.
4. lithium cell cathode material graphitizing furnace according to claim 1, it is characterised in that the furnace bottom upper berth of graphitizing furnace
There is the silica aerogel layer for insulation, between furnace bottom and lower carbon slab layer (16).
5. lithium cell cathode material graphitizing furnace according to claim 4, it is characterised in that the silica aerogel layer thickness is
500mm。
6. lithium cell cathode material graphitizing furnace according to claim 1, it is characterised in that the carbon block heat generating core (12)
It is layering and is formed by a plurality of strip heat generating core, is vertically arranged in carbon slab casing, the stone of two ends respectively with carbon slab tank ends
Ink stick wall one (13) connects, and bottom surface connects with lower carbon slab layer (16), and top surface connects with upper carbon slab layer (15).
7. the lithium cell cathode material graphitizing furnace according to any one of claim 1~6, it is characterised in that also including thermometric
Manage (11), the temperature tube (11) is arranged on the side wall (6) of graphitizing furnace, one end passes through wall, also cross carbon slab
The carbon slab wall (9) of casing is stretched into carbon slab casing, and the other end is located at the outside of the side wall (6) of graphitizing furnace.
8. lithium cell cathode material graphitizing furnace according to claim 7, it is characterised in that the temperature tube (11) is stretched into
Length in carbon slab casing is 150mm, the centrally disposed " u "-shaped hole (17) of temperature tube (11).
9. a kind of lithium cell cathode material graphitization technique for lithium cell cathode material graphitizing furnace described in claim 1,
Comprise the following steps：
1. first, the 500mm silica aerogel layers for insulation are spread in graphitizing furnace bottom, carbon slab layer under first being placed on silica aerogel layer
(16) other parts of assembling carbon slab casing, the both sides carbon slab wall (9) of carbon slab casing and the wall of graphitizing furnace, are then assembled
(6) 450-550mm gaps are left between, inner space loads insulation carbon black, forms carbon black heat-insulation layer (8), two ends graphite block wall
Left between one (13) and burner wall (4), stove tail wall (14) and graphite block wall two (2), stone are assembled in 200mm gaps, gap
Graphite is loaded in gap between ink stick wall two (2) and graphite block wall one (13) and burner wall (4), stove tail wall (14)
Powder, forms graphite bisque one (1), graphite bisque two (5), assembles and temperature tube (11), conductive electrode are set in assembling process
(3)；
2. step 1. after the completion of, dust-proof canvas roof is built on whole graphitizing furnace, canvas roof top and surrounding are closed, prevented
Foreign matter is fallen into stove, while conscientiously removing the debris in stove with dust catcher；
3. shove charge, shove charge staff garments are cleaned out with dust catcher, and shove charge instrument must not be infected with other debris, and shove charge instrument is used
Stainless steel or plastic tool, negative material loading furnace process will avoid airborne dust, it is to avoid loss, and carbon block heating is assembled in shove charge
Core (12), be filled to poor 1-2mm it is full when stop, above fit on carbon slab layer (15), prevent foreign matter from falling into stove；
4. upper carbon slab layer (15) paving 200mm raw petroleum cokes drainage layer above, drainage layer upper berth 400mm quartz sands: coke powder=4: 6
Heat-insulation layer, then removes paulin inspection, and conductive electrode (3) connection power supply prepares power transmission；
5. at 600 DEG C, 1200 DEG C during power transmission, 2100 DEG C of these three temperature spots heatings are slow, monitored in real time with infrared radiation thermometer
Temperature, when measuring all temperature tubes (11) temperature and reaching 3000 DEG C, keeps 12 hours 3000 DEG C of temperature, terminates power transmission；
6. after power transmission terminates, cooled down using nature normal temperature cooling means, until can come out of the stove；
7. come out of the stove, remove after top heat-insulation layer, drainage layer, upper carbon slab layer (15) is taken canvas roof when being less than 40 DEG C and come out of the stove, canvas roof
Top and surrounding are closed, and prevent debris from falling into product, staff garments' shoes and hats of coming out of the stove are cleaned out with dust catcher, go out furnaceman
Tool uses stainless steel, prevents magnetisable material from falling into product.
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| CN105502362B (en) * | 2015-12-28 | 2018-02-13 | 河南九龙新能源材料有限公司 | A kind of acheson furnace and its charging technique for producing graphite negative electrodes material |
| CN105858664B (en) * | 2016-06-17 | 2017-11-28 | 大同新成新材料股份有限公司 | The method and acheson furnace of carborundum quality can be improved |
| CN106521711B (en) * | 2016-11-08 | 2018-10-19 | 湖南东映碳材料科技有限公司 | A kind of continuous superhigh temperature graphitizing furnace of horizontal direct current resistive |
| CN108439392A (en) * | 2018-03-06 | 2018-08-24 | 大同新成新材料股份有限公司 | A kind of low energy consumption lithium battery graphite cathode material purifying plant and its manufacture craft |
| CN113251802A (en) * | 2021-04-29 | 2021-08-13 | 湖南九华碳素高科有限公司 | Graphitizing equipment for processing silicon-carbon negative electrode material of lithium ion battery |
| CN116119656A (en) * | 2023-03-01 | 2023-05-16 | 深圳市翔丰华科技股份有限公司 | Low-energy-consumption graphitizing furnace and graphitizing process for graphite cathode material of lithium ion battery |
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| US5631919A (en) * | 1995-11-21 | 1997-05-20 | Ucar Carbon Technology Corporation | Apparatus for lengthwise graphitization (LWG) of carbon electrode bodies |
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| CN1834205A (en) * | 2006-04-12 | 2006-09-20 | 元氏县槐阳碳素有限公司 | Process for producing graphitizing petrol coke by Acheson graphitizing furnace |
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