CN108253800B - Exhaust and heat transfer device for roasting lithium ion battery electrode material - Google Patents
Exhaust and heat transfer device for roasting lithium ion battery electrode material Download PDFInfo
- Publication number
- CN108253800B CN108253800B CN201810186126.0A CN201810186126A CN108253800B CN 108253800 B CN108253800 B CN 108253800B CN 201810186126 A CN201810186126 A CN 201810186126A CN 108253800 B CN108253800 B CN 108253800B
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- porous exhaust
- exhaust heat
- porous
- pipe
- 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.)
- Active
Links
- 239000007772 electrode material Substances 0.000 title claims abstract description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 12
- 230000002708 enhancing effect Effects 0.000 claims abstract description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000010431 corundum Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 30
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 230000018044 dehydration Effects 0.000 abstract description 3
- 238000006297 dehydration reaction Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 6
- 238000005245 sintering Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000010405 anode material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
- F27D5/0006—Composite supporting structures
- F27D5/0012—Modules of the sagger or setter type; Supports built up from them
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
- F27D2005/0081—Details
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses an exhaust and heat transfer multifunctional device for roasting electrode materials of lithium ion batteries, which is matched with a sagger for roasting the electrode materials. The multifunctional device comprises a plurality of porous exhaust heat transfer pipes and a fixing frame for fixing the porous exhaust heat transfer pipes; the porous exhaust heat transfer pipe is a cylindrical exhaust pipe with a closed bottom; the porous exhaust heat transfer pipes are vertically placed through the fixing frame, and the pipe orifices of all the porous exhaust heat transfer pipes are positioned on the same horizontal plane. The device has the two functions of timely discharging gas released by dehydration or decomposition of materials and enhancing heat transfer in the heating process of electrode materials.
Description
Technical Field
The invention relates to an exhaust and heat transfer multifunctional device for roasting lithium ion battery electrode materials, and belongs to the field of lithium battery anode materials.
Background
In the preparation process of lithium ion battery anode materials such as lithium cobaltate, lithium manganate, lithium iron phosphate, nickel manganese high-voltage materials, ternary materials, lithium-rich materials and the like, the precursors of the reaction raw materials or electrode materials are ground and mixed into powder, the powder is filled into special saggers, and then a plurality of saggers filled with the powder materials are placed in a roller-type sintering furnace in sequence and are baked under a certain atmosphere. Powder materials with certain height (thickness) are filled in each sagger, and when the saggers are roasted in a sintering furnace, the heat transfer is influenced due to the fact that the powder materials are stacked in a large thickness, on one hand, large energy consumption is needed, on the other hand, the material sintering temperature of different parts is easily caused to be uneven, and therefore uniformity of product quality is difficult to ensure. In addition, the gas released from the interior of the material is easy to accumulate, so that the spraying phenomenon often occurs, the product is lost or polluted, and the normal operation of the roller hearth furnace device can be influenced in severe cases.
Disclosure of Invention
In order to avoid the technical problems of the prior art, the invention aims to provide an exhaust and heat transfer multifunctional device for roasting lithium ion battery electrode materials. The device is matched with a sagger for roasting electrode materials, and has two functions of timely discharging gas released by dehydration or decomposition of materials and enhancing heat transfer in the heating process of the electrode materials. On one hand, the electrode material of the lithium ion battery can be prevented from being sprayed outwards when being sintered in the sagger, so that material loss is avoided or the normal operation of a roller hearth furnace device is prevented from being influenced; on the other hand, the hot air flow for roasting can flow into the material in the sagger uniformly and rapidly for heating, and the method has the effects of obviously saving energy and guaranteeing the roasting uniformity of the material.
The invention relates to an exhaust and heat transfer multifunctional device for roasting lithium ion battery electrode materials, which comprises a plurality of porous exhaust heat transfer pipes 1 and a fixed frame 2 for fixing the porous exhaust heat transfer pipes 1, wherein the porous exhaust heat transfer pipes 1 and the fixed frame 2 are of an integral structure or a combined structure.
The porous exhaust heat transfer pipe 1 is a cylindrical exhaust pipe with a closed bottom. Further, the bottom of the porous exhaust gas heat transfer pipe 1 is provided in an inverted conical shape. Compared with a flat bottom, the inverted conical bottom of the porous exhaust heat transfer pipe is smaller in resistance when being pressed into the material, and the exhaust pipe is easy to be pressed into the bottom of the sagger material.
The porous exhaust gas heat transfer pipes 1 are vertically placed by the fixing frame 2, and the pipe orifices of all the porous exhaust gas heat transfer pipes 1 are in the same horizontal plane.
The fixing positions of the fixing frame 2 and the porous exhaust heat transfer pipe 1 enable the height of the porous exhaust heat transfer pipe 1 at the lower part of the fixing frame 2 to be more than or equal to the depth of a sagger matched with the porous exhaust heat transfer pipe, so that the fixing frame is positioned above materials.
The cylinder wall of the porous exhaust heat transfer pipe 1 positioned at the lower part of the fixed frame 2 is uniformly provided with vent holes for exhausting gas and enhancing heat transfer. The inverted conical bottom is of a closed hollow structure, and the conical part does not open air holes.
The plurality of porous exhaust heat transfer pipes 1 are arranged in a transverse direction or a longitudinal direction or a mixed rule by the fixation of the fixing frame 2.
A handle 3 is provided on the fixed frame 2 for taking and placing.
The exhaust and heat transfer multifunctional device (comprising the porous exhaust heat transfer pipe 1, the fixed frame 2 and the handle 3) is made of the same materials as the sagger, and is generally made of refractory materials such as ceramics, corundum or metal materials, and the geometric dimension of the device is determined according to the size of the sagger. The material of the fixing frame 2 may be the same as or different from that of the porous exhaust heat transfer pipe 1, and may be a refractory material.
The diameter of the cylinder of the porous exhaust gas heat transfer pipe 1 is 3-100mm, the wall thickness is 1-50mm, and the height is generally required to be larger than the depth of the sagger. The vent holes uniformly distributed on the wall of the cylinder tube can be round holes, square holes or holes with other shapes, and the hole size can be 50-10 mm according to the size of powder particles.
The device is matched with a sagger for roasting electrode materials, and has two functions of timely discharging gas released by dehydration or decomposition of materials and enhancing heat transfer in the heating process of the electrode materials. On one hand, the material spraying phenomenon caused by the accumulation of gas released by the interior of the electrode material of the lithium ion battery during sintering in the sagger can be prevented, and the material loss or the influence on the normal operation of the roller hearth furnace device can be avoided; on the other hand, the hot air flow for roasting can flow into the material for heating uniformly and rapidly, so that the energy-saving effect is obvious (10-20% of energy saving) and the material roasting uniformity is ensured.
Compared with the prior art, the invention has the beneficial effects that:
the device has simple structure and convenient use. When in use, the exhaust pipe is placed on the sagger filled with the material to be roasted, and the bottom of the exhaust pipe is pushed to be in contact with the bottom of the sagger. The device can enhance the exhaust, prevent the materials from being sprayed outwards due to unsmooth exhaust when the materials are sintered in the sagger, and avoid material loss or influence on the normal operation of the roller hearth furnace device; in addition, the heat transfer can be enhanced, and the effects of obviously saving energy and guaranteeing even roasting of materials are achieved.
Drawings
Fig. 1 is a schematic diagram of a multifunctional device for exhausting and transferring heat for roasting lithium ion battery electrode materials according to the present invention.
FIG. 2 is a schematic illustration of the structure of a single porous exhaust heat transfer tube.
Wherein, 1 porous exhaust heat transfer pipe, 2 fixed frame, 3 handles.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and specific embodiments. The following examples are presented to illustrate the present invention but are not intended to limit the scope of the present invention.
The invention relates to an exhaust and heat transfer multifunctional device for roasting lithium ion battery electrode materials, which is shown in fig. 1 and 2 and comprises a plurality of porous exhaust heat transfer pipes and a fixing frame for fixing the porous exhaust heat transfer pipes, wherein the porous exhaust heat transfer pipes and the fixing frame are processed into an integral structure. The length and width dimensions of the fixed frame are 600mm by 250mm; a pair of semicircular handles with the diameter of 50mm are arranged between the two side frames of the fixed frame.
The porous exhaust heat transfer pipe is a cylindrical exhaust pipe with a closed bottom, and the bottom of the porous exhaust heat transfer pipe is arranged into an inverted conical shape. Compared with a flat bottom, the inverted conical bottom of the porous exhaust heat transfer pipe is smaller in resistance when being pressed into the material, and the exhaust pipe is easy to be pressed into the bottom of the sagger material.
The porous exhaust heat transfer pipes are vertically placed through the fixing frame, and the pipe orifices of all the porous exhaust heat transfer pipes are positioned on the same horizontal plane. The height of the porous exhaust heat transfer pipe is 250mm, the bottom cone height is 20mm, wherein the upper part of the fixed frame is exposed for 50mm, and the lower part of the fixed frame is exposed for 200mm. Four rows of 20 porous exhaust heat transfer tubes are uniformly distributed in the fixed frame. This example is applicable to sagger sizes 600mm by 250mm by 200mm.
Regular and dense vent holes are arranged on the wall of the cylinder tube in the height range of 20-200 mm of the porous exhaust heat transfer tube, the aperture is 2mm, the hole spacing is 5mm, and the porous exhaust heat transfer tube is used for exhausting gas and enhancing heat transfer. The inverted conical bottom is of a closed hollow structure, and the conical part does not open air holes.
In this embodiment, the porous exhaust heat transfer pipe, the fixing frame and the handle are all made of corundum.
The above description is merely of a preferred embodiment of the present invention, and it should be noted that the present invention is not limited to the structure of the above examples, and it should be understood that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (7)
1. An exhaust and heat transfer device for roasting lithium ion battery electrode materials, which is characterized in that: the device comprises a plurality of porous exhaust gas heat transfer pipes (1) and a fixing frame (2) for fixing the porous exhaust gas heat transfer pipes (1); the porous exhaust heat transfer pipe (1) is a cylindrical exhaust pipe with a closed bottom; the porous exhaust heat transfer pipes (1) are vertically placed through the fixed frame (2), and the pipe orifices of all the porous exhaust heat transfer pipes (1) are positioned on the same horizontal plane;
the fixing positions of the fixing frame (2) and the porous exhaust heat transfer pipe (1) enable the height of the porous exhaust heat transfer pipe (1) at the lower part of the fixing frame (2) to be more than or equal to the depth of a sagger matched with the fixing frame;
the cylinder wall of the porous exhaust heat transfer pipe (1) positioned at the lower part of the fixed frame (2) is uniformly provided with vent holes for exhausting gas and enhancing heat transfer;
the bottom of the porous exhaust heat transfer pipe (1) is arranged in an inverted conical shape.
2. The apparatus according to claim 1, wherein:
the size of the ventilation hole is 50 μm-10mm.
3. The apparatus according to claim 1, wherein:
the porous exhaust heat transfer pipes (1) are fixed by the fixing frame (2) and are arranged transversely or longitudinally or in a mixing rule.
4. The apparatus according to claim 1, wherein:
a handle (3) is arranged on the fixed frame (2) so as to be convenient for taking and placing.
5. The apparatus according to claim 1, wherein:
the exhaust and heat transfer device is made of ceramic, corundum or metal materials.
6. The apparatus according to claim 1, wherein:
the diameter of the cylinder of the porous exhaust heat transfer tube (1) is 3-100mm, and the wall thickness is 1-50mm.
7. The apparatus according to claim 1, wherein:
the porous exhaust heat transfer pipe (1) and the fixed frame (2) are of an integral structure or a combined structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186126.0A CN108253800B (en) | 2018-03-07 | 2018-03-07 | Exhaust and heat transfer device for roasting lithium ion battery electrode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186126.0A CN108253800B (en) | 2018-03-07 | 2018-03-07 | Exhaust and heat transfer device for roasting lithium ion battery electrode material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108253800A CN108253800A (en) | 2018-07-06 |
| CN108253800B true CN108253800B (en) | 2024-02-13 |
Family
ID=62745710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810186126.0A Active CN108253800B (en) | 2018-03-07 | 2018-03-07 | Exhaust and heat transfer device for roasting lithium ion battery electrode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108253800B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345771A (en) * | 2018-12-22 | 2019-10-18 | 中国平煤神马集团开封炭素有限公司 | A kind of sintering saggar, sintering equipment and the sintering method of positive electrode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682162A (en) * | 1992-09-02 | 1994-03-22 | Murata Mfg Co Ltd | Continuous baking furnace |
| CN201990605U (en) * | 2010-12-06 | 2011-09-28 | 王一华 | Saggar suitable for dewaxing and degumming |
| CN204123390U (en) * | 2014-07-03 | 2015-01-28 | 宁波金和锂电材料有限公司 | The chalker of anode material of lithium battery saggar |
| CN105352327A (en) * | 2014-08-18 | 2016-02-24 | 天津华夏泓源实业有限公司 | Partitioning device for saggar loading of lithium battery positive electrode material |
| CN205060958U (en) * | 2015-09-29 | 2016-03-02 | 山东东源新材料科技有限公司 | No vanadium tombarthite base titanium and tungsten powder air conveying inhales material mouth |
| CN105783507A (en) * | 2016-03-28 | 2016-07-20 | 格林美（无锡）能源材料有限公司 | Double-layer roller kiln for producing lithium-ion anode material and production technology thereof |
| CN207922876U (en) * | 2018-03-07 | 2018-09-28 | 合肥工业大学智能制造技术研究院 | A kind of exhaust and heat transfer multi-function device for roasting lithium ion battery electrode material |
-
2018
- 2018-03-07 CN CN201810186126.0A patent/CN108253800B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682162A (en) * | 1992-09-02 | 1994-03-22 | Murata Mfg Co Ltd | Continuous baking furnace |
| CN201990605U (en) * | 2010-12-06 | 2011-09-28 | 王一华 | Saggar suitable for dewaxing and degumming |
| CN204123390U (en) * | 2014-07-03 | 2015-01-28 | 宁波金和锂电材料有限公司 | The chalker of anode material of lithium battery saggar |
| CN105352327A (en) * | 2014-08-18 | 2016-02-24 | 天津华夏泓源实业有限公司 | Partitioning device for saggar loading of lithium battery positive electrode material |
| CN205060958U (en) * | 2015-09-29 | 2016-03-02 | 山东东源新材料科技有限公司 | No vanadium tombarthite base titanium and tungsten powder air conveying inhales material mouth |
| CN105783507A (en) * | 2016-03-28 | 2016-07-20 | 格林美（无锡）能源材料有限公司 | Double-layer roller kiln for producing lithium-ion anode material and production technology thereof |
| CN207922876U (en) * | 2018-03-07 | 2018-09-28 | 合肥工业大学智能制造技术研究院 | A kind of exhaust and heat transfer multi-function device for roasting lithium ion battery electrode material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108253800A (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170167791A1 (en) | Powder sintering system | |
| CN108253800B (en) | Exhaust and heat transfer device for roasting lithium ion battery electrode material | |
| CN202274755U (en) | A calcined coke cooling apparatus | |
| CN207922876U (en) | A kind of exhaust and heat transfer multi-function device for roasting lithium ion battery electrode material | |
| CN204700307U (en) | A kind of continuous fritting furnace of permanent-magnet rare-earth NdFeB alloy | |
| CN104556024B (en) | Vertical broken artificial graphite treatment facility and technique | |
| CN201715859U (en) | Continuous microwave fluidized-bed roaster | |
| CN204490511U (en) | The horizontal broken artificial graphite treatment facility of novel vertical electrode | |
| JP2000203947A (en) | Firing apparatus for lithium-metal multicomponent oxide and firing method of the same | |
| CN215893263U (en) | Silicon carbide acid-resistant pickaxe-resistant sagger applied to burning lithium battery anode material | |
| CN101907393A (en) | Left and right hot air circulating mesh-belt type roasting furnace adopting fuel for heating | |
| CN210512662U (en) | Sagger for sintering lithium battery anode material | |
| CN210602819U (en) | Novel sagger | |
| CN208700580U (en) | Heat graphitizing furnace in continuous production interval | |
| CN202329206U (en) | High-temperature tubular furnace with cooling device | |
| CN203928694U (en) | Horizontal rotary furnace | |
| CN204490512U (en) | Novel vertical electrode is perpendicular puts broken artificial graphite treatment facility | |
| US20170170457A1 (en) | Powder sintering system | |
| CN114353536B (en) | Roasting sagger and electrode roasting method | |
| CN204490513U (en) | Vertical broken artificial graphite treatment facility | |
| CN205718451U (en) | A kind of pipe type heating device | |
| CN108800953B (en) | Material boat and heating pipe cooperation structure of tubular electric kiln | |
| CN220959632U (en) | Sagger device for improving sintering uniformity of zirconia filter cake | |
| CN215327891U (en) | Continuous high-temperature carbonization furnace | |
| CN218764492U (en) | High-purity atmosphere sintering furnace |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |