CN109453730B - Battery material synthesis device and method - Google Patents
Battery material synthesis device and method Download PDFInfo
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- CN109453730B CN109453730B CN201711454440.4A CN201711454440A CN109453730B CN 109453730 B CN109453730 B CN 109453730B CN 201711454440 A CN201711454440 A CN 201711454440A CN 109453730 B CN109453730 B CN 109453730B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 title claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 title claims description 19
- 238000003786 synthesis reaction Methods 0.000 title claims description 19
- 239000007788 liquid Substances 0.000 claims abstract description 96
- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 238000004062 sedimentation Methods 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 8
- 238000005086 pumping Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 238000004537 pulping Methods 0.000 claims description 4
- 238000010009 beating Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001308 synthesis method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005856 abnormality Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- 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)
- Organic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a novel device and a method for synthesizing a battery material. The method is characterized in that the sedimentation tank is separated from the reaction kettle, so that the influence of stirring of the reaction kettle on the sedimentation effect of solid particles in slurry in the sedimentation tank is reduced, the sedimentation effect of the solid particles is optimized, and the content of the solid particles in the reaction can be effectively improved. Meanwhile, the viewing mirror is arranged on the clear liquid discharge pipeline, so that the liquid discharge condition can be observed in real time, the occurrence of abnormality can be found out in time, and the reliability is high. In addition, the settling tank is separated from the reaction kettle, and has the advantages of convenient processing, simple process, low cost and the like.
Description
Technical Field
The invention belongs to the field of chemical equipment, and particularly relates to a novel battery material synthesis device and method.
Background
At present, a green secondary battery represented by a lithium ion battery and a nickel hydrogen battery is taken as a high-efficiency clean new energy source capable of being recycled, and becomes an important technical approach for relieving energy, resource and environmental problems. The application fields include various portable electric tools, electronic instruments, mobile phones, notebook computers, camcorders, weaponry, electric automobiles, and the like. The secondary battery mainly comprises a positive electrode material, a negative electrode material, an electrolyte and the like, wherein the positive electrode material is often the most costly part of the battery. In the preparation process of the battery material, synthesis is core, and the content of the reactive solid particles can influence the indexes such as density, sphericity and the like of the battery material and the production efficiency, so that the method has important significance for the production of the battery material.
The method for improving the content of the solid particles in the battery material reaction is reported at present, wherein a hole is formed beside the bottom of a reaction kettle to be connected with a sedimentation tank, or the sedimentation tank and the reaction kettle are embedded together, slurry in the reaction kettle enters the sedimentation tank through the hole, the solid particles in the slurry are returned to the reaction kettle after being settled in the sedimentation tank, and liquid is discharged out of the reaction kettle, so that the purpose of improving the content of the solid particles in the reaction can be achieved. But such device settling cask links to each other with reation kettle is direct, and reation kettle's stirring can make the liquid level height of settling cask fluctuate, leads to in the thick liquids solid particle can not effectively subside in the settling cask, and some solids can discharge together with the mother liquor when extracting mother liquor, and the solid particle content increases in the reation kettle limitedly, and can influence the yield of product.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a synthesis device for improving the content of solid particles in a battery material reaction, which can effectively reduce the influence of stirring of a reaction kettle on the sedimentation effect, optimize the sedimentation effect of solid particles and effectively control the content of solid particles in the reaction by pumping liquid.
Another object of the present invention is to provide a synthesis method based on the above synthesis device.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a battery material synthesizing device comprises a reaction kettle (1) and a sedimentation tank (2), wherein,
The top of the reaction kettle (1) is provided with a stirring motor (101) which is connected with a stirring paddle (107) through a stirring shaft (106) in the kettle; the top of the reaction kettle (1) is provided with a kettle cover (102), the upper part of the reaction kettle is provided with an overflow port (104), and the kettle cover (102) is provided with a reflux port (216); the side wall of the reaction kettle (1) is provided with a liquid suction port (109), and the bottom is provided with a liquid discharge port (108);
An exhaust port (201) and a clear liquid outlet (202) are arranged at the upper part of the settling tank (2), and the exhaust port (201) enters the reaction kettle (1) through an exhaust pipeline (213); the clear liquid outlet (202) is connected with a clear liquid discharge pipeline (203); the lower part of the sedimentation tank (2) is provided with an exchange port (209), and the exchange port (209) is communicated with the liquid suction port (109) through a liquid suction pipeline (210) on one hand and is communicated with a reflux port (216) through a liquid discharge pipeline (214) on the other hand; a beating pump (211) is arranged on the liquid suction pipeline (210); the liquid discharge pipe (214) is provided with a control valve (215) for adjusting the flow rate of the slurry entering the settling tank and the flow rate of the slurry returning to the synthesis kettle.
Further, a jacket (103) is arranged on the outer side of the kettle body (1), and the temperature of the reaction kettle is controlled through a heat conducting medium in the jacket.
Further, the outer wall of the reaction kettle (1) is provided with a heat preservation layer (105), so that the heat dissipation capacity in the reaction process is reduced, and the control of the reaction temperature is facilitated.
Further, a baffle plate (205) is arranged in the sedimentation tank (2), and an included angle between the baffle plate (205) and the side wall of the sedimentation tank (2) is 40-50 degrees, so that materials which are deposited on the baffle plate can smoothly slide down and return to the reaction kettle (1).
Further, a layer of microporous filter screen (212) is arranged at the upper part of the sedimentation tank (2) to further intercept the materials which are not settled.
Further, a metering pump (207) is arranged on the clear liquid discharging pipeline (203) and is used for discharging clear liquid.
Further, the clear liquid discharge pipe (203) is provided with a flow meter (208) for controlling the amount of discharged liquid and thus controlling the solid particle content of the reaction.
Further, a sight glass (204) is arranged on the clear liquid discharge pipeline (203) and is used for observing the condition of discharged liquid in real time.
Further, an insulating layer (206) is arranged outside the sedimentation tank, so that the influence of heat dissipation on the temperature of the reaction kettle in the sedimentation process is reduced.
The other purpose of the invention is realized by the following technical scheme:
a method for synthesizing battery materials comprises the following steps:
A. The pulping pump (211) pumps the slurry in the reaction kettle (1) to the liquid pumping pipeline (210) through the liquid pumping port (109), one part of the slurry enters the sedimentation tank (2) through the exchange port (209), and the other part of the slurry returns to the synthesis kettle (1) along with the liquid discharging pipeline (214) through the liquid backflow port (216);
B. Under the blocking action of the baffle plate (205) and the filter screen (212), solid particles entering the slurry in the settling tank (2) are settled and then are sunk through the exchange port (209), and are returned to the reaction kettle (1) along with the slurry returned to the reaction kettle (1);
C. the flow rate of the slurry entering the settling tank and the flow rate of the slurry returning to the synthesis kettle are regulated through a control valve (215) of a liquid discharge pipeline (214), so that the liquid level in the settling tank reaches a certain height, and the liquid discharged from a liquid discharge port is clarified. In the process, a metering pump (207) is adopted to pump out clear liquid through a clear liquid outlet (202), then the clear liquid is discharged through a clear liquid discharge pipeline (203), and the content of the reaction solid particles is controlled to be stable by precisely controlling the amount of the pumped clear liquid;
D. The reaction kettle (1) continuously extracts liquid through the sedimentation tank (2) while feeding, and meanwhile, the thickened slurry in the reaction kettle (1) overflows to the next working procedure through the overflow port (104) to carry out continuous production.
Compared with the prior art, the invention has the following advantages:
(1) The invention separates the settling tank from the synthesis kettle, reduces the influence of the stirring of the synthesis kettle on the settling effect of solid particles in slurry in the settling tank, and can more effectively improve the content of the solid particles in the synthesis kettle
(2) The viewing mirror is arranged on the clear liquid discharge pipeline, so that the situation of liquid discharge can be observed in real time, the occurrence of abnormality can be found out in time, and the reliability is high.
(3) The settling tank is separated from the synthesis kettle, and has the advantages of convenient processing, simple process, low cost and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a battery material synthesizing apparatus.
The reference numerals in fig. 1 denote:
1 reaction kettle
101 Stirring motor, 102 kettle cover, 103 jacket, 104 overflow port, 105 heat insulation layer, 106 stirring shaft, 107 stirring paddle, 108 liquid outlet and 109 liquid pumping port
2 Settling cask
201 Exhaust port, 202 clear liquid outlet port, 203 clear liquid outlet pipeline, 204 sight glass, 205 baffle plate, 206 heat preservation, 207 metering pump, 208 flowmeter, 209 exchange port, 210 liquid extraction pipeline, 211 beating pump, 212 microporous filter screen, 213 exhaust pipeline, 214 liquid discharge pipeline, 215 control valve, 216 reflux liquid port.
Detailed Description
In order that the inventive aspects of the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1, the lithium ion battery anode material precursor synthesis device comprises a reaction kettle (1) and a sedimentation tank (2).
The reaction kettle (1) comprises a stirring motor (101), a kettle cover (102), a jacket (103), an overflow port (104), an insulating layer (105), a stirring shaft (106), stirring paddles (107), a liquid outlet (108) and a liquid pumping port (109).
The sedimentation tank (2) comprises an exhaust port (201), a clear liquid outlet port (202), a clear liquid outlet pipeline (203), a sight glass (204), a baffle plate (205), an insulation layer (206), a metering pump (207), a flowmeter (208), an exchange port (209), a liquid suction pipeline (210), a pulping pump (211), a microporous filter screen (212), an exhaust pipeline (213), a liquid discharge pipeline (214), a control valve (215) and a reflux liquid port (216).
In actual production, the pulping pump (211) pumps the slurry in the reaction kettle (1) to the liquid pumping pipeline (210) through the liquid pumping port (109), one part of the slurry enters the sedimentation tank (2) through the exchange port (209), and the other part of the slurry returns to the synthesis kettle (1) along with the liquid discharging pipeline (214) through the reflux liquid port (216). Under the blocking action of the baffle plate (205) and the filter screen (212), solid particles in slurry entering the settling tank (2) are settled and then are sunk through the exchange port (209), and are returned to the reaction kettle (1) along with the slurry returned to the reaction kettle (1). The flow rate of the slurry entering the settling tank and the flow rate of the slurry returning to the synthesis kettle are regulated through a control valve (215) of a liquid discharge pipeline (214), so that the liquid level in the settling tank reaches a certain height, and the liquid discharged from a liquid discharge port is clarified. In the process, a metering pump (207) is adopted to pump out the clear liquid through a clear liquid outlet (202), and then the clear liquid is discharged through a clear liquid discharge pipeline (203), and the content of the reaction solid particles is controlled to be stable by precisely controlling the amount of the pumped clear liquid. In the use process, the reaction kettle (1) continuously extracts liquid through the sedimentation tank (2) while feeding, and meanwhile, the thickened slurry in the reaction kettle (1) overflows to the next working procedure through the overflow port (104) for continuous production.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The battery material synthesis method comprises a reaction kettle (1) and a sedimentation tank (2), wherein a stirring motor (101) is arranged at the top of the reaction kettle (1), and is connected with a stirring paddle (107) through a stirring shaft (106) in the kettle; the top of the reaction kettle (1) is provided with a kettle cover (102), and the upper part of the reaction kettle is provided with an overflow port (104), and is characterized in that the kettle cover (102) is provided with a reflux port (216); the side wall of the reaction kettle (1) is provided with a liquid suction port (109), and the bottom is provided with a liquid discharge port (108); an exhaust port (201) and a clear liquid outlet (202) are arranged at the upper part of the settling tank (2), and the exhaust port (201) enters the reaction kettle (1) through an exhaust pipeline (213); the clear liquid outlet (202) is connected with a clear liquid discharge pipeline (203); the lower part of the sedimentation tank (2) is provided with an exchange port (209), and the exchange port (209) is communicated with the liquid suction port (109) through a liquid suction pipeline (210) on one hand and is communicated with a reflux port (216) through a liquid discharge pipeline (214) on the other hand; a beating pump (211) is arranged on the liquid suction pipeline (210); a control valve (215) is arranged on the liquid discharge pipeline (214) and is used for adjusting the flow rate of the slurry entering the settling tank and the flow rate of the slurry returning to the synthesis kettle;
Wherein, a baffle plate (205) is arranged in the sedimentation tank (2), and the included angle between the baffle plate (205) and the side wall of the sedimentation tank (2) is 40-50 degrees;
A metering pump (207) is arranged on the clear liquid discharge pipeline (203) and is used for discharging clear liquid;
the clear liquid discharge pipeline (203) is provided with a flowmeter (208) for controlling the discharge liquid amount;
a layer of microporous filter screen (212) is arranged at the upper part of the sedimentation tank (2) to further intercept the non-settled materials;
the synthesis method comprises the following steps:
A. The pulping pump (211) pumps the slurry in the reaction kettle (1) to the liquid pumping pipeline (210) through the liquid pumping port (109), one part of the slurry enters the sedimentation tank (2) through the exchange port (209), and the other part of the slurry returns to the synthesis kettle (1) along with the liquid discharging pipeline (214) through the liquid backflow port (216);
B. Under the blocking action of the baffle plate (205) and the filter screen (212), solid particles entering the slurry in the settling tank (2) are settled and then are sunk through the exchange port (209), and are returned to the reaction kettle (1) along with the slurry returned to the reaction kettle (1);
C. The flow rate of the slurry entering the settling tank and the flow rate of the slurry returning to the synthesis kettle are regulated through a control valve (215) of a liquid discharge pipeline (214), so that the liquid level in the settling tank reaches a certain height, and the liquid discharged from a liquid discharge port is clear; in the process, a metering pump (207) is adopted to pump out clear liquid through a clear liquid outlet (202), then the clear liquid is discharged through a clear liquid discharge pipeline (203), and the content of the reaction solid particles is controlled to be stable by precisely controlling the amount of the pumped clear liquid;
D. The reaction kettle (1) continuously extracts liquid through the sedimentation tank (2) while feeding, and meanwhile, the thickened slurry in the reaction kettle (1) overflows to the next working procedure through the overflow port (104) to carry out continuous production.
2. The method for synthesizing the battery material according to claim 1, wherein a jacket (103) is arranged outside the reaction kettle (1), and the temperature of the reaction kettle is controlled by a heat conducting medium in the jacket.
3. The method for synthesizing the battery material according to claim 1, wherein the outer wall of the reaction kettle (1) is provided with a heat preservation layer (105).
4. The battery material synthesizing method according to claim 1, characterized in that the clear liquid discharging pipe (203) is provided with a sight glass (204) for observing the condition of the discharged liquid in real time.
5. The method for synthesizing a battery material according to claim 1, characterized in that an insulating layer (206) is provided outside the settling tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711454440.4A CN109453730B (en) | 2017-12-28 | 2017-12-28 | Battery material synthesis device and method |
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| CN109453730B true CN109453730B (en) | 2024-05-28 |
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| KR102282282B1 (en) * | 2018-11-05 | 2021-07-27 | 주식회사 엘지화학 | Apparatus and method for manufacturing positive electrode active material precursor |
| CN113856591B (en) * | 2021-10-12 | 2022-12-16 | 浙江帕瓦新能源股份有限公司 | High-efficient concentration reaction kettle |
| CN114931802A (en) * | 2022-05-31 | 2022-08-23 | 成都思达能环保设备有限公司 | Coprecipitation reaction system and outlet system thereof |
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| CN109453730A (en) | 2019-03-12 |
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