CN213590341U - Lithium battery electrolyte preparation device - Google Patents
Lithium battery electrolyte preparation device Download PDFInfo
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- CN213590341U CN213590341U CN202021843802.6U CN202021843802U CN213590341U CN 213590341 U CN213590341 U CN 213590341U CN 202021843802 U CN202021843802 U CN 202021843802U CN 213590341 U CN213590341 U CN 213590341U
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- lithium battery
- battery electrolyte
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Abstract
The utility model discloses a lithium battery electrolyte preparation device, which comprises a dissolution barrel and a preparation barrel communicated with the dissolution barrel through a pipeline, wherein one side of the dissolution barrel is provided with a feed inlet, and the feed inlet is provided with a feed device; a weighing sensor is arranged at the joint of the feeding hole and the feeding device; a cooling device is also arranged in the dissolving barrel; the feeding device comprises a box body and a driver, wherein an upper opening and a lower opening are respectively formed in the upper surface and the lower surface of the box body; the lower opening is communicated with the feed inlet; a connecting rod is arranged on one side of the free end of the hinge; the driver is positioned at one side of the box body, and the output end of the driver horizontally faces the inside of the box body and is fixedly connected with the other end of the connecting rod. The utility model can accurately control the lithium salt feeding amount and realize the sectional feeding of the lithium salt; the temperature of the dissolution barrel can be effectively controlled, the quality of the lithium battery electrolyte is ensured, and the production efficiency of the electrolyte is improved.
Description
Technical Field
The utility model relates to an electrolyte production technical field especially relates to a lithium cell electrolyte preparation device.
Background
The dissolution of lithium salt is the most time-consuming step in the electrolyte blending process, and as a large amount of heat is released when LiPF6 is dissolved, LiPF6 is not heat-resistant, and generates more free acid at high temperature (above 15 ℃), the electrolyte is unqualified, however, the device for lithium battery electrolyte blending in the prior art cannot realize effective control of temperature under the condition of high electrolyte production efficiency in the lithium salt dissolution process.
Meanwhile, in the prior art, the addition of the lithium salt is basically completed manually, the adding amount is difficult to control, the sectional addition cannot be realized, and the labor cost is high; the proportion of components of the lithium battery electrolyte is influenced, and the temperature of the dissolving tank is difficult to control accurately, so that the lithium battery electrolyte is easy to have adverse conditions such as over-standard acidity.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a lithium battery electrolyte preparation device which can accurately control the lithium salt feeding amount and realize the sectional feeding of the lithium salt; the temperature of the dissolution barrel can be effectively controlled, the quality of the lithium battery electrolyte is ensured, and the production efficiency of the electrolyte is improved.
The utility model discloses the technical scheme who adopts as follows:
a lithium battery electrolyte preparation device comprises a dissolution barrel and a preparation barrel communicated with the dissolution barrel through a pipeline, and is characterized in that a feed inlet is formed in one side of the dissolution barrel, and a feed device is arranged at the feed inlet; a weighing sensor is arranged at the joint of the feeding hole and the feeding device; a cooling device is also arranged in the dissolving barrel;
the feeding device comprises a box body and a driver, wherein an upper opening and a lower opening are respectively formed in the upper surface and the lower surface of the box body; the lower opening is communicated with the feed inlet; the lower opening is provided with a hinge which is in clearance fit with the lower opening; one end of the hinge is hinged with one side of the lower opening, and the other end of the hinge is a free end which can move up and down relative to the lower opening; a connecting rod is arranged on one side of the free end of the hinge; the connecting rod is hinged with the hinge; the driver is positioned at one side of the box body, and the output end of the driver horizontally faces the inside of the box body and is fixedly connected with the other end of the connecting rod.
Preferably, the dissolving barrel is of a double-layer structure and comprises an inner barrel wall and an outer barrel wall, and a sealed cavity is arranged between the inner barrel wall and the outer barrel wall; and a stirring device is also arranged in the dissolving bucket.
Preferably, the stirring device comprises a motor, a rotating rod and a dispersion disc; the motor is positioned on the middle surface of the upper end of the dissolving bucket; the rotating rod is positioned inside the dissolving barrel, one end of the rotating rod is connected with the output end of the motor, and the other end of the rotating rod is connected with the dispersion disc.
Preferably, the cooling device comprises an outer cooling coil, an inner cooling coil, a condenser, a first water pump, a second water pump and a water tank; the water outlet and the water inlet of the external cooling coil and the internal cooling coil are respectively connected with the condenser through pipelines, the output end of the condenser is connected with the water tank, and the first water pump and the second water pump are respectively arranged on the pipelines of the water inlets of the external cooling coil and the internal cooling coil.
Preferably, the outer cooling coil is arranged in the sealed cavity; the inner cooling coil is sleeved on the outer side of the rotating rod and is positioned above the dispersing cutter; and the water inlet and the water outlet of the internal cooling coil pipe penetrate through the dissolving barrel respectively and are connected with the second water pump and the water tank.
Preferably, a temperature sensor is arranged in the dissolving barrel and electrically connected with the first water pump and the second water pump.
Preferably, a third pump body is arranged on a pipeline connecting the dissolving barrel and the preparation barrel.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model has simple structure and reasonable design, and can accurately control the lithium salt feeding amount by arranging the weighing sensor between the feeding hole of the dissolving barrel and the feeding device; the feeding device composed of the box body and the driver is arranged at the same time, lithium salt can be put in the box body at one time, then the driver drives the connecting rod to control the opening and closing of the relative lower opening of the hinge, the sectional type putting of the lithium salt is achieved, and the putting of the lithium salt amount is effectively controlled.
2. The dissolving barrel is arranged in a double-layer structure, an outer cooling coil in the cooling device is arranged in a sealed cavity of the dissolving barrel, and an inner cooling coil is fixedly sleeved on the outer side of the rotating rod to form an internal and external double-refrigeration structure; under temperature sensor's effect, can effectively control the temperature of dissolving the bucket, ensure lithium cell electrolyte quality, improve the production efficiency of electrolyte.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: dissolving bucket 1, preparing bucket 2, box 3, driver 4, feed arrangement 5, weighing sensor 6, cooling device 7, agitating unit 8, temperature sensor 9, third pump body 10, feed inlet 11, seal chamber 12, upper shed 31, under shed 32, connecting rod 33, hinge 34, outer cooling coil 71, interior cooling coil 72, water tank 73, condenser 74, second water pump 75, first water pump 76, motor 81, bull stick 82, dispersion impeller 83.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, a lithium battery electrolyte preparation device comprises a dissolution barrel 1 and a preparation barrel 2 communicated with the dissolution barrel 1 through a pipeline, and is characterized in that a feed port 11 is arranged at one side of the dissolution barrel 1, and a feeding device 5 is arranged at the feed port 11; a weighing sensor 6 is arranged at the joint of the feed inlet 11 and the feeding device 5; a cooling device 7 is also arranged in the dissolving barrel 1; the feeding device 5 is used for storing lithium salt and realizing sectional control of lithium salt addition; the weighing sensor 6 is used for monitoring the accurate control of the single lithium salt adding amount of the dissolving barrel 1.
As shown in fig. 1, the feeding device 5 includes a box 3 and a driver 4, wherein an upper surface and a lower surface of the box 3 are respectively provided with an upper opening 31 and a lower opening 32; the lower opening 32 is communicated with the feed port 11; the lower opening 32 is provided with a hinge 34 in clearance fit with the lower opening 32; one end of the hinge 34 is hinged with one side of the lower opening 32, and the other end of the hinge is a free end which can move up and down relative to the lower opening 32; a connecting rod 33 is arranged on one side of the free end of the hinge 34; the connecting rod 33 is hinged with the hinge 34; the driver 4 is located at one side of the box 3, and the output end of the driver is horizontally towards the inside of the box and is fixedly connected with the other end of the connecting rod 33.
In this embodiment, initially, the hinge 34 is located at the lower opening 32, with the bottom of the box 3 in a sealed condition; at this time, lithium salt may be added to the case 3 at one time and stored in the case 3; because the performance of the lithium salt is influenced by the high temperature generated after the lithium salt is added into the dissolving barrel 1, the driver 4 controls the connecting rod 33 to control the hinge 34 to move away from the lower opening 32, and the adding amount and the adding speed of the lithium salt can be controlled by adopting a mode of adding the lithium salt in sections; therefore, when the lithium salt is added, the temperature of the electrolyte in the dissolving barrel 1 is effectively controlled, automatic feeding is realized, and labor cost is reduced.
Further, as shown in fig. 1, the dissolving tank 1 has a double-layer structure, and includes an inner tank wall and an outer tank wall, and a sealed cavity 12 is disposed between the inner tank wall and the outer tank wall; and a stirring device 8 is also arranged in the dissolving bucket.
Further, as shown in fig. 1, the stirring device 8 includes a motor 81, a rotating rod 82, and a dispersion tray 83; the motor 81 is positioned on the middle surface of the upper end of the dissolving bucket 1; the rotating rod 82 is positioned in the dissolving barrel 1, wherein one end of the rotating rod is connected with the output end of the motor 81, and the other end of the rotating rod is connected with the dispersion disc 83; the stirring device 8 is used for fully and uniformly mixing the lithium salt and the solvent.
Further, as shown in fig. 1, the cooling device 7 includes an outer cooling coil 71, an inner cooling coil 72, a condenser 74, a first water pump 76, a second water pump 75, and a water tank 73; the water outlet and the water inlet of the outer cooling coil 71 and the inner cooling coil 72 are respectively connected with the condenser 74 through pipelines, the output end of the condenser 74 is connected with the water tank 73, and the first water pump 76 and the second water pump 75 are respectively arranged on the pipelines of the water inlets of the outer cooling coil 71 and the inner cooling coil 72.
Further, as shown in fig. 1, the outer cooling coil 71 is disposed inside the sealed cavity 12; the inner cooling coil pipe 72 is sleeved outside the rotating rod 82 and is positioned above the dispersing cutter 83; the water inlet and the water outlet of the internal cooling coil 72 respectively penetrate through the dissolving tank 1 and then are connected with the second water pump 75 and the water tank 73.
Further, as shown in fig. 1, a temperature sensor 9 is disposed in the dissolving tank 1, and the temperature sensor 9 is electrically connected to the first water pump 76 and the second water pump 75.
In this embodiment, the dissolution barrel 1 adopts a double-layer structure, so that the outer cooling coil 71 in the cooling device 7 is arranged in the sealed cavity 12 of the dissolution barrel 1, and the inner cooling coil 72 is fixedly sleeved outside the rotating rod 82 to form an inner and outer double-refrigeration structure; under the effect of temperature sensor 9, the break-make of first water pump 76 and second water pump 75 is controlled, can effectively control the temperature of dissolving the bucket, ensures lithium cell electrolyte quality, improves the production efficiency of electrolyte.
Further, a third pump body 10 is arranged on a pipeline connecting the dissolving barrel 1 and the preparation barrel 2; the third pump body 10 is used for pumping the solution in the dissolution barrel 1 into the preparation barrel 2 through the third pump body 10 for dissolving the lithium salt after the dissolution in the dissolution barrel 1.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the present invention.
Claims (7)
1. A lithium battery electrolyte preparation device comprises a dissolution barrel and a preparation barrel communicated with the dissolution barrel through a pipeline, and is characterized in that a feed inlet is formed in one side of the dissolution barrel, and a feed device is arranged at the feed inlet; a weighing sensor is arranged at the joint of the feeding hole and the feeding device; a cooling device is also arranged in the dissolving barrel;
the feeding device comprises a box body and a driver, wherein an upper opening and a lower opening are respectively formed in the upper surface and the lower surface of the box body; the lower opening is communicated with the feed inlet; the lower opening is provided with a hinge which is in clearance fit with the lower opening; one end of the hinge is hinged with one side of the lower opening, and the other end of the hinge is a free end which can move up and down relative to the lower opening; a connecting rod is arranged on one side of the free end of the hinge; the connecting rod is hinged with the hinge; the driver is positioned at one side of the box body, and the output end of the driver horizontally faces the inside of the box body and is fixedly connected with the other end of the connecting rod.
2. The lithium battery electrolyte preparation device of claim 1, wherein the dissolution tank is a double-layer structure comprising an inner tank wall and an outer tank wall, and a sealed cavity is arranged between the inner tank wall and the outer tank wall; and a stirring device is also arranged in the dissolving bucket.
3. The lithium battery electrolyte preparation device of claim 2, wherein the stirring device comprises a motor, a rotating rod and a dispersion plate; the motor is positioned on the middle surface of the upper end of the dissolving bucket; the rotating rod is positioned inside the dissolving barrel, one end of the rotating rod is connected with the output end of the motor, and the other end of the rotating rod is connected with the dispersion disc.
4. The lithium battery electrolyte preparation device of claim 1, wherein the cooling device comprises an external cooling coil, an internal cooling coil, a condenser, a first water pump, a second water pump and a water tank; the water outlet and the water inlet of the external cooling coil and the internal cooling coil are respectively connected with the condenser through pipelines, the output end of the condenser is connected with the water tank, and the first water pump and the second water pump are respectively arranged on the pipelines of the water inlets of the external cooling coil and the internal cooling coil.
5. The lithium battery electrolyte preparation device of claim 4, wherein the external cooling coil is disposed within the sealed cavity; the inner cooling coil is sleeved on the outer side of the rotating rod and is positioned above the dispersing cutter; and the water inlet and the water outlet of the internal cooling coil pipe penetrate through the dissolving barrel respectively and are connected with the second water pump and the water tank.
6. The lithium battery electrolyte preparation device of claim 1, wherein a temperature sensor is disposed in the dissolution tank, and the temperature sensor is electrically connected to the first water pump and the second water pump.
7. The lithium battery electrolyte preparation device of claim 1, wherein a third pump is disposed on a pipeline connecting the dissolution barrel and the preparation barrel.
Priority Applications (1)
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CN202021843802.6U CN213590341U (en) | 2020-08-29 | 2020-08-29 | Lithium battery electrolyte preparation device |
Applications Claiming Priority (1)
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CN202021843802.6U CN213590341U (en) | 2020-08-29 | 2020-08-29 | Lithium battery electrolyte preparation device |
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CN213590341U true CN213590341U (en) | 2021-07-02 |
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CN202021843802.6U Active CN213590341U (en) | 2020-08-29 | 2020-08-29 | Lithium battery electrolyte preparation device |
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