Processing equipment for positive electrode of lithium ion battery

Abstract

The utility model discloses processing equipment for a positive electrode of a lithium ion battery, which relates to the technical field of lithium ion battery processing and comprises a sintering equipment body, a storage box is mounted at the upper end of the sintering equipment body, the inside of the sintering equipment body is connected with the storage box through a first exhaust pipe, and a connecting coil pipe is arranged at one end of the first exhaust pipe. A second exhaust pipe is arranged at the other end of the connecting coil pipe, the other end of the second exhaust pipe extends out of the side end of the storage box, a stirring assembly is installed in the storage box, assembly blocks are symmetrically and movably connected to the end, close to the first exhaust pipe, of the storage box, blowing assemblies are installed in the assembly blocks, and connecting assemblies are symmetrically installed at one ends of the assembly blocks. By the adoption of the structure, heat energy of flue gas can be effectively recycled and used in the drying process, so that the utilization efficiency of energy is improved, energy consumption is reduced, dried raw materials are beneficial to reducing defects in the sintering process, and therefore the density and electrochemical performance of positive electrode materials are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium-ion battery processing, and particularly relates to a processing device for the positive electrode of a lithium-ion battery. Background Technique

[0002] A lithium-ion battery is a rechargeable battery. Its positive electrode material is usually made of lithium metal oxide, and the negative electrode is composed of carbonaceous material. This battery realizes the charge and discharge process through the movement of lithium ions between the positive and negative electrodes, so it is named lithium-ion battery. During charging, lithium ions are removed from the positive electrode and embedded in the negative electrode through the electrolyte, realizing the conversion of electrical energy into chemical energy; during discharging, on the contrary, lithium ions are removed from the negative electrode and embedded in the positive electrode through the electrolyte, converting chemical energy into electrical energy. Among them, for the processing device of the positive electrode of a lithium-ion battery, the main technological processes include batching, mixing, sintering, pulverizing, screening, iron removal, packaging, etc. These processes require different devices to complete to ensure the quality and performance of the positive electrode.

[0003] However, when the sintering equipment on the market at present conducts high-temperature treatment on the positive electrode raw materials, the flue gas generated by combustion is directly filtered and purified through the exhaust pipe and then directly discharged, resulting in the ineffective utilization of the waste heat in the flue gas, causing waste of thermal energy. Moreover, the positive electrode raw materials need to be additionally dried before sintering, which requires additional energy input such as electricity and gas, thereby increasing the energy consumption and cost in the production process. Content of the Utility Model

[0004] Aiming at the problems mentioned in the background technique, the purpose of the utility model is to provide a processing device for the positive electrode of a lithium-ion battery to solve the problem that the flue gas generated by combustion is directly filtered and purified through the exhaust pipe and then directly discharged, resulting in the ineffective utilization of the waste heat in the flue gas and causing waste of thermal energy.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A processing device for the positive electrode of a lithium-ion battery, comprising a sintering device body. A control component is installed at one end of the sintering device body. A material taking port is arranged at one end of the sintering device body close to the control component. A storage bin is threadedly connected to the upper end of the sintering device body. The combustion chamber inside the sintering device body is connected to the storage bin through a first exhaust pipe and extends into the interior of the storage bin. One end of the first exhaust pipe close to the interior of the storage bin is provided with a connecting coil pipe. The other end of the connecting coil pipe is provided with a second exhaust pipe, and the other end of the second exhaust pipe extends out of the side end of the storage bin. A stirring component is installed inside the storage bin. Assembly blocks are symmetrically and movably connected to one end of the storage bin close to the first exhaust pipe. A blowing component is installed inside the assembly blocks. Connecting components are symmetrically installed at one end of the assembly blocks. An inclined plate is arranged at the bottom end inside the storage bin. A feeding pipe is arranged at one end of the storage bin away from the first exhaust pipe, and the feeding pipe is fixedly connected to the side end of the sintering device body. It can effectively recover the heat energy of the flue gas for the drying process, thereby improving the energy utilization efficiency, reducing energy consumption, and the dried raw materials help to reduce defects in the sintering process, thereby improving the density and electrochemical performance of the positive electrode material.

[0007] As a preferred technical solution, the blowing component includes a through hole, a fan, a retaining net and a dust-proof net. Through holes are symmetrically opened at one end of the assembly block. A fan is electrically connected inside the through hole. A retaining net is threadedly connected to one end inside the through hole. A dust-proof net is threadedly connected to the end inside the through hole away from the retaining net. Connecting ports are symmetrically opened at one end of the storage bin close to the connecting coil pipe, and the connecting ports are communicated with the through holes, which can accelerate the circulation of hot air, improve the heat energy utilization efficiency, and can reduce energy consumption while ensuring the drying effect.

[0008] As a preferred technical solution, the connecting component includes a return spring, a pressing plate, a pressing block and a clamping block. Connecting blocks are symmetrically arranged at one end of the assembly block close to the storage bin. A receiving cavity is opened inside the connecting block. Return springs are symmetrically arranged at one end inside the receiving cavity. A pressing plate is arranged at the other end of the return spring. A pressing block and a clamping block are respectively arranged at the end of the pressing plate away from the return spring. The ends of the pressing block and the clamping block away from the pressing plate both extend out of the side end of the connecting block. Connecting grooves are symmetrically opened at one end of the storage bin close to the assembly block, the connecting grooves are inserted into the connecting blocks, and a clamping groove is opened at one end inside the connecting groove, and the clamping groove is clamped with the clamping block.

[0009] As a preferred technical solution, the stirring component includes a driving motor, a rotating column and stirring blades. A driving motor is installed at one end of the storage bin. The output end of the driving motor extends into the interior of the storage bin and is provided with a rotating column through a rotating shaft. The end of the rotating column away from the driving motor is rotatably connected to one end inside the storage bin. Stirring blades are symmetrically arranged on the outer side wall of the rotating column far away, which can make the raw materials heat more evenly during the drying process, so as to obtain better drying quality.

[0010] As a preferred technical solution, the control component includes a control console, a display screen, control buttons, and indicator lights. A control console is installed at one end of the sintering equipment body close to the material taking port, a display screen is installed at one end of the control console away from the biomass evaporator body, and control buttons and indicator lights are symmetrically installed at one end of the control console close to the display screen. This not only improves the operation convenience and user-friendliness of the equipment but also enhances the safety and reliability of the equipment.

[0011] As a preferred technical solution, a feeding port is opened at the upper end of the storage bin, and a feeding hopper is arranged at the upper end of the feeding port, which facilitates pouring raw materials into the storage bin and improves the working efficiency of the operators.

[0012] In summary, the main beneficial effects of the present utility model are as follows:

[0013] First, in the present utility model, when sintering the positive electrode raw materials inside the sintering equipment body, the generated flue gas flows through the first exhaust pipe to the connecting coil pipe, and then flows from the connecting coil pipe to the second exhaust pipe. At the same time, the fan is started, and the fan is controlled to rotate forward, blowing the external air into the storage bin through the through holes. The external air is filtered through the filter screen, and finally heated by the heat of the flue gas through the connecting coil pipe and blown onto the raw materials inside the storage bin to dry the raw materials. It can effectively recover the heat energy of the flue gas for the drying process, thereby improving the energy utilization efficiency, reducing energy consumption, and the dried raw materials help to reduce defects in the sintering process, thus improving the density and electrochemical performance of the positive electrode material.

[0014] Second, in the present utility model, when pressing the pressing block, the pressing plate drives the clamping block to move downward, the pressing plate presses against the return spring, and the return spring is compressed. At the same time, the clamping block retracts into the accommodating cavity. Then, the assembling block is combined with the storage bin, so that the connecting block is inserted into the connecting groove. Then, the pressing block is released, the return spring resets, the pressing plate rebounds and drives the clamping block to pop out, and the clamping block is clamped and fixed with the clamping groove. This facilitates the quick installation and disassembly of the blowing component, which can not only improve the maintenance efficiency of the equipment but also reduce the losses caused by shutdown. Moreover, since the maintenance and repair process is simpler and does not require complex operations or professional tools, the operation is safer. At the same time, it also means that the maintenance cost can be reduced, and the overall maintenance cost of the equipment can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 is a three-dimensional sectional structural schematic diagram of the storage bin of the present utility model.

[0017] Figure 3 is of the present utility model Figure 2Enlarged view of part A.

[0018] Figure 4 It is a schematic perspective sectional structure diagram of the connection component of the present utility model.

[0019] Reference numerals: 1, sintering equipment body; 2, material taking port; 3, control component; 31, control console; 32, display screen; 33, control button; 34, indicator light; 4, storage bin; 5, feeding port; 6, feeding hopper; 7, first exhaust pipe; 8, connecting coil pipe; 9, second exhaust pipe; 10, conveying pipe; 11, inclined plate; 12, stirring component; 121, driving motor; 122, rotating column; 123, stirring blade; 13, assembling block; 14, blowing component; 141, through hole; 142, fan; 143, retaining net; 144, dust-proof net; 15, connection port; 16, connecting block; 17, connection groove; 18, accommodating cavity; 19, connection component; 191, return spring; 192, pressing plate; 193, pressing block; 194, clamping block; 20, clamping groove. Specific embodiments

[0020] Embodiment

[0021] Reference Figures 1 to 4 Referring to, a lithium-ion battery positive electrode processing device described in this embodiment includes a sintering equipment body 1, a control component 3 is installed at one end of the sintering equipment body 1, a material taking port 2 is arranged at one end of the sintering equipment body 1 close to the control component 3, a storage bin 4 is threadedly connected to the upper end of the sintering equipment body 1, the combustion chamber inside the sintering equipment body 1 is connected to the storage bin 4 through a first exhaust pipe 7 and extends into the storage bin 4, a connecting coil pipe 8 is arranged at one end of the first exhaust pipe 7 close to the inside of the storage bin 4, a second exhaust pipe 9 is arranged at the other end of the connecting coil pipe 8, the other end of the second exhaust pipe 9 extends out of the side end of the storage bin 4, a stirring component 12 is installed inside the storage bin 4, assembling blocks 13 are symmetrically and movably connected to one end of the storage bin 4 close to the first exhaust pipe 7, a blowing component 14 is installed inside the assembling blocks 13, connecting components 19 are symmetrically installed at one end of the assembling blocks 13, an inclined plate 11 is arranged at the bottom end inside the storage bin 4, a conveying pipe 10 is arranged at one end of the storage bin 4 away from the first exhaust pipe 7, and the conveying pipe 10 is fixedly connected to the side end of the sintering equipment body 1. When sintering the positive electrode raw material inside the sintering equipment body 1, the generated flue gas flows through the first exhaust pipe 7 to the connecting coil pipe 8, and then flows from the connecting coil pipe 8 to the second exhaust pipe 9, and the other end of the second exhaust pipe 9 is connected to an exhaust gas purification device.

[0022] Reference Figure 3, the blowing component 14 includes a through hole 141, a fan 142, a retaining net 143 and a dustproof net 144. One end of the assembly block 13 is symmetrically provided with through holes 141. The fan 142 is electrically connected inside the through holes 141. A retaining net 143 is threadedly connected to one end inside the through holes 141. A dustproof net 144 is threadedly connected to the end of the through holes 141 away from the retaining net 143. The storage bin 4 is symmetrically provided with connection ports 15 near the end close to the connecting coil pipe. The connection ports 15 communicate with the through holes 141. Start the fan 142 and control the fan 142 to rotate forward, blowing the external air into the storage bin 4 through the through holes 141. The external air is filtered through the filter screen, and finally heated by the flue gas waste heat through the connecting coil pipe 8 and blown onto the raw materials inside the storage bin 4 to dry the raw materials.

[0023] Reference Figure 4 , the connecting component 19 includes a return spring 191, a pressing plate 192, a pressing block 193 and a clamping block 194. Connecting blocks 16 are symmetrically arranged at one end of the assembly block 13 close to the storage bin 4. An accommodation cavity 18 is formed inside the connecting blocks 16. Return springs 191 are symmetrically arranged at one end inside the accommodation cavity 18. A pressing plate 192 is arranged at the other end of the return spring 191. A pressing block 193 and a clamping block 194 are respectively arranged at the end of the pressing plate 192 away from the return spring 191. The ends of the pressing block 193 and the clamping block 194 away from the pressing plate 192 both extend out of the side end of the connecting block 16. Connecting grooves 17 are symmetrically opened at one end of the storage bin 4 close to the assembly block 13. The connecting grooves 17 are inserted with the connecting blocks 16. A clamping groove 20 is opened at one end inside the connecting grooves 17. The clamping groove 20 is clamped with the clamping block 194. Press the pressing block 193, the pressing plate 192 drives the clamping block 194 to move downward, the pressing plate 192 presses against the return spring 191, and the return spring 191 is compressed. At the same time, the clamping block 194 retracts into the accommodation cavity 18. Then, the assembly block 13 and the storage bin 4 are combined, so that the connecting block 16 is inserted into the connecting groove 17. Then release the pressing block 193, the return spring 191 resets, the pressing plate 192 rebounds to drive the clamping block 194 to pop out, and the clamping block 194 is clamped and fixed with the clamping groove 20.

[0024] Reference Figure 2 , the stirring component 12 includes a driving motor 121, a rotating column 122 and stirring blades 123. A driving motor 121 is installed at one end of the storage bin 4. The output end of the driving motor 121 extends into the storage bin 4 and is provided with a rotating column 122 through a rotating shaft. The end of the rotating column 122 away from the driving motor 121 is rotatably connected to one end inside the storage bin 4. Stirring blades 123 are symmetrically arranged on the outer side wall of the rotating column 122. Start the driving motor 121 and control the rotating column 122 to rotate. The rotating column 122 drives the stirring blades 123 to rotate, and the stirring blades 123 stir the raw materials inside the storage bin 4.

[0025] Reference Figure 1, the control component 3 includes a console 31, a display screen 32, control buttons 33 and indicator lights 34. One end of the sintering equipment body 1 close to the material taking port 2 is equipped with the console 31. One end of the console 31 away from the biomass evaporator body is equipped with the display screen 32. The control buttons 33 and the indicator lights 34 are symmetrically installed at one end of the console 31 close to the display screen 32. The operating data of the sintering equipment body 1 can be observed through the display screen 32. The operation of the sintering equipment body 1 can be controlled through the control buttons 33. The operation condition of the sintering equipment body 1 can be observed through the indicator lights 34.

[0026] Reference Figure 1 , a feeding port 5 is opened at the upper end of the storage bin 4, and a feeding hopper 6 is arranged at the upper end of the feeding port 5. The raw materials are poured into the hopper 6, and the raw materials in the hopper 6 enter the interior of the storage bin 4 through the feeding port 5.

[0027] Principle of use and advantages: First, pour the raw materials into the hopper 6, and the raw materials in the hopper 6 enter the interior of the storage bin 4 through the feeding port 5. Then, when the raw materials are sintered inside the sintering equipment body 1, the generated flue gas flows through the first exhaust pipe 7 to the connecting coil 8, and then flows from the connecting coil 8 to the second exhaust pipe 9. Start the fan 142 and control the fan 142 to rotate forward, blowing the external air through the through holes 141 into the interior of the storage bin 4. The external air is filtered through the filter screen, and finally heated by the flue gas waste heat through the connecting coil 8 and blown onto the raw materials inside the storage bin 4 to dry the raw materials. At the same time, start the driving motor 121 and control the rotating column 122 to rotate. The rotating column 122 drives the stirring blades 123 to rotate, and the stirring blades 123 stir the raw materials inside the storage bin 4;

[0028] The utility model can effectively recover the heat energy of the flue gas for the drying process, thereby improving the energy utilization efficiency, reducing the energy consumption, and the dried raw materials help to reduce the defects in the sintering process, thereby improving the density and electrochemical performance of the cathode material.

Claims

1. A positive electrode processing device for lithium-ion batteries, comprising a sintering device body (1), characterized in that: A control assembly (3) is installed at one end of the sintering equipment body (1); a material taking port (2) is arranged at one end of the sintering equipment body (1) close to the control assembly (3); a material storage box (4) is threadedly connected to the upper end of the sintering equipment body (1); an internal combustion chamber of the sintering equipment body (1) is connected to the material storage box (4) through a first exhaust pipe (7) and extends into the interior of the material storage box (4); a connecting coil (8) is arranged at one end of the first exhaust pipe (7) close to the interior of the material storage box (4); a second exhaust pipe (9) is arranged at the other end of the connecting coil (8); and the second exhaust pipe (9) is connected to the inner end of the first exhaust pipe (7) and the inner end of the second exhaust pipe (9) is connected to the inner end of the first exhaust pipe (7). One end extends out of the side end of the material storage box (4), a stirring assembly (12) is installed inside the material storage box (4), one end of the material storage box (4) close to the first exhaust pipe (7) is symmetrically and movably connected with an assembly block (13), a blowing assembly (14) is installed inside the assembly block (13), a connecting assembly (19) is symmetrically installed at one end of the assembly block (13), an inclined plate (11) is arranged at the bottom end of the material storage box (4), and a material conveying pipe (10) is arranged at the end of the material storage box (4) away from the first exhaust pipe (7), and the material conveying pipe (10) is fixedly connected to the side end of the sintering equipment body (1).

2. The positive electrode processing equipment for lithium-ion batteries according to claim 1, characterized in that: The blowing assembly (14) comprises a through hole (141), a fan (142), a blocking net (143) and a dustproof net (144); one end of the assembly block (13) is symmetrically provided with a through hole (141); the inside of the through hole (141) is electrically connected to the fan (142); one end of the inside of the through hole (141) is threadedly connected to the blocking net (143); and one end of the inside of the through hole (141) away from the blocking net (143) is threadedly connected to the dustproof net (144).

3. The positive electrode processing equipment for lithium-ion batteries according to claim 1, characterized in that: A connection port (15) is symmetrically provided at one end of the material storage box (4) close to the connecting coil, and the connection port (15) is communicated with the through hole (141).

4. The positive electrode processing equipment for lithium-ion batteries according to claim 1, characterized in that: The connecting assembly (19) comprises a return spring (191), a pressing plate (192), a pressing block (193) and a clamping block (194); a connecting block (16) is symmetrically arranged at one end of the assembly block (13) close to the material storage box (4); a receiving chamber (18) is provided inside the connecting block (16); a return spring (191) is symmetrically arranged at one end of the receiving chamber (18); a pressing plate (192) is arranged at the other end of the return spring (191); a pressing block (193) and a clamping block (194) are respectively arranged at one end of the pressing plate (192) away from the return spring (191); and the ends of the pressing block (193) and the clamping block (194) away from the pressing plate (192) extend out of the side end of the connecting block (16).

5. The positive electrode processing equipment for lithium-ion batteries according to claim 4, characterized in that: A connecting groove (17) is symmetrically provided at one end of the material storage box (4) close to the assembly block (13), and the connecting groove (17) is plug-connected with the connecting block (16). A clamping groove (20) is provided at one end inside the connecting groove (17), and the clamping groove (20) is clamped with the clamping block (194).

6. The positive electrode processing equipment for lithium-ion batteries according to claim 1, characterized in that: The stirring assembly (12) comprises a driving motor (121), a rotating column (122) and a stirring blade (123); the driving motor (121) is installed at one end of the material storage box (4); the output end of the driving motor (121) extends into the interior of the material storage box (4) and is provided with a rotating column (122) via a rotating shaft; one end of the rotating column (122) away from the driving motor (121) is rotatably connected to one end inside the material storage box (4); and the stirring blade (123) is symmetrically provided on the far outer side wall of the rotating column (122).

7. The positive electrode processing equipment for lithium-ion batteries according to claim 1, characterized in that: The control component (3) comprises a control console (31), a display screen (32), a control button (33) and an indicator light (34); the control console (31) is installed at one end of the sintering equipment body (1) close to the material taking port (2); the display screen (32) is installed at one end of the control console (31) away from the biomass evaporator body; and the control button (33) and the indicator light (34) are symmetrically installed at one end of the control console (31) close to the display screen (32).

8. The positive electrode processing equipment for lithium-ion batteries according to claim 1, characterized in that: The upper end of the material storage box (4) is provided with a material inlet (5), and the upper end of the material inlet (5) is provided with a material inlet hopper (6).

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