Double-sided light lithium battery copper foil surface modification treatment equipment and treatment process thereof

Abstract

The invention discloses double-sided light lithium battery copper foil surface modification treatment equipment and a treatment process thereof, and relates to the technical field of light lithium battery copper foils, the double-sided light lithium battery copper foil surface modification treatment equipment comprises a supporting mechanism, the supporting mechanism comprises a modification pool, a first conveying belt is arranged on the left side of the modification pool, a second conveying belt is arranged on the right side of the modification pool, and a motor is fixedly connected to the bottom end of the modification pool; a modification mechanism is arranged in the modification pool, a drying mechanism is arranged on the right side of the modification pool, the modification mechanism comprises an adjusting channel for changing the dip dyeing line distance of the lithium battery copper foil in a modification material, the adjusting channel is arranged in the modification pool, and the modification mechanism is used for carrying out different degrees of surface modification operation on the lithium battery copper foil with different requirements. According to the device, different modification degrees can be adjusted according to the copper foils with different final requirements, specific modification links are adjusted according to the modification dosage, the situation that the performance of the copper foils exceeds the specific application requirement due to excessive dosage is avoided, and the situation that the cost is increased due to excessive performance is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical lithium battery copper foil, in particular to a double-sided optical lithium battery copper foil surface modification treatment equipment and its treatment process. BACKGROUND

[0002] Double-sided optical lithium battery copper foil surface modification treatment refers to introducing or changing the chemical composition, microstructure or surface morphology on the surface of lithium battery copper foil through a specific process method to improve its performance, such as oxidation resistance, corrosion resistance, electrical conductivity or adhesion to positive and negative electrode materials, etc.

[0003] However, the existing optical lithium battery copper foil modification treatment has the following defects:

[0004] Firstly, copper foil modification is generally to coat a conductive adhesive coating on its surface, such as current collector and ester liquid. The performance requirements of optical lithium battery copper foil after surface modification are different under different environmental requirements, so the required amount of modification is different. If the amount of ester liquid is too small, the performance of copper foil will exceed the requirements of specific applications, the excess performance will not only increase the cost, but also may bring unnecessary risks, such as causing short circuit or corrosion problem in the battery, and may also change the mechanical properties of copper foil, such as strength and ductility, leading to problems in the processing or use of copper foil. If the amount of ester liquid is too much, the corrosion resistance of copper foil may not be effectively improved, so that the copper foil is easy to corrode during the use of the battery, leading to the decline of the performance of the battery, and the performance of the copper foil cannot meet the application requirements of the battery, affecting the performance and life of the battery.

[0005] Secondly, after the modification of copper foil is completed, it also needs to be dried. However, during drying, some toxic gases may be emitted from the surface chemicals, which may cause serious health risks to human body, including respiratory diseases, nervous system damage, skin diseases, etc. The untreated toxic gas emission into the atmosphere will cause serious pollution to the environment, affect air quality, and further affect the ecological system and public health. Some toxic gases are flammable and explosive, and if they are not collected and treated, the risk of fire and explosion will increase, leading to serious production accidents. SUMMARY

[0006] (I) Technical problems to be solved

[0007] In view of the above-mentioned defects existing in the prior art, the present application provides a double-sided optical lithium battery copper foil surface modification treatment equipment and its treatment process, which can effectively solve the problems of optical lithium battery copper foil in the prior art.

[0008] (II) Technical solutions

[0009] To achieve the above purpose, the present application is realized by the following technical solutions,

[0010] The application discloses a double-sided light lithium battery copper foil surface modification treatment equipment and a treatment process thereof, which comprises a supporting mechanism, the supporting mechanism comprises a modification pool, a conveying belt one is arranged on the left side of the modification pool, a conveying belt two is arranged on the right side of the modification pool, a motor is fixedly connected to the bottom end of the modification pool, a modification mechanism is arranged in the modification pool, and a drying mechanism is arranged on the right side of the modification pool.

[0011] The modification mechanism comprises an adjusting channel for changing the immersion line distance of the lithium battery copper foil in the modification material, the adjusting channel is arranged in the modification pool, and the modification mechanism is used for performing surface modification operation of different degrees on light lithium battery copper foils with different requirements.

[0012] The drying mechanism comprises a gas collecting hopper for collecting and assisting in conveying the gas generated during the drying of the copper foil, the gas collecting hopper is arranged on the right side of the modification pool, and the drying mechanism is used for performing the drying of the modified copper foil and the collection of the toxic gas generated during the drying.

[0013] Further, the modification mechanism comprises a fixed table, the fixed table is fixedly connected with the modification pool, eight blocking rods are fixedly connected to the front end of the fixed table, the distance between the eight blocking rods is equal, an upper bending channel is fixedly connected to the front end of the fixed table, the lower surface of the upper bending channel is fixedly connected with the adjusting channel, and the lower surface of the adjusting channel is fixedly connected with a lower bending channel.

[0014] Further, the rear end of the lower bending channel is fixedly connected with a lifting table, the rear end of the lifting table is slidingly connected with the modification pool, the front end of the lifting table is also fixedly connected with the blocking rod, a vertical worm is rotatably connected to the right end of the lifting table, a longitudinal rack is meshingly connected to the side, away from the blocking rod, of the vertical worm, and the modification pool is fixedly connected to the right side of the longitudinal rack.

[0015] Further, a concave plate is slidingly connected to the surface of the adjusting channel, a clamping plate is rotatably connected to the front end of the concave plate, a telescopic rod is fixedly connected to the front end of the clamping plate, a short rack is fixedly connected to the bottom end of the telescopic rod, the lower surface of the short rack is meshingly connected with a power worm, and the output shaft of the motor is fixedly connected to the right side of the power worm through the modification pool.

[0016] Further, the drying mechanism comprises an intermittent wheel, the intermittent wheel is fixedly connected to one end of the conveying belt two close to the modification pool, a dial wheel is arranged at the top end of the intermittent wheel, a cam one is fixedly connected to the side, away from the modification pool, of the dial wheel, and the cam one is arranged on the side, away from the modification pool, of the conveying belt two.

[0017] Further, the cam two is provided with a top wheel one away from one end of the modification pool, the top wheel one and the cam two are in contact, the top wheel one is fixedly connected with a piston away from one end of the cam two, the outer surface of the piston is slidably connected with a pipeline one, the pipeline one is fixedly connected with a gas collecting hopper away from the piston, the gas collecting hopper is located above the conveying belt two, the length of the gas collecting hopper is matched with the width of the conveying belt two, the gas collecting hopper is provided with a top wheel two at the front and rear ends, and the gas collecting hopper is provided with a dryer on the two sides.

[0018] Further, the pipeline one is fixedly connected with a pipeline two on one side of the top end of the top wheel one, the pipeline two is slidably connected with a sleeve away from one end of the piston, the bottom end of the sleeve is provided with a storage bottle, the storage bottle is placed on the upper surface of the conveying belt two, the sleeve is fixedly connected with a top wheel two away from the gas collecting hopper, the bottom end of the top wheel two is in contact with the cam one, and the top wheel two is slidably connected with the top end and the support.

[0019] A double-sided light lithium battery copper foil surface modification treatment process, comprising the following steps:

[0020] Step 1: Ensure that the modification treatment equipment is in normal working condition, check whether each part of the equipment is intact, including the dyeing pool, the drying device, and the toxic gas collecting system;

[0021] Step 2: Prepare enough double-sided light lithium battery copper foil raw materials, confirm that the surface of the copper foil is free of scratches and stains, and prepare the corresponding chemical reagents according to the modification requirements, including the dyeing liquid, the cleaning agent, and the drying agent;

[0022] Step 3: Put the treated copper foil into the dyeing pool and soak it in the pre-prepared modification dyeing liquid, and adjust the modification degree of the copper foil in the pool according to the final required copper foil requirements;

[0023] Step 4: Take out the modified copper foil and put it into the drying device for heating and drying, adjust the temperature controller to keep the temperature unchanged, and avoid copper foil deformation or burning;

[0024] Step 5: Collect the harmful gas generated in the drying process into a special container through the collecting system, ensure the continuity of the process, properly handle the collected harmful gas, and prevent leakage;

[0025] Step 6: Record the parameters in the modification process, including the dyeing time, temperature, and performance indicators of the modified copper foil, provide reference for subsequent production, and clean the equipment after finishing to remove residual chemicals.

[0026] Further, in step 4, the drying device should have good ventilation conditions to better discharge the harmful gas generated in the drying process.

[0027] Furthermore, in step 5, the collected harmful gases must be properly treated, including by methods such as activated carbon adsorption and chemical neutralization.

[0028] (III) Beneficial Effects

[0029] Compared with known prior art, the technical solution provided by this invention has the following beneficial effects:

[0030] 1. Equipped with a vertical worm gear, an adjusting channel, and a fixed platform, the vertical worm gear is manually rotated. The worm gear meshes with the longitudinal rack at its bottom, causing the lower lifting platform to rise and fall. This movement changes the distance between the lifting platform and the fixed platform, thereby adjusting the length of the adjusting channel. Different channel lengths result in different movement paths for the copper foil driven by the clamping plate. The clamping plate moves smoothly under the engagement of the bottom power worm gear, ultimately completing the modification operation for copper foil to meet different requirements. This device can adjust the degree of modification for copper foil with different final requirements, adjusting the specific modification steps according to the amount of modification used. This avoids excessive modification that would exceed the specific application requirements, preventing excessive performance from increasing costs, reducing the risk of short circuits, and maintaining the mechanical properties of the copper foil to prevent problems during processing. It also avoids insufficient modification that would fail to improve the corrosion resistance of the copper foil, preventing corrosion during battery use, improving battery performance, and extending its service life.

[0031] 2. The device is equipped with a dial wheel, pipe one, and pipe two. The dial wheel rotates intermittently under the action of the top moving wheel. The dial wheel is connected to cam one and cam two, which rotate synchronously. Cam two abuts against top wheel one on one side to open and close pipe one. The opening and closing allows the toxic gas entering the gas collection hopper to intermittently enter pipe two. Cam one abuts against top wheel two to complete the collection of harmful gases. This device can dry copper foil that has undergone modification and absorb and collect the toxic and harmful gases generated during the drying process. On the one hand, drying can avoid solvent residue that reduces the quality of copper foil and maintain normal electrochemical performance. On the other hand, gas collection can prevent the gas from causing serious health risks to the human body, including systemic diseases and skin diseases. It can also prevent harmful gases from being emitted into the atmosphere, prevent serious environmental pollution, maintain good air quality, and avoid production accidents caused by explosions of certain flammable and explosive gases. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 isometric view of the present application;

[0034] Figure 2 isometric view of the present application; Figure 1 isometric view of the present application;

[0035] Figure 3 isometric view of the present application;

[0036] Figure 4 isometric view of the present application; Figure 3 isometric view of the present application;

[0037] Figure 5 isometric view of the present application;

[0038] Figure 6 isometric view of the present application; Figure 5 isometric view of the present application;

[0039] Figure 7 isometric view of the present application;

[0040] Figure 8 isometric view of the present application;

[0041] Figure 9 isometric view of the present application;

[0042] Figure 10 isometric view of the present application;

[0043] Figure 11 isometric view of the present application;

[0044] The numbers in the figures represent, respectively, 100, supporting mechanism; 101, modification pool; 102, conveying belt one; 103, conveying belt two; 104, motor; 105, power worm;

[0045] 200, modification mechanism; 201, fixed platform; 202, blocking rod; 203, upper curved channel; 204, lower curved channel; 205, adjusting channel; 206, lifting platform; 207, vertical worm; 208, longitudinal rack; 209, short rack; 210, telescopic rod; 211, clamping plate; 212, concave plate;

[0046] 300, drying mechanism; 301, intermediate wheel; 302, dial wheel; 303, cam one; 304, cam two; 305, top wheel one; 306, piston; 307, pipeline one; 308, gas collecting hopper; 309, pipeline two; 310, sleeve; 311, containing bottle; 312, top wheel two; 313, dryer. DETAILED DESCRIPTION

[0047] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0048] The present application will be further described in conjunction with the embodiments.

[0049] A double-sided light lithium battery copper foil surface modification treatment equipment and treatment process of the present embodiment, as shown in Figure 1 Figure 11 The support mechanism 100 includes a modification tank 101, a conveying belt one 102 is arranged on the left side of the modification tank 101, a conveying belt two 103 is arranged on the right side of the modification tank 101, a motor 104 is fixedly connected to the bottom end of the modification tank 101, a modification mechanism 200 is arranged in the modification tank 101, and a drying mechanism 300 is arranged on the right side of the modification tank 101.

[0050] The modification mechanism 200 includes an adjusting channel 205 for changing the immersion line distance of the lithium battery copper foil in the modification material, and the adjusting channel 205 is arranged in the modification tank 101. The modification mechanism 200 is used for performing surface modification operation of different degrees on light lithium battery copper foils with different requirements.

[0051] As a preferred embodiment in the present embodiment, as shown in Figure 1 Figure 11 The modification mechanism 200 includes a fixed table 201, the fixed table 201 is fixedly connected with the modification tank 101, eight stop rods 202 are fixedly connected to the front end of the fixed table 201, the distances between the eight stop rods 202 are equal, an upper bending channel 203 is fixedly connected to the front end of the fixed table 201, the lower surface of the upper bending channel 203 is fixedly connected with the adjusting channel 205, and the lower surface of the adjusting channel 205 is fixedly connected with a lower bending channel 204.

[0052] As a preferred embodiment in the present embodiment, as shown in Figure 1 Figure 11 ​​​As shown, the rear end of the lower curved channel 204 is fixedly connected with a lifting platform 206, the rear end of the lifting platform 206 is slidingly connected with the modified pool 101, the front end of the lifting platform 206 is also fixedly connected with the blocking rod 202, and the right end of the lifting platform 206 is rotatably connected with a vertical worm 207, the side of the vertical worm 207 away from the blocking rod 202 is meshingly connected with a longitudinal rack 208, and the right side of the longitudinal rack 208 is fixedly connected with the modified pool 101.

[0053] In this embodiment, as shown in Figure 1 - Figure 11 As shown, the surface of the adjusting channel 205 is slidingly connected with a concave plate 212, the front end of the concave plate 212 is rotatably connected with a clamping plate 211, the front end of the clamping plate 211 is fixedly connected with a telescopic rod 210, the bottom end of the telescopic rod 210 is fixedly connected with a short rack 209, the lower surface of the short rack 209 is meshingly connected with the power worm 105, and the right side of the power worm 105 is fixedly connected with the output shaft of the motor 104.

[0054] Compared with the prior art, the device can adjust the modification degree of the copper foil according to different final requirements, adjust the specific link of modification according to the amount of modification, avoid the performance of the copper foil exceeding the specific application requirement due to excessive amount, prevent the cost increase caused by excessive performance, reduce the risk of short circuit problem, maintain the mechanical performance of the copper foil to prevent problems in processing, avoid the inability to improve the corrosion resistance of the copper foil due to insufficient amount, avoid corrosion during battery use, improve the performance of the battery, and prolong the service life of the battery.

[0055] In other aspects, the embodiment also provides a recycling structure, as shown in Figure 1 - Figure 11 As shown, the drying mechanism 300 includes a gas collecting hopper 308 for collecting and assisting in conveying the gas generated during drying of the copper foil, and the gas collecting hopper 308 is arranged on the right side of the modified pool 101, and the drying mechanism 300 is used for drying the modified copper foil and collecting the toxic gas generated during drying.

[0056] As a preferred embodiment in this embodiment, as shown in Figure 1 - Figure 11 As shown, the drying mechanism 300 includes an intermediate wheel 301 fixedly connected to one end of the second conveying belt 103 close to the modified pool 101, the top end of the intermediate wheel 301 is provided with a pawl 302, one side of the pawl 302 away from the modified pool 101 is fixedly connected with a cam 303, the cam 303 is arranged on the side of the second conveying belt 103 away from the modified pool 101, and one side of the cam 303 away from the pawl 302 is fixedly connected with a cam 304.

[0057] In this embodiment, as shown in Figure 1 - Figure 11As shown, the end of the cam 304 away from the modification tank 101 is provided with a top wheel 305, the top wheel 305 and the cam 304 are in contact, the end of the top wheel 305 away from the cam 304 is fixedly connected with a piston 306, the outer surface of the piston 306 is slidably connected with a pipeline 307, the end of the pipeline 307 away from the piston 306 is fixedly connected with a gas collecting hopper 308, the gas collecting hopper 308 is located above the conveying belt 103, the length of the gas collecting hopper 308 is matched with the width of the conveying belt 103, the front and back ends of the gas collecting hopper 308 are provided with top wheels 312, and the two sides of the gas collecting hopper 308 are provided with drying machines 313.

[0058] In this embodiment, as shown in the figure, Figure 1 Figure 11 Figure 1 Figure 11 As shown, the side top end of the pipeline 307 close to the top wheel 305 is fixedly connected with a pipeline 309, the end of the pipeline 309 away from the piston 306 is slidably connected with a sleeve 310, the bottom end of the sleeve 310 is provided with a containing bottle 311, the containing bottle 311 is placed on the upper surface of the conveying belt 103, the side of the sleeve 310 away from the gas collecting hopper 308 is fixedly connected with a top wheel 312, the bottom end of the top wheel 312 is in contact with the cam 303, and the top end of the top wheel 312 and the bracket are slidably connected.

[0059] Compared with the prior art, the device can dry the copper foil which has completed the modification operation, and can absorb and collect toxic and harmful gas generated when the copper foil is dried. On the one hand, drying can avoid the decrease of copper foil quality caused by solvent residue, and can maintain normal electrochemical performance. On the other hand, gas collection can avoid serious health risks to the human body, including systemic diseases and skin diseases, can avoid harmful gas emission into the atmosphere, prevent serious environmental pollution, maintain good air quality, and can avoid production accidents caused by explosion of some flammable and explosive gases.

[0060] In other aspects, the embodiment also provides a double-sided light lithium battery copper foil surface modification treatment process, which comprises the following steps:

[0061] Step 1: Ensure that the modification treatment equipment is in normal working condition, check whether each part of the equipment is intact, including the dip tank, the drying device, and the toxic gas collection system;

[0062] Step 2: Prepare enough double-sided light lithium battery copper foil raw materials, confirm that the surface of the copper foil is free of scratches and stains, and prepare corresponding chemical reagents according to the modification requirements, including dip solution, cleaning agent, and drying agent;

[0063] Step 3: Put the treated copper foil into the dip tank and soak it in the pre-prepared modification dip solution, and adjust the modification degree of the copper foil in the tank according to the final requirements of the copper foil;

[0064] ​Step 4: Take out the modified copper foil and place it in a drying device for heating and drying. Adjust the temperature controller to maintain a constant temperature to prevent deformation or burning of the copper foil.

[0065] Step 5: Collect the harmful gases generated during the drying process through the collection system into a special container, and ensure the continuity of the process. Properly handle the collected harmful gases to prevent leakage.

[0066] Step 6: Record the parameters during the modification process, including immersion time, temperature, and performance indicators of the modified copper foil, to provide reference for subsequent production. After completion, clean the equipment to remove residual chemicals.

[0067] In this embodiment, the drying device in step 4 should have good ventilation conditions to better exhaust the harmful gases generated during the drying process.

[0068] In this embodiment, the collected harmful gases in step 5 need to be properly treated, including using activated carbon adsorption and chemical neutralization methods.

[0069] The specific working principle of the above embodiment is as follows:

[0070] In the operation of surface modification of double-sided light lithium copper foil, the most important link and core step is the surface modification. The modification operation is to place the copper foil as a whole into an immersion pool to coat it with modification materials including electrolyte solution and organic solvent, which can complete the surface modification treatment.

[0071] Before modifying the copper foil, place the copper foil on the conveyor belt one 102, and let the conveyor belt one 102 carry a long copper foil from left to right to prepare to send the copper foil into the modification pool 101 on the right side for modification.

[0072] After the preparation work is completed, the motor 104 on the right side of the modification pool 101 is started, the motor 104 drives the power worm 105 fixedly connected with the output end of the motor 104 to rotate, the length of the power worm 105 penetrates through the entire modification pool 101, and the upper surface of the power worm 105 is meshingly connected with the short rack 209 to move left and right, the movement of the short rack 209 drives the synchronous movement of the telescopic rod 210 above, the rear end of the telescopic rod 210 is connected with the clamping plate 211, the shape of the copper foil in the initial state before cutting is a long and thin sheet, and the material is soft; when the copper foil needs to be modified, the copper foil can be fixed and moved by clamping one side (narrow side) of the copper foil, the clamping plate 211 clamps a copper foil to move from left to right, that is, from the leftmost side of the modification pool 101 to the rightmost side; since the left side of the first upper bend 203 is in a downward inclined direction, that is, at the leftmost end of the modification pool 101, the first group of upper bends 203 and the adjusting channel 205 are first passed through by the copper foil entering the modification pool 101, and the left side of the first group of adjusting channels 205 is connected with a slide in a downward inclined direction; since the copper foil is initially outside the modification pool 101 and at the top, when it needs to enter the modification pool 101, it is necessary to lower the copper foil and move to the right after lowering, so that the copper foil can smoothly enter the modification pool 101. When the clamping plate 211 moves to the right, the recessed plate 212 rotationally connected with the clamping plate 211 also moves downward and slowly enters the dipping material along the direction of the upper bend 203, so that the clamping plate 211 and the copper foil also enter the coating material along the trajectory, and since the height of the clamping plate 211 is continuously lowered, the front telescopic rod 210 is passively shortened in length to cooperate with the lowering of the clamping plate 211.

[0073] When the recessed plate 212 reaches the first stopper 202, it is ready to leave the upper bend 203 and enter the adjusting channel 205 to slide, and then the continuous rotation of the motor 104 drives the recessed plate 212 and the clamping plate 211 into the adjusting channel 205, at this time the copper foil starts the coating task, and the telescopic rod 210 is continuously shortened along with the lowering of the clamping plate 211, when reaching the lowest stopper 202, the recessed plate 212 leaves the downward inclined adjusting channel 205 and enters the lower bend 204, after which the copper foil starts to end the downward coating process and enters the upward coating process, when the recessed plate 212 returns to the upward inclined adjusting channel 205 again, the copper foil as a whole will form a bent coating line with the two end stoppers 202 as the inflection points;

[0074] After the process, the clamping plate 211 will drive the copper foil to form a continuous process of repeated uplink and downlink with a cycle of the upper bend 203, the adjustment channel 205 and the lower bend 204, until the short rack 209 at the end moves to the right end of the modification pool 101, when the concave plate 212 comes to the last upper bend 203, it will gradually leave the liquid surface along the end of the uplink direction, and leave the modification pool 101, at this time, the coating process of the copper foil can be completed.

[0075] If the conductive requirements of the copper foil are different, or the use scenarios of the copper foil are different, or the actual situation is different, if the same moving line is adopted, although the time of the copper foil in the paint is consistent, only depends on the motor 104 and the rotation speed of the motor 104, but the conductive layer on its surface is always consistent, and there is no difference in the degree of conductivity, which cannot adapt to the work in various environments. This structure can flexibly and variably adapt to the copper foil conductive layer coating operation under different requirements, that is, the operator manually controls to adjust the distance between the upper bend 203 and the lower bend 204 on the upper and lower sides in the modification pool 101, to affect the inclination degree of the adjustment channel 205, so that the contact between the copper foil surface and the modified ester is increased, and then the thickness of the modified ester liquid on the surface of the copper foil is changed. The control of the conductive performance and corrosion resistance of the copper foil changes the thickness of the conductive layer on the surface of the copper foil by changing the moving path of the copper foil in the modification pool 101 under the condition that the copper foil coating time is unchanged. The specific performance is that the inclination degree of the copper foil changes when it moves in the modification pool 101. When the moving path of the copper foil in the modification pool 101 is lengthened, the thickness of the conductive layer on its surface will be thicker, and the transmission electric capacity will be stronger. Conversely, when the moving path of the copper foil in the modification pool 101 is shortened, the conductive layer on its surface will be thinned, and the conductive capacity will be weakened. It can adapt to some environments that do not require too strong conductive conditions. Although the conductive capacity is weakened, a certain amount of paint can complete more copper foil dipping operation, because for some use scenarios, the conductive capacity of the copper foil does not need to be too strong, and it can cope with the current environment;

[0076] By manually rotating the vertical worm 207 at the right end of the modification tank 101, the bottom end of the vertical worm 207 is rotated, the vertical worm 207 is engaged with the longitudinal rack 208, the longitudinal rack 208 is fixed, then the vertical worm 207 will move upward during rotation, the vertical worm 207 will drive the bottom end of the fixed connection of the lifting platform 206 to move upward together, because the fixed platform 201 above the modification tank 101 is fixedly connected with the modification tank 101, the distance between the fixed platform 201 and the lifting platform 206 will be shortened, when the distance between the two is shortened, the length of the adjusting channel 205 between the two will also be shortened accordingly, the adjusting channel 205 is essentially an extensible rod, which can freely extend and contract, change length, and its length is determined by the fixed platform 201 and the lifting platform 206, but no matter whether the adjusting channel 205 is extended or shortened, the recessed plate 212 will recess into the distribution that fits the adjusting channel 205, so that the recessed plate 212 always slides along the adjusting channel 205 as a track;

[0077] According to the different corrosion resistance and conduction requirements of the copper foil, the distance between the fixed platform 201 and the lifting platform 206 can be adjusted appropriately, which mainly depends on the required use scene and the performance of the copper foil. If the use scene is more severe, the corrosion resistance and conduction performance of the copper foil itself also need to be increased, then the distance is adjusted to be larger, the adjusting channel 205 is lengthened, the distance between the upper and lower stop rods 202 is larger, the copper foil in the coating has a more curved coating line, the path of contacting the coating is longer, and more coating can be attached to the surface. If the copper foil is not required to be used in a harsh environment, the corrosion resistance and conduction ability of the copper foil is not high, and it is not necessary to coat too much conductive layer coating, then the distance between the fixed platform 201 and the lifting platform 206 can be reduced, so that the adjusting channel 205 is shortened, and the distance between the upper and lower stop rods 202 is smaller, the bending degree of the copper foil in the liquid is weakened, and becomes more gentle, then the contact path of the copper foil in the liquid is shortened, and the coating degree is also weakened.

[0078] After the modification, the copper foil also needs to be dried and dehumidified. When the copper foil is taken out from the right side of the modification tank 101, it will naturally enter the surface of the second conveyor belt 103. The idler 301 above the second conveyor belt 103 is provided with an external power source, so that the idler 301 rotates at a constant speed. The top end of the idler 301 is provided with a pinion 302, which can drive the second conveyor belt 103 to rotate and move above it while passing under the gas collector 308. When the surface protrusions of the pinion 302 are embedded in the grooves on the surface of the idler 301, the pinion 302 will drive the idler 301 to rotate, and the idler 301 will also drive the second conveyor belt 103 fixedly connected to the rear side to rotate. The second conveyor belt 103 carries the copper foil to move to the right side, while the rear end of the pinion 302 is fixedly connected to the cam 303, and the cam 304 is fixedly connected to the rear side of the cam 303. When the cam 304 rotates, it will touch the top wheel 305 on the right side. The shape of the cam 304 is set to be large on one side and small on the other side, so that when it touches the top wheel 305, the top wheel 305 will slide regularly left and right. At the same time, the top wheel 305 will drive the piston 306 fixedly connected to the right side, so that the piston 306 slides in the pipe 307. On the other hand, when the copper foil moving on the second conveyor belt 103 passes under the gas collector 308, the dryers 313 on both sides of the second conveyor belt 103 will fan towards the direction of the copper foil for drying. In the process of drying, the copper foil will produce some toxic and harmful gases. The harmful gases will rise due to heating, but since the gas collector 308 is arranged a small distance above the second conveyor belt 103, the gases will enter the gas collector 308 during the rising process. In addition, the width of the gas collector 308 is consistent with the width of the second conveyor belt 103, so the gases will only be under the gas collector 308 during the heating process, and will not spread elsewhere. The other end of the gas collector 308 is connected to the pipe 307. When the top wheel 305 and the piston 306 slide away from the cam 304, the piston 306 will block the communication passage between the pipe 307 and the pipe 309. At this time, the harmful gases collected in the gas collector 308 cannot enter the pipe 309 through the pipe 307. When the smaller protrusion of the cam 304 rotates away from the top wheel 305, the top wheel 305 and the piston 306 will move to the left under the push of the gas in the pipe 307, until the piston 306 no longer blocks the communication port between the pipe 307 and the pipe 309. At this time, the pipe 307 and the pipe 309 are connected and integrated, and the gases in them can continue to move through the pipe 307 and the pipe 309.To make the movement of the cam 304 and the top wheel 305 more coherent, a spring can be connected between the cam 304 and the top wheel 305, to ensure that when the protruding part of the cam 304 is disengaged from the top wheel 305, the top wheel 305 can continue to adhere to the cam 304 and move to the left, instead of being forced to move by the gas.

[0079] On the other side, when the cam 303 fixedly connected in front of the cam 304 rotates and contacts the top wheel 312, the top wheel 312 will also be affected by the shape of the cam 303. When the smaller protruding part of the cam 303 pushes up the top wheel 312, the top wheel 312 will be forced to move up. The top wheel 312 is fixedly connected to the sleeve 310, which is slidably connected to the pipe 309 at the top and has a gas storage bottle 311 at the bottom. When the top wheel 312 drives the sleeve 310 to move down, the piston 306 also moves to the leftmost position, and the gas flows through the pipe 307, the pipe 309, and the sleeve 310, and finally enters the storage bottle 311. When the top wheel 312 moves up, the sleeve 310 is disengaged from the storage bottle 311, and the piston 306 also moves to the right, disconnecting the pipe 307 and the pipe 309. At this time, the gas can no longer flow through the pipe 309, and it cannot enter the storage bottle 311. The storage bottle 311 also moves to the right intermittently with the conveyor belt 103. When the sleeve 310 moves down, the storage bottle 311 moves to the bottom of the sleeve 310 to complete the collection of gas. By dividing the harmful gas into multiple small bottles, it can be more convenient to transport, and by using appropriate packaging and protection measures, there is no need to worry about the stability of large containers during transportation. Compared with large-capacity collection, small bottles can be more flexible in storage, and even if the storage space is limited, they can be arranged and stacked appropriately to make full use of the space.

[0080] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A double-sided lithium battery copper foil surface modification treatment device, comprising a support mechanism (100), the support mechanism (100) comprising a modification tank (101), a first conveyor belt (102) disposed on the left side of the modification tank (101), a second conveyor belt (103) disposed on the right side of the modification tank (101), and a motor (104) fixedly connected to the bottom end of the modification tank (101), characterized in that, The modification tank (101) is equipped with a modification mechanism (200) inside, and a drying mechanism (300) is provided on the right side of the modification tank (101); The modification mechanism (200) includes an adjustment channel (205) for changing the immersion distance of the lithium-ion battery copper foil in the modification material. The adjustment channel (205) is disposed inside the modification pool (101). The modification mechanism (200) is used to perform different degrees of surface modification operations on the lithium-ion battery copper foil with different requirements. The drying mechanism (300) includes a gas collection hopper (308) for collecting and assisting in the transport of gases generated during the drying of copper foil. The gas collection hopper (308) is located on the right side of the modification tank (101). The drying mechanism (300) is used to dry the modified copper foil and collect the toxic gases generated during the drying process.

2. The double-sided lithium battery copper foil surface modification treatment equipment according to claim 1, characterized in that, The modification mechanism (200) includes a fixed platform (201) and a modification pool (101) fixedly connected. Eight stops (202) are fixedly connected to the front end of the fixed platform (201), and the distance between the eight stops (202) is equal. An upper bend (203) is fixedly connected to the front end of the fixed platform (201). The lower surface of the upper bend (203) is fixedly connected to an adjustment channel (205), and a lower bend (204) is fixedly connected to the lower surface of the adjustment channel (205).

3. The double-sided lithium battery copper foil surface modification treatment equipment according to claim 2, characterized in that, The rear end of the lower bend (204) is fixedly connected to a lifting platform (206), the rear end of the lifting platform (206) is slidably connected to the modification pool (101), the front end of the lifting platform (206) is also fixedly connected to the stop bar (202), the right end of the lifting platform (206) is rotatably connected to a vertical worm gear (207), the side of the vertical worm gear (207) away from the stop bar (202) is meshed with a longitudinal rack (208), and the right side of the longitudinal rack (208) is fixedly connected to the modification pool (101).

4. The double-sided lithium battery copper foil surface modification treatment equipment according to claim 3, characterized in that, The surface of the regulating channel (205) is slidably connected to a concave plate (212), and the front end of the concave plate (212) is rotatably connected to a clamping plate (211). The front end of the clamping plate (211) is fixedly connected to a telescopic rod (210), and the bottom end of the telescopic rod (210) is fixedly connected to a short rack (209). The lower surface of the short rack (209) is meshed with a power worm gear (105), and the right side of the power worm gear (105) passes through the modification tank (101) and is fixedly connected to the output shaft of the motor (104).

5. The double-sided lithium battery copper foil surface modification treatment equipment according to claim 1, characterized in that, The drying mechanism (300) includes an intermittent pulley (301), which is fixedly connected to one end of the second conveyor belt (103) near the modification tank (101). A dial wheel (302) is provided at the top of the intermittent pulley (301). A cam (303) is fixedly connected to the side of the dial wheel (302) away from the modification tank (101). The cam (303) is located on the side of the second conveyor belt (103) away from the modification tank (101). A cam (304) is fixedly connected to the side of the cam (303) away from the dial wheel (302).

6. The double-sided lithium battery copper foil surface modification treatment equipment according to claim 5, characterized in that, A top wheel (305) is provided at the end of the cam 2 (304) away from the modification tank (101). The top wheel 1 (305) abuts against the cam 2 (304). A piston (306) is fixedly connected to the end of the top wheel 1 (305) away from the cam 2 (304). A pipe 1 (307) is slidably connected to the outer surface of the piston (306). The end of the pipe 1 (307) away from the piston (306) is fixedly connected to the gas collecting hopper (308). The gas collecting hopper (308) is located above the conveyor belt 2 (103). The length of the gas collecting hopper (308) is adapted to the width of the conveyor belt 2 (103). Top wheels 2 (312) are provided at the front and rear ends of the gas collecting hopper (308). Dryers (313) are provided on both sides of the gas collecting hopper (308).

7. The double-sided lithium battery copper foil surface modification treatment equipment according to claim 6, characterized in that, The top end of the first pipe (307) near the top wheel (305) is fixedly connected to the second pipe (309). The end of the second pipe (309) away from the piston (306) is slidably connected to the sleeve (310). The bottom end of the sleeve (310) is provided with a receiving bottle (311). The receiving bottle (311) is placed on the upper surface of the second conveyor belt (103). The side of the sleeve (310) away from the gas collecting hopper (308) is fixedly connected to the top wheel (312). The bottom end of the top wheel (312) abuts against the first cam (303). The top end of the top wheel (312) is slidably connected to the support.

8. A surface modification process for double-sided bright lithium-ion battery copper foil, wherein the process is based on the implementation process of a surface modification equipment for double-sided bright lithium-ion battery copper foil according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Ensure the modification treatment equipment is in normal working condition and check that all components of the equipment are intact, including the dyeing tank, drying device, and toxic gas collection system; Step 2: Prepare sufficient double-sided bright lithium battery copper foil raw materials, confirm that there are no scratches or stains on the surface of the copper foil, and at the same time prepare the corresponding chemical reagents according to the modification requirements, including dyeing solution, cleaning agent and drying agent. Step 3: Place the treated copper foil into the dyeing tank and immerse it in the pre-prepared modified dyeing solution. Adjust the degree of modification of the copper foil in the tank according to the final requirements of the copper foil. Step 4: Take out the modified copper foil, put it into the drying device, heat and dry it, adjust the temperature controller to keep the temperature constant, and avoid deformation or burning of the copper foil; Step 5: Collect the harmful gases generated during the drying process into a special container through a collection system, and ensure the continuity of the process. Properly treat the collected harmful gases to prevent leakage. Step 6: Record all parameters during the modification process, including immersion time, temperature, and performance indicators of the modified copper foil, to provide a reference for subsequent production. After completion, clean the equipment to remove residual chemicals.

9. The surface modification process for double-sided lithium-ion battery copper foil according to claim 8, characterized in that, In step 4, the drying device should have good ventilation to better remove harmful gases generated during the drying process.

10. The surface modification process for double-sided lithium-ion battery copper foil according to claim 8, characterized in that, In step 5, the collected harmful gases need to be properly treated, including by activated carbon adsorption and chemical neutralization.

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