CN220984561U - Processing equipment of battery pole piece - Google Patents
Processing equipment of battery pole piece Download PDFInfo
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- CN220984561U CN220984561U CN202322374125.8U CN202322374125U CN220984561U CN 220984561 U CN220984561 U CN 220984561U CN 202322374125 U CN202322374125 U CN 202322374125U CN 220984561 U CN220984561 U CN 220984561U
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- measuring device
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- 238000000576 coating method Methods 0.000 claims abstract description 122
- 239000011248 coating agent Substances 0.000 claims abstract description 121
- 239000002002 slurry Substances 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 24
- 230000008018 melting Effects 0.000 claims description 18
- 230000033001 locomotion Effects 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 66
- 239000011889 copper foil Substances 0.000 description 64
- 229910052744 lithium Inorganic materials 0.000 description 53
- 229910000733 Li alloy Inorganic materials 0.000 description 37
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 37
- 239000001989 lithium alloy Substances 0.000 description 37
- 238000003756 stirring Methods 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 8
- 239000012943 hotmelt Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses a processing device of a battery pole piece, which comprises a coating device and a driving device; the driving device is used for driving the pole piece substrate to move along the length direction of the pole piece substrate, and the coating device is used for coating metal slurry on the surface of the moving pole piece substrate; through setting up coating unit to at the surface coating metal thick liquids of pole piece base member, utilize the pole piece base member to have good ductility in the metal of metal thick liquids, can reduce the thickness of battery pole piece, be equipped with two sets of coating assemblies simultaneously in through coating unit, with the thickness of metal thick liquids carries out the multiple adjustment on the pole piece base member, thereby reach the technological effect that promotes the thickness size accuracy of battery pole piece.
Description
Technical Field
The utility model belongs to the technical field of battery processing, and particularly relates to processing equipment for a battery pole piece.
Background
The anode of the lithium battery is usually manufactured by extruding or mould-pressing and stretching a metal lithium block or a lithium ingot into a metal lithium belt with a certain thickness.
However, this method of fabrication has two disadvantages: firstly, the thickness of extrusion (mould pressing) stretching is uneven, and the consistency of lithium sheets is difficult to ensure. The other is that the ductility of the metal lithium block is limited, and the requirement of the ultrathin lithium battery anode cannot be met.
Disclosure of utility model
In view of the above, the present utility model discloses a processing device for a battery pole piece, so as to overcome or at least partially solve the above-mentioned problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides processing equipment of a battery pole piece, which comprises a coating device and a driving device; the driving device is used for driving the pole piece substrate to move along the length direction of the pole piece substrate, and the coating device is used for coating metal slurry on the surface of the pole piece substrate;
the coating device comprises a coating assembly and a leveling assembly, wherein the coating assembly can spray the metal slurry to the pole piece substrate; the leveling component is positioned in front of the coating component along the moving direction of the pole piece substrate and is used for adjusting the thickness of the metal slurry on the pole piece substrate;
The coating assembly is at least provided with two groups, each group of coating assembly comprises two coating rollers, and the two coating rollers are respectively positioned on two sides of the pole piece substrate along the thickness direction of the pole piece substrate and are arranged at intervals with the pole piece substrate.
Further, a preset distance is respectively arranged between two coating rollers in each group of the leveling assemblies, and along the moving direction of the pole piece substrate, the preset distance between the two coating rollers in each group of the leveling assemblies is sequentially reduced.
Further, the coating component comprises a hot melting kettle and a material injection nozzle;
the material injection nozzle can spray the metal slurry to the pole piece substrate; the hot melting kettle is communicated with the material injection nozzle and used for providing the metal slurry for the material injection nozzle.
Further, the material injection nozzle reciprocates along a width direction parallel to the pole piece substrate.
Further, the plane of the pole piece matrix is parallel to the horizontal plane, and the coating assembly is at least provided with two groups and is respectively positioned above and below the pole piece matrix.
Further, the coating roller comprises a roller body, a first outer wheel and a second outer wheel;
The width of the roller body is the same as that of the pole piece substrate, and the diameter of the first outer wheel and the diameter of the second outer wheel are both larger than that of the roller body; the first outer wheel is connected with the first end face of the roller body, and the second outer wheel is connected with the second end face of the roller body.
Further, the surface of the junction of the first outer wheel and the roller body and the surface of the junction of the second outer wheel and the roller body are both provided with slurry containing grooves.
Further, the device also comprises a cooling device;
And the cooling device is positioned in front of the coating device along the moving direction of the pole piece substrate and is used for cooling the metal slurry on the pole piece substrate.
Further, the device also comprises a central control device, a first temperature measuring device and a second temperature measuring device;
The first temperature measuring device is positioned at the rear of the coating component along the moving direction of the pole piece substrate and is used for detecting the temperature of the pole piece substrate before coating; the second temperature measuring device is positioned in the coating assembly and is used for detecting the temperature in the coating assembly; the first temperature measuring device and the second temperature measuring device are electrically connected with the central control device.
Further, the device also comprises a third temperature measuring device and a fourth temperature measuring device; the third temperature measuring device is positioned in the cooling device and is used for detecting the temperature in the cooling device; along the direction of movement of the pole piece matrix, the fourth temperature measuring device is positioned in front of the cooling device and is used for detecting the temperature of the cooled pole piece matrix, and the third temperature measuring device and the fourth temperature measuring device are electrically connected with the central control device.
The utility model has the advantages and beneficial effects that:
In the processing equipment of the battery pole piece, the coating device is arranged, the surface of the pole piece substrate is coated with the metal slurry, the thickness of the battery pole piece can be reduced by utilizing the good ductility of the pole piece substrate compared with the metal in the metal slurry, and meanwhile, the thickness of the metal slurry on the pole piece substrate is adjusted for multiple times by at least two groups of leveling components arranged in the coating device, so that the technical effect of improving the thickness dimension accuracy of the battery pole piece is achieved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic structural view of connection between a driving device and a pole piece substrate in the processing equipment of a battery pole piece of the embodiment;
Fig. 2 is a schematic structural view of a coating device in the processing apparatus of a battery pole piece of the present embodiment;
Fig. 3 is a schematic view showing the structure between the coating device and the cooling device in the processing apparatus of the battery pole piece of the present embodiment;
Fig. 4 is a schematic structural view of a coating roller in the processing apparatus of a battery pole piece of the present embodiment.
In the figure: 1. a coating device; 2. a pole piece substrate; 3. a driving device; 4. a cooling device; 5. a central control device; 6. a first temperature measuring device; 7. a second temperature measuring device; 8. a third temperature measuring device; 9. a fourth temperature measuring device; 11. a coating assembly; 12. a leveling assembly; 12a, a first leveling component; 12b, a second leveling assembly; 12c, a third leveling component; 31. a first driving roller; 32. a second driving roller; 111. a hot melting kettle; 112. a lithium melting kettle; 113. a material injection nozzle; 121. coating rollers; 122. a roller body; 123. a first outer wheel; 124. a second outer wheel; 125. pulp containing groove.
Detailed Description
In order to make the objects, technical solutions and effects of the present utility model more clear, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The following describes in detail the technical solutions provided by the embodiments of the present utility model with reference to the accompanying drawings.
As shown in fig. 1 to 4, the processing apparatus for a battery pole piece of the present embodiment may be processing apparatus for a lithium battery anode, in which the pole piece substrate 2 is copper foil and the metal paste is lithium alloy paste. Based on this, by coating the lithium alloy paste on the copper foil as the lithium battery anode, the thickness of the formed lithium battery anode can be reduced by utilizing the good ductility of the copper metal, and the lithium battery anode material of various thicknesses can be adapted.
Of course, in other embodiments, corresponding adjustments may be required to the material of the pole piece substrate and the type of metal paste.
The processing equipment of the battery pole piece comprises a coating device 1 and a driving device 3. The driving device 3 is used for driving the copper foil to move along the length direction of the copper foil, and the coating device is used for coating lithium alloy slurry on the surface of the copper foil to form the anode of the lithium battery.
Wherein the driving means 3 comprise a first driving roller 31 and a second driving roller 32. The pole piece base body 2 is subjected to winding and unwinding operation through cooperation between the first driving roller 31 and the second driving roller 32, and then copper foil is moved from the position of the first driving roller 31 to the position of the second driving roller 32, the coating device 1 is positioned between the first driving roller 31 and the second driving roller 32, namely, the copper foil is wound on the first driving roller 31, the first driving roller 31 rotates and transmits the copper foil to the direction of the second driving roller 32 so as to realize unwinding operation, and the copper foil is wound and transported through the second driving roller after forming a lithium battery anode, so that the lithium battery anode is convenient to store and transport.
Specifically, as shown in connection with fig. 2, the coating apparatus 1 includes a coating assembly 11 and a leveling assembly 12. The coating assembly 11 can spray a lithium alloy paste onto the copper foil. Along the moving direction of the copper foil, the leveling component 12 is positioned in front of the coating component 11, i.e. the leveling component 12 is positioned on the right side of the coating component 11, and the thickness of the lithium alloy slurry coated on the surface of the copper foil can be adjusted through the leveling component. Wherein the copper foil moves to the right as shown in fig. 2.
Further, in the present embodiment, the leveling component 12 is provided with three sets, a first leveling component 12a, a second leveling component 12b, and a third leveling component 12c, respectively, and is disposed in order along the moving direction of the copper foil. Each group of leveling components 12 comprises two coating rollers 121, the two coating rollers 121 are symmetrically arranged on two sides of the copper foil in the thickness direction of the copper foil, and are arranged at intervals with the copper foil, and the thickness of lithium alloy slurry on the surface of the copper foil is adjusted by adjusting the distance between the coating rollers and the copper foil.
In summary, in the processing equipment of the lithium battery anode of this embodiment, through setting up coating device to coating lithium alloy thick liquids on the surface of copper foil, in order to form the lithium battery anode, utilize metallic copper to have good ductility in the metallic lithium and can reduce the thickness of lithium battery anode, be equipped with three group in the coating device simultaneously and scribble flat subassembly, can carry out a lot of adjustment to the thickness of lithium alloy thick liquids on the copper foil, thereby reach the technological effect that promotes the thickness size accuracy of lithium electrode anode.
In addition, as shown in fig. 2, a preset distance is provided between the two coating rollers 121 in each leveling component 12, and along the moving direction of the copper foil, the preset distance between the two coating rollers 121 in each leveling component 12 and the copper foil sequentially decreases, and the preset distance between the two coating rollers in a group of leveling components far away from the coating component is the thickness required by the anode of the lithium battery, that is, the distance between the two coating rollers in the first leveling component 12a > the distance between the two coating rollers in the second leveling component 12b > the distance between the two coating rollers in the third leveling component 12c, and the distance between the two coating rollers in the third coating roller group is equal to the thickness dimension of the anode of the lithium battery required in the embodiment.
Based on this, coating device can be stepwise and adjusts the thickness of coating lithium alloy thick liquids gradually to promote lithium alloy thick liquids and scribble the homogeneity, when avoiding setting up the lithium alloy thick liquids on a set of coating device adjustment copper foil surface, appear copper foil partial surface lithium alloy thick liquids vacancy, influence the condition emergence of copper foil surface lithium alloy thick liquids homogeneity.
Further, as shown in connection with fig. 4, in the present embodiment, the coating roller includes a roller body 122, a first outer wheel 123, and a second outer wheel 124. The width dimension of the roller body 122 is equal to the width dimension of the anode of the lithium battery, the diameter of the first outer wheel 123 and the diameter of the second outer wheel 124 are both larger than the diameter of the roller body 122, the first outer wheel 123 is connected with the first end face of the roller body 122, the second outer wheel 124 is connected with the second end face of the roller body 122, the position of the copper foil along the width direction of the copper foil can be limited through the first outer wheel and the second outer wheel, the position offset between the barrel foil and the roller body is prevented, and therefore the effect of improving the position stability of the copper foil in the transmission process is achieved.
The first end surface of the roller body 122 is detachably connected with the first outer wheel 123, and the second end surface of the roller body 122 is detachably connected with the second outer wheel 124, for example, threaded connection is adopted, so that when copper foils with different widths are replaced, only the roller body needs to be replaced without replacing the first outer wheel and the second outer wheel, and the first outer wheel and the second outer wheel can be reused, so that the processing cost of the anode of the lithium battery is reduced.
Further, the surface of the connection between the first outer wheel 123 and the roller body 122 and the surface of the connection between the second outer wheel 124 and the roller body 122 are both provided with slurry containing grooves 125. When the thickness of the lithium alloy slurry on the surface of the copper foil is adjusted, a small amount of lithium alloy slurry is adhered to the surface of the roller body, and along with the rolling of the roller body, the redundant lithium alloy slurry can enter the slurry containing groove, so that the service time of the coating roller is prolonged, the replacement and cleaning times of the coating roller are reduced, and the processing speed of the anode of the lithium battery is improved.
In addition, as shown in connection with fig. 2, in the present embodiment, the coating assembly 11 includes a hot-melt pot 111, a lithium-melt pot 112, and an injection nozzle 113. The feed end of the hot melt pot 111 communicates with a lithium melt pot 112, and the lithium melt pot 112 is used for melting lithium metal and alloying the molten lithium metal to form a viscous lithium alloy slurry. The discharge end of the hot melting kettle 111 is communicated with the injection nozzle 113, and the hot melting kettle 111 is used for stirring and providing lithium alloy slurry for the injection nozzle 113, so that the uniformity of the lithium alloy slurry is improved. Meanwhile, the hot melting kettle 111 also has a heating function, so that the lithium alloy slurry can be always in a molten state. And the injection nozzle 113 is used to apply a lithium alloy paste to the copper foil.
Wherein, stirring the lithium alloy slurry through setting up stirring fan blade in the hot melt cauldron 111 to stirring speed of stirring fan blade can be adjusted, concretely can be through servo motor drive stirring fan blade's rotation, the rotation speed of stirring fan blade is adjusted as required.
Based on this, the processing equipment of the battery pole piece also comprises a heating device, for example, the battery pole piece is heated by hot air. The heating device is located the position department that the copper foil will be transmitted to the coating subassembly, can heat the copper foil for lithium alloy thick liquid is in molten state all the time in the coating process, with promoting lithium alloy thick liquid and scribble the flat effect, avoids the copper foil to lose the temperature of lithium alloy thick liquid, makes the condition emergence that the molten state of lithium alloy thick liquid is unstable and influences the coating effect.
In other embodiments, the coating assembly may further be provided with only a hot-melt kettle and a material injection nozzle, where the hot-melt kettle may be capable of melting lithium metal and alloying the molten lithium metal, and may be capable of stirring lithium metal slurry to improve uniformity of the lithium metal slurry.
In addition, in this embodiment, the plane of the pole piece substrate is parallel to the horizontal plane, and as shown in fig. 2, the coating assembly 11 is provided with two groups, i.e., a first coating assembly and a second coating assembly, which are respectively located above and below the copper foil, and the coating assembly 11 can simultaneously perform double-sided coating on the copper foil, so as to improve the coating efficiency.
Based on this, first coating subassembly is located the top of copper foil, and the second coating subassembly is located the below of copper foil, and first coating subassembly and second coating subassembly spray the lithium alloy thick liquids that have viscidity to the surface of copper foil, and lithium alloy thick liquids can glue on the copper foil like this and avoid the whereabouts to reduce the use amount of lithium alloy thick liquids, reach the technological effect that reduces use cost. Meanwhile, the condition that the thickness of the anode of the lithium battery is influenced by the dripping of the lithium alloy slurry is avoided, and therefore the effect of improving the thickness accuracy of the anode of the lithium battery is achieved.
Of course, in other embodiments, the number of coating modules may be adjusted according to the injection efficiency.
Further, in other embodiments, the positions of the first coating component and the second coating component need to be adjusted accordingly according to the difference of the length and thickness placement positions of the copper foil.
In addition, in the present embodiment, the material injection nozzle 113 reciprocates along the width direction parallel to the pole piece substrate 2, that is, the movement direction of the material injection nozzle 113 is parallel to the width direction of the copper foil and moves at a uniform speed, so that the uniformity of the lithium metal slurry sprayed by the material injection nozzle is improved. Meanwhile, the material injection nozzle 113 can be matched with the moving direction of the copper foil, so that the coated track is an arc line, and the lithium alloy slurry can be fully distributed on the copper foil.
Of course, in other embodiments, according to different spraying ranges of the material injection nozzle, the material injection nozzle can also fully cover the width of the copper foil, so that the movement of the material injection nozzle is not needed, and the technical effect of coating uniformity of the material injection nozzle can be achieved.
Furthermore, as shown in connection with fig. 3, in the present embodiment, it is preferable that the processing apparatus of the electrode sheet further comprises a cooling device 4. Along the direction of movement of copper foil, cooling device 4 is located the place ahead of coating subassembly 11, and cooling device 4 is located the right of coating subassembly 11 promptly, can cool down the lithium alloy thick liquids on the copper foil to promote cooling rate, thereby shorten lithium battery positive pole preparation cycle, in order to reach the effect that improves lithium battery positive pole preparation speed. The cooling device may be an air cooling device.
In addition, the processing equipment of the lithium battery anode further comprises a central control device 5, a first temperature measuring device 6 and a second temperature measuring device 7. Along the moving direction of the copper foil, the first temperature measuring device 6 is located at the rear of the coating assembly 11, that is, the first temperature measuring device 6 is located at the left side of the coating device 1, and specifically the first temperature measuring device 6 may be located in the heating device to detect the temperature of the surface of the copper foil before coating. The second temperature measuring device 7 is located in the coating assembly 11 and may be located above the copper foil, enabling detection of the temperature of the copper foil position in the coating assembly.
Further, the first temperature measuring device 6 and the second temperature measuring device 7 are respectively and electrically connected with the central control device 5, and the detected temperature is uploaded to the central control device 5, and the central control device 5 can analyze and compare the temperature detected by the first temperature measuring device 6 with the temperature detected by the second temperature measuring device 7, namely detect the temperature difference between the temperature before copper foil coating and the temperature in the coating assembly, so that the condition that the coating effect is affected due to overlarge temperature difference consumption of lithium metal slurry in the coating assembly is prevented.
Specifically, the central control device is turned on by controlling the red light electrically connected with the central control device. Meanwhile, the central control device controls an alarm electrically connected with the central control device to sound, namely, the temperature of the copper foil before coating is required to be adjusted.
Further, as shown in fig. 3, the processing apparatus for a lithium battery anode further includes a third temperature measuring device 8 and a fourth temperature measuring device 9. The third temperature measuring device 8 is positioned in the cooling device 4, along the moving direction of the copper foil, the third temperature measuring device 8 is positioned in front of the cooling device 4, and the third temperature measuring device 8 and the fourth temperature measuring device 9 are positioned above the copper foil and are respectively and electrically connected with the central control device 5.
Specifically, the temperature in the cooling device is detected through the third temperature measuring device, the temperature after the copper foil is cooled is detected through the fourth temperature measuring device, the temperature is respectively uploaded into the central control device, and the temperature difference between the third temperature measuring device and the fourth temperature measuring device is monitored through the central control device to serve as an adjustment basis for controlling the cooling speed of the cooling device so as to ensure that the surface temperature of the copper foil is suitable for rolling storage.
The specific operation steps of the processing equipment of the battery pole piece in the embodiment are as follows:
Step S1, preparing the processing equipment of the battery pole piece. The operating parameters of the processing equipment of the battery pole piece are set by the central control device 5, including but not limited to the operating speeds of the first driving roller 31 and the second driving roller 32, the heating and melting temperature of the hot melting kettle 111, the stirring speed in the lithium melting kettle 112 and the cooling speed in the cooling device.
And S2, forming lithium metal slurry. Metallic lithium is put into a lithium melting kettle 112 for melting. The molten lithium metal is then alloyed to form a viscous lithium alloy slurry, and the lithium alloy slurry is fed into a hot melt tank 111.
And S3, coating lithium metal slurry. First, a fifth temperature measuring device is arranged in the hot melting kettle, so that the temperature in the hot melting kettle is continuously detected by the fifth temperature measuring device and is uploaded to the central control device 5.
Then, when the temperature in the hot-melting kettle 111 reaches the set working temperature, namely, when the lithium metal is ensured to be in the form of slurry, the central control device 5 controls the hot-melting kettle 111 to continuously stir the lithium metal slurry.
When the temperature in the hot-melting kettle 111 does not reach the set working temperature, the central control device 5 simultaneously starts the stirring program and the heating program in the hot-melting kettle until the set working temperature is reached, so that the lithium metal slurry is always in a molten state.
Finally, the stirred lithium alloy slurry is sprayed onto the copper foil through the material injection nozzle 113, and meanwhile, the material injection nozzle 113 can perform uniform motion along the width direction parallel to the copper foil, so that the uniformity of the lithium metal slurry sprayed by the material injection nozzle is improved. The copper foil with the lithium alloy paste was sequentially passed through the first leveling component 12a, the second leveling component 12b and the third leveling component 12c to form the thickness of the anode of the lithium battery required in the present embodiment.
Of course, in other embodiments, in step S3, when the temperature in the hot-melting kettle does not reach the set working temperature, the central control device may first start the heating procedure in the hot-melting kettle, and after reaching the set working temperature, the stirring degree may be started to stir the lithium metal slurry.
Step S4, activation of the driving means 3 and the cooling means 4. Starting the driving device 3 and the cooling device 4, realizing automatic coating of the copper foil, storing and transporting the copper foil through the driving device 3 after finishing coating, and accelerating the cooling speed of the copper foil with lithium alloy slurry by the cooling device 4.
Meanwhile, the central control device 5 monitors the temperatures measured by the first temperature measuring device 6, the second temperature measuring device 7, the third temperature measuring device 8 and the fourth temperature measuring device 9 in real time, and also monitors the temperature difference between the first temperature measuring device 6 and the second temperature measuring device 7 and the temperature difference between the third temperature measuring device 8 and the fourth temperature measuring device 9 so as to adjust the heating speed of the heating device and the cooling speed of the cooling device in real time.
The foregoing is merely a specific embodiment of the utility model and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the utility model more fully, and that the scope of the utility model is defined by the appended claims.
Claims (10)
1. The processing equipment of battery pole piece, its characterized in that: comprises a coating device and a driving device; the driving device is used for driving the pole piece substrate to move along the length direction of the pole piece substrate, and the coating device is used for coating metal slurry on the surface of the pole piece substrate;
the coating device comprises a coating assembly and a leveling assembly, wherein the coating assembly can spray the metal slurry to the pole piece substrate; the leveling component is positioned in front of the coating component along the moving direction of the pole piece substrate and is used for adjusting the thickness of the metal slurry on the pole piece substrate;
The coating assembly is at least provided with two groups, each group of coating assembly comprises two coating rollers, and the two coating rollers are respectively positioned on two sides of the pole piece substrate along the thickness direction of the pole piece substrate and are arranged at intervals with the pole piece substrate.
2. The battery pole piece processing apparatus of claim 1, wherein: the preset distances are respectively arranged between the two coating rollers in each group of the leveling assemblies, and along the moving direction of the pole piece substrate, the preset distances between the two coating rollers in each group of the leveling assemblies are sequentially reduced.
3. The battery pole piece processing apparatus of claim 1, wherein: the coating component comprises a hot melting kettle and a material injection nozzle;
the material injection nozzle can spray the metal slurry to the pole piece substrate; the hot melting kettle is communicated with the material injection nozzle and used for providing the metal slurry for the material injection nozzle.
4. A processing apparatus for a battery pole piece according to claim 3, wherein: and the material injection nozzle reciprocates along the width direction parallel to the pole piece substrate.
5. The battery pole piece processing apparatus of claim 1, wherein: the plane of the pole piece substrate is parallel to the horizontal plane, and the coating assembly is at least provided with two groups and is respectively positioned above and below the pole piece substrate.
6. The battery pole piece processing apparatus of claim 1, wherein: the coating roller comprises a roller body, a first outer wheel and a second outer wheel;
The width of the roller body is the same as that of the pole piece substrate, and the diameter of the first outer wheel and the diameter of the second outer wheel are both larger than that of the roller body; the first outer wheel is connected with the first end face of the roller body, and the second outer wheel is connected with the second end face of the roller body.
7. The battery pole piece processing apparatus of claim 6, wherein: and slurry containing grooves are formed in the surface of the joint of the first outer wheel and the roller body and the surface of the joint of the second outer wheel and the roller body.
8. The battery pole piece processing apparatus of claim 1, wherein: also comprises a cooling device;
And the cooling device is positioned in front of the coating device along the moving direction of the pole piece substrate and is used for cooling the metal slurry on the pole piece substrate.
9. The battery pole piece processing apparatus of claim 8, wherein: the device also comprises a central control device, a first temperature measuring device and a second temperature measuring device;
The first temperature measuring device is positioned at the rear of the coating component along the moving direction of the pole piece substrate and is used for detecting the temperature of the pole piece substrate before coating; the second temperature measuring device is positioned in the coating assembly and is used for detecting the temperature in the coating assembly; the first temperature measuring device and the second temperature measuring device are electrically connected with the central control device.
10. The battery pole piece processing apparatus of claim 9, wherein: the device also comprises a third temperature measuring device and a fourth temperature measuring device; the third temperature measuring device is positioned in the cooling device and is used for detecting the temperature in the cooling device; along the direction of movement of the pole piece matrix, the fourth temperature measuring device is positioned in front of the cooling device and is used for detecting the temperature of the cooled pole piece matrix, and the third temperature measuring device and the fourth temperature measuring device are electrically connected with the central control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322374125.8U CN220984561U (en) | 2023-09-01 | 2023-09-01 | Processing equipment of battery pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322374125.8U CN220984561U (en) | 2023-09-01 | 2023-09-01 | Processing equipment of battery pole piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220984561U true CN220984561U (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322374125.8U Active CN220984561U (en) | 2023-09-01 | 2023-09-01 | Processing equipment of battery pole piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220984561U (en) |
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- 2023-09-01 CN CN202322374125.8U patent/CN220984561U/en active Active
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