Defective Product Discarding Control Method, Device and Device for Battery Electrode Sheet

Abstract

The present embodiment provides a method, apparatus and device for controlling the disposal of defective electrode sheets of batteries, and relates to the field of battery technology. The method includes: when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet in a process in which the driving mechanism drives the electrode sheet of the battery to be transported to a defective disposal mechanism, recording a first distance of the defective electrode sheet, which is a distance from the defective electrode sheet to the defective disposal mechanism; when the defective electrode sheet is transported from the electrode sheet defect detection mechanism to the defective disposal mechanism, acquiring a second distance by which the driving mechanism drives the defective electrode sheet to move the defective electrode sheet, updating the first distance of the defective electrode sheet based on the second distance; and controlling the defective disposal mechanism to remove the defective electrode sheet when the updated first distance of the defective electrode sheet satisfies a preset condition.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular, to a method, apparatus, and device for controlling the rejection of defective electrode sheets of a battery.

Background Art

[0002] With the rapid development of battery technology, the application of batteries (such as lithium batteries) has become increasingly widespread. For example, batteries can be applied to automobile manufacturing to produce electric vehicles and the like. Here, the electrode sheet of the battery is one of the basic assemblies of the battery. In the production process of the battery, after performing processes such as coating, cutting, and tab welding on the positive and negative electrode sheets, the positive and negative electrode sheets are further combined with two layers of separators to form a laminated cell. However, since there may be defects in the electrode sheets of the battery before the combination, the laminated cell after the combination cannot be used, and the separators are wasted.

Summary of the Invention

[0003] The present application provides a method, apparatus, and device for controlling the rejection of defective electrode sheets of a battery, which can avoid the combination of defective electrode sheets of the battery and separators so as not to waste the separators.

[0004] According to a first aspect, there is provided a method for controlling the rejection of defective electrode sheets of a battery, which is applied to a defective product rejection device including an electrode sheet defect detection mechanism and a defective product rejection mechanism. The method for controlling the rejection of defective electrode sheets includes: In the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product rejection mechanism, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording a first distance of the defective electrode sheet, which is the distance from the defective electrode sheet to the defective product rejection mechanism; In the process of conveying the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product rejection mechanism, obtaining a second distance by which the driving mechanism drives the defective electrode sheet to move; Updating a first distance of the defective electrode sheet based on the second distance; When the first distance of the updated defective electrode sheet meets a preset condition, controlling the defective product discarding mechanism to remove the defective electrode sheet.

[0005] In an embodiment of the present application, in the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product discarding mechanism, when what the electrode sheet defect detection mechanism detects is a defective electrode sheet, the first distance from the defective electrode sheet to the defective product discarding mechanism can be recorded. In the process of the defective electrode sheet being conveyed from the electrode sheet defect detection mechanism to the defective product discarding mechanism by the driving mechanism, the second distance that the driving mechanism drives the defective electrode sheet to move is obtained, the first distance is updated in real time based on the second distance, and when the updated first distance meets a preset condition, the defective product discarding mechanism is controlled to remove the defective electrode sheet. In this way, in the process of the electrode sheet of the battery being conveyed by the defective product discarding device, the defective product discarding mechanism can be controlled to accurately remove the defective electrode sheet, avoiding the composite of the defective electrode sheet and the separator, and further avoiding the waste of the separator.

[0006] In some embodiments, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording the first distance of the defective electrode sheet is When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, adding elements related to the defective electrode sheet to a stack of the defective product discarding device, and storing the first distance of the defective electrode sheet in the stack as an element value of the elements related to the defective electrode sheet. Updating the first distance of the defective electrode sheet based on the second distance is Updating the first distance of each element in the stack based on the second distance.

[0007] In this embodiment, the first distance of the detected defective electrode sheet is stored in a stack as an element value of an element related to the defective electrode sheet, and when updating, the first distance of each element in the stack is simultaneously updated based on the second distance. Since the stack follows the first-in first-out principle and can record the element values of multiple elements simultaneously, it is possible to avoid errors in the first distances of the multiple recorded defective electrode sheets, and it is possible to simultaneously update the first distances of multiple defective electrode sheets when updating, saving computational resources.

[0008] In some embodiments, the method further includes When the element in the stack is zero or less and the length of the electrode sheet series of the battery for combining with the separator that has passed through the defective product discarding mechanism is a preset cell length, controlling the defective product discarding mechanism to cut the electrode sheet series of the battery.

[0009] In this embodiment, when the element in the stack is zero or less and the length of the electrode sheet series of the battery that has passed through the defective product discarding mechanism is a preset cell length, the defective product discarding mechanism can cut the electrode sheet series of the battery and use the cut electrode sheet series of the battery for combination with the separator, realizing not only the cutting of the defective electrode sheet but also the cutting of the normal electrode sheet.

[0010] In some embodiments, obtaining the second distance by which the driving mechanism drives the defective electrode sheet to move includes When the Nth scanning cycle arrives, obtaining the first feedback value of the driving mechanism in the Nth scanning cycle, where N is an integer greater than 1, and the first feedback value is related to the distance by which the driving mechanism drives the electrode sheet of the battery to move, and identifying the difference between the first feedback value and the second feedback value which is the feedback value of the driving mechanism in the (N - 1)th scanning cycle as the second distance.

[0011] In the present embodiment, the processor obtains the first feedback value in the current scanning period (i.e., the Nth scanning period) of the drive mechanism and the second feedback value in the previous scanning period (i.e., the (N - 1)th scanning period), and determines the difference between the first feedback value and the second feedback value as the second distance, thereby obtaining the second distance more accurately and making the method more flexible.

[0012] In some embodiments, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording the first distance of the defective electrode sheet is when the electrode sheet defect detection mechanism detects that a defect mark is attached to the electrode sheet of the battery, identifying that the electrode sheet of the battery is a defective electrode sheet, the defect mark being a mark attached to the electrode sheet of the battery of the electrode sheet roll of the battery, and the electrode sheet roll of the battery being provided in the defective product discarding device, and including recording the first distance of the defective electrode sheet.

[0013] In the present embodiment, by attaching a defect mark to the electrode sheet of the battery of the electrode sheet roll of the battery installed in the defective product discarding device, when the defective product discarding device detects the defect mark, the electrode sheet of the battery with the defect mark attached can be removed as a defective electrode sheet, and the electrode sheet of the battery in the electrode sheet roll of the battery can be removed according to the needs of the user.

[0014] In some embodiments, the defective product discarding device further includes a cutter position detection mechanism provided between the electrode sheet defect detection mechanism and the defective product discarding mechanism, before controlling the defective product discarding mechanism to remove the defective electrode sheet when the first distance of the updated defective electrode sheet meets a preset condition, Further comprising updating a first distance of the updated defective electrode sheet to a third distance that is a distance between the cutter position detection mechanism and the defective product disposal mechanism based on a cutter position signal generated when the cutter position detection mechanism detects the cutter position of the updated defective electrode sheet, Controlling the defective product disposal mechanism to remove the defective electrode sheet, Comprises controlling the defective product disposal mechanism to cut the defective electrode sheet at the cutter position to remove the defective electrode sheet.

[0015] In the present embodiment, by updating the first distance of the updated defective electrode sheet to the third distance based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position, the influence of the error of the updated first distance due to the delay of the scanning cycle can be avoided, and the cutting accuracy of the electrode sheet of the battery can be improved.

[0016] In some embodiments, in the process of driving the drive mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the drive mechanism is coupled to the defective product disposal mechanism.

[0017] Controlling the defective product disposal mechanism to cut the defective electrode sheet at the cutter position to remove the defective electrode sheet, When it is determined that the cutter position of the defective electrode sheet has reached the defective product disposal mechanism, decouple the drive mechanism and the defective product disposal mechanism, control the drive mechanism to stop driving the conveyance of the defective electrode sheet, and control the defective product disposal mechanism to cut the defective electrode sheet at the cutter position to remove the defective electrode sheet.

[0018] In this embodiment, in the process of the drive mechanism being coupled to the defective product disposal mechanism to convey the electrode sheet of the battery, when the cutter position of the defective electrode sheet reaches the cutting device, the drive mechanism is timely controlled to be decoupled from the defective product disposal mechanism, so as to realize that the drive mechanism stops driving the conveyance of the defective electrode sheet, and the cutting device is controlled to cut and remove the defective electrode sheet at the cutter position, thereby realizing the controllable stop of the defective product disposal device, ensuring the continuity of the composite production of the electrode sheet of the battery, and improving the production efficiency.

[0019] According to a second aspect, there is further provided a defective product disposal control device for an electrode sheet of a battery applied to a defective product disposal device including a drive mechanism, an electrode sheet defect detection mechanism, and a defective product disposal mechanism. The defective product disposal control device includes a first distance recording module, a second distance acquisition module, a first distance update module, and a first control module. In the process of the drive mechanism driving to convey the electrode sheet of the battery to the defective product disposal mechanism, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, the first distance recording module records the first distance of the defective electrode sheet, which is the distance from the defective electrode sheet to the defective product disposal mechanism. In the process of the defective electrode sheet being conveyed from the electrode sheet defect detection mechanism to the defective product disposal mechanism, the second distance acquisition module acquires a second distance by which the drive mechanism drives and moves the defective electrode sheet. The first distance update module updates the first distance of the defective electrode sheet based on the second distance. When the first distance of the updated defective electrode sheet meets a preset condition, the first control module controls the defective product disposal mechanism to remove the defective electrode sheet.

[0020] In an embodiment of the present application, in the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, when the electrode sheet defect detection mechanism detects that the detected one is a defective electrode sheet, the first distance from the defective electrode sheet to the defective product disposal mechanism can be recorded. In the process of conveying the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product disposal mechanism, the driving mechanism obtains a second distance for driving and moving the defective electrode sheet, and updates the first distance in real time based on the second distance. When the updated first distance meets the preset conditions, the defective product disposal mechanism is controlled to remove the defective electrode sheet. In this way, in the process of conveying the electrode sheet of the battery by the defective product disposal device, the defective product disposal mechanism can be controlled to accurately remove the defective electrode sheet, avoiding the combination of the defective electrode sheet and the separator, and avoiding the waste of the separator.

[0021] In some embodiments, the first distance recording module specifically When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, elements related to the defective electrode sheet are added to the stack of the defective product disposal device, and the first distance of the defective electrode sheet is used as the element value of the element related to the defective electrode sheet and saved in the stack. The first distance updating module specifically is used to update the first distance of each element in the stack based on the second distance.

[0022] In this embodiment, the first distance of the detected defective electrode sheet is saved in the stack as the element value of the element related to the defective electrode sheet, and when updating, the first distance of each element in the stack is updated simultaneously based on the second distance. Since the stack follows the first-in first-out principle and can record the element values of multiple elements simultaneously, errors in the first distances of multiple recorded defective electrode sheets can be avoided, and the first distances of multiple defective electrode sheets can be updated simultaneously when updating, saving computing resources.

[0023] In some embodiments, the apparatus further comprises a second control module, wherein the second control module is used to control the defective product disposal mechanism to cut the electrode sheet series of the battery when the element in the stack is zero or less and the length of the electrode sheet series of the battery passing through the defective product disposal mechanism is the preset cell length for compounding with the separator.

[0024] In this embodiment, when the element in the stack is zero or less and the length of the electrode sheet series of the battery passing through the defective product disposal mechanism is the preset cell length, the defective product disposal mechanism can cut the electrode sheet series of the battery and use the cut electrode sheet series of the battery for compounding with the separator, realizing not only the cutting of defective electrode sheets but also the cutting of normal electrode sheets.

[0025] In some embodiments, the second distance acquisition module comprises a feedback value acquisition unit and a second distance determination unit. When the Nth scanning cycle arrives, the feedback value acquisition unit acquires the first feedback value of the driving mechanism in the Nth scanning cycle, where N is an integer greater than 1, and the first feedback value is associated with the distance that the driving mechanism drives and moves the electrode sheet of the battery. The second distance determination unit is used to determine the difference between the first feedback value and the second feedback value, which is the feedback value of the driving mechanism in the (N - 1)th scanning cycle, as the second distance.

[0026] In this embodiment, the processor acquires the first feedback value in the current scanning cycle (i.e., the Nth scanning cycle) and the second feedback value in the previous scanning cycle (i.e., the (N - 1)th scanning cycle) of the driving mechanism, and determines the difference between the first feedback value and the second feedback value as the second distance, so as to more accurately acquire the second distance and make the method more flexible.

[0027] In some embodiments, the first distance recording module includes a defective electrode sheet identification unit and a first distance recording unit. When the electrode sheet defect detection mechanism detects that a defect mark is attached to the electrode sheet of the battery, the defective electrode sheet identification unit identifies the electrode sheet of the battery as a defective electrode sheet. The defect mark is a mark attached to the electrode sheet of the battery of the battery electrode sheet roll, and the battery electrode sheet roll is installed in the defective product disposal device. The first distance recording unit records the first distance of the defective electrode sheet.

[0028] In this embodiment, by attaching a defect mark to the electrode sheet of the battery of the battery electrode sheet roll installed in the defective product disposal device, when the defective product disposal device detects the defect mark, the electrode sheet of the battery with the defect mark attached can be removed as a defective electrode sheet, and the electrode sheet of the battery in the battery electrode sheet roll can be removed according to the needs of the user.

[0029] In some embodiments, the defective product disposal device further includes a cutter position detection mechanism provided between the electrode sheet defect detection mechanism and the defective product disposal mechanism.

[0030] The device includes a second distance updating module. When the cutter position detection mechanism detects the cutter of the defective electrode sheet based on the first distance of the updated defective electrode sheet, the second distance updating module updates the first distance of the updated defective electrode sheet to a third distance, which is the distance between the cutter position detection mechanism and the defective product disposal mechanism, based on the cutter position signal generated at this time.

[0031] Specifically, the first control module It is used to control the defective product disposal mechanism to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet.

[0032] In this embodiment, based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position, by updating the first distance of the updated defective electrode sheet to the third distance, the influence of the error of the updated first distance due to the delay of the scanning cycle can be avoided, and the cutting accuracy of the electrode sheet of the battery can be improved.

[0033] In some embodiments, in the process of driving the drive mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the drive mechanism is coupled to the defective product disposal mechanism. The first control module specifically is When it is determined that the cutter position of the defective electrode sheet has reached the defective product disposal mechanism, the drive mechanism and the defective product disposal mechanism are decoupled, and the drive mechanism is controlled to stop driving the conveyance of the defective electrode sheet. It is used to control the defective product disposal mechanism to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet.

[0034] In this embodiment, in the process of the drive mechanism being coupled to the defective product disposal mechanism to convey the electrode sheet of the battery, when the cutter position of the defective electrode sheet reaches the cutting device, the drive mechanism is timely controlled to be decoupled from the defective product disposal mechanism, so as to realize that the drive mechanism stops driving the conveyance of the defective electrode sheet, and the cutting device is controlled to cut and remove the defective electrode sheet at the cutter position, so as to realize the controllable stop of the defective product disposal device, ensure the continuity of the composite production of the electrode sheet of the battery, and improve the production efficiency.

[0035] In a third aspect, there is further provided a defective product disposal device including a processor, a memory, and a program or instruction stored in the memory and executable by the processor. When the program or instruction is executed by the processor, the steps of the defective product disposal control method for the electrode sheet of the battery according to any one of the first aspects are realized.

[0036] In a fourth aspect, there is further provided a readable storage medium storing a program or instruction that, when executed by a processor, realizes the steps of the defective product disposal control method for the electrode sheet of the battery according to any one of the first aspects.

Brief Description of Drawings

[0037] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiments of the present application will be briefly described below. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative labor.

[0038]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0039] Hereinafter, the embodiments of the present application will be described in more detail with reference to the drawings and embodiments. The detailed description of the following embodiments and the drawings are for exemplarily explaining the principles of the present invention, and do not limit the scope of the present invention. The present invention is not limited to the described embodiments.

[0040] In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more. The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is only for the convenience of the description of this application and the simplification of the description, and does not indicate or imply that the specified device or element must have a specific orientation and be configured and operated in a specific orientation. Therefore, it should not be understood as a limitation to this application. Also, terms such as "first", "second", "third", etc. are used only for the purpose of description and should not be understood as indicating or implying relative importance. "Vertical" does not mean vertical in a strict sense and may be within the allowable error range. "Parallel" does not mean parallel in a strict sense and may be within the allowable error range.

[0041] The orientation terms appearing in the following description are all in the directions shown in the figures and do not limit the specific structure of this application. In the description of this application, unless there are specific and clear regulations and limitations, the terms "mount", "connect", "couple" should be understood in a broad sense. For example, it may be a fixed connection, a removably connected one, or an integrally connected one, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific situation.

[0042] Referring to FIG. 1, an embodiment of this application provides a structural schematic diagram of a defective product disposal device. As shown in FIG. 1, the defective product disposal device can include a pay-off shaft 100, an electrode sheet defect detection mechanism 101, a cutter position detection mechanism 104, a drive mechanism 105, and a defective product disposal mechanism 106.

[0043] The pay-off shaft 100 is used to place the electrode sheet roll of the battery and transport the electrode sheet of the battery in the defective product disposal device by releasing the electrode sheet of the battery from the electrode sheet roll of the battery during the defective product disposal process. The electrode sheet roll of the battery may be a positive electrode sheet roll or a negative electrode sheet roll.

[0044] The electrode sheet defect detection mechanism 101 can detect whether there are defects in the electrode sheet of the passing battery, for example, whether there are creases or chips. Also, the electrode sheet defect detection mechanism 101 may be any device that can realize the defect detection of the electrode sheet of the battery. For example, the electrode sheet defect detection mechanism 101 may be an image detection device or the like.

[0045] The cutter position detection mechanism 104 can detect the cutting holes of the tabs or creases in the electrode sheet of the passing battery and can be used to generate a cutting signal. This cutter position detection mechanism may be an optical fiber sensor or the like.

[0046] The drive mechanism 105 can be used to drive the movement of the electrode sheet of the battery in the process of transporting the electrode sheet of the battery by the defective product disposal device.

[0047] The defective product disposal mechanism 106 can include a cutting device 1061 for cutting the electrode sheet of the transported battery based on the cutting signal and a defective product disposal device 1062 for winding up the defective electrode sheet of the battery cut by the cutting device 1061.

[0048] Also, the defective product disposal device may further include a tension mechanism 102 and a skew correction mechanism 103.

[0049] Naturally, the defective product disposal device further includes a processor (not shown) used to generate a control signal to control the drive mechanism 105, the cutting mechanism 106, and the defective product disposal mechanism 107 respectively in the process of transporting the electrode sheet of the battery by the defective product disposal device. Here, this processor may be a Programmable Logic Controller (PLC) or the like.

[0050] The tension mechanism 102 is used to provide tension to the electrode sheet of the battery during the process of transporting the electrode sheet of the battery by the defective product disposal device, so as to keep the electrode sheet of the battery in a tensioned state.

[0051] The skew correction mechanism 103 is used to correct the electrode sheet of the battery that has deviated from the transport path and return the electrode sheet of the battery to the transport path during the process of transporting the electrode sheet of the battery by the defective product disposal device.

[0052] Based on the above defective product disposal device, the embodiments of the present application further provide a method for controlling the disposal of defective electrode sheets of a battery. Here, the method for controlling the disposal of defective electrode sheets of a battery will be described.

[0053] FIG. 2 is a flowchart of a method for controlling the disposal of defective electrode sheets of a battery according to an embodiment of the present application. The method for controlling the disposal of defective electrode sheets of a battery is applied to the above defective product disposal device. As shown in FIG. 2, the method for controlling the disposal of defective electrode sheets of a battery includes at least the following steps 201 to 204.

[0054] In step 201, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet during the process of the driving mechanism driving the electrode sheet of the battery to be transported to the defective product disposal mechanism, record the first distance of the defective electrode sheet, which is the distance from the defective electrode sheet to the defective product disposal mechanism.

[0055] In step 202, during the process of transporting the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product disposal mechanism, obtain the second distance by which the driving mechanism drives the defective electrode sheet to move.

[0056] In step 203, update the first distance of the defective electrode sheet based on the second distance.

[0057] In step 204, when the first distance of the updated defective electrode sheet meets the preset condition, the defective product disposal mechanism is controlled to remove the defective electrode sheet.

[0058] In the embodiment of the present application, in the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, when what the electrode sheet defect detection mechanism detects is a defective electrode sheet, the first distance from the defective electrode sheet to the defective product disposal mechanism can be recorded. In the process of conveying the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product disposal mechanism, the second distance by which the driving mechanism drives the defective electrode sheet to move is obtained, and the first distance is updated in real time based on the second distance. When the updated first distance meets the preset condition, the defective product disposal mechanism is controlled to remove the defective electrode sheet. In this way, in the process of conveying the electrode sheet of the battery by the defective product disposal device, the defective product disposal mechanism can be controlled to accurately remove the defective electrode sheet, avoiding the combination of the defective electrode sheet and the separator and avoiding the waste of the separator.

[0059] In step 101 above, in the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the electrode sheet defect detection mechanism can detect whether there is a defect in the passing electrode sheet of the battery. When the electrode sheet defect detection mechanism detects that there is a defect in the electrode sheet of the battery, the processor can identify the electrode sheet of the battery passing through the electrode sheet defect detection mechanism as a defective electrode sheet. At this time, the processor records the distance from the defective electrode sheet to the defective product disposal mechanism.

[0060] Here, since the positions of the electrode sheet defect detection mechanism and the defective product disposal mechanism are fixed, the conveyance distance between the electrode sheet defect detection mechanism and the defective product disposal mechanism can be recorded as the first distance, and the conveyance distance is the distance that the electrode sheet of the battery moves from the electrode sheet defect detection mechanism to the defective product disposal mechanism.

[0061] For example, a preset conveyance distance L0 is set between the electrode sheet defect detection mechanism and the cutting device in the processor. When the electrode sheet defect detection mechanism detects a defective electrode sheet, the processor records L0 as the distance from the defective electrode sheet to the defective product disposal mechanism (i.e., the above first distance).

[0062] In addition, the above electrode sheet defect detection mechanism can detect whether there is a defect in the electrode sheet of the passing battery, and can detect whether there is a fold or a chip in the electrode sheet of the battery. When the electrode sheet defect detection mechanism detects that there is a fold or a chip in the electrode sheet of the battery, the processor identifies that the electrode sheet of the battery is a defective electrode sheet.

[0063] Note that the processor's recording of the first distance of the defective electrode sheet may be to cache the first distance of the defective electrode sheet in the memory. For example, a cache list may be set in the cache area of the processor, and the processor may cache the first distance of the defective electrode sheet in the cache list, etc.

[0064] In the above step 202, after the processor records the first distance of the defective electrode sheet, in the process of the drive mechanism driving the defective electrode sheet to be conveyed from the electrode sheet defect detection mechanism to the defective product disposal mechanism, the processor can obtain the second distance that the drive mechanism drives the defective electrode sheet to move.

[0065] Here, the processor's obtaining the second distance that the drive mechanism drives the defective electrode sheet to move may be that the processor obtains the driving speed and the timing time of the drive mechanism, and specifies the product of the driving speed and the timing time as the above second distance.

[0066] Note that the above driving speed is the speed at which the driving mechanism drives and moves the electrode sheet, and can be specified based on the rotational speed of the main shaft of the driving mechanism and the transmission parameters (such as the diameter of the gear, etc.) of the transmission assembly (such as a transmission gear, etc.) between the main shaft and the electrode sheet. The parameters of the transmission assembly are usually constant, and the idle device can calculate the above driving speed only by obtaining the rotational speed of the main shaft of the driving mechanism.

[0067] In addition, for the above processor to obtain the timing time, it may be that a timer is pre-set in the processor, and the timer starts timing when the electrode sheet defect detection mechanism detects a defective electrode sheet.

[0068] In the above step 203, after the processor obtains the second distance, the processor can update the first distance of the defective electrode sheet based on the obtained second distance.

[0069] Note that updating the first distance of the defective electrode sheet based on the second distance may be to use the difference between the first distance and the second distance as the updated first distance.

[0070] In the above step 204, after the processor updates the first distance, the processor determines whether the updated first distance meets the pre-set conditions. When it is determined that the updated first distance meets the pre-set conditions, the defective product disposal mechanism is controlled to remove the defective electrode sheet.

[0071] Here, determining whether the updated first distance meets the pre-set conditions may be to determine whether the updated first distance is zero or less. When the updated first distance is zero or less, it is determined that the updated first distance meets the pre-set conditions, and conversely, it is determined that it does not meet the conditions.

[0072] Moreover, controlling the defective product disposal mechanism to remove the defective electrode sheet means that when the processor determines that the updated first distance meets the preset condition, the processor generates a cutting signal and sends it to the cutting device. The cutting device responds to the cutting signal and cuts at the cutter position of the defective electrode sheet to achieve the excision of the defective electrode sheet. Thereafter, the defective product disposal device may wind up the excised defective electrode sheet.

[0073] Note that the cutter position is identified by a cutter position detection mechanism detecting a tab of the electrode sheet of the battery or a cutting hole between the electrode sheets of two adjacent batteries before the defective electrode sheet enters the position of the cutting device.

[0074] In some embodiments, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording the first distance of the defective electrode sheet means that when the electrode sheet defect detection mechanism detects that a defect mark is attached to the electrode sheet of the battery, it determines that the electrode sheet of the battery is a defective electrode sheet, and the defect mark is a mark on the electrode sheet of the first battery of the electrode sheet roll of the battery installed in the defective product disposal device, and recording the first distance of the defective electrode sheet.

[0075] In this embodiment, by attaching a defect mark to the electrode sheet of the battery of the electrode sheet roll of the battery installed in the defective product disposal device, when the defective product disposal device detects the defect mark, the electrode sheet of the battery with the defect mark attached can be removed as a defective electrode sheet, and the electrode sheet of the battery in the electrode sheet roll of the battery can be removed according to the needs of the user.

[0076] The electrode sheet of the battery with the defect mark attached may be the electrode sheet of any battery in the electrode sheet roll of the battery. Specifically, when installing the electrode sheet roll of the battery on the defective product disposal device, a defect mark can be attached to the electrode sheet of the battery between the electrode sheet defect detection mechanism and the electrode sheet roll of the battery.

[0077] Also, the above defect mark may be used to instruct the removal of the attached electrode sheet of the battery, or the defect mark may be used to instruct the removal of the attached electrode sheet of the battery and the electrode sheet of the battery located in front of the attached electrode sheet of the battery.

[0078] Exemplarily, in the process of passing the electrode sheet roll of the battery through the defective product disposal device, since the quality of the electrode sheet of the battery located between the electrode sheet defect detection mechanism and the cutting device is unknown after passing, in order to guarantee the quality of the electrode sheet of the composite battery, a defect mark can be attached to the electrode sheet of the first battery located between the electrode sheet defect detection mechanism and the electrode sheet roll of the battery. When the electrode sheet defect detection mechanism detects the defect mark, the processor records the first distance of the electrode sheet of the first battery, and updates the first distance until the first distance of the electrode sheet of the first battery becomes zero or less in the process of transporting the electrode sheet of the first battery to the cutting device. The cutting device cuts the electrode sheet of the first battery at the cutter position of the electrode sheet of the first battery, and winds up the cut electrode sheet of the first battery and the electrode sheet of the battery located in front of the electrode sheet of the first battery with the defective product disposal device.

[0079] In some embodiments, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording the first distance of the defective electrode sheet is When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, it includes adding elements related to the defective electrode sheet to the stack of the defective product disposal device, and saving the first distance of the defective electrode sheet as the element value of the elements related to the defective electrode sheet in the stack.

[0080] Updating the first distance of the defective electrode sheet based on the second distance is including updating the first distance of each element in the stack based on the second distance.

[0081] In this embodiment, the first distance of the detected defective electrode sheet is saved as the element value of the elements related to the defective electrode sheet in the stack. When updating, the first distance of each element in the stack is updated simultaneously based on the second distance. Since the stack follows the first-in, first-out principle and can record the element values of multiple elements simultaneously, it is possible to avoid errors in the first distances of the multiple recorded defective electrode sheets, and it is possible to update the first distances of multiple defective electrode sheets simultaneously when updating, saving computing resources.

[0082] Exemplarily, in the process of the defective product disposal device transporting the electrode sheet of the battery electrode sheet roll, when the electrode sheet defect detection mechanism detects the above-mentioned defect mark or defect, the processor identifies the defective electrode sheet, and saves the first distance L0 of the defective electrode sheet at the head of the stack in the stack BadMark_Distance Arr[], and adds 1 to the value of the number of elements BadMark_Num saved in the stack. In the process of the driving mechanism driving and transporting the electrode sheet of the battery, the processor obtains the second distance that the driven defective electrode sheet moves, and updates the element value (i.e., the first distance) BadMark_Distance Arr[Num] of each stack element in the stack BadMark_Distance Arr[], where Num = 1,..., BadMark_Num.

[0083] In some embodiments, obtaining a second distance that the drive mechanism drives the defective electrode sheet to move includes: when the Nth scanning period arrives, obtaining a first feedback value of the drive mechanism in the Nth scanning period, where N is an integer greater than 1, and the first feedback value is related to the distance that the drive mechanism drives the electrode sheet of the battery to move; identifying the difference between the first feedback value and a second feedback value that is the feedback value of the drive mechanism in the (N - 1)th scanning period as the second distance.

[0084] In this embodiment, the processor obtains the first feedback value in the current scanning period (i.e., the Nth scanning period) of the drive mechanism and the second feedback value in the previous scanning period (i.e., the (N - 1)th scanning period), and by identifying the difference between the first feedback value and the second feedback value as the second distance, the second distance can be obtained more accurately and the method can be made more flexible.

[0085] Here, the first feedback value and the second feedback value are related to the distance that the drive mechanism drives the electrode sheet of the battery to move. Specifically, the first feedback value is the conveyance distance of the drive mechanism when the Nth scanning period arrives, and the second feedback value is the conveyance distance of the drive mechanism when the (N - 1)th scanning period arrives.

[0086] For example, updating the BadMark_DistanceArr[Num] can be realized by the following formula (1).

[0087] JPEG0007705464000001.jpg14130

[0088] In Equation (1), IncEncoder is the difference between the main drive encoder feedback value recorded in the current scan cycle of the PLC (i.e., the first feedback value) and the main drive encoder feedback value recorded in the previous scan cycle (i.e., the second feedback value).

[0089] Note that the time length of each of the above scan cycles can be set according to actual needs. For example, the time length of each scan cycle can be set based on the current rotational shaft speed of the drive mechanism such that the transport distance of the drive mechanism within the scan cycle is less than or equal to the width of an electrode sheet of one battery.

[0090] In an embodiment of the present application, when the above processor can record and update the first distance of each defective electrode sheet by means of a stack, and when the updated first distance of the lowermost element of the stack satisfies a preset condition, the processor controls the cutting device to cut the defective electrode sheet corresponding to the element.

[0091] Exemplarily, when the first distance BadMark_DistanceArr[1] of the electrode sheet of the first battery with a defect mark attached to the stack is recorded, during the transport process of the electrode sheet of the battery, since the value of BadMark_DistanceArr[Num] is continuously updated and gradually decreases, when the element value BadMark_DistanceArr[1] of the lowermost element of the stack is 0 or less, the processor determines that the electrode sheet of the first battery with the defect mark attached has already reached the cutting device, and the cutting device cuts the electrode sheet of the first battery at the cutter position of the electrode sheet of the first battery.

[0092] In some embodiments, the method controls the defective product disposal mechanism to cut the electrode sheet series of the battery when the element in the stack is zero or less and the length of the electrode sheet series of the battery for combining with the separator that has passed through the defective product disposal mechanism is the preset cell length.

[0093] In this embodiment, when the element in the stack is zero or less and the length of the electrode sheet string of the battery that has passed through the defective product disposal mechanism is the preset cell length, the defective product disposal mechanism can cut the electrode sheet string of the battery and use the cut electrode sheet string of the battery for lamination with the separator, and it can realize not only the cutting of the defective electrode sheet but also the cutting of the normal electrode sheet.

[0094] Here, the above-mentioned preset cell length can be set according to actual needs. For example, when the electrode sheet of the battery is the negative electrode sheet, the preset cell length may be set as the width of one negative electrode sheet, and when the electrode sheet of the battery is the positive electrode sheet, the preset cell length may be set as the width of a plurality of positive electrode sheets.

[0095] Exemplarily, when the drive mechanism drives the electrode sheet of the battery by one cell length (i.e., the preset cell length) and the number of elements BadMark_Num value stored in the above stack BadMark_Distance Arr[] is 0 or less, it indicates that the defective electrode sheet from the electrode sheet defect detection mechanism to the cutting device has been driven from the cutter position and wound up by the defective product disposal device. At this time, if there is no defect in the electrode sheet of the battery from the electrode sheet defect detection mechanism to the cutting device, the processor can control the cutting device to cut the electrode sheet string of the battery of this one cell length.

[0096] In some embodiments, the defective product disposal device further includes a cutter position detection mechanism provided between the electrode sheet defect detection mechanism and the defective product disposal mechanism.

[0097] When the first distance of the updated defective electrode sheet satisfies the preset condition, before controlling the defective product disposal mechanism to remove the defective electrode sheet, Based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position of the updated defective electrode sheet based on the first distance of the updated defective electrode sheet, further including updating the first distance of the updated defective electrode sheet to a third distance that is the distance between the cutter position detection mechanism and the defective product disposal mechanism.

[0098] Controlling the defective product disposal mechanism to remove the defective electrode sheet means that In order to remove the defective electrode sheet, it may include controlling the defective product disposal mechanism to cut the defective electrode sheet at the cutter position.

[0099] In this embodiment, based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position, by updating the first distance of the updated defective electrode sheet to the third distance, the influence of the error of the updated first distance due to the delay of the scanning cycle can be avoided, and the cutting accuracy of the electrode sheet of the battery can be improved.

[0100] Note that the above third distance is the distance between the cutter position detection mechanism and the defective product disposal mechanism, and may also be the distance between the cutter position detection mechanism and the cutting device.

[0101] In the embodiment of the present application, when the cutter position of the defective electrode sheet reaches the cutting device, the processor controls the cutting device to cut the defective electrode sheet, which means that the processor controls the main drive mechanism to stop the conveyance of the defective electrode sheet when the cutter position reaches the cutting device, and when the main drive mechanism stops, the cutting device cuts the defective electrode sheet, and the defective product disposal device completes the winding of the defective electrode sheet. After the winding is completed, the cutting device and the defective product disposal device may return to their original positions.

[0102] In some embodiments, in the process of driving the drive mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the drive mechanism is coupled to the defective product disposal mechanism.

[0103] To remove the defective electrode sheet, controlling the defective product disposal mechanism to cut the defective electrode sheet at the cutter position is When it is specified that the cutter position of the defective electrode sheet has reached the defective product disposal mechanism, decouple the drive mechanism and the defective product disposal mechanism, and control the drive mechanism to stop driving the conveyance of the defective electrode sheet, and control the defective product disposal mechanism to cut the defective electrode sheet at the cutter position to remove the defective electrode sheet.

[0104] In this embodiment, in the process of the drive mechanism being coupled to the defective product disposal mechanism to convey the electrode sheet of the battery, when the cutter position of the defective electrode sheet reaches the cutting device, decouple it from the defective product disposal mechanism, and timely control the drive mechanism so that the drive mechanism stops driving the conveyance of the defective electrode sheet, and control the cutting device to cut and remove the defective electrode sheet at the cutter position, thereby realizing a controllable stop for the defective product disposal device, ensuring the continuity of the composite production of the electrode sheet of the battery, and improving the production efficiency.

[0105] Note that after the removal of the defective electrode sheet by the defective product disposal mechanism is completed, the drive mechanism and the defective product disposal mechanism can be newly coupled to ensure the conveyance of the electrode sheet of the battery.

[0106] Hereinafter, with reference to the drawings, the structural schematic diagram of the defective product disposal control device for the electrode sheet of the battery according to the embodiments of the present application will be described in detail.

[0107] FIG. 3 is a structural schematic diagram of a defective product disposal control device for an electrode sheet of a battery according to an embodiment of the present application. As shown in FIG. 3, the defective product disposal control device for the electrode sheet of the battery includes a first distance recording module 301, a second distance acquisition module 302, a first distance update module 303, and a first control module 304.

[0108] When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet during the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the first distance recording module 301 records the first distance of the defective electrode sheet, which is the distance from the defective electrode sheet to the defective product disposal mechanism.

[0109] During the process of conveying the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product disposal mechanism, the second distance acquisition module 302 acquires the second distance by which the driving mechanism drives and moves the defective electrode sheet.

[0110] The first distance update module 303 updates the first distance of the defective electrode sheet based on the second distance.

[0111] When the first distance of the updated defective electrode sheet satisfies a preset condition, the first control module 304 controls the defective product disposal mechanism to remove the defective electrode sheet.

[0112] In the embodiments of the present application, during the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, when the electrode sheet defect detection mechanism detects a defective electrode sheet, the first distance from the defective electrode sheet to the defective product disposal mechanism can be recorded. During the process of conveying the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product disposal mechanism, the second distance by which the driving mechanism drives and moves the defective electrode sheet is acquired, and the first distance is updated in real time based on the second distance. When the updated first distance satisfies a preset condition, the defective product disposal mechanism is controlled to remove the defective electrode sheet. In this way, during the process of conveying the electrode sheet of the battery by the defective product disposal device, the defective product disposal mechanism can be controlled to accurately remove the defective electrode sheet, avoiding the composite of the defective electrode sheet and the separator, and avoiding the waste of the separator.

[0113] In some embodiments, specifically, the first distance recording module 301 When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, it is used to add elements related to the defective electrode sheet to the stack of the defective product disposal device and save the first distance of the defective electrode sheet as the element value of the elements related to the defective electrode sheet in the stack.

[0114] Specifically, the first distance update module 303 is used to update the first distance of each element in the stack based on the second distance.

[0115] In this embodiment, the first distance of the detected defective electrode sheet is saved as the element value of the elements related to the defective electrode sheet in the stack. When updating, the first distance of each element in the stack is updated simultaneously based on the second distance. Since the stack follows the first-in first-out principle and can record the element values of multiple elements simultaneously, it is possible to avoid the errors of the first distances of the multiple recorded defective electrode sheets, and it is possible to update the first distances of multiple defective electrode sheets simultaneously when updating, saving computing resources.

[0116] In some embodiments, the device further includes a second control module.

[0117] The second control module is used to control the defective product disposal mechanism to cut the electrode sheet series of the battery when the element in the stack is zero or less and the length of the electrode sheet series of the battery for compounding with the separator that has passed through the defective product disposal mechanism is the preset cell length.

[0118] In this embodiment, when the element in the stack is zero or less and the length of the electrode sheet series of the battery that has passed through the defective product disposal mechanism is the preset cell length, the defective product disposal mechanism can cut the electrode sheet series of the battery and use the cut electrode sheet series of the battery for compounding with the separator, realizing not only the cutting of the defective electrode sheet but also the cutting of the normal electrode sheet.

[0119] In some embodiments, the second distance acquisition module includes a feedback value acquisition unit and a second distance determination unit.

[0120] When the Nth scanning period arrives, the feedback value acquisition unit acquires the first feedback value of the driving mechanism in the Nth scanning period, where N is an integer greater than 1, and the first feedback value is associated with the distance that the driving mechanism drives the electrode sheet of the battery to move.

[0121] The second distance determination unit determines the difference between the first feedback value and the second feedback value, which is the feedback value of the driving mechanism in the (N - 1)th scanning period, as the second distance.

[0122] In this embodiment, the processor acquires the first feedback value in the current scanning period (i.e., the Nth scanning period) and the second feedback value in the previous scanning period (i.e., the (N - 1)th scanning period) of the driving mechanism, and determines the difference between the first feedback value and the second feedback value as the second distance, thereby more accurately acquiring the second distance and making the method more flexible.

[0123] In some embodiments, the first distance recording module 301 includes a defective electrode sheet determination unit and a first distance recording unit.

[0124] When the electrode sheet defect detection mechanism detects that a defect mark is attached to the electrode sheet of the battery, the defective electrode sheet determination unit determines that the electrode sheet of the battery is a defective electrode sheet. The defect mark is a mark attached to the electrode sheet of the battery roll of the battery, and the battery electrode sheet roll is installed in the defective product disposal device.

[0125] The first distance recording unit records the first distance of the defective electrode sheet.

[0126] In the present embodiment, by attaching a defect mark to the electrode sheet of the battery in the electrode sheet roll of the battery installed in the defective product disposal device, when the defective product disposal device detects the defect mark, the electrode sheet of the battery with the defect mark attached can be removed as a defective electrode sheet, and the electrode sheet of the battery in the electrode sheet roll of the battery can be removed according to the needs of the user.

[0127] In some embodiments, the defective product disposal device further includes a cutter position detection mechanism provided between the electrode sheet defect detection mechanism and the defective product disposal mechanism.

[0128] The device may further include a second distance update module.

[0129] The second distance update module updates the first distance of the updated defective electrode sheet to a third distance, which is the distance between the cutter position detection mechanism and the defective product disposal mechanism, based on the cutter position signal generated when the cutter position detection mechanism detects the cutter of the updated defective electrode sheet based on the first distance of the updated defective electrode sheet.

[0130] Specifically, the first control module controls the defective product disposal mechanism to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet.

[0131] In the present embodiment, by updating the first distance of the updated defective electrode sheet to the third distance based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position, the influence of the error of the updated first distance due to the delay of the scanning cycle can be avoided, and the cutting accuracy of the electrode sheet of the battery can be improved.

[0132] In some embodiments, during the process of driving the driving mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the driving mechanism is coupled to the defective product disposal mechanism.

[0133] The first control module is specifically When it is identified that the cutter position of the defective electrode sheet has reached the defective product disposal mechanism, the drive mechanism and the defective product disposal mechanism are decoupled, and the drive mechanism is controlled to stop driving the conveyance of the defective electrode sheet, and the defective product disposal mechanism is controlled to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet.

[0134] In this embodiment, in the process of the drive mechanism being coupled to the defective product disposal mechanism to convey the electrode sheet of the battery, when the cutter position of the defective electrode sheet reaches the cutting device, it is decoupled from the defective product disposal mechanism, and the drive mechanism is timely controlled so that the drive mechanism stops driving the conveyance of the defective electrode sheet, and the cutting device is controlled to cut and remove the defective electrode sheet at the cutter position, thereby realizing a controllable stop for the defective product disposal device, ensuring the continuity of the combined production of the electrode sheet of the battery, and improving the production efficiency.

[0135] Other details of the defective product disposal control device for the electrode sheet of the battery according to the embodiments of the present application are similar to the defective product disposal control method for the electrode sheet of the battery described by combining the embodiments shown in FIGS. 2 and 3, and the corresponding technical effects can be achieved. For the sake of brevity of description, the description is omitted here.

[0136] FIG. 4 is a schematic diagram of the hardware structure of a defective product disposal device according to an embodiment of the present application.

[0137] The defective product disposal device may include a processor 401 and a memory 402 storing computer program instructions.

[0138] Specifically, the processor 401 can include a Central Processing Unit (CPU) or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more integrated circuits for implementing the embodiments of the present application.

[0139] The memory 402 may include a large-capacity memory for data and instructions. For example, the memory 402 can include, but is not limited to, a Hard Disk Drive (HDD), a Flexible Disk Drive, a Flash Memory, an Optical Disk, a Magneto-Optical Disk, a Magnetic Tape, or a Universal Serial Bus (USB) drive or a combination of two or more thereof. In some embodiments, the memory 402 can include a removable or non-removable (or fixed) medium, or the memory 402 may be a non-volatile solid-state memory. In some embodiments, the memory 402 may be provided inside or outside the battery device.

[0140] In some examples, the memory 402 may be a Read Only Memory (ROM). In one example, the ROM may be a masked-programmed ROM, a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), an Electrically Rewritable ROM (EAROM), a Flash Memory, or a combination of two or more of these.

[0141] Memory 402 can include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical, or other physical / tangible memory storage device. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoding software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it can operate and execute the operations described in the method according to one aspect of the present disclosure.

[0142] By reading and executing the computer program instructions stored in memory 402, processor 401 realizes the method in the embodiments shown in FIGS. 2 and 3, and realizes the corresponding technical effects achieved by executing the method / steps in the examples shown in FIGS. 2 and 3. However, for the sake of brevity of description, the description is omitted here.

[0143] In one example, the defective device to be discarded may further include a communication interface 403 and a bus 404. As shown in FIG. 6, processor 401, memory 402, and communication interface 403 are connected by bus 404 and complete communication with each other.

[0144] Communication interface 403 is mainly used to realize communication between each module, device, unit, and / or equipment in the embodiments of the present application.

[0145] Bus 404 includes hardware, software, or both, and couples components of the online data traffic charging device to each other. For example, the bus can include, but is not limited to, an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable bus or a combination of two or more of these. In a suitable situation, bus 404 can include one or more buses. Although the embodiments of the present application illustrate and show a specific bus, the present application contemplates any suitable bus or interconnect.

[0146] The defective product disposal device can execute the defective product disposal control method for the electrode sheet of the battery in the embodiment of the present application, and can implement the defective product disposal control method and its device for the electrode sheet of the battery described with reference to FIGS. 2 and 3.

[0147] In addition, in combination with the defective product disposal control method and its device for the electrode sheet of the battery in the above embodiment, the embodiment of the present application can be implemented by providing a computer storage medium. A computer program instruction is stored in the computer storage medium, and when the computer program instruction is executed by a processor, any of the batteries and their control methods in the above embodiment are realized.

[0148] Note that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of simplicity, detailed descriptions of known methods are omitted here. In the above embodiments, some specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. After those skilled in the art understand the spirit of this application, various changes, corrections, and additions can be made, or the order between steps can be changed.

[0149] The functional blocks shown in the configuration block diagrams described above can be implemented as hardware, software, firmware, or combinations thereof. When implemented in a hardware manner, it may be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, etc. When implemented in a software manner, the elements of this application are programs or code segments for performing necessary tasks. The program or code segment may be stored in a device-readable medium, or may be transmitted via a transmission medium or a communication link by a data signal carried by a carrier wave. The "device-readable medium" may include any medium capable of storing or transmitting information. Examples of device-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), flexible disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment may also be downloaded via computer networks such as the Internet and intranets.

[0150] Note that the exemplary embodiments referred to in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be executed according to the order mentioned in the embodiments, different from the order in the embodiments, or some steps can also be executed simultaneously.

[0151] As described above, each aspect of the present disclosure has been described with reference to the flowcharts and / or block diagrams of the methods, apparatuses, and computer program products according to the embodiments of the present disclosure. It should be understood that each block in the flowchart and / or block diagram, and combinations of blocks in the flowchart and / or block diagram, may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, thereby generating a machine, such that these instructions executed by the processor of the computer or other programmable data processing apparatus implement the functions / operations specified in one or more blocks of the flowchart and / or block diagram. Such a processor may be a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit, but is not limited thereto. As understood, each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, may be implemented by dedicated hardware for performing the specified functions or operations, or may be implemented by a combination of dedicated hardware and computer instructions.

[0152] Finally, it should be noted that the above embodiments are for explaining the technical solutions of the present application and are not limited thereto. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still correct the technical solutions described in the above embodiments, or perform equivalent replacements for some or all of the technical features therein. It should be understood that these corrections or replacements are all included in the scope of the claims and the specification of the present application without departing from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application. In particular, as long as there is no structural contradiction, the technical features mentioned in each embodiment can be arbitrarily combined. The present application is not limited to the specific embodiments disclosed above, but includes all technical solutions included in the scope of the claims.

Claims

1. A method for controlling the rejection of defective battery electrode sheets, which is applied to a defective product rejection device including a drive mechanism, an electrode sheet defect detection mechanism, and a defective product rejection mechanism, comprising: In the process that the drive mechanism drives the electrode sheet of the battery to be conveyed to the defective product rejection mechanism, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording a first distance of the defective electrode sheet, which is the distance from the defective electrode sheet to the defective product rejection mechanism; In the process that the defective electrode sheet is conveyed from the electrode sheet defect detection mechanism to the defective product rejection mechanism, obtaining a second distance that the drive mechanism drives the defective electrode sheet to move; Updating the first distance of the defective electrode sheet based on the second distance; When the first distance of the updated defective electrode sheet meets a preset condition, controlling the defective product rejection mechanism to remove the defective electrode sheet; including When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording the first distance of the defective electrode sheet means When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, adding elements related to the defective electrode sheet to the stack of the defective product rejection device, and storing the first distance of the defective electrode sheet as the element value of the elements related to the defective electrode sheet in the stack; Updating the first distance of the defective electrode sheet based on the second distance means Updating the first distance of each element in the stack based on the second distance; When the element in the stack is zero or less and the length of the electrode sheet series of the battery for combining with the separator is the preset cell length after passing through the defective product rejection mechanism, controlling the defective product rejection mechanism to cut the electrode sheet series of the battery; A method for controlling the rejection of defective battery electrode sheets.

2. Obtaining the second distance that the drive mechanism drives the defective electrode sheet to move means When the Nth scanning period arrives, obtain the first feedback value of the drive mechanism in the Nth scanning period, where N is an integer greater than 1, and the first feedback value is related to the distance that the drive mechanism drives and moves the electrode sheet of the battery, and identifying the difference between the first feedback value and the second feedback value, which is the feedback value of the drive mechanism in the (N - 1)th scanning period, as the second distance, the method for controlling the rejection of defective electrode sheets of a battery according to claim 1.

3. When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, recording the first distance of the defective electrode sheet is When the electrode sheet defect detection mechanism detects that a defect mark is attached to the electrode sheet of the battery, identifying that the electrode sheet of the battery is a defective electrode sheet, the defect mark is a mark attached to the electrode sheet of the battery of the electrode sheet roll of the battery, and the electrode sheet roll of the battery is installed in the defective product rejection device, and recording the first distance of the defective electrode sheet, the method for controlling the rejection of defective electrode sheets of a battery according to claim 1.

4. The defective product rejection device further includes a cutter position detection mechanism provided between the electrode sheet defect detection mechanism and the defective product rejection mechanism, When the first distance of the updated defective electrode sheet satisfies a preset condition, before controlling the defective product rejection mechanism to remove the defective electrode sheet, further including updating the first distance of the updated defective electrode sheet to a third distance, which is the distance between the cutter position detection mechanism and the defective product rejection mechanism, based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position of the defective electrode sheet based on the first distance of the updated defective electrode sheet, Controlling the defective product rejection mechanism to remove the defective electrode sheet is Controlling the defective product rejection mechanism to cut off the defective electrode sheet at the cutter position to remove the defective electrode sheet, the method for controlling the rejection of defective electrode sheets of a battery according to claim 1.

5. In the process of driving the drive mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, the drive mechanism is coupled to the defective product disposal mechanism, In order to remove the defective electrode sheet, controlling the defective product disposal mechanism to cut the defective electrode sheet at the cutter position is, When it is specified that the cutter position of the defective electrode sheet has reached the defective product disposal mechanism, decoupling the drive mechanism and the defective product disposal mechanism, controlling the drive mechanism to stop driving the conveyance of the defective electrode sheet, and controlling the defective product disposal mechanism to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet, The defective product disposal control method for the electrode sheet of the battery according to claim 4.

6. A defective product disposal control device for an electrode sheet of a battery applied to a defective product disposal device including a drive mechanism, an electrode sheet defect detection mechanism, and a defective product disposal mechanism, In the process of driving the drive mechanism to convey the electrode sheet of the battery to the defective product disposal mechanism, when the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, a first distance recording module for recording a first distance of the defective electrode sheet, which is the distance from the defective electrode sheet to the defective product disposal mechanism, A second distance acquisition module for acquiring a second distance by which the drive mechanism drives and moves the defective electrode sheet in the process of conveying the defective electrode sheet from the electrode sheet defect detection mechanism to the defective product disposal mechanism, A first distance update module for updating the first distance of the defective electrode sheet based on the second distance, A first control module for controlling the defective product disposal mechanism to remove the defective electrode sheet when the first distance of the updated defective electrode sheet satisfies a preset condition, Including, The first distance recording module is, When the electrode sheet defect detection mechanism detects that the electrode sheet of the battery is a defective electrode sheet, adding elements related to the defective electrode sheet to the stack of the defective product disposal device, and storing the first distance of the defective electrode sheet in the stack as the element value of the elements related to the defective electrode sheet, The first distance update module is, Based on the second distance, updating the first distance of each element in the stack, When the element in the stack is zero or less and the length of the electrode sheet series of the battery for combining with the separator, which has passed through the defective product disposal mechanism, is a preset cell length, a second control module for controlling the defective product disposal mechanism to cut the electrode sheet series of the battery is further included. Defective product disposal control device for the electrode sheet of a battery.

7. The second distance acquisition module When the Nth scanning cycle arrives, obtains the first feedback value of the drive mechanism in the Nth scanning cycle, where N is an integer greater than 1, and the first feedback value is a feedback value acquisition unit used to associate the distance that the drive mechanism drives and moves the electrode sheet of the battery, and A second distance specifying unit for specifying the difference between the first feedback value and the second feedback value, which is the feedback value of the drive mechanism in the (N - 1)th scanning cycle, as the second distance. The defective product disposal control device for the electrode sheet of a battery according to claim 6, including the above.

8. The first distance recording module When the electrode sheet defect detection mechanism detects that a defect mark is attached to the electrode sheet of the battery, it specifies that the electrode sheet of the battery is a defective electrode sheet. The defect mark is a mark attached to the electrode sheet of the battery of the electrode sheet roll of the battery, and a defective electrode sheet specifying unit used for providing the electrode sheet roll of the battery to the defective product disposal device, and A first distance recording unit for recording the first distance of the defective electrode sheet. The defective product disposal control device for the electrode sheet of a battery according to claim 6, including the above.

9. The defective product disposal device further includes a cutter position detection mechanism provided between the electrode sheet defect detection mechanism and the defective product disposal mechanism. The device Based on the cutter position signal generated when the cutter position detection mechanism detects the cutter position of the updated defective electrode sheet based on the first distance of the updated defective electrode sheet, a second distance update module for updating the first distance of the updated defective electrode sheet to the third distance, which is the distance between the cutter position detection mechanism and the defective product disposal mechanism, is further included. The first control module The defective product disposal control device for the electrode sheet of a battery according to claim 6, which is used to control the defective product disposal mechanism to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet.

10. In the process of the drive mechanism driving to convey the electrode sheet of the battery to the defective product disposal mechanism, the drive mechanism is coupled to the defective product disposal mechanism. The first control module is When it is determined that the cutter position of the defective electrode sheet has reached the defective product disposal mechanism, the first control module decouples the drive mechanism from the defective product disposal mechanism, controls the drive mechanism to stop driving the conveyance of the defective electrode sheet, and controls the defective product disposal mechanism to cut the defective electrode sheet at the cutter position in order to remove the defective electrode sheet. The defective product disposal control device for the electrode sheet of a battery according to claim 9.

11. Including a processor, a memory, and a program or instruction stored in the memory and executable by the processor, when the program or instruction is executed by the processor, the steps of the defective product disposal control method for the electrode sheet of a battery according to any one of claims 1 to 5 are realized. A defective product disposal device for the electrode sheet of a battery, characterized in that.

12. A readable storage medium, When executed by a processor, a program or instruction for realizing the steps of the defective product disposal control method for the electrode sheet of a battery according to any one of claims 1 to 5 is stored. A readable storage medium, characterized in that.

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