Battery electrode core manufacturing apparatus, manufacturing method, battery electrode core, battery, and electric power device

Abstract

This application relates to the field of battery manufacturing, and more particularly to a battery electrode core manufacturing equipment, manufacturing method, battery electrode core, battery, and power generation device. The battery electrode core manufacturing equipment includes a cutting device and a compression molding device; the cutting device is used to cut the electrode core stacking strip to form an electrode core stacking unit on one side of the cutting device, and to block the electrode core stacking strip on the other side of the cutting device; the compression molding device is used to compress the electrode core stacking unit to form a set of battery electrode cores. This application improves the electrode core stacking speed and increases cell manufacturing efficiency by simultaneously performing continuous cutting and compounding processes on the electrode core stacking strip.

Description

Technical Field

[0001] This application relates to the field of vehicle display technology, and in particular to a battery electrode core manufacturing equipment, manufacturing method, battery electrode core, battery, and power equipment. Background Technology

[0002] With the development of new energy vehicles, new energy machinery, and other new energy equipment, the application of batteries is becoming increasingly widespread. In the field of lithium batteries, the electrode assembly of battery cells is typically manufactured using a stacking process. However, current technology usually involves stacking the negative electrode first, then covering it with a separator, then stacking the positive electrode, and finally covering it with a separator. This stacking method uses a single electrode sheet or a single separator as the stacking unit, resulting in slow manufacturing speed and low cell production efficiency. Summary of the Invention

[0003] This application provides a method, equipment, battery electrode core, battery, and power equipment for manufacturing battery electrode cores. By cutting and folding the first and second electrode sheets of a electrode core stacking strip to form a battery electrode core, the electrode core stacking speed can be increased and the cell manufacturing efficiency can be improved.

[0004] To achieve the above objectives, according to a first aspect of this application, a battery core manufacturing apparatus is provided, the apparatus comprising:

[0005] Cutting device and compression molding device;

[0006] The cutting device is used to cut the core lamination strip to form a core lamination unit on one side of the cutting device and to block the core lamination strip on the other side of the cutting device.

[0007] The compression molding device is used to compress the electrode core stack unit to form a set of battery electrode cores.

[0008] In some embodiments, the cutting device includes a first cutting clamp and a second cutting clamp, the first cutting clamp and the second cutting clamp being disposed opposite to each other;

[0009] The first cutting clamp and the second cutting clamp are used to hold the electrode core stacked strip.

[0010] In some embodiments, the first cutting clamp includes a first clamp and a second clamp, and the second cutting clamp includes a third clamp and a fourth clamp;

[0011] The first clamp, the third clamp, the fourth clamp, and the second clamp are arranged sequentially at intervals along the first direction.

[0012] In some embodiments, the cutting fixture further includes a cutting mechanism disposed on a first side of the core stacked strip and located between the third fixture and the fourth fixture;

[0013] The cutting mechanism is used to cut the core lamination strip from the connection point to form the core lamination unit;

[0014] The electrode core stacked strip includes an electrode core diaphragm, a first electrode sheet, and a second electrode sheet. The first electrode sheet is disposed on one side of the electrode core diaphragm, and the second electrode sheet is disposed on the other side of the electrode core diaphragm. The first electrode sheet and the second electrode sheet are arranged alternately in sequence, and a blank segment is provided between the first electrode sheet and the second electrode sheet. The connection point is located in the blank segment.

[0015] In some embodiments, the battery core manufacturing equipment includes: a testing device disposed between the third clamp and the fourth clamp;

[0016] The detection device is used to identify and mark the connection points on the electrode core lamination strip.

[0017] In some embodiments, the compression molding apparatus includes: a molding device and a position adjusting device; the molding device is located on the same side of the fourth clamp and is connected to the fourth clamp;

[0018] The position adjustment device is disposed at the end along the first direction;

[0019] The forming device is used to drive the fourth clamp to press the electrode core stack unit toward the side closer to the position adjustment device, and / or the position adjustment device is used to press the electrode core stack unit toward the side closer to the forming device to form a set of battery electrodes.

[0020] In some embodiments, the battery core manufacturing equipment includes a feeding device for removing the battery core.

[0021] In some embodiments, the battery electrode core manufacturing equipment includes: a grooving device for supporting and limiting the electrode core stacking strip, the electrode core stacking unit, and the battery electrode core.

[0022] In some embodiments, the chute device includes: a first chute device and a second chute device, wherein the first chute device is disposed above the second chute device;

[0023] The first sliding groove device is used to limit the electrode core stacking strip, the electrode core stacking unit, and the battery electrode core; the second sliding groove device is used to support the electrode core stacking strip, the electrode core stacking unit, and the battery electrode core.

[0024] In some embodiments, the battery core manufacturing equipment includes: a first pre-folding device and a second pre-folding device;

[0025] The first pre-folding device is disposed on the first side of the electrode core stacked strip, and the second pre-folding device is disposed on the second side. Both the first and second pre-folding devices are provided with a plurality of folding pieces, which are used to pre-fold the electrode core stacked strip.

[0026] In some embodiments, the plurality of folded pieces are evenly distributed at equal intervals.

[0027] In some embodiments, the battery core manufacturing equipment includes a conveying device and a pressure roller device, the conveying device and the pressure roller device being used to drive the core stack material towards the cutting device.

[0028] According to a second aspect of this application, a method for manufacturing a battery electrode core is provided, the method comprising:

[0029] The electrode core stack material strip is cut by a cutting device to form an electrode core stack unit on one side of the cutting device, and the electrode core stack material strip is blocked on the other side of the cutting device.

[0030] A set of battery electrodes is formed by compressing the electrode stack unit using a compression molding device.

[0031] In some embodiments, the step of cutting the electrode core lamination strip with a cutting device to form an electrode core lamination unit on one side of the cutting device and blocking the electrode core lamination strip on the other side of the cutting device includes:

[0032] The electrode core stack material strip is clamped by a first clamp, a second clamp, a third clamp, and a fourth clamp, and the electrode core stack material strip is cut by a cutting mechanism to form the electrode core stack unit on one side of the cutting mechanism, and the electrode core stack material strip is blocked on the other side of the cutting mechanism.

[0033] In some embodiments, the core stacked strip includes a core diaphragm, a first electrode sheet, and a second electrode sheet. The first electrode sheet is disposed on one side of the core diaphragm, and the second electrode sheet is disposed on the other side of the core diaphragm. The first electrode sheet and the second electrode sheet are arranged alternately in sequence. A blank segment is provided between the first electrode sheet and the second electrode sheet, and the blank segment is provided with a connection point.

[0034] The cutting of the electrode core laminate strip by the cutting mechanism includes:

[0035] The core lamination strip is cut from the connection point by the cutting mechanism to form the core lamination unit.

[0036] In some embodiments, before cutting the core lamination strip from the connection point by the cutting mechanism to form the core lamination unit, the following steps are included:

[0037] The connection points on the electrode core stacked strip are identified by a detection device.

[0038] In some embodiments, after the cutting mechanism cuts the core lamination strip from the connection point to form the core lamination unit, the process includes:

[0039] The first and third clamps continue to hold the electrode core stacked strip, while the second and fourth clamps retract from holding the electrode core stacked strip.

[0040] In some embodiments, clamping the electrode core laminate strip using the first clamp, second clamp, third clamp, and fourth clamp includes:

[0041] The first clamp and the second clamp move toward the electrode core stacked material strip, while the third clamp and the fourth clamp move toward the electrode core stacked material strip to jointly clamp the electrode core stacked material strip.

[0042] In some embodiments, the compression molding process of the electrode core stack unit to form a set of battery electrode cores includes:

[0043] The forming device drives the fourth clamp to press the electrode core stack unit toward the side closer to the position adjustment device, and / or the position adjustment device presses the electrode core stack unit toward the side closer to the forming device to form a set of battery electrode cores.

[0044] In some embodiments, before the compression molding apparatus is used to compress the electrode stack unit to form a set of battery electrodes, the following steps are included:

[0045] The first clamp and the third clamp continue to hold the electrode core stacked strip, and the second clamp and the fourth clamp retract from holding the electrode core stacked strip.

[0046] In some embodiments, after the electrode core stacking unit is compressed by a compression molding apparatus to form a set of battery electrode cores, the process includes:

[0047] The battery core is removed using a feeding device.

[0048] In some embodiments, the method includes: the forming device driving the fourth clamp out of the extrusion working state, and the position adjusting device moving toward the pole core stacked material strip until the position adjusting device abuts against the pole core stacked material strip.

[0049] In some embodiments, after the position adjustment device abuts against the electrode core stack strip, the first clamp and the third clamp exit the state of clamping the electrode core stack strip.

[0050] In some embodiments, the method includes cutting the electrode core stack strip with a cutting device to form an electrode core stack unit on one side of the cutting device and blocking the electrode core stack strip on the other side of the cutting device:

[0051] The electrode core laminate strip is pre-folded using a first pre-folding device and a second pre-folding device.

[0052] In some embodiments, before pre-folding the electrode core laminate strip using the first pre-folding device and the second pre-folding device, the method includes:

[0053] The core sheet material is conveyed to one side of the first pre-folding device and the second pre-folding device by a conveying device and a pressure roller device.

[0054] According to a third aspect of this application, a battery electrode core is provided, the battery electrode core comprising:

[0055] A multilayer electrode, wherein the multilayer electrode comprises at least one first electrode and at least one second electrode;

[0056] The first electrode and the second electrode are stacked at intervals.

[0057] In some embodiments, the battery core includes a core separator, the core separator being located between the first electrode and the second electrode, and at least one end of adjacent first and second electrodes being connected through the core separator.

[0058] In some embodiments, the first electrode is a positive electrode or a negative electrode.

[0059] According to a fourth aspect of this application, a battery is provided, the battery comprising the battery core provided in the third aspect of this application.

[0060] According to a fifth aspect of this application, an electrical power device is provided, the electrical power device including the battery provided in the fourth aspect of this application.

[0061] This application uses a cutting device to cut the electrode core stacking strip to form an electrode core stacking unit on one side of the cutting device and to block the electrode core stacking strip on the other side of the cutting device. Then, the electrode core stacking unit is compressed by a compression molding device. By simultaneously performing continuous cutting and compounding processes on the electrode core stacking strip, a set of battery electrode cores can be produced, which can improve the electrode core stacking speed and improve the cell manufacturing efficiency. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0063] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0064] Figure 1 This is a schematic diagram of a continuous pre-folding process of a core lamination strip provided in an exemplary embodiment of this application;

[0065] Figure 2 This is a schematic diagram of the pre-folding end of a core lamination strip provided in an exemplary embodiment of this application;

[0066] Figure 3 This is a schematic diagram of a cutting fixture holding a core stacked strip according to an exemplary embodiment of this application;

[0067] Figure 4 This is a schematic diagram of a cutting device cutting a strip of electrode core laminations according to an exemplary embodiment of this application;

[0068] Figure 5 This is a schematic diagram of a cutting fixture for preliminary compression of a core lamination unit provided in an exemplary embodiment of this application;

[0069] Figure 6 This is a schematic diagram of a feeding device for removing battery cores provided in an exemplary embodiment of this application;

[0070] Figure 7 This is a schematic diagram of a feeding device removing the battery core in an exemplary embodiment of this application;

[0071] Figure 8 This is a schematic diagram of a battery core structure provided in an exemplary embodiment of this application;

[0072] Figure 9This is a schematic diagram of a cutting mechanism structure provided in an exemplary embodiment of this application.

[0073] Figure label:

[0074] Conveying device: 1; Pressure roller device: 2; First pre-folding device: 4; Second pre-folding device: 5; Sliding chute device: 300; First sliding chute device: 6; Second sliding chute device: 14; Electrode core stacking strip: 3; Electrode core separator: 30; First electrode sheet: 31; Second electrode sheet: 32; Cutting device: 100; First cutting clamp: 110; First clamp: 9; Second clamp: 10; Second cutting clamp: 120; Third clamp: 7; Fourth clamp: 12; Cutting mechanism: 8; Compression molding device: 200; Molding device: 13; Position adjustment device: 15; Feeding device: 11; Detection device: 20; Battery cell: 19; Electrode core stacking unit: 21. Detailed Implementation

[0075] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0077] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0078] In the description of the embodiments of this application, technical terms such as "one side" and "one end" are only used to distinguish different directions and orientations, and should not be construed as indicating or implying relative importance or implicitly indicating the direction, orientation, or specific order or primary and secondary relationship of the indicated technical features.

[0079] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0080] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0081] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0082] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection through a network. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0083] The following description, with reference to the accompanying drawings, describes battery core manufacturing equipment, manufacturing method, battery core, battery, and power equipment according to embodiments of this application.

[0084] In one embodiment of this application, see Figures 1 to 7 A battery core manufacturing apparatus is provided, wherein the battery core manufacturing apparatus includes:

[0085] Cutting device 100 and compression molding device 200;

[0086] The cutting device 100 is used to cut the core stack material strip 3 to form a core stack unit 21 on one side of the cutting device 100, and to block the core stack material strip 3 on the other side of the cutting device 100.

[0087] The compression molding device 200 is used to compress the electrode core stacking unit 21 to form a set of battery electrode cores 19.

[0088] In the manufacturing process of battery core 19, the entire core stack material strip 3 is usually made and then sent to other devices. These devices then perform a series of operations such as folding, cutting, and compressing the entire core stack material strip 3. The folded part of the core stack material strip 3 is cut to form a core stack unit 21, and the core stack unit 21 is compressed to make a set of battery-grade cores 19.

[0089] Specifically, the battery electrode manufacturing equipment cuts the entire electrode stack material strip 3 using the cutting device 100. After the cutting device 100 cuts the electrode stack material strip 3, an electrode stack unit 21 is formed on one side of the cutting device 100. Then, the cutting device 100 continues to block the remaining electrode stack material strip 3 on the other side. The electrode stack unit 21 is then compressed by the compression molding device 200 to form a set of battery electrodes 19.

[0090] In some embodiments, the electrode core stacking strip 3 provided in this application includes an electrode core separator 30, a first electrode 31, and a second electrode 32. The first electrode 31 is disposed on one side of the electrode core separator 30, and the second electrode 32 is disposed on the other side of the electrode core separator 30. The first electrode 31 and the second electrode 32 are arranged alternately, with a blank segment between them, and a connection point is provided in the blank segment. The deformation length of the single-layer electrode core separator 30 with this structure is controllable, and the deformation amount of the electrode core separator 30 is almost consistent each time it is folded. The uniformity of the final battery electrode core 19 is better than that of the prior art.

[0091] This application uses a cutting device 100 to cut the electrode core stacking strip 3 to form an electrode core stacking unit 21 on one side of the cutting device 100, and blocks the electrode core stacking strip 3 on the other side of the cutting device 100. Then, the electrode core stacking unit 21 is compressed by a compression molding device 200. By simultaneously performing continuous cutting and compounding processes on the electrode core stacking strip 3, a set of battery electrode cores 19 can be produced, which can improve the electrode core stacking speed and improve the cell manufacturing efficiency.

[0092] In some embodiments, the battery core manufacturing equipment further includes a conveying device 1 and a pressure roller device 2, the conveying device 1 and the pressure roller device 2 being used to drive the core stacked strip 3 toward the cutting device 100.

[0093] First, the electrode core laminate material strip 3 needs to be driven in the same direction by the conveying device 1 and the pressure roller device 2. Usually, the conveying device 1 and the pressure roller device 2 work together. The electrode core laminate material strip 3 is placed on the conveying device 1 and conveyed in the conveying direction. The electrode core laminate material strip 3 passes through the pressure roller device 2 and is smoothly conveyed to the first direction in a fixed direction. The first direction is the transmission direction of the conveying device 1.

[0094] Optionally, the conveying device 1 can be any one of the three major categories of mechanical transmission, fluid transmission and electrical transmission, and can be one or a combination of various types such as gear transmission, belt transmission, chain transmission, worm gear transmission, planetary gear transmission, etc. This application does not impose any restrictions.

[0095] In some embodiments, the battery core manufacturing equipment includes:

[0096] First pre-folding device 4 and second pre-folding device 5;

[0097] The first pre-folding device 4 is disposed on the first side of the electrode core stacked strip 3 and on the second side. Both the first pre-folding device 4 and the second pre-folding device 5 are provided with a plurality of folding pieces, which are used to pre-fold the electrode core stacked strip 3.

[0098] according to Figure 1 The diagram shown is a schematic of the continuous pre-folding process of a core lamination strip 3 provided in this application:

[0099] The first pre-folding device 4 and the second pre-folding device 5 are typically located on one side of the transmission direction of the conveying device 1 and the pressure roller device 2. The conveying device 1 and the pressure roller device 2 transmit the core stacked material strip 3 to the first pre-folding device 4 and the second pre-folding device 5. The first pre-folding device 4 and the second pre-folding device 5 are arranged opposite to each other, with the first pre-folding device 4 located on the first side of the core stacked material strip 3 and the second pre-folding device 5 located on the second side, as shown in the figure. The first side and the second side are located on opposite sides of the core stacked material strip 3. The first side and the second side are arranged opposite to each other, and the first pre-folding device 4 and the second pre-folding device 5 move in opposite directions. For example, if the first pre-folding device 4 moves counterclockwise, the second pre-folding device 5 moves clockwise, and vice versa. The purpose is to convey the core stacked material strip 3 in the transmission direction.

[0100] Both the first pre-folding device 4 and the second pre-folding device 5 are equipped with multiple folding pieces. These folding pieces are serrated on both devices. As the electrode core stack material strip 3 passes through the first and second pre-folding devices 4 and 5, the devices pre-fold the strip 3 using the folding pieces, forming a wavy shape. Simultaneously, the wavy electrode core stack material strip 3 continues to be conveyed in the conveying direction. Figure 2 The diagram shown is a schematic of a cutting fixture for holding the core stacked strip 3 provided in this application.

[0101] Optionally, the transmission method of the first pre-folding device 4 and the second pre-folding device 5 can be one or a combination of various types such as gear transmission, belt transmission, chain transmission, worm gear transmission, planetary gear transmission, etc., and this application does not impose any restrictions.

[0102] In some embodiments, the plurality of folded pieces are evenly distributed at equal intervals.

[0103] Normally, the multiple folding pieces on the first pre-folding device 4 and the second pre-folding device 5 are evenly spaced. The spacing between the multiple folding pieces can be adjusted. The distance between two folding pieces is usually equal to the distance between the connection points of the first electrode 31 and the second electrode 32 of the electrode core stacked material strip 3. At the same time, the multiple folding pieces on the first pre-folding device 4 and the multiple folding pieces on the second pre-folding device 5 are staggered to facilitate the first pre-folding device 4 and the second pre-folding device 5 to pre-fold each adjacent electrode of the electrode core stacked material strip 3 from the connection point, so as to form a continuous wavy electrode core stacked material strip 3.

[0104] The conveying device 1, the pressure roller device 2, the first pre-folding device 4, and the second pre-folding device 5 continue to convey the pre-folded core stack material strip 3 in the conveying direction to the cutting fixture for clamping and cutting to form the core stack unit 21.

[0105] In some embodiments, the cutting device 100 includes a first cutting clamp 110 and a second cutting clamp 120, wherein the first cutting clamp 110 and the second cutting clamp 120 are disposed opposite to each other;

[0106] The first cutting clamp 110 and the second cutting clamp 120 are used to hold the core stacked strip 3.

[0107] like Figure 3 The diagram shown is a schematic of a cutting fixture for holding the core stacked strip 3 according to this application:

[0108] The cutting device 100 includes a first cutting clamp 110 and a second cutting clamp 120. After the electrode core laminate material strip 3 is conveyed to the first cutting clamp 110 and the second cutting clamp 120, the first cutting clamp 110 and the second cutting clamp 120 clamp the electrode core laminate material strip 3. Normally, the first cutting clamp 110 and the second cutting clamp 120 are arranged opposite to each other: that is, the first cutting clamp 110 is on one side of the electrode core laminate material strip 3, and the second cutting clamp 120 is on the other side of the electrode core laminate material strip 3. The first cutting clamp 110 can move towards the second cutting clamp 120, and at the same time, the second cutting clamp 120 can move towards the first cutting clamp.

[0109] After the core stacked material strip 3 is conveyed between the first cutting clamp 110 and the second cutting clamp 120, the core stacked material strip 3 needs to be clamped. The first cutting clamp 110 and the second cutting clamp 120 move simultaneously in the direction of the core stacked material strip 3 to clamp the core stacked material strip 3.

[0110] In some embodiments, the first cutting clamp 110 includes a first clamp 9 and a second clamp 10, and the second cutting clamp 120 includes a third clamp 7 and a fourth clamp 12;

[0111] The first clamp 9, the third clamp 7, the fourth clamp 12 and the second clamp 10 are arranged at intervals along the first direction.

[0112] Optionally, the first cutting clamp 110 includes a first clamp 9 and a second clamp 10, and the second cutting clamp 120 includes a third clamp 7 and a fourth clamp 12.

[0113] The first clamp 9, the third clamp 7, the fourth clamp 12, and the second clamp 10 are arranged sequentially at intervals along the first direction. The interval is usually smaller than the distance between the first electrode 31 and the second electrode 32 in the electrode core stacked strip 3, so that the electrode core stacked strip 3 can be clamped by the first clamp 9, the third clamp 7, the fourth clamp 12, and the second clamp 10 to form a V-shaped electrode core stacked strip 3, which is convenient for the compression molding device 200 to compress it.

[0114] In some embodiments, the cutting fixture further includes a cutting mechanism 8, which is disposed on the first side of the core stacked strip 3 and is located between the third fixture 7 and the fourth fixture 12.

[0115] The cutting mechanism 8 is used to cut the core lamination strip 3 at the connection point to form the core lamination unit 21.

[0116] like Figure 4 The diagram shows a cutting device 100 provided in this application cutting the electrode core stacked strip 3: After the cutting mechanism 8 clamps and folds the electrode core stacked strip 3 to form a V-shaped electrode core stacked strip 3, the cutting mechanism 8 needs to cut the electrode core stacked strip 3 from the connection point to form the electrode core stacked unit 21.

[0117] Optionally, the cutting mechanism 8 is located between the third clamp 7 and the fourth clamp 12 to facilitate the cutting of the core stacked strip 3, which includes multiple first electrode sheets 31 and second electrode sheets 32.

[0118] Normally, the cutting mechanism 8 is located on the first side of the electrode core stacked strip 3. Since there are no other devices blocking the first side, it is easier for the cutting mechanism 8 to cut the electrode core stacked strip 3.

[0119] like Figure 9 The diagram shown is a structural schematic of a cutting mechanism 8 provided in this application. The cutting mechanism 8 can be a structure with an oblique single blade or a structure with a straight single blade. This structure can ensure that the core diaphragm 30 can be cut simultaneously when moving along the length direction of the core stacked material strip 3.

[0120] In some embodiments, the battery core manufacturing equipment includes a detection device 20 disposed between the third clamp 7 and the fourth clamp 12; the detection device 20 is used to identify and mark the connection points on the core stack strip 3.

[0121] After the cutting mechanism 8 clamps and folds the core stacked strip 3 to form a V-shaped core stacked strip 3, before the cutting mechanism 8 cuts the core stacked strip 3, the detection device 20 needs to identify and mark the connection points on the core stacked strip 3. Then the cutting mechanism 8 can adjust the cutting position so that the cutting mechanism 8 can accurately cut from the connection points.

[0122] Optionally, the detection device 20 is usually set between the third clamp 7 and the fourth clamp 12. It can be set above, below, or on the side of the core stacked strip 3, as long as it can identify the cut connection of the core stacked strip 3.

[0123] In order to improve the detection accuracy of the detection device 20 and to cooperate well with the cutting mechanism 8, the detection device 20 of this application is usually set directly above the cutting mechanism 8. After the cutting mechanism 8 performs the cutting operation, the cutting mechanism 8 can be translated in space. When the detection device 20 detects the connection, the cutting mechanism 8 moves directly below the detection device 20 and cuts the core stacked strip 3 from the connection.

[0124] In some embodiments, the compression molding apparatus 200 includes a molding device 13 and a position adjustment device 15;

[0125] The forming device 13 is located on the same side of the fourth clamp 12 and is connected to the fourth clamp 12;

[0126] The position adjustment device 15 is disposed at the end along the first direction;

[0127] The forming device 13 is used to drive the fourth clamp 12 to press the electrode core stacking unit 21 toward the side closer to the position adjustment device 15, and / or the position adjustment device 15 is used to press the electrode core stacking unit 21 toward the side closer to the forming device 13 to form a set of battery electrode cores 19.

[0128] After the cutting mechanism 8 cuts the electrode core stacking strip 3 from the connection point to form the electrode core stacking unit 21, the electrode core stacking unit 21 needs to be compressed to make the battery electrode core 19.

[0129] Optional, such as Figure 5 The diagram shown is a schematic of a preliminary compression unit 21 for the electrode core stacking of a cutting fixture provided in this application:

[0130] The compression molding apparatus 200 includes a molding device 13 and a position adjusting device 15. The molding device 13 is located on the same side as the fourth clamp 12 and is connected to the fourth clamp 12. The position adjusting device 15 is located at the end of the first direction, i.e., the first end in the figure. The position adjusting device 15 is arranged parallel to the conveying device 1. The relative position of the position adjusting device 15 can be moved, usually moving in the opposite direction to the first direction. On the one hand, it can compress the core stack unit 21, and on the other hand, it needs to abut against and prevent the core stack material strip 3 from continuing to move in the conveying direction.

[0131] After the cutting mechanism 8 cuts the core stacked strip 3 at the connection point to form the core stacked unit 21, the first clamp 9 and the third clamp 7 remain fixed and continue to hold the core stacked strip 3, blocking the core stacked strip 3 in the opposite direction of the conveying direction. At this time, the second clamp 10 and the fourth clamp 12 exit the clamping position, and the fourth clamp 12 pushes towards the middle position of the core stacked strip 3, which can abut against the electrode of the core stacked unit 21, so that the blank section of the core diaphragm 30 is attached to the electrode of the core stacked unit 21. Then, the forming device 13 drives the fourth clamp 12 to move towards one side of the position adjustment device 15, and / or the position adjustment device 15 moves towards one side of the forming device 13, and after abutting against the electrode core stacking unit 21, it continues to move towards one side of the position adjustment device 15; finally, the forming device 13 and the position adjustment device 15 apply compressive forces in opposite directions to the electrode core stacking unit 21, compressing the electrode core stacking unit 21 to a certain thickness, thereby forming the battery electrode core 19.

[0132] In some embodiments, the battery core manufacturing equipment includes a feeding device 11 for removing the battery core 19.

[0133] like Figure 6 The diagram shown is a schematic of a feeding device 11 for removing battery electrode core 19 according to this application:

[0134] After the process of making a set of battery electrode cores 19 is completed, the unloading device 11 clamps the battery electrode cores 19 and takes out the completed battery electrode cores 19.

[0135] like Figure 7 The diagram shown is a schematic representation of the process by which the feeding device 11 of this application removes the battery electrode core 19.

[0136] After the unloading device 11 removes the completed battery electrode core 19, the forming device 13 and the fourth clamp 12 retract, and the position adjustment device 15 continues to move in the opposite direction of the transmission direction. At the same time, the first clamp 9 and the third clamp 7 retract from the clamping state until the position adjustment device 15 comes into contact with the electrode core stacking strip 3. After that, the position adjustment device 15 moves together with the electrode core stacking strip 3 in the transmission direction. Then, the battery electrode core manufacturing equipment performs a new round of clamping, cutting, and compression operations on the electrode core stacking strip 3 through various components, repeating the manufacturing process of the battery electrode core 19.

[0137] In some embodiments, the battery core manufacturing equipment includes:

[0138] The sliding groove device 300 is used to support and limit the electrode core stacking strip 3, the electrode core stacking unit 21 and the battery electrode core 19.

[0139] Optionally, the battery electrode core manufacturing equipment also includes a grooving device 300, which is disposed on one side of the conveying direction of the first pre-folding device 4 and the second pre-folding device 5, and is arranged parallel to the conveying device 1. Typically, the grooving device 300 is disposed between the first cutting fixture 110 and the second cutting fixture 120, and is used to support and limit the electrode core stacking strip 3, the electrode core stacking unit 21, and the battery electrode core 19.

[0140] Optionally, the chute device 300 can be matched with a clockwise conveying device 1 to enhance the smoothness of the pre-folded core stacked material strip 3 being conveyed on the chute device 300. It can also be matched with linear vibration characteristics in the conveying direction or opposite to the conveying direction to enhance the smoothness of the pre-folded core stacked material strip 3 being conveyed on the chute device 300.

[0141] In some embodiments, the chute device 300 includes:

[0142] A first chute device 6 and a second chute device 14, wherein the first chute device 6 is disposed directly above the second chute device 14;

[0143] The first sliding groove device 6 is used to limit the electrode core stacking strip 3, the electrode core stacking unit 21 and the battery electrode core 19; the second sliding groove device 14 is used to support the electrode core stacking strip 3, the electrode core stacking unit 21 and the battery electrode core 19.

[0144] Optionally, the sliding device 300 includes a first sliding device 6 and a second sliding device 14. The first sliding device 6 is located directly above the second sliding device 14. The first sliding device 6 has a hollow groove for limiting the electrode core stacking strip 3, the electrode core stacking unit 21, and the battery electrode core 19. The electrode core stacking strip 3, the electrode core stacking unit 21, and the battery electrode core 19 are locked in the first sliding device 6 and can only move in the transmission direction. The second sliding device 14 is used to support the electrode core stacking strip 3, the electrode core stacking unit 21, and the battery electrode core 19, so that the electrode core stacking strip 3, the electrode core stacking unit 21, and the battery electrode core 19 can move on the second sliding device 14.

[0145] Optionally, the first slide rail device 6 can be partially connected and installed with the second slide rail device 14, or it can be fixed independently and work together. This application does not impose any restrictions on this.

[0146] In another embodiment of this application, a method for manufacturing a battery electrode core is provided, applied in the battery electrode core manufacturing equipment provided in the first aspect embodiment, the method comprising:

[0147] The core stack material strip 3 is cut by the cutting device 100 to form a core stack unit 21 on one side of the cutting device 100, and the core stack material strip 3 is blocked on the other side of the cutting device 100.

[0148] A set of battery electrode cores 19 are formed by compressing the electrode core stacking unit 21 using a compression molding device 200.

[0149] Specifically, the cutting device 100 cuts the core stacked strip 3 at the connection point of the core stacked strip 3 to form a core stacked unit 21 on one side of the cutting device 100, and blocks the core stacked strip 3 from moving in the transmission direction on the other side of the cutting device 100 to ensure that the compression molding device 200 compresses the core stacked unit 21.

[0150] Meanwhile, the compression molding device 200 compresses the electrode core stacking unit 21 to a certain thickness to form a set of battery electrode cores 19.

[0151] This application uses a cutting device 100 to cut the electrode core stacking strip 3 to form an electrode core stacking unit 21 on one side of the cutting device 100, and blocks the electrode core stacking strip 3 on the other side of the cutting device 100. Then, the electrode core stacking unit 21 is compressed by a compression molding device 200. By simultaneously performing continuous cutting and compounding processes on the electrode core stacking strip 3, a set of battery electrode cores 19 can be produced, which can improve the stacking speed of battery electrode cores 19 and improve the manufacturing efficiency of battery electrode cores 19.

[0152] In some embodiments, the step of cutting the electrode core stack strip 3 by the cutting device 100 to form an electrode core stack unit 21 on one side of the cutting device 100 and blocking the electrode core stack strip 3 on the other side of the cutting device 100 includes:

[0153] The electrode core stacked strip 3 is clamped by the first clamp 9, the second clamp 10, the third clamp 7 and the fourth clamp 12, and the electrode core stacked strip 3 is cut by the cutting mechanism 8 to form the electrode core stacked unit 3 on one side of the cutting mechanism 8, and to block the electrode core stacked strip 3 on the other side of the cutting mechanism 8.

[0154] Before the cutting device 100 cuts the core stack material strip 3, the core stack material strip 3 needs to be clamped by the first clamp 9, the second clamp 10, the third clamp 7 and the fourth clamp 12 to form a core stack material strip 3 with a V-shape at one end; at the same time, the cutting mechanism 8 cuts the core stack material strip 3 to form a core stack unit 21 on one side of the cutting machine 8, and blocks the core stack material strip 3 on the other side of the cutting mechanism 8, so that the compression forming device 200 can compress the cut core stack unit 21.

[0155] In some embodiments, the core lamination strip 3 is cut from the connection point by the cutting mechanism 8 to form the core lamination unit 21.

[0156] After the electrode core laminate strip 3 is clamped by the first clamp 9, the second clamp 10, the third clamp 7, and the fourth clamp 12 to form an electrode core laminate strip 3 with a V-shaped end, the electrode core laminate strip 3 is cut from the connection point by the cutting mechanism 8 to form an electrode core laminate unit 21 on one side of the cutting mechanism 8. The connection point is located in the blank space between the two electrodes of the core laminate strip 3. The connection point is the position reserved according to the electrode size when making the electrode core laminate strip 3. Cutting the core laminate strip 3 from this point will not damage the electrodes and can also ensure the length dimensions of the first electrode and the second electrode. In some embodiments, the clamping of the electrode core laminate strip 3 by the first clamp 9, the second clamp 10, the third clamp 7, and the fourth clamp 12 includes:

[0157] The first clamp 9 and the second clamp 10 move toward the electrode core stacked strip 3. At the same time, the third clamp 7 and the fourth clamp move toward the electrode core stacked strip 3 to jointly clamp the electrode core stacked strip 3.

[0158] Specifically, during the clamping process, the first clamp 9 and the second clamp 10 move towards the core stack material strip 3. Simultaneously, the third clamp 7 and the fourth clamp move towards the core stack material strip 3, so that the first clamp 9, the third clamp 7, the fourth clamp 12, and the second clamp 10 can sequentially clamp the first electrode 31 and the second electrode 32 of the core stack material from the blank space of the core stack material. As the core stack material strip 3 continues to advance forward, the core stack material can form a V-shaped structure.

[0159] In some embodiments, the cutting of the core lamination strip 3 from the connection point by the cutting mechanism 8 before forming the core lamination unit 21 includes:

[0160] The detection device 20 identifies and marks the connection points on the electrode core stack strip 3, the connection points being located in the blank segment between the first electrode 31 and the second electrode 32.

[0161] After the first clamp 9, the second clamp 10, the third clamp 7 and the fourth clamp 12 have finished clamping the core lamination strip 3, before the cutting mechanism 8 cuts the core lamination strip 3, the detection device 20 needs to identify and mark the connection points on the core lamination strip 3 and send the location of the connection points to the cutting device 100 so that the cutting device 100 can accurately cut the core lamination strip 3 from the connection points.

[0162] In some embodiments, the cutting of the core lamination strip 3 from the connection point by the cutting mechanism 8 after forming the core lamination unit 21 includes:

[0163] The first clamp 9 and the third clamp 7 continue to hold the core stacked strip 3, while the second clamp 10 and the fourth clamp 12 withdraw from holding the core stacked strip 3.

[0164] After the cutting device 100 cuts the core stack material strip 3, the first clamp 9 and the third clamp 7 need to continue to hold the core stack material strip 3, and the second clamp 10 and the fourth clamp 12 withdraw from holding the core stack material strip 3, so that the compression molding device 200 can compress the core stack unit 21.

[0165] In some embodiments, the compression molding apparatus 200 compresses the electrode core stack unit 21 to form a set of battery electrode cores 19, including:

[0166] The forming device 13 drives the fourth clamp 12 to press the electrode core stacking unit 21 toward the side closer to the position adjustment device 15, and / or the position adjustment device 15 presses the electrode core stacking unit 21 toward the side closer to the forming device 13 to form a set of battery electrode cores 19.

[0167] A set of battery electrode cores 19 is formed by compressing the electrode core stacking unit 21 using a compression molding device 200. Specifically, the process includes: the molding device 13 driving the fourth clamp 12 to press the electrode core stacking unit 21 towards the side closer to the position adjustment device 15, and / or, the position adjustment device 15 pressing the electrode core stacking unit 21 towards the side closer to the molding device 13, to form a set of battery electrode cores 19. During the compression process, either the molding device 13 or the position adjustment device 15 can be used for compression, or they can be used together; this application does not impose any limitation on this.

[0168] In some embodiments, before the compression molding apparatus 200 compresses the electrode stack unit 21 to form a set of battery electrode cores 19, the following steps are included:

[0169] The first clamp 9 and the third clamp 7 continue to hold the core stack material strip 3, and the second clamp 10 and the fourth clamp retract from holding the core stack material strip 3.

[0170] Before the compression molding device 200 compresses the core stacking unit 21 to form a set of battery cores 19, the first clamp 9 and the third clamp 7 need to continue to hold the core stacking strip 3, and the second clamp 10 and the fourth clamp remove from holding the core stacking strip 3 to free up working space for the compression molding device 200 to compress the core stacking unit 21.

[0171] In some embodiments, after the core stacking unit 21 is compressed by the compression molding device 200 to form a set of battery cores 19, the process includes: removing the battery cores 19 by the unloading device 11.

[0172] After a set of battery electrode cores 19 are formed in the electrode core stacking unit 21, the battery electrode cores 19 are taken out by the feeding device 11.

[0173] In some embodiments, the battery core 19 is placed on the first slide device 6 and the second slide device 14 to limit the displacement of the battery core 19 in a direction other than compression by the compression molding device 200.

[0174] In some embodiments, the forming device 13 drives the fourth clamp 12 out of the extrusion working state, and the position adjustment device 15 moves toward the pole core stacked material strip 3 until the position adjustment device 15 abuts against the pole core stacked material strip 3.

[0175] After the feeding device 11 takes out the battery electrode core 19, the next round of battery electrode core 19 production work needs to be carried out. At this time, the forming device 13 drives the fourth clamp 12 to exit the extrusion working state, and the position adjustment device 15 continues to move towards the electrode core stacking strip 3 until the position adjustment device 15 abuts against the electrode core stacking strip 3.

[0176] In some embodiments, after the position adjustment device 15 abuts against the core lamination strip 3, the following is included:

[0177] The first clamp 9 and the third clamp 7 are released from the state of clamping the core stack strip 3.

[0178] After the position adjustment device 15 comes into contact with the electrode core stack material strip 3, the first clamp 9 and the third clamp 7 also simultaneously exit the clamping state of the electrode core stack material strip 3. As the conveying device 1 pushes, the position adjustment device 15 and the electrode core stack material strip 3 move together in the transmission direction until the production of the next set of battery electrode cores 19 begins.

[0179] In some embodiments, the method of cutting the core lamination strip 3 by the cutting device 100 to form a core lamination unit 21 on one side of the cutting device 100 and blocking the core lamination strip 3 on the other side of the cutting device 100 includes:

[0180] The core stacked strip 3 is pre-folded by the first pre-folding device 4 and the second pre-folding device 5.

[0181] In order to facilitate the cutting mechanism 8 to clamp and cut the core stack material strip 3, it is usually necessary to pre-fold the core stack material strip 3 through the first pre-folding device 4 and the second pre-folding device 5.

[0182] Optionally, the first pre-folding device 4 pre-folds the core stacked material strip 3 from the blank space of the core stacked material strip 3 through multiple folding pieces in a counterclockwise direction and the second pre-folding device 5 in a clockwise direction to form a wavy core stacked material strip 3, and then transmits the wavy core stacked material strip 3 to the cutting mechanism 8 for clamping.

[0183] Before manufacturing the battery electrode core 19, the battery electrode core manufacturing equipment will pre-produce a whole piece of electrode core stack material strip 3, and the electrode core stack material strip 3 needs to be conveyed in the direction of the cutting device 100 and the compression molding device 200.

[0184] Therefore, in some embodiments, before pre-folding the electrode core laminate strip 3 using the first pre-folding device 4 and the second pre-folding device 5, the method includes:

[0185] The core stacked strip 3 is driven to one side of the first pre-folding device 4 and the second pre-folding device 5 by the conveying device 1 and the pressure roller device 2.

[0186] The battery core manufacturing method provided in this application involves sequentially combining the core separator 30, the first electrode 31, and the second electrode 32 of the battery core 19 to form a battery core 19. Each layer of the final battery core 19 can have good contact with the electrolyte, and the subsequent electrolyte wetting effect of the battery core 19 is better than that of the prior art.

[0187] A third aspect of this application provides a battery electrode core 19, the battery electrode core 19 comprising:

[0188] The multilayer electrode includes at least one first electrode 31 and at least one second electrode 32; the first electrode 31 and the second electrode 32 are stacked at intervals.

[0189] like Figure 8 As shown, the battery core 19 is mainly composed of multiple layers of electrode sheets stacked together. The multiple layers of electrode sheets include at least one first electrode sheet 31 and at least one second electrode sheet 32, and the first electrode sheet 31 and the second electrode sheet 32 ​​are stacked at intervals.

[0190] In some embodiments, the battery core 19 includes:

[0191] The core diaphragm 30 is located between the first electrode 31 and the second electrode 32, and the core diaphragm 30 is connected to at least one end on one side of the adjacent first electrode 31 and second electrode 32.

[0192] The battery core 19 package also includes a core separator 30. The first electrode 31 and the second electrode 32 are usually electrodes of different polarities. The core separator 30 needs to be arranged between the first electrode 31 and the second electrode 32 to block the first electrode 31 and the second electrode 32.

[0193] Optionally, the first electrode 31 and the second electrode 32 have different lengths. On one side of the battery core 19, the length of the second electrode 32 is greater than that of the first electrode 31. On the other side of the battery core 19, the adjacent first electrode 31 and second electrode 32 and the core separator 30 form a right triangle, with the core separator 30 being the hypotenuse of the right triangle. By setting different lengths for the first electrode 31 and the second electrode 32, the alignment of the battery core 19 can be controlled.

[0194] In some embodiments, the first electrode 31 is a positive electrode or a negative electrode, and the second electrode 32 is a positive electrode or a negative electrode.

[0195] The first electrode 31 and the second electrode 32 are usually electrodes of different polarities. The first electrode 31 can be set as a positive electrode or a negative electrode, and the second electrode 32 can be set as a positive electrode or a negative electrode. If the first electrode 31 is a positive electrode, then the second electrode 32 is a negative electrode; if the first electrode 31 is a negative electrode, then the second electrode 32 is a positive electrode.

[0196] Optionally, in order to save the cost of the battery cell 19 and ensure the capacity of the battery cell 19, the first electrode 31 of this application is a positive electrode, the second electrode 32 is a negative electrode, and the number of second electrodes 32 is less than the number of first electrodes 31. The outermost polarity of the battery cell 19 is set as the second electrode 32.

[0197] According to an embodiment of the fourth aspect of this application, a battery is provided, the battery including the battery core 19 provided in the embodiment of the third aspect of this application.

[0198] The battery provided in this application embodiment can be applied to consumer electronics, transportation, energy storage systems and emerging technology fields, and can be used in everything from smartphones and new energy vehicles to energy storage power stations and humanoid robots.

[0199] According to an embodiment of the fifth aspect of this application, an electrical power device is provided, the electrical power device including a battery provided in the embodiment of the fourth aspect of this application.

[0200] The electrical equipment provided in this application can be a device or equipment such as consumer electronics like smartphones, vehicles, energy storage devices, robots, or power equipment. The vehicle can be a plug-in hybrid electric vehicle or a new energy vehicle, etc., and this application does not specifically limit its application to this.

[0201] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0202] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0203] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0204] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A battery electrode core manufacturing equipment, characterized in that, include: Cutting device (100) and compression molding device (200); The cutting device (100) is used to cut the core stack material strip (3) to form a core stack unit (21) on one side of the cutting device (100) and to block the core stack material strip (3) on the other side of the cutting device (100). The compression molding device (200) is used to compress the electrode core stack unit (21) to form a set of battery electrode cores (19). The cutting device (100) includes a first cutting clamp (110) and a second cutting clamp (120), the first cutting clamp (110) and the second cutting clamp (120) are arranged opposite to each other, wherein the first cutting clamp (110) is on one side of the core stacked strip (3) and the second cutting clamp (120) is on the other side of the core stacked strip (3); The first cutting clamp (110) and the second cutting clamp (120) are used to clamp the core stacked strip (3); The first cutting clamp (110) includes a first clamp (9) and a second clamp (10), and the second cutting clamp (120) includes a third clamp (7) and a fourth clamp (12). The first clamp (9), the third clamp (7), the fourth clamp (12) and the second clamp (10) are arranged in sequence along the first direction at intervals. The first direction is the transmission direction of the conveying device (1). The conveying device (1) is used to convey the core stack material strip (3). The compression molding apparatus (200) includes: Forming device (13) and position adjustment device (15); The forming device (13) is located on the same side of the fourth clamp (12) and is connected to the fourth clamp (12); The position adjustment device (15) is disposed at the end along the first direction; The forming device (13) is used to drive the fourth clamp (12) to press the electrode core stack unit (21) toward the side closer to the position adjustment device (15), and / or the position adjustment device (15) is used to press the electrode core stack unit (21) toward the side closer to the forming device (13) to form a set of the battery electrode cores (19).

2. The battery core manufacturing equipment according to claim 1, characterized in that, The cutting device (100) further includes a cutting mechanism (8), which is disposed on the first side of the core stacked strip (3) and is located between the third clamp (7) and the fourth clamp (12). The cutting mechanism (8) is used to cut the core lamination strip (3) from the connection point to form the core lamination unit (21). The core stacked strip (3) includes a core diaphragm (30), a first electrode (31), and a second electrode (32). The first electrode (31) is disposed on one side of the core diaphragm (30), and the second electrode (32) is disposed on the other side of the core diaphragm (30). The first electrode (31) and the second electrode (32) are arranged alternately in sequence. A blank segment is provided between the first electrode (31) and the second electrode (32), and the connection point is located in the blank segment.

3. The battery core manufacturing equipment according to claim 2, characterized in that, include: A detection device (20) is disposed between the third clamp (7) and the fourth clamp (12); The detection device (20) is used to identify and mark the connection points on the core lamination strip (3).

4. The battery core manufacturing equipment according to claim 1, characterized in that, include: Feeding device (11) is used to remove the battery core (19).

5. The battery core manufacturing equipment according to claim 4, characterized in that, include: A grooving device (300) is used to support and limit the electrode core stack strip (3), the electrode core stack unit (21), and the battery electrode core (19).

6. The battery core manufacturing equipment according to claim 5, characterized in that, The chute device (300) includes: A first chute device (6) and a second chute device (14), wherein the first chute device (6) is disposed above the second chute device (14); The first chute device (6) is used to limit the electrode core stacking strip (3), the electrode core stacking unit (21) and the battery electrode core (19); the second chute device (14) is used to support the electrode core stacking strip (3), the electrode core stacking unit (21) and the battery electrode core (19).

7. The battery core manufacturing equipment according to claim 6, characterized in that, include: First pre-folding device (4) and second pre-folding device (5); The first pre-folding device (4) is disposed on the first side of the electrode core stacked strip (3), and the second pre-folding device (5) is disposed on the second side. Both the first pre-folding device (4) and the second pre-folding device (5) are provided with multiple folding pieces, which are used to pre-fold the electrode core stacked strip (3).

8. The battery core manufacturing equipment according to claim 7, characterized in that, The multiple folded pieces are evenly distributed at equal intervals.

9. The battery core manufacturing equipment according to claim 8, characterized in that, include: The conveying device (1) and the pressure roller device (2) are used to drive the core stacked strip (3) toward the cutting device (100).

10. A method for manufacturing a battery electrode core, characterized in that, include: The electrode core stack material strip (3) is cut by a cutting device (100) to form an electrode core stack unit (21) on one side of the cutting device (100) and to block the electrode core stack material strip (3) on the other side of the cutting device (100). This includes: clamping the electrode core stack material strip (3) by a first clamp (9), a second clamp (10), a third clamp (7) and a fourth clamp (12), and cutting the electrode core stack material strip (3) by a cutting mechanism (8) to form the electrode core stack unit (21) on one side of the cutting mechanism (8) and to block the electrode core stack material strip (3) on the other side of the cutting mechanism (8). A set of battery electrode cores (19) is formed by compressing the electrode core stack unit (21) by the compression molding device (200), including: using the molding device (13) to drive the fourth clamp (12) to squeeze the electrode core stack unit (21) towards the side closer to the position adjustment device (15), and / or using the position adjustment device (15) to squeeze the electrode core stack unit (21) towards the side closer to the molding device (13) to form a set of battery electrode cores (19).

11. The method according to claim 10, characterized in that, The core stacked strip (3) includes a core diaphragm (30), a first electrode (31) and a second electrode (32). The first electrode (31) is disposed on one side of the core diaphragm (30), and the second electrode (32) is disposed on the other side of the core diaphragm (30). The first electrode (31) and the second electrode (32) are arranged alternately in sequence. A blank segment is provided between the first electrode (31) and the second electrode (32), and the blank segment is provided with a connection point. The cutting of the electrode core laminate strip (3) by the cutting mechanism (8) includes: The core lamination strip (3) is cut from the connection point by the cutting mechanism (8) to form the core lamination unit (21).

12. The method according to claim 11, characterized in that, Before the cutting mechanism (8) cuts the core lamination strip (3) from the connection point to form the core lamination unit (21), the process includes: The connection point on the core stack strip (3) is identified by the detection device (20).

13. The method according to claim 11, characterized in that, After the cutting mechanism (8) cuts the core lamination strip (3) from the connection point to form the core lamination unit (21), the process includes: The first clamp (9) and the third clamp (7) continue to hold the core stacked strip (3), while the second clamp (10) and the fourth clamp (12) withdraw from holding the core stacked strip (3).

14. The method according to claim 10, characterized in that, The clamping of the core lamination strip (3) using the first clamp (9), the second clamp (10), the third clamp (7), and the fourth clamp (12) includes: The first clamp (9) and the second clamp (10) move toward the pole core stacked strip (3), while the third clamp (7) and the fourth clamp (12) move toward the pole core stacked strip (3) to jointly clamp the pole core stacked strip (3).

15. The method according to claim 11, characterized in that, Before the process of compressing the electrode stack unit (21) by the compression molding device (200) to form a set of battery electrode cores (19) includes: The first clamp (9) and the third clamp (7) continue to hold the core stack material strip (3), and the second clamp (10) and the fourth clamp (12) withdraw from holding the core stack material strip (3).

16. The method according to claim 10, characterized in that, After the electrode core stack unit (21) is compressed by the compression molding device (200) to form a set of battery electrode cores (19), the process includes: The battery core (19) is removed by the feeding device (11).

17. The method according to claim 10, characterized in that, include: The forming device (13) drives the fourth clamp (12) out of the extrusion working state, and the position adjustment device (15) moves toward the pole core stacked material strip (3) until the position adjustment device (15) abuts against the pole core stacked material strip (3).

18. The method according to claim 17, characterized in that, After the position adjustment device (15) abuts against the core lamination strip (3), the following is included: The first clamp (9) and the third clamp (7) are released from the state of clamping the core stack material strip (3).

19. The method according to claim 10, characterized in that, The method comprises cutting the core lamination strip (3) by the cutting device (100) to form a core lamination unit (21) on one side of the cutting device (100) and blocking the core lamination strip (3) on the other side of the cutting device (100), the method comprising: The core stacked strip (3) is pre-folded by the first pre-folding device (4) and the second pre-folding device (5).

20. The method according to claim 19, characterized in that, Before pre-folding the core laminate strip (3) using the first pre-folding device (4) and the second pre-folding device (5), the method includes: The core stacked strip (3) is driven to one side of the first pre-folding device (4) and the second pre-folding device (5) by the conveying device (1) and the pressure roller device (2).

21. A battery electrode core, manufactured using the battery electrode core manufacturing equipment according to any one of claims 1-9, or manufactured using the battery electrode core manufacturing method according to any one of claims 10-20, characterized in that, include: A multilayer electrode, the multilayer electrode comprising at least one first electrode (31) and at least one second electrode (32). The first electrode (31) and the second electrode (32) are stacked at intervals.

22. The battery electrode core according to claim 21, characterized in that, include: A core diaphragm (30) is located between the first electrode (31) and the second electrode (32), and at least one end of adjacent first electrode (31) and second electrode (32) is connected through the core diaphragm (30).

23. The battery electrode core according to any one of claims 21 to 22, characterized in that, The first electrode (31) is a positive electrode or a negative electrode, and the second electrode (30) is a positive electrode or a negative electrode.

24. A battery, characterized in that, Includes the battery electrode core as described in any one of claims 21 to 23.

25. An electrical energy device, characterized in that, Includes the battery as described in claim 24.

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