Battery pole core manufacturing equipment, battery pole core manufacturing method, battery pole core, battery and electric energy equipment

Abstract

The invention relates to the field of battery manufacturing, in particular to battery pole core manufacturing equipment, a battery pole core manufacturing method, a battery pole core, a battery and electric energy equipment. The battery pole core manufacturing equipment comprises a cutting device and a compression molding device, the cutting-off device is used for cutting off a pole core lamination material belt, so that a pole core lamination unit is formed on one side of the cutting-off device, and the pole core lamination material belt is blocked on the other side of the cutting-off device; and the compression molding device is used for compressing the pole core lamination unit to form a group of battery pole cores. The pole core lamination material belt is cut off through the cutting device, so that the pole core lamination unit is formed on one side of the cutting device, the pole core lamination material belt is blocked on the other side of the cutting device, and then the pole core lamination unit is compressed through the compression molding device; a group of battery pole cores are manufactured by simultaneously carrying out continuous cutting and compounding processes on the pole core lamination material belt, so that the pole core lamination speed can be improved, and the battery core manufacturing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted display technology, and in particular to a battery core manufacturing equipment, a manufacturing method, a battery core, a battery and an electric energy device. Background Art

[0002] With the development of new energy vehicles, new energy machinery, and other new energy equipment, batteries are being used more and more widely. In the field of lithium batteries and other batteries, a lamination process is typically used to manufacture the electrode groups of battery cells. However, prior art typically stacks the negative electrode sheets first, then coats the negative electrode sheets with a separator, then stacks the positive electrode sheets, and finally coats the positive electrode sheets with a separator. This lamination method results in a single electrode sheet or separator as the lamination unit. This method is slow, resulting in low cell manufacturing efficiency. Summary of the Invention

[0003] The embodiments of the present application provide a cell core manufacturing method, equipment, battery core, battery and electric energy equipment. By cutting and folding the first pole piece and the second pole piece of a core stacking material strip into a battery core, the core stacking speed can be increased and the battery cell manufacturing efficiency can be improved.

[0004] In order to achieve the above-mentioned object, according to the first aspect of the present application, a battery core manufacturing equipment is provided, the equipment comprising:

[0005] Cutting device and compression molding device;

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

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

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

[0009] The first cutting fixture and the second cutting fixture are used to clamp the pole core laminate strip.

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

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

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

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

[0014] Among them, the pole core laminate strip includes a pole core diaphragm, a first pole piece and a second pole piece, the first pole piece is arranged on one side of the pole core diaphragm, and the second pole piece is arranged on the other side of the pole core diaphragm, and the first pole piece and the second pole piece are arranged in sequence, and a blank section is provided between the first pole piece and the second pole piece, and the blank section is provided with the connection point.

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

[0016] The detection device is used to identify and mark the connection on the pole core laminate strip.

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

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

[0019] The forming device is used to drive the fourth clamp to squeeze the pole core laminate unit toward the side close to the position adjustment device, and / or the position adjustment device is used to squeeze the pole core laminate unit toward the side close to the forming device to form a group of the battery pole cores.

[0020] In some embodiments, the battery core manufacturing equipment includes: a blanking device, which is used to take out the battery core.

[0021] In some embodiments, the battery core manufacturing equipment includes: a slide chute device, which is used to support and limit the core laminate strip, the core laminate unit and the battery 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 chute device is used to limit the pole core laminate strip, the pole core laminate unit and the battery pole core; the second chute device is used to support the pole core laminate strip, the pole core laminate unit and the battery pole 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 arranged on the first side of the pole core laminate material strip, and the second pre-folding device is arranged on the second side. The first pre-folding device and the second pre-folding device are both provided with multiple folding sheets, and the multiple folding sheets are used to pre-fold the pole core laminate material strip.

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

[0027] In some embodiments, the battery core manufacturing equipment includes: a conveying device and a pressing roller device, and the conveying device and the pressing roller device are used to transmit the core laminate material strip to one side of the cutting device.

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

[0029] Cutting the core laminate strip by a cutting device to form a core laminate unit on one side of the cutting device and blocking the core laminate strip on the other side of the cutting device;

[0030] The pole core laminate unit is compressed by a compression molding device to form a group of battery pole cores.

[0031] In some embodiments, the cutting of the core laminate strip by a cutting device to form a core laminate unit on one side of the cutting device and blocking the core laminate strip on the other side of the cutting device includes:

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

[0033] In some embodiments, the core laminate strip includes a core diaphragm, a first pole piece, and a second pole piece, wherein the first pole piece is arranged on one side of the core diaphragm, and the second pole piece is arranged on the other side of the core diaphragm, and the first pole piece and the second pole piece are arranged in sequence, a blank section is provided between the first pole piece and the second pole piece, and the blank section is provided with a connection;

[0034] The cutting mechanism is used to cut the core laminate strip, including:

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

[0036] In some embodiments, before the cutting mechanism cuts the polar core laminate strip from the connection to form the polar core laminate unit, the method includes:

[0037] The connection on the pole core laminate strip is identified by a detection device.

[0038] In some embodiments, after the polar core laminate strip is cut from the connection by the cutting mechanism to form the polar core laminate unit, the method includes:

[0039] The first clamp and the third clamp continue to clamp the pole core laminate strip, and the second clamp and the fourth clamp withdraw from clamping the pole core laminate strip.

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

[0041] The first clamp and the second clamp move toward the direction of the pole core laminate strip, and at the same time, the third clamp and the fourth clamp move toward the direction of the pole core laminate strip to jointly clamp the pole core laminate strip.

[0042] In some embodiments, compressing the electrode core laminate unit to form a group of battery electrode cores by a compression molding device includes:

[0043] The fourth clamp is driven by the forming device to extrude the pole core lamination unit toward the side close to the position adjustment device, and / or the pole core lamination unit is extruded toward the side close to the forming device by the position adjustment device to form a group of the battery pole cores.

[0044] In some embodiments, before compressing the electrode core laminate unit to form a group of battery electrode cores using a compression molding device, the process includes:

[0045] The first clamp and the third clamp continue to clamp the pole core laminate strip, and the second clamp and the fourth clamp withdraw from clamping the pole core laminate strip.

[0046] In some embodiments, after compressing the core laminate unit to form a set of battery cores using a compression molding device, the method includes:

[0047] The battery core is taken out by a blanking device.

[0048] In some embodiments, the method includes: the forming device drives the fourth clamp to exit the extrusion working state, and the position adjustment device moves toward the polar core laminate strip until the position adjustment device abuts against the polar core laminate strip.

[0049] In some embodiments, after the position adjustment device abuts against the core laminate strip, the method includes:

[0050] The first clamp and the third clamp exit the state of clamping the pole core laminate strip.

[0051] In some embodiments, before the core laminate strip is cut by a cutting device to form a core laminate unit on one side of the cutting device and the core laminate strip is blocked on the other side of the cutting device, the method includes:

[0052] The pole core laminate strip is pre-folded by a first pre-folding device and a second pre-folding device.

[0053] In some embodiments, before pre-folding the core laminate strip by the first pre-folding device and the second pre-folding device, the method includes:

[0054] The pole core laminate material strip is transmitted to one side of the first pre-folding device and the second pre-folding device through a conveying device and a pressing roller device.

[0055] According to a third aspect of the present application, a battery core is provided, comprising:

[0056] A multi-layer pole piece, comprising at least one first pole piece and at least one second pole piece;

[0057] The first pole piece and the second pole piece are alternately stacked.

[0058] In some embodiments, the battery core includes: a core diaphragm, the core diaphragm is located between the first pole piece and the second pole piece, and at least one end of the adjacent first pole piece and the second pole piece is connected through the core diaphragm.

[0059] In some embodiments, the first electrode is a positive electrode or a negative electrode.

[0060] According to a fourth aspect of the present application, a battery is provided, comprising the battery core provided in the third aspect of the present application.

[0061] According to a fifth aspect of the present application, an electric energy device is provided, which includes the battery provided in the fourth aspect of the present application.

[0062] The present application uses a cutting device to cut the pole core laminate strip to form a pole core laminate unit on one side of the cutting device, and blocks the pole core laminate strip on the other side of the cutting device, and then compresses the pole core laminate unit through a compression molding device. By simultaneously performing continuous cutting and compounding processes on the pole core laminate strip to form a group of battery pole cores, the pole core lamination speed can be increased and the battery cell manufacturing efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0064] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0065] Figure 1 1 is a schematic diagram of a continuous pre-folding process of a core laminate strip provided in an exemplary embodiment of the present application;

[0066] Figure 2 This is a schematic diagram of the end of pre-folding of a pole core laminate strip provided in an exemplary embodiment of the present application;

[0067] Figure 3 Schematic diagram of a cutting fixture clamping a core laminate strip provided in an exemplary embodiment of the present application;

[0068] Figure 4 This is a schematic diagram of a process of cutting a core laminate strip using a cutting device provided in an exemplary embodiment of the present application;

[0069] Figure 5 Schematic diagram of a cutting fixture providing preliminary compression of a pole core lamination unit in an exemplary embodiment of the present application;

[0070] Figure 6 This is a schematic diagram of a discharge device for removing a battery core provided in an exemplary embodiment of the present application;

[0071] Figure 7 This is a schematic diagram of a blanking device removing a completed battery core provided in an exemplary embodiment of the present application;

[0072] Figure 8 This is a schematic diagram of a battery core structure provided in an exemplary embodiment of the present application;

[0073] Figure 9 It is a schematic diagram of a cutting mechanism structure provided in an exemplary embodiment of the present application.

[0074] Reference numerals:

[0075] Conveying device: 1; pressing roller device: 2; first pre-folding device: 4; second pre-folding device: 5; chute device: 300; first chute device: 6; second chute device; 14; pole core laminate material strip: 3; pole core diaphragm: 30; first pole piece: 31; second pole piece: 32; cutting device: 100; first cutting fixture: 110; first fixture: 9; second fixture: 10; second cutting fixture: 120; third fixture: 7; fourth fixture: 12; cutting mechanism: 8; compression molding device: 200; molding device: 13; position adjustment device: 15; unloading device: 11; detection device: 20; battery stage core: 19; pole core laminate unit: 21. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0078] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0079] In the description of the embodiments of the present application, technical terms such as "one side" and "one end" are only used to distinguish different directions and positions, and cannot be understood as indicating or implying relative importance or implicitly indicating the direction, position or specific order or primary and secondary relationship of the indicated technical features.

[0080] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0081] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0082] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0083] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection through a network. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0084] The following describes the battery core manufacturing equipment, manufacturing method, battery core, battery and electric energy equipment of the embodiments of the present application with reference to the accompanying drawings.

[0085] In one embodiment of the present application, see Figures 1 to 7 , provides a battery core manufacturing equipment, wherein the battery core manufacturing equipment includes:

[0086] Cutting device 100 and compression molding device 200;

[0087] The cutting device 100 is used to cut the core laminate strip 3 to form a core laminate unit 21 on one side of the cutting device 100 and block the core laminate strip 3 on the other side of the cutting device 100;

[0088] The compression molding device 200 is used to compress the pole core lamination unit 21 to form a group of battery pole cores 19.

[0089] During the manufacturing process of the battery core 19, the entire core laminate strip 3 is usually manufactured and then transmitted to other devices, and then these devices perform a series of operations such as folding, cutting, and compressing the entire core laminate strip 3. The folded part of the core laminate strip 3 is cut to form a core laminate unit 21, and the core laminate unit 21 is compressed to form a group of battery cores 19.

[0090] Specifically, the battery core manufacturing equipment cuts the entire core laminate strip 3 through the cutting device 100. After the cutting device 100 cuts the core laminate strip 3, a core laminate unit 21 is formed on one side of the cutting device 100, and then the cutting device 100 continues to block the remaining core laminate strip 3 on the other side, and then the core laminate unit 21 is compressed by the compression molding device 200 to form a group of battery cores 19.

[0091] In some embodiments, the core laminate strip 3 provided herein includes a core diaphragm 30, a first pole piece 31, and a second pole piece 32. The first pole piece 31 is disposed on one side of the core diaphragm 30, and the second pole piece 32 is disposed on the other side of the core diaphragm 30. The first pole piece 31 and the second pole piece 32 are spaced apart in sequence, and a blank section is disposed between the first pole piece 31 and the second pole piece 32, and the blank section is provided with a connection. The deformation length of the single-layer core diaphragm 30 of this structure is controllable, and the deformation amount of the core diaphragm 30 each time it is folded is almost the same. The uniformity of the final battery core 19 is superior to that of the prior art.

[0092] In the present application, the pole core laminate strip 3 is cut by a cutting device 100 to form a pole core laminate unit 21 on one side of the cutting device 100, and the pole core laminate strip 3 is blocked on the other side of the cutting device 100, and then the pole core laminate unit 21 is compressed by a compression molding device 200. By continuously cutting and compounding the pole core laminate strip 3 at the same time, a group of battery pole cores 19 are formed, which can increase the pole core lamination speed and improve the battery cell manufacturing efficiency.

[0093] In some embodiments, the battery core manufacturing equipment further includes: a conveying device 1 and a pressing roller device 2, wherein the conveying device 1 and the pressing roller device 2 are used to transmit the core laminate strip 3 to one side of the cutting device 100.

[0094] First, the pole core laminate material strip 3 needs to be transmitted in the same direction through the conveying device 1 and the pressure roller device 2. Usually, the conveying device 1 and the pressure roller device 2 work in conjunction with each other, and the pole core laminate material strip 3 is placed on the conveying device 1, and the pole core laminate material strip 3 is conveyed in the conveying direction, so that the pole core laminate material strip 3 passes through the pressure roller device 2 and smoothly conveys the pole core laminate material strip 3 to the first direction in a fixed direction, wherein the first direction is the transmission direction of the conveying device 1.

[0095] 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., and this application does not limit this.

[0096] In some embodiments, the battery core manufacturing equipment includes:

[0097] a first pre-folding device 4 and a second pre-folding device 5;

[0098] The first pre-folding device 4 is arranged on the first side of the pole core laminate material strip 3, and the first pre-folding device 4 is arranged on the second side. The first pre-folding device 4 and the second pre-folding device 5 are both provided with multiple folding sheets, and the multiple folding sheets are used to pre-fold the pole core laminate material strip 3.

[0099] according to Figure 1 As shown, it is a schematic diagram of a continuous pre-folding process of a core laminated material strip 3 provided by this application:

[0100] Among them, the first pre-folding device 4 and the second pre-folding device 5 are usually arranged 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 pole core laminate 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 each other, and the first pre-folding device 4 is arranged on the first side of the pole core laminate material strip 3, and the second pre-folding device 5 is arranged on the second side. As shown in the figure, the first side and the second side are respectively on both sides of the pole core laminate material strip 3. The first side and the second side are arranged opposite each other, and the first pre-folding device 4 and the second pre-folding device 5 move in relative directions. For example, if the first pre-folding device 4 moves counterclockwise, the second pre-folding device 5 moves clockwise, and vice versa. Its purpose is to convey the pole core laminate material strip 3 in the transmission direction.

[0101] The first pre-folding device 4 and the second pre-folding device 5 are both provided with a plurality of folding sheets, and the plurality of folding sheets are serrated on the first pre-folding device 4 and the second pre-folding device 5. When the pole core laminate material strip 3 passes through 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 pre-fold the pole core laminate material strip 3 through the plurality of folding sheets to form a wavy pole core laminate material strip 3, and at the same time continue to convey the wavy pole core laminate material strip 3 in the conveying direction, such as Figure 2 As shown in FIG, a schematic diagram of a cutting fixture provided in the present application clamping a pole core laminate strip 3 is shown.

[0102] Optionally, the transmission mode 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 again does not impose any restrictions.

[0103] In some embodiments, the plurality of folded sheets are evenly distributed with equal intervals.

[0104] Typically, the multiple folding sheets on the first pre-folding device 4 and the second pre-folding device 5 are evenly spaced and the spacing between the multiple folding sheets is adjustable. The distance between two folding sheets is typically equal to the distance between the first pole piece 31 and the second pole piece 32 of the core laminate strip 3. At the same time, the multiple folding sheets on the first pre-folding device 4 and the multiple folding sheets on the second pre-folding device 5 are staggered with each other, making it easier for the first pre-folding device 4 and the second pre-folding device 5 to pre-fold each adjacent pole piece of the core laminate strip 3 from the connection point to form a continuous wavy core laminate strip 3.

[0105] The conveying device 1 , the pressing roller device 2 , the first pre-folding device 4 and the second pre-folding device 5 continue to convey the pre-folded pole core laminate strip 3 in the conveying direction to the cutting fixture for clamping and cutting to form a pole core laminate unit 21 .

[0106] In some embodiments, the cutting device 100 includes a first cutting fixture 110 and a second cutting fixture 120 , wherein the first cutting fixture 110 and the second cutting fixture 120 are disposed opposite to each other;

[0107] The first cutting fixture 110 and the second cutting fixture 120 are used to clamp the pole core laminate strip 3 .

[0108] like Figure 3 As shown, this is a schematic diagram of a cutting fixture provided by the present application holding a core laminate strip 3:

[0109] The cutting device 100 includes a first cutting fixture 110 and a second cutting fixture 120. After the core laminate strip 3 is transferred to the first cutting fixture 110 and the second cutting fixture 120, the first cutting fixture 110 and the second cutting fixture 120 clamp the core laminate strip 3. Typically, the first cutting fixture 110 and the second cutting fixture 120 are arranged relative to each other: that is, the first cutting fixture 110 is on one side of the core laminate strip 3, and the second cutting fixture 120 is on the other side of the core laminate strip 3. The first cutting fixture 110 can move toward the second cutting fixture 120, and at the same time, the second cutting fixture 120 can move toward the first cutting fixture.

[0110] After the core laminate strip 3 is transferred between the first cutting fixture 110 and the second cutting fixture 120 , the core laminate strip 3 needs to be clamped. The first cutting fixture 110 and the second cutting fixture 120 move toward the core laminate strip 3 at the same time to clamp the core laminate strip 3 .

[0111] In some embodiments, the first cutting jig 110 includes a first jig 9 and a first jig 10 , and the second cutting jig 120 includes a third jig 7 and a fourth jig 12 ;

[0112] The first clamp 9 , the third clamp 7 , the fourth clamp 12 and the first clamp 10 are sequentially arranged along the first direction at intervals.

[0113] Optionally, the first cutting jig 110 includes a first jig 9 and a first jig 10 , and the second cutting jig 120 includes a third jig 7 and a fourth jig 12 .

[0114] The first clamp 9, the third clamp 7, the fourth clamp 12 and the first clamp 10 are arranged in sequence along the first direction, and the spacing distance is usually smaller than the spacing between the first pole piece 31 and the second pole piece 32 in the pole core laminate strip 3, so that the pole core laminate strip 3 can be clamped by the first clamp 9, the third clamp 7, the fourth clamp 12 and the first clamp 10, and a V-shaped pole core laminate strip 3 is formed, which is convenient for the compression molding device 200 to compress it.

[0115] In some embodiments, the cutting fixture further includes a cutting mechanism 8, which is disposed on the first side of the pole core laminate strip 3, and the cutting mechanism 8 is located between the third fixture 7 and the fourth fixture 12;

[0116] The cutting mechanism 8 is used to cut the pole core lamination strip 3 from the connection to form the pole core lamination unit 21 .

[0117] like Figure 4 As shown, it is a schematic diagram of the process of cutting the pole core laminate strip 3 by a cutting device 100 provided in the present application: after the cutting mechanism 8 clamps and folds the pole core laminate strip 3 to generate a V-shaped pole core laminate strip 3, the pole core laminate strip 3 needs to be cut from the connection by the cutting mechanism 8 to form a pole core laminate unit 21.

[0118] Optionally, the cutting mechanism 8 is located between the third clamp 7 and the fourth clamp 12 , so that the pole core laminate strip 3 after cutting includes a plurality of first pole pieces 31 and second pole pieces 32 .

[0119] Typically, the cutting mechanism 8 is disposed on the first side of the pole core laminate strip 3 , and there is no other equipment blocking the first side, which is more conducive to the cutting mechanism 8 cutting the pole core laminate strip 3 .

[0120] like Figure 9 As shown, it is a structural schematic diagram of a cutting mechanism 8 provided in the present application: wherein, the cutting mechanism 8 can be a slanted single-edged structure or a straight single-edged structure. This structure can ensure that the pole core diaphragm 30 can be cut simultaneously when moving along the length direction of the pole core laminated strip 3.

[0121] In some embodiments, the battery core manufacturing equipment includes a detection device 20, which is arranged between the third clamp 7 and the fourth clamp 12; the detection device 20 is used to identify and mark the connection on the core laminate strip 3.

[0122] After the cutting mechanism 8 clamps and folds the pole core laminate strip 3 to form a V-shaped pole core laminate strip 3, before the cutting mechanism 8 cuts the pole core laminate strip 3, it is necessary to identify and mark the connection on the pole core laminate strip 3 through the detection device 20, and then the cutting mechanism 8 can adjust the cutting position so that the cutting mechanism 8 can accurately cut from the connection.

[0123] Optionally, the detection device 20 is usually arranged between the third clamp 7 and the fourth clamp 12, and can be arranged above, below, or on the side of the core laminate strip 3 of the cutting mechanism 8, as long as the cut connection of the core laminate strip 3 can be identified.

[0124] 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 the present application is usually arranged directly above the cutting mechanism 8; when 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 to directly below the detection device 20 and cuts the pole core laminate strip 3 from the connection.

[0125] In some embodiments, the compression molding device 200 includes a molding device 13 and a position adjustment device 15;

[0126] The forming device 13 is located on the same side of the fourth fixture 12 and is connected to the fourth fixture 12;

[0127] The position adjustment device 15 is provided at the end along the first direction;

[0128] The forming device 13 is used to drive the fourth clamp 12 to squeeze the pole core lamination unit 21 toward the side close to the position adjustment device 15, and / or the position adjustment device 15 is used to squeeze the pole core lamination unit 21 toward the side close to the forming device 13 to form a group of the battery pole cores 19.

[0129] After the cutting mechanism 8 cuts the pole core laminate strip 3 from the connection to form the pole core laminate unit 21 , the pole core laminate unit 21 needs to be compressed to form the battery pole core 19 .

[0130] Optional, such as Figure 5 The figure shows a schematic diagram of a cutting fixture provided by the present application for initially compressing the pole core lamination unit 21:

[0131] The compression molding device 200 includes a molding device 13 and a position adjustment 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 adjustment device 15 is arranged at the end of the first direction, that is, the first end in the figure. The position adjustment device 15 is arranged parallel to the conveying device 1. The relative position of the position adjustment device 15 can be moved, usually in a direction opposite to the first direction. On the one hand, it can compress the core laminate unit 21, and on the other hand, it also needs to abut against the core laminate strip 3 to prevent it from continuing to move in the conveying direction.

[0132] After the cutting mechanism 8 cuts the pole core laminate strip 3 from the connection to form the pole core laminate unit 21, the first clamp 9 and the third clamp 7 are fixed and continue to clamp the pole core laminate strip 3, and block the pole core laminate strip 3 in the opposite direction of the conveying direction. At this time, the first clamp 10 and the fourth clamp 12 withdraw from the clamping, and the fourth clamp 12 is pushed to the middle position of the pole core laminate strip 3, which can abut against the pole piece of the pole core laminate unit 21, so that the blank section of the pole core diaphragm 30 is attached to the pole piece of the pole core laminate unit 21. Then, the forming device 13 drives the fourth clamp 12 to move toward one side of the position adjustment device 15, and / or the position adjustment device 15 moves toward one side of the forming device 13, and continues to move toward one side of the position adjustment device 15 after abutting against the pole core stacking unit 21; finally, the forming device 13 and the position adjustment device 15 apply compression forces in opposite directions to the pole core stacking unit 21, compressing the pole core stacking unit 21 to a certain thickness, thereby forming a battery pole core 19.

[0133] In some embodiments, the battery core manufacturing equipment includes a blanking device 11, and the blanking device 11 is used to remove the battery core 19.

[0134] like Figure 6 As shown, it is a schematic diagram of a blanking device 11 provided in this application taking out a battery core 19:

[0135] After the process of manufacturing a set of battery cores 19 is completed, the unloading device 11 clamps the battery cores 19 and takes out the manufactured battery cores 19 .

[0136] like Figure 7 As shown, this is a schematic diagram of the end of a blanking device 11 taking out a battery core 19 provided by the present application:

[0137] After the unloading device 11 removes the completed battery cell 19, the forming device 13 and the fourth clamp 12 withdraw, and the position adjustment device 15 continues to move in the direction opposite to the transmission direction. Simultaneously, the first clamp 9 and the third clamp 7 release their clamping state until the position adjustment device 15 abuts the core laminate strip 3. The position adjustment device 15 then moves in the transmission direction along with the core laminate strip 3. The battery cell manufacturing equipment then uses various components to perform a new round of clamping, cutting, and compressing the core laminate strip 3, repeating the battery cell 19 manufacturing process.

[0138] In some embodiments, the battery core manufacturing equipment includes:

[0139] The chute device 300 is used to support and limit the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19.

[0140] Optionally, the battery core manufacturing equipment further includes a chute 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 conveyor device 1. Typically, the chute device 300 is disposed between the first cutting fixture 110 and the second cutting fixture 120, and is used to support and limit the core laminate strip 3, the core laminate unit 21, and the battery core 19.

[0141] Optionally, the chute device 300 can be matched with a clockwise conveying device 1 to enhance the smoothness of the conveying of the pre-folded pole core laminate material strip 3 on the chute device 300, and can also be matched with linear vibration characteristics in the conveying direction or opposite to the conveying direction to enhance the smoothness of the conveying of the pre-folded pole core laminate material strip 3 on the chute device 300.

[0142] In some embodiments, the chute device 300 includes:

[0143] A first chute device 6 and a second chute device 14, wherein the first chute device 6 is arranged directly above the second chute device 14;

[0144] The first chute device 6 is used to limit the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19; the second chute device 14 is used to support the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19.

[0145] Optionally, the chute device 300 includes a first chute device 6 and a second chute device 14, the first chute device 6 is arranged directly above the second chute device 14, the first chute device 6 has a hollow groove, which is used to limit the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19, so that the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19 are stuck in the first chute device 6 and can only move in the transmission direction; the second chute device 14 is used to support the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19, so that the pole core laminate strip 3, the pole core laminate unit 21 and the battery pole core 19 can move on the second chute device 14.

[0146] Optionally, the first chute device 6 can be partially connected and installed with the second chute device 14, or can be independently fixed and work in conjunction with each other, and this application does not impose any restrictions on this.

[0147] In another embodiment of the present application, a method for manufacturing a battery core is provided, which is applied to the battery core manufacturing equipment provided in the embodiment of the first aspect, and the method includes:

[0148] Cutting the core laminate strip 3 by the cutting device 100 to form a core laminate unit 21 on one side of the cutting device 100 and blocking the core laminate strip 3 on the other side of the cutting device 100;

[0149] The core lamination unit 21 is compressed by a compression molding device 200 to form a group of battery cores 19.

[0150] Specifically, the pole core laminate strip 3 is cut at the connection of the pole core laminate strip 3 by the cutting device 100 to form a pole core laminate unit 21 on one side of the cutting device 100, and the pole core laminate strip 3 is blocked from being transmitted in the transmission direction on the other side of the cutting device 100 to ensure that the compression molding device 200 compresses the pole core laminate unit 21.

[0151] At the same time, the compression molding device 200 compresses the pole core laminate unit 21 to a certain thickness to form a group of battery pole cores 19.

[0152] In the present application, the pole core laminate strip 3 is cut by a cutting device 100 to form a pole core laminate unit 21 on one side of the cutting device 100, and the pole core laminate strip 3 is blocked on the other side of the cutting device 100, and then the pole core laminate unit 21 is compressed by a compression molding device 200. By simultaneously performing continuous cutting and compounding processes on the pole core laminate strip 3, a group of battery pole cores 19 are formed, which can increase the stacking speed of the battery pole core 19 and improve the manufacturing efficiency of the battery pole core 19.

[0153] In some embodiments, the cutting device 100 cuts the core laminate strip 3 to form a core laminate unit 21 on one side of the cutting device 100 and blocks the core laminate strip 3 on the other side of the cutting device 100, including:

[0154] The pole core laminate strip 3 is clamped by the first clamp 9, the first clamp 10, the third clamp 7 and the fourth clamp 12, and the pole core laminate strip 3 is cut by the cutting mechanism 8 to form the pole core laminate unit 3 on one side of the cutting mechanism 8 and block the pole core laminate strip 3 on the other side of the cutting mechanism 8.

[0155] Before the cutting device 100 cuts the pole core laminate strip 3, the pole core laminate strip 3 needs to be clamped by the first clamp 9, the first clamp 10, the third clamp 7 and the fourth clamp 12 to form a pole core laminate strip 3 with a V-shaped end; at the same time, the pole core laminate strip 3 is cut by the cutting mechanism 8 to form a pole core laminate unit 21 on one side of the cutting machine 8, and the pole core laminate strip 3 is blocked on the other side of the cutting mechanism 8 to facilitate the compression molding device 200 to compress the cut pole core laminate unit 21.

[0156] In some embodiments, the polar core lamination strip 3 is cut from the connection by the cutting mechanism 8 to form the polar core lamination unit 21 .

[0157] After the first clamp 9, the first clamp 10, the third clamp 7 and the fourth clamp 12 clamp the core laminate material strip 3 to form a V-shaped core laminate material strip 3 at one end, the core laminate material strip 3 is cut from the connection by the cutting mechanism 8 to form a core laminate unit 21 on one side of the cutting mechanism 8. The connection is located in the blank space between the two pole pieces of the core laminate material strip 3. The connection is the position reserved according to the size of the pole piece when making the core laminate material strip 3. Cutting the core laminate material strip 3 from here will not damage the pole piece, and can also ensure the length size of the first-stage piece and the second pole piece. In some embodiments, the clamping of the core laminate material strip 3 by the first clamp 9, the first clamp 10, the third clamp 7 and the fourth clamp 12 includes:

[0158] The first clamp 9 and the first clamp 10 move toward the pole core laminate strip 3 , and at the same time, the third clamp 7 and the fourth clamp are used to move toward the pole core laminate strip 3 to jointly clamp the pole core laminate strip 3 .

[0159] Specifically, during the clamping process, the first clamp 9 and the first clamp 10 move toward the core laminate strip 3. At the same time, the third clamp 7 and the fourth clamp are used to move toward the core laminate strip 3, so that the first clamp 9, the third clamp 7, the fourth clamp 12, and the first clamp 10 can sequentially clamp the first pole piece 31 and the second pole piece 32 of the core laminate from the blank area of ​​the core laminate. As the core laminate strip 3 continues to move forward, the core laminate can form a V-shaped structure.

[0160] In some embodiments, the cutting mechanism 8 is used to cut the polar core laminate strip 3 from the connection to form the polar core laminate unit 21, which includes:

[0161] The connection on the pole core laminate strip 3 is identified and marked by the detection device 20 . The connection is located in the blank section between the first pole piece 31 and the second pole piece 32 .

[0162] After the first clamp 9, the first clamp 10, the third clamp 7 and the fourth clamp 12 finish clamping the pole core laminate strip 3, before the cutting mechanism 8 cuts the pole core laminate strip 3, it is necessary to use the detection device 20 to identify and mark the connection on the pole core laminate strip 3, and send the position of the connection to the cutting device 100, so that the cutting device 100 can accurately cut the pole core laminate strip 3 from the connection.

[0163] In some embodiments, after the polar core lamination strip 3 is cut from the connection by the cutting mechanism 8 to form the polar core lamination unit 21 , the process includes:

[0164] The first clamp 9 and the third clamp 7 continue to clamp the pole core laminate strip 3 , and the first clamp 10 and the fourth clamp 12 withdraw from clamping the pole core laminate strip 3 .

[0165] After the cutting device 100 cuts the pole core laminate strip 3, the first clamp 9 and the third clamp 7 need to continue to clamp the pole core laminate strip 3, and the first clamp 10 and the fourth clamp 12 withdraw from clamping the pole core laminate strip 3 to facilitate the compression molding device 200 to compress the pole core laminate unit 21.

[0166] In some embodiments, the compression molding device 200 compresses the core laminate unit 21 to form a set of battery cores 19, including:

[0167] The fourth clamp 12 is driven by the forming device 13 to squeeze the pole core lamination unit 21 toward the side close to the position adjustment device 15, and / or the pole core lamination unit 21 is squeezed toward the side close to the forming device 13 by the position adjustment device 15 to form a group of the battery pole cores 19.

[0168] The core laminate unit 21 is compressed by the compression molding device 200 to form a group of battery cores 19. The specific process includes: the molding device 13 drives the fourth clamp 12 to squeeze the core laminate unit 21 toward the side close to the position adjustment device 15, and / or, the position adjustment device 15 squeezes the core laminate unit 21 toward the side close to the molding device 13 to form a group of battery cores 19. In the compression process, the molding device 13 and the position adjustment device 15 can be compressed by either one or both, and the present application does not limit this.

[0169] In some embodiments, before compressing the electrode core laminate unit 21 to form a set of battery electrode cores 19 by the compression molding device 200, the process includes:

[0170] The first clamp 9 and the third clamp 7 continue to clamp the pole core laminate strip 3 , and the first clamp 10 and the fourth clamp withdraw from clamping the pole core laminate strip 3 .

[0171] Before the compression molding device 200 compresses the pole core stacking unit 21 to form a group of battery pole cores 19, the first clamp 9 and the third clamp 7 need to continue to clamp the pole core stacking strip 3, and the first clamp 10 and the fourth clamp withdraw from clamping the pole core stacking strip 3 to make working space for the compression molding device 200 to compress the pole core stacking unit 21.

[0172] In some embodiments, after compressing the electrode core stack unit 21 to form a group of battery electrode cores 19 by the compression molding device 200, the method further includes: taking out the battery electrode core 19 by the unloading device 11.

[0173] After the electrode core lamination unit 21 is made into a group of battery electrode cores 19 , the battery electrode cores 19 are taken out by the unloading device 11 .

[0174] In some embodiments, the battery core 19 is placed on the first chute device 6 and the second chute device 14 to limit the displacement of the battery core 19 in directions other than compression by the compression molding device 200.

[0175] In some embodiments, the forming device 13 drives the fourth clamp 12 to exit the extrusion working state, and the position adjustment device 15 moves toward the pole core laminate strip 3 until the position adjustment device 15 abuts against the pole core laminate strip 3.

[0176] After the unloading device 11 takes out the battery core 19, the next round of battery 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 toward the core laminated material strip 3 until the position adjustment device 15 abuts against the core laminated material strip 3.

[0177] In some embodiments, after the position adjustment device 15 abuts against the pole core laminate strip 3, the following steps are included:

[0178] The first clamp 9 and the third clamp 7 exit the state of clamping the pole core laminate strip 3 .

[0179] After the position adjustment device 15 contacts the core laminate strip 3, the first clamp 9 and the third clamp 7 also simultaneously withdraw from the state of clamping the core laminate strip 3. As the conveyor device 1 pushes, the position adjustment device 15 and the core laminate strip 3 move together in the transmission direction until the production of the next group of battery cores 19 begins.

[0180] In some embodiments, the method includes: cutting the core laminate strip 3 by the cutting device 100 to form the core laminate unit 21 on one side of the cutting device 100 , and blocking the core laminate strip 3 on the other side of the cutting device 100 .

[0181] The pole core laminate strip 3 is pre-folded by a first pre-folding device 4 and a second pre-folding device 5 .

[0182] In order to facilitate the cutting mechanism 8 to clamp and cut the pole core laminate strip 3 , it is usually necessary to pre-fold the pole core laminate strip 3 through the first pre-folding device 4 and the second pre-folding device 5 .

[0183] Optionally, the first pre-folding device 4 pre-folds the pole core laminate material strip 3 from the blank area of ​​the pole core laminate material strip 3 in a counterclockwise direction and the second pre-folding device 5 pre-folds the pole core laminate material strip 3 in a clockwise direction through multiple folding sheets to form a wavy pole core laminate material strip 3, and transfers the wavy pole core laminate material strip 3 to the cutting mechanism 8 for clamping.

[0184] Before making the battery core 19 , the battery core manufacturing equipment will prepare a whole piece of core laminate material strip 3 in advance, and the core laminate material strip 3 needs to be transported toward the cutting device 100 and the compression molding device 200 .

[0185] Therefore, in some embodiments, before the first pre-folding device 4 and the second pre-folding device 5 pre-fold the core laminate strip 3, the method includes:

[0186] The pole core laminate strip 3 is transmitted to one side of the first pre-folding device 4 and the second pre-folding device 5 through the conveying device 1 and the pressing roller device 2 .

[0187] The battery core manufacturing method provided in the present application is that the core diaphragm 30 and the first pole piece 31 and the second pole piece 32 of the battery pole core 19 are sequentially combined into a battery pole core 19 from top to bottom. Each layer of pole pieces of the finally formed battery pole core 19 can be in good contact with the electrolyte, and the subsequent electrolyte infiltration effect of the battery pole core 19 is better than the existing technology.

[0188] A third embodiment of the present application provides a battery core 19, wherein the battery core 19 comprises:

[0189] The multi-layer pole piece includes at least one first pole piece 31 and at least one second pole piece 32 ; the first pole piece 31 and the second pole piece 32 are arranged in an alternating and stacked manner.

[0190] like Figure 8 As shown, the battery core 19 is mainly composed of a plurality of stacked pole pieces, and the plurality of pole pieces include at least one first pole piece 31 and at least one second pole piece 32 , and the first pole piece 31 and the second pole piece 32 are stacked alternately.

[0191] In some embodiments, the battery core 19 includes:

[0192] The core diaphragm 30 is located between the first pole piece 31 and the second pole piece 32 , and the core diaphragm 30 is connected at least at one end of one side of the adjacent first pole piece 31 and the second pole piece 32 .

[0193] The battery core 19 also includes a core diaphragm 30. The first pole piece 31 and the second pole piece 32 are usually pole pieces of different polarities. A core diaphragm 30 needs to be arranged between the first pole piece 31 and the second pole piece 32 to block the first pole piece 31 and the second pole piece 32.

[0194] Optionally, the lengths of the first pole piece 31 and the second pole piece 32 are different. On one side of the battery core 19, the length of the second pole piece 32 is greater than that of the first pole piece 31; on the other side of the battery core 19, the adjacent first pole piece 31 and second pole piece 32 and the pole core diaphragm 30 form a right triangle, and the pole core diaphragm 30 is the hypotenuse of the right triangle. By setting different lengths of the first pole piece 31 and the second pole piece 32, the alignment of the battery core 19 can be controlled.

[0195] 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.

[0196] The first electrode 31 and the second electrode 32 are generally 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, the second electrode 32 is a negative electrode; if the first electrode 31 is a negative electrode, the second electrode 32 is a positive electrode.

[0197] Optionally, in order to save the cost of the battery core 19 and ensure the capacitance of the battery core 19, the first electrode 31 of the present application is a positive electrode, the second electrode 32 is a negative electrode, and the number of the second electrode 32 is less than the first electrode 31, and the outermost polarity piece of the battery core 19 is set to the second electrode 32.

[0198] According to an embodiment of the fourth aspect of the present application, a battery is provided, comprising the battery core 19 provided in the embodiment of the third aspect of the present application.

[0199] The battery provided in the embodiments of the present application can be used in areas covering consumer electronics, transportation, energy storage systems and emerging technology fields, and can be used in everything from smartphones, new energy vehicles to energy storage power stations and humanoid robots.

[0200] According to an embodiment of the fifth aspect of the present application, an electric energy device is provided, and the electric energy device includes the battery provided in the embodiment of the fourth aspect of the present application.

[0201] The electric energy devices provided in the embodiments of this application may be devices or equipment such as consumer electronics such as smartphones, vehicles, energy storage devices, robots, power equipment, etc. The vehicles may be plug-in hybrid electric vehicles or new energy vehicles, etc., which are not specifically limited in this application.

[0202] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify 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, "plurality" means two or more, unless otherwise specifically defined.

[0203] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0204] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0205] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A battery core manufacturing equipment, characterized in that: include: A cutting device (100) and a compression molding device (200); The cutting device (100) is used to cut the polar core lamination strip (3) to form a polar core lamination unit (21) on one side of the cutting device (100) and to block the polar core lamination strip (3) on the other side of the cutting device (100); The compression molding device (200) is used to compress the pole core lamination unit (21) to form a group of battery pole cores (19).

2. The battery core manufacturing equipment according to claim 1, characterized in that: The cutting device (100) comprises a first cutting fixture (110) and a second cutting fixture (120), wherein the first cutting fixture (110) and the second cutting fixture (120) are arranged opposite to each other; The first cutting fixture (110) and the second cutting fixture (120) are used to clamp the pole core laminate strip (3).

3. The battery core manufacturing equipment according to claim 2, characterized in that: The first cutting fixture (110) includes a first fixture (9) and a second fixture (10), and the second cutting fixture (120) includes a third fixture (7) and a fourth fixture (12); The first clamp (9), the third clamp (7), the fourth clamp (12) and the second clamp (10) are sequentially arranged at intervals along the first direction.

4. The battery core manufacturing equipment according to claim 3, characterized in that: The cutting fixture (100) further comprises a cutting mechanism (8), wherein the cutting mechanism (8) is arranged on a first side of the pole core laminate strip (3), and the cutting mechanism (8) is located between the third fixture (7) and the fourth fixture (12); The cutting mechanism (8) is used to cut the polar core lamination strip (3) from the connection to form the polar core lamination unit (21); The pole core laminate strip (3) comprises a pole core diaphragm (30), a first pole piece (31) and a second pole piece (32), wherein the first pole piece (31) is arranged on one side of the pole core diaphragm (30), and the second pole piece (32) is arranged on the other side of the pole core diaphragm (30), and the first pole piece (31) and the second pole piece (32) are arranged in sequence and spaced apart, and a blank section is provided between the first pole piece (31) and the second pole piece (32), and the blank section is provided with the connection portion.

5. The battery core manufacturing equipment according to claim 4, characterized in that: include: a detection device (20), the detection device (20) being arranged between the third clamp (7) and the fourth clamp (12); The detection device (20) is used to identify and mark the connection on the pole core laminate strip (3).

6. The battery core manufacturing equipment according to claim 5, characterized in that: The compression molding device (200) comprises: A forming device (13) and a 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 arranged at the end along the first direction; The forming device (13) is used to drive the fourth clamp (12) to squeeze the pole core lamination unit (21) toward a side close to the position adjustment device (15), and / or the position adjustment device (15) is used to squeeze the pole core lamination unit (21) toward a side close to the forming device (13) to form a group of the battery pole cores (19).

7. The battery core manufacturing equipment according to claim 6, characterized in that: include: A material removal device (11), wherein the material removal device (11) is used to remove the battery core (19).

8. The battery core manufacturing equipment according to claim 7, characterized in that: include: A chute device (300) is used to support and limit the pole core laminate strip (3), the pole core laminate unit (21) and the battery pole core (19).

9. The battery core manufacturing equipment according to claim 8, characterized in that: The chute device (300) comprises: A first chute device (6) and a second chute device (14), wherein the first chute device (6) is arranged above the second chute device (14); The first chute device (6) is used to limit the pole core laminate strip (3), the pole core laminate unit (21) and the battery pole core (19); the second chute device (14) is used to support the pole core laminate strip (3), the pole core laminate unit (21) and the battery pole core (19).

10. The battery core manufacturing equipment according to claim 9, characterized in that: include: a first pre-folding device (4) and a second pre-folding device (5); The first pre-folding device (4) is arranged on the first side of the pole core laminate material strip (3), and the second pre-folding device (5) is arranged on the second side. The first pre-folding device (4) and the second pre-folding device (5) are both provided with a plurality of folding sheets, and the plurality of folding sheets are used to pre-fold the pole core laminate material strip (3).

11. The battery core manufacturing equipment according to claim 10, characterized in that: The plurality of folded sheets are evenly distributed at equal intervals.

12. The battery core manufacturing equipment according to claim 11, characterized in that: include: A conveying device (1) and a pressing roller device (2), wherein the conveying device (1) and the pressing roller device (2) are used to transmit the pole core laminate strip (3) to one side of the cutting device (100).

13. A method for manufacturing a battery core, characterized in that: include: Cutting the polar core lamination strip (3) by a cutting device (100) to form a polar core lamination unit (21) on one side of the cutting device (100), and blocking the polar core lamination strip (3) on the other side of the cutting device (100); The pole core lamination unit (21) is compressed by a compression molding device (200) to form a group of battery pole cores (19).

14. The method according to claim 13, characterized in that The method of cutting the polar core laminate strip (3) by a cutting device (100) to form a polar core laminate unit (21) on one side of the cutting device (100) and blocking the polar core laminate strip (3) on the other side of the cutting device (100) comprises: The pole core laminate strip (3) is clamped by a first clamp (9), a second clamp (10), a third clamp (7) and a fourth clamp (12), and the pole core laminate strip (3) is cut by a cutting mechanism (8) to form the pole core laminate unit (21) on one side of the cutting mechanism (8), and the pole core laminate strip (3) is blocked on the other side of the cutting mechanism (8).

15. The method according to claim 14, characterized in that The pole core laminate strip (3) comprises a pole core diaphragm (30), a first pole piece (31) and a second pole piece (32), wherein the first pole piece (31) is arranged on one side of the pole core diaphragm (30), and the second pole piece (32) is arranged on the other side of the pole core diaphragm (30), and the first pole piece (31) and the second pole piece (32) are arranged in sequence and spaced apart, and a blank section is provided between the first pole piece (31) and the second pole piece (32), and the blank section is provided with a connection; The cutting mechanism (8) is used to cut the polar core laminate strip (3), comprising: The polar core lamination strip (3) is cut from the connection by the cutting mechanism (8) to form the polar core lamination unit (21).

16. The method according to claim 15, characterized in that Before the polar core lamination strip (3) is cut from the connection by the cutting mechanism (8) to form the polar core lamination unit (21), the method includes: The connection on the pole core laminate strip (3) is identified by a detection device (20).

17. The method according to claim 15, characterized in that After the polar core lamination strip (3) is cut from the connection by the cutting mechanism (8) to form the polar core lamination unit (21), the method comprises: The first clamp (9) and the third clamp (7) continue to clamp the core laminate strip (3), and the second clamp (10) and the fourth clamp (12) withdraw from clamping the core laminate strip (3).

18. The method according to claim 14, characterized in that The method of clamping the polar core laminate strip (3) by a first clamp (9), a second clamp (10), a third clamp (7) and a fourth clamp (12) comprises: The first clamp (9) and the second clamp (10) move toward the polar core laminate strip (3), and at the same time, the third clamp (7) and the fourth clamp (12) move toward the polar core laminate strip (3) to jointly clamp the polar core laminate strip (3).

19. The method according to claim 15, characterized in that The method of compressing the pole core lamination unit (21) by a compression molding device (200) to form a group of battery pole cores (19) comprises: The fourth clamp (12) is driven by the forming device (13) to extrude the pole core lamination unit (21) toward a side close to the position adjustment device (15), and / or the pole core lamination unit (21) is extruded toward a side close to the forming device (13) by the position adjustment device (15), so as to form a group of the battery pole cores (19).

20. The method according to claim 15, wherein Before the core lamination unit (21) is compressed by the compression molding device (200) to form a group of battery cores (19), the method includes: The first clamp (9) and the third clamp (7) continue to clamp the polar core laminate strip (3), and the second clamp (10) and the fourth clamp (12) withdraw from clamping the polar core laminate strip (3).

21. The method according to claim 19, wherein After the pole core lamination unit (21) is compressed by the compression molding device (200) to form a group of battery pole cores (19), the method includes: The battery core (19) is taken out through a blanking device (11).

22. The method according to claim 19, wherein include: The forming device (13) drives the fourth clamp (12) to exit the extrusion working state, and the position adjustment device (15) moves toward the pole core laminate strip (3) until the position adjustment device (15) abuts against the pole core laminate strip (3).

23. The method according to claim 22, characterized in that After the position adjustment device (15) abuts against the pole core lamination strip (3), it includes: The first clamp (9) and the third clamp (7) exit the state of clamping the pole core laminate strip (3).

24. The method according to claim 13, wherein The method comprises: cutting the polar core laminate strip (3) by a cutting device (100) to form a polar core laminate unit (21) on one side of the cutting device (100), and blocking the polar core laminate strip (3) on the other side of the cutting device (100). The pole core laminate strip (3) is pre-folded by a first pre-folding device (4) and a second pre-folding device (5).

25. The method according to claim 24, characterized in that Before the first pre-folding device (4) and the second pre-folding device (5) are used to pre-fold the core laminate strip (3), the method comprises: The pole core laminate strip (3) is transmitted to one side of the first pre-folding device (4) and the second pre-folding device (5) through a conveying device (1) and a pressure roller device (2).

26. A battery core, characterized in that: include: A multi-layer pole piece, the multi-layer pole piece comprising at least one first pole piece (31) and at least one second pole piece (32); The first pole piece (31) and the second pole piece (32) are arranged in a stacked manner with an interval.

27. The battery core according to claim 26, characterized in that: include: A core diaphragm (30), wherein the core diaphragm (30) is located between the first pole piece (31) and the second pole piece (32), and at least one end of the adjacent first pole piece (31) and the second pole piece (32) are connected through the core diaphragm (30).

28. The battery core according to any one of claims 26 to 27, characterized in that: The first pole piece (31) is a positive pole piece or a negative pole piece, and the second pole piece (30) is a positive pole piece or a negative pole piece.

29. A battery, characterized in that: A battery core comprising the battery core according to any one of claims 26 to 28.

30. An electric energy device, characterized in that: Including the battery of claim 29.

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