Pole piece providing device and lamination equipment

Abstract

The present application relates to a pole piece providing device and a stacking device, and belongs to the field of battery manufacturing technology. The pole piece providing device includes: a conveyor line for conveying pole pieces in a first placement state; a pole piece flipping mechanism, which is arranged on the upper side of the conveyor line, and the pole piece flipping mechanism switches between a first position and a second position to grab the pole piece in the first placement state from the conveyor line and adjust the pole piece to the second placement state. The present application also proposes a stacking device, including the pole piece providing device. The pole piece providing device and the stacking device reduce the manufacturing cost of the battery cell and improve the stacking efficiency of the battery cell.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a pole piece providing device and a pole piece stacking device. Background Art

[0002] With the rapid development of the new energy field, the safety performance of laminated batteries has become increasingly important, and the cell structure of laminated batteries is also constantly innovating. At present, there is a new type of laminated battery, the cell includes a stacked positive electrode sheet and a negative electrode sheet, the electrode sheets of the same polarity are type A electrodes in the first placement state, and type B electrodes in the second placement state, and the type A electrodes and type B electrodes are alternately fed into the stacking mechanism to be stacked with the electrode sheets of the other polarity to form a cell.

[0003] In order to stack and form this type of battery cell, improvements can be made to the electrode feeding part, and type A and type B electrodes are alternately provided on the conveyor line, and the transfer mechanism directly grabs the corresponding electrode and feeds it to the stacking mechanism; or the transfer mechanism grabs the electrode and then switches the arrangement of the electrode to achieve the conversion from type A electrode to type B electrode. However, for the entire production line, there is a large gap between the electrode feeding rhythm and the rhythm of switching the electrode placement state. Since it takes a long time to switch the electrode placement state, the excess electrode of the incoming material can only be treated as waste for waste disposal while waiting for the electrode to switch the placement state, resulting in electrode waste, increased manufacturing cost of the battery cell, and low overall stacking efficiency. Utility Model Content

[0004] To this end, the present application proposes a pole piece providing device and a stacking device, which can quickly switch the placement state of the pole piece through a pole piece flipping mechanism, alleviate the phenomenon of wasting pole pieces due to the rhythm of switching the pole piece placement state, thereby reducing the manufacturing cost of the battery cell and having a higher stacking efficiency.

[0005] The electrode providing device of the first aspect embodiment of the present application includes: a conveyor line for conveying the electrode in a first placement state; a electrode flipping mechanism, which is arranged on the upper side of the conveyor line, and the electrode flipping mechanism switches between a first position and a second position to grab the electrode in the first placement state from the conveyor line and adjust the electrode to the second placement state.

[0006] Optionally, the pole piece flipping mechanism includes: a bracket; a pole piece flap, mounted on the bracket and rotatable around a first axis; a flipping drive, mounted on the bracket and used to drive the pole piece flap to rotate around the first axis; wherein the pole piece flap is configured to grab the pole piece and drive the pole piece to rotate around the first axis to adjust the pole piece from a first placement state to a second placement state.

[0007] Optionally, the first axis is arranged parallel to a feeding plane of the conveyor line.

[0008] Optionally, the pole piece flip plate is a vacuum suction plate.

[0009] Optionally, the pole piece flipping mechanism further comprises: a rotating frame, which is rotatably mounted on the bracket around the first axis, and the pole piece flip plate is mounted on the rotating frame.

[0010] Optionally, the electrode providing device also includes: a transfer mechanism, which is used to grab the electrode in the first placement state from the conveyor line, or grab the electrode in the second placement state from the electrode flipping mechanism, so as to alternately provide the electrode in the first placement state and the electrode in the second placement state to the stacking mechanism.

[0011] Optionally, the conveyor line has a material unloading area, and the transfer mechanism is docked with the material unloading area. When the pole piece flipping mechanism is in the second position, the pole piece flipping mechanism is located on the upper side of the material unloading area to provide the pole piece in the second placement state from the upper side of the material unloading area.

[0012] Optionally, the transfer mechanism switches between a material picking position and a material unloading position; when the transfer mechanism is in the material picking position, it is used to grab the pole piece in the first placement state from the conveyor line or grab the pole piece in the second placement state from the pole piece flipping mechanism; when the transfer mechanism is in the material unloading position, the transfer mechanism is used to provide the pole piece to the stacking mechanism.

[0013] Optionally, the transfer mechanism includes: a rotating drive member; a transfer jaw installed on the execution end of the rotating drive member, and the rotating drive member is used to drive the transfer jaw to rotate around a second axis, and the second axis is perpendicular to the feeding plane of the conveyor line.

[0014] The stacking equipment of the second aspect embodiment of the present application applies the pole piece providing device described in the first aspect embodiment of the present application, including: a stacking mechanism, used to alternately stack a first pole piece and a second pole piece to form a battery cell, the first pole piece and the second pole piece have opposite polarities; a first pole piece providing device, using the pole piece providing device to provide a first pole piece.

[0015] Optionally, the lamination equipment comprises: a second pole piece providing device, which is used to provide the second pole piece.

[0016] Compared with the prior art, the above solution has the following beneficial effects:

[0017] The electrode providing device of the embodiment of the present application includes an electrode flipping mechanism. When it is necessary to provide an electrode in a first placement state, the electrode in the first placement state is provided by a conveyor line, and the transfer mechanism grabs the electrode in the first placement state from the conveyor line and transfers it to the stacking mechanism. When it is necessary to provide an electrode in a second placement state, the electrode flipping mechanism grabs the electrode on the conveyor line and adjusts it from the first placement state to the second placement state, and the electrode in the second placement state is provided by the electrode flipping mechanism. The transfer mechanism grabs the electrode in the second placement state from the electrode flipping mechanism and transfers it to the stacking mechanism, thereby realizing the alternate provision of the electrode in the first placement state and the electrode in the second placement state to the stacking mechanism. Since the electrode flipping mechanism can quickly adjust the electrode from the first placement state to the second placement state, it can alleviate the phenomenon of excess electrode waste caused by waiting for the switching of the electrode placement state, reduce the manufacturing cost of the battery cell, and improve the stacking efficiency of the battery cell.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of a state of the pole piece providing device provided in an embodiment of the present application (the pole piece flipping mechanism is in the second position, and the transfer mechanism is in the material taking position);

[0021] Figure 2 A schematic structural diagram of another state of the pole piece providing device provided in an embodiment of the present application (the pole piece flipping mechanism is in the first position, and the transfer mechanism is not in the material taking position);

[0022] Figure 3 A schematic structural diagram of a pole piece flipping mechanism of a pole piece providing device provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the structure of a pole piece corresponding to the pole piece providing device provided in an embodiment of the present application;

[0024] Figure 5 and Figure 6 Schematic diagrams of a first placement state and a second placement state of a pole piece corresponding to a pole piece providing device provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of a lamination device provided in an embodiment of the present application.

[0026] Icons: 100-pole piece providing device; 110-conveyor line; 111-unloading area; 120-pole piece turning mechanism; 121-bracket; 122-rotating frame; 1221-rotating part; 1222-installing frame; 123-pole piece flap; 124-turning drive member; 125-bearing; 130-transfer mechanism; 131-rotating drive member; 132-transfer clamp; 200-stacking equipment; 210-stacking mechanism; 211-stacking station; 212-first deviation correction station; 213-second deviation correction station; 214-stacking robot; 220-first pole piece providing device; 230-second pole piece providing device; 300-pole piece; 310-first side; 320-second side. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] In the related art, the traditional stacking equipment alternately stacks the positive electrode sheets, the negative electrode sheets and the separators to form a battery cell. For a new type of battery cell, in which the electrode sheets of one polarity have multiple specifications, it is necessary to alternately stack the same-sex electrode sheets of multiple specifications to achieve this. However, considering that there is a large gap between the beat of providing electrode sheets of different specifications and the beat of electrode sheet feeding, and since it takes a long time to switch the specifications of the electrode sheets, the excess electrode sheets of the incoming materials can only be treated as waste sheets for waste disposal while waiting for the specifications of the electrode sheets to be switched, resulting in waste of electrode sheets, increasing the manufacturing cost of the battery cell, and the overall stacking efficiency is also very low.

[0030] The inventor has found through research that in actual production, the so-called multiple specifications of the same pole pieces are actually realized by different placement states of the same pole piece, such as front placement, back placement, etc. In other words, the placement state of the pole piece can be changed before the pole piece enters the stacking mechanism, and the time required for switching the placement state of the pole piece can be shortened as much as possible, thereby overcoming the above-mentioned phenomenon of waste discharge of excess pole pieces due to inconsistent beats, thereby improving stacking efficiency and reducing the manufacturing cost of battery cells.

[0031] Based on the above problems, the present application proposes a pole piece providing device and a stacking device, which improves the unloading point of the conveyor line and provides pole pieces in different placement states to the stacking mechanism without affecting the pole piece feeding rhythm, thereby having higher stacking efficiency and lower battery cell manufacturing cost.

[0032] like Figure 1 and Figure 2 As shown, the electrode providing device 100 of some embodiments of the present application includes a conveyor line 110 and a electrode flipping mechanism 120, the conveyor line 110 is used to convey the electrode 300 in a first placement state, the electrode flipping mechanism 120 is arranged on the upper side of the conveyor line 110, and the electrode flipping mechanism 120 switches between a first position and a second position to adjust the electrode 300 from the first placement state to the second placement state.

[0033] When the pole piece flipping mechanism 120 is located at the first position, the conveying line 110 provides the pole piece 300 in the first placement state; when the pole piece flipping mechanism 120 is located at the second position, the pole piece flipping mechanism 120 provides the pole piece 300 in the second placement state.

[0034] like Figure 4 , Figure 5 and Figure 6 As shown, along the thickness direction of the pole piece 300, the two sides of the pole piece 300 are respectively the first side 310 and the second side 320. When the pole piece 300 is in the first placement state with the first side 310 facing upward, the pole piece 300 is now an A-type pole piece. When the pole piece 300 is in the second placement state with the second side 320 facing upward, the pole piece 300 is now a B-type pole piece. The positions of the pole ears of the A-type pole piece and the B-type pole piece are different. In some embodiments of the present application, the pole piece 300 is a positive pole piece; in other embodiments, the pole piece 300 may also be a negative pole piece; or, the pole piece 300 has the same profile in the first placement state and the second placement state; or, the A-type pole piece and the B-type pole piece may be two types of pole pieces, etc., which can be flexibly adjusted according to the specific process.

[0035] The electrode providing device 100 of the embodiment of the present application includes a electrode flipping mechanism 120. When a electrode 300 in a first placement state is required, the electrode 300 in the first placement state is provided by the conveyor line 110, and the transfer mechanism 130 grabs the electrode 300 in the first placement state from the conveyor line 110 and transfers it to the stacking mechanism 210. When a electrode 300 in a second placement state is required, the electrode flipping mechanism 120 grabs the electrode 300 on the conveyor line 110 and adjusts it from the first placement state to the second placement state, and the electrode 300 in the second placement state is provided by the electrode flipping mechanism 120, and the transfer mechanism 130 grabs the electrode 300 in the second placement state from the electrode flipping mechanism 120 and transfers it to the stacking mechanism 210, thereby realizing the alternating provision of the electrode 300 in the first placement state and the electrode 300 in the second placement state to the stacking mechanism 210. Since the pole piece flipping mechanism 120 can quickly adjust the pole piece 300 from the first placement state to the second placement state, the phenomenon of excess pole piece discharge due to waiting for switching the placement state of the pole piece 300 can be alleviated, thereby reducing the manufacturing cost of the battery cell and improving the stacking efficiency of the battery cell.

[0036] The conveyor line 110 conveys the electrode 300 along the first direction X. The end of the conveyor line 110 has a material unloading area 111. The transfer mechanism 130 is connected to the material unloading area 111. When the electrode flipping mechanism 120 is in the second position, the electrode flipping mechanism 120 is located on the upper side of the material unloading area 111 to provide the electrode 300 in a second placement state from the upper side of the material unloading area 111.

[0037] like Figure 3 As shown, in some embodiments of the present application, the pole piece flipping mechanism 120 includes a bracket 121, a pole piece flipping plate 123 and a flipping driving member 124, the pole piece flipping plate 123 is rotatably mounted on the bracket 121 around the first axis P, and the flipping driving member 124 is mounted on the bracket 121 for driving the pole piece flipping plate 123 to rotate around the first axis P. The pole piece flipping plate 123 is configured to grab the pole piece 300 and drive the pole piece 300 to rotate around the first axis P, so as to adjust the pole piece 300 from the first placement state to the second placement state.

[0038] The flipping drive 124 may be a motor or other forms of drive; one side of the pole piece flip plate 123 in the thickness direction is the gripping side, which may be provided with a clamping claw or the pole piece 300 may be placed and gripped by vacuum adsorption.

[0039] Through this arrangement, the state of the pole piece 300 can be adjusted quickly and reliably, and the rhythm of the lamination mechanism 210 can be adapted.

[0040] In some embodiments of the present application, the first axis P is arranged parallel to the feeding plane (ie, the XOY plane) of the conveyor line 110 .

[0041] The difference between the pole piece 300 in the first placement state and the pole piece 300 in the second placement state is the front placement and the back placement, that is, the aforementioned pole piece A and the pole piece B. Through this arrangement, the pole piece 300 in the forward placement can be quickly switched to the reverse placement state.

[0042] In some embodiments of the present application, the pole piece flip plate 123 is disposed above the conveyor line 110. When the pole piece flip mechanism 120 is in the first position, the gripping side of the pole piece flip plate 123 is disposed downward along the vertical direction Z to face the conveyor line 110, so as to be ready to grip the first side 310 of the pole piece 300; when the pole piece flip mechanism 120 is in the second position, the gripping side of the pole piece flip plate 123 is disposed upward along the vertical direction Z to expose the second side 320 of the pole piece 300, and the rotation range of the pole piece flip plate 123 is 180°.

[0043] In other embodiments, if the pole piece 300 in the first placement state and the pole piece 300 in the second placement state are obtained by rotating around a vertical axis, the first axis P can also be perpendicular to the feeding plane, and the rotation range of the pole piece flap 123 can also be other angles, which can be flexibly adjusted depending on the specific structure of the pole piece 300.

[0044] In some embodiments of the present application, the pole piece flip plate 123 is a vacuum suction plate. Specifically, the gripping side has a suction surface.

[0045] With this arrangement, the first side 310 of the pole piece 300 can be reliably grasped while occupying a smaller grasping space.

[0046] In other embodiments, a clamping claw may also be provided on one side of the pole piece flap 123 in the thickness direction.

[0047] In some embodiments of the present application, the pole piece flipping mechanism 120 further includes a rotating frame 122 rotatably mounted on the bracket 121 around the first axis P, and the pole piece flip plate 123 is mounted on the rotating frame 122 .

[0048] By providing the rotating frame 122 , the pole piece flap 123 can be rotatably mounted on the bracket 121 .

[0049] Specifically, the rotating frame 122 includes a rotating part 1221 and a mounting frame 1222. The rotating part 1221 is rotatably mounted on the bracket 121 through linear bearings 125 on both sides. The mounting frame 1222 is used to install the pole piece flip plate 123. Along the direction perpendicular to the first axis P, the rotating part 1221 is located on one side of the mounting frame 1222.

[0050] like Figure 1As shown, in some embodiments of the present application, when the pole piece flipping mechanism 120 is in the second position, the pole piece 300 in the second placement state grasped by the pole piece flipping mechanism 120 is located in the unloading area 111 .

[0051] The transfer mechanism 130 is used to grab the pole piece 300 in the first placement state from the conveyor line 110 or grab the pole piece 300 in the second placement state from the pole piece flipping mechanism 120 to alternately provide the pole piece 300 in the first placement state and the pole piece 300 in the second placement state to the stacking mechanism 210 .

[0052] like Figure 2 As shown, when the pole piece flipping mechanism 120 is in the first position, the pole piece flip plate 123 exposes the unloading area 111 so that the transfer mechanism 130 can grab the pole piece 300 in the first placement state; when the pole piece flipping mechanism 120 is in the second position, the pole piece flip plate 123 flips to the upper side of the unloading area 111, covering the pole piece 300 in the first placement state on the conveyor line 110, and providing the pole piece 300 in the second placement state for the transfer mechanism 130 to grab.

[0053] Through this form, the transfer mechanism 130 can grasp the pole piece 300 in the first placement state or the second placement state at the same position, thereby simplifying the moving stroke of the transfer mechanism 130 .

[0054] In other embodiments, the transfer mechanism 130 may also have two loading positions to respectively grab the pole pieces 300 in the first placement state and the second placement state.

[0055] In some embodiments of the present application, the transfer mechanism 130 switches between a material picking position and a material unloading position. When the transfer mechanism 130 is in the material picking position, it is used to grab the pole piece 300 in the first placement state from the conveyor line 110 or grab the pole piece 300 in the second placement state from the pole piece flipping mechanism 120; when the transfer mechanism 130 is in the material unloading position, the transfer mechanism 130 is used to dock with the lamination mechanism 210 to provide the pole piece 300 to the lamination mechanism 210.

[0056] The transfer mechanism 130 can be a common three-axis manipulator or a six-axis manipulator. The space required for the pole piece flipping mechanism 120 to switch the pole piece 300 from the first placement state to the second placement state refers to the space required for the pole piece flipping plate 123 to grab the pole piece 300 and flip it from the first position to the second position, that is, the space required for the pole piece flipping plate 123 to rotate 180° around the first axis P. When the transfer mechanism 130 is in the material picking position, it is used to dock from the unloading area 111 to grab the pole piece 300.

[0057] With this arrangement, the travel range of the transfer mechanism 130 for grabbing the pole piece 300 can be shortened, so as to reliably grab the pole piece 300 .

[0058] In some embodiments of the present application, the transfer mechanism 130 includes a rotating drive member 131 and a transfer clamp 132. The transfer clamp 132 is installed at the execution end of the rotating drive member 131. The rotating drive member 131 is used to drive the transfer clamp 132 to rotate around a second axis (not shown in the figure), and the second axis is perpendicular to the feeding plane (i.e., the XOY plane) of the conveyor line 110.

[0059] That is to say, when the feeding plane XOY of the conveyor line 110 is parallel to the horizontal plane, the second axis extends along the vertical direction Z. The rotating drive member 131 can be a motor or other driving member that realizes the rotation function. A rotating arm is installed at the execution end of the rotating drive member 131, and the transfer clamp 132 is installed on the rotating arm. In some embodiments of the present application, the transfer clamp 132 is a vacuum suction cup; in other embodiments, the transfer clamp 132 can also be an electromagnetic clamp or a mechanical clamp.

[0060] In other embodiments, the movement space of the pole piece flap 123 can also be avoided by increasing the stroke of the transfer clamp 132 along the vertical direction Z.

[0061] like Figure 7 As shown, the stacking device 200 of some embodiments of the present application includes a stacking mechanism 210, a first pole piece providing device 220 and a second pole piece providing device 230. The stacking mechanism 210 is used to alternately stack the first pole piece and the second pole piece to form a battery cell, and the polarities of the first pole piece and the second pole piece are opposite.

[0062] The stacking mechanism 210 includes a stacking station 211, a first deflection correction station 212, a second deflection correction station 213 and a stacking robot 214. The first deflection correction station 212 is used to receive the first pole piece provided by the first pole piece providing device 220, and the second deflection correction station 213 is used to receive the second pole piece provided by the second pole piece providing device 230. The stacking robot 214 is used to grab the first pole piece and the second pole piece from the first deflection correction station 212 and the second deflection correction station 213 in turn, and cooperate with the diaphragm and stack to form a battery cell.

[0063] In some embodiments of the present application, the first pole piece providing device 220 applies the pole piece providing device 100 of the embodiment of the present application, that is, the pole piece providing device 100 is used to provide the first pole piece to the first deviation correction station 212 .

[0064] As an example form, the first electrode piece is a positive electrode piece and has two specifications of a first placement state and a second placement state. The first electrode piece providing device 220 alternately provides the first electrode piece in the first placement state and the second placement state to the first correction station 212. The first electrode piece in the first placement state, the second electrode piece, the first electrode piece in the second placement state and the second electrode piece are stacked in sequence with the diaphragm to form a new type of battery cell.

[0065] In other embodiments, the first electrode plate may also be a negative electrode plate.

[0066] In some embodiments of the present application, the second pole piece providing device 230 also applies the pole piece providing device 100 of the embodiment of the present application, that is, another pole piece providing device 100 is used to provide the second pole piece to the second deviation correction station 213.

[0067] As an example form, the first pole piece is a positive pole piece, and the second pole piece is a negative pole piece. The first pole piece and the second pole piece both have two specifications of a first placement state and a second placement state. The first pole piece providing device 220 alternately provides the first pole piece in the first placement state and the second placement state to the first correction station 212, and the second pole piece providing device 230 alternately provides the first pole piece in the first placement state and the second placement state to the second correction station 213 to form another new type of battery cell.

[0068] The working principle of the electrode providing device 100 of the embodiment of the present application is as follows:

[0069] The conveyor line 110 conveys the electrode 300 in the first placement state along the first direction X, and the electrode flipping mechanism 120 is maintained at the first position and avoids the unloading area 111;

[0070] If the electrode piece 300 in the first placement state needs to be provided, the transfer mechanism 130 directly grabs the electrode piece 300 on the conveyor line 110 from the unloading area 111 ;

[0071] If a pole piece 300 in a second placement state is required, the pole piece flipping mechanism 120 grabs the first pole piece 300 conveyed by the lower conveyor line 110 at the first position, and flips it to the second position so that the second side 320 of the pole piece 300 is set upward, and the transfer mechanism 130 grabs the pole piece 300 on the pole piece flip plate 123.

[0072] The working principle of the lamination device 200 of the embodiment of the present application is as follows:

[0073] The first electrode piece providing device 220 uses the electrode piece providing device 100, and the transfer mechanism 130 alternately provides the first electrode pieces in the first placement state and the second placement state to the first deviation correction station 212;

[0074] The second pole piece providing device 230 provides the second pole piece through the conveyor line, and the feeding mechanism always provides the second pole piece in the same placement state to the second deviation correction station 213;

[0075] The stacking robot 214 is used to grab the first pole piece and the second pole piece from the first deviation correcting station 212 and the second deviation correcting station 213 in turn, and stack them together with the diaphragm to form a battery cell.

[0076] The electrode providing device 100 and the stacking device 200 according to the embodiment of the present application can be used to stack and form a new type of battery cell, thereby improving the stacking efficiency of the battery cell and reducing the manufacturing cost of the battery cell.

[0077] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0078] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pole piece providing device (100), characterized in that: include: A conveying line (110) for conveying the electrode piece (300) in a first placement state; A pole piece flipping mechanism (120) is arranged on the upper side of the conveyor line (110), and the pole piece flipping mechanism (120) switches between a first position and a second position to grab a pole piece (300) in a first placement state from the conveyor line (110) and adjust the pole piece (300) to a second placement state.

2. The pole piece providing device (100) according to claim 1, characterized in that: The pole piece flipping mechanism (120) comprises: Bracket (121); A pole piece flap (123) is rotatably mounted on the bracket (121) around a first axis; A flip driving member (124), mounted on the bracket (121), and used for driving the pole piece flip plate (123) to rotate around the first axis; The pole piece flip plate (123) is configured to grab the pole piece (300) and drive the pole piece (300) to rotate around the first axis, so as to adjust the pole piece (300) from the first placement state to the second placement state.

3. The pole piece providing device (100) according to claim 2, characterized in that: The first axis is arranged parallel to the feeding plane of the conveying line (110).

4. The pole piece providing device (100) according to claim 2, characterized in that: The pole piece flip plate (123) is a vacuum suction plate.

5. The pole piece providing device (100) according to claim 2, characterized in that: The pole piece flipping mechanism (120) further comprises: The rotating frame (122) is rotatably mounted on the bracket (121) around the first axis, and the pole piece flap (123) is mounted on the rotating frame (122).

6. The pole piece providing device (100) according to claim 1, characterized in that: The electrode providing device (100) further comprises: The transfer mechanism (130) is used to grab the pole piece (300) in the first placement state from the conveyor line (110), or grab the pole piece (300) in the second placement state from the pole piece flipping mechanism (120), so as to alternately provide the pole piece (300) in the first placement state and the pole piece (300) in the second placement state to the lamination mechanism.

7. The pole piece providing device (100) according to claim 6, characterized in that: The conveyor line (110) has a material unloading area (111), and the transfer mechanism (130) is connected to the material unloading area (111). When the pole piece flipping mechanism (120) is in the second position, the pole piece flipping mechanism (120) is located on the upper side of the material unloading area (111) to provide the pole piece (300) in the second placement state from the upper side of the material unloading area (111).

8. The pole piece providing device (100) according to claim 6, characterized in that: The transfer mechanism (130) switches between a material taking position and a material unloading position; When the transfer mechanism (130) is in the material picking position, it is used to grab the pole piece (300) in the first placement state from the conveyor line (110) or grab the pole piece (300) in the second placement state from the pole piece flipping mechanism (120); When the transfer mechanism (130) is in the unloading position, the transfer mechanism (130) is used to provide the pole piece (300) to the lamination mechanism.

9. The pole piece providing device (100) according to claim 8, characterized in that: The transfer mechanism (130) comprises: A rotating driving member (131); The transfer clamp (132) is installed on the execution end of the rotating drive member (131), and the rotating drive member (131) is used to drive the transfer clamp (132) to rotate around a second axis, and the second axis is perpendicular to the feeding plane of the conveyor line (110).

10. A lamination device (200) using the pole piece providing device (100) according to any one of claims 1 to 9, characterized in that: include: A stacking mechanism (210) is used for alternately stacking a first pole piece and a second pole piece to form a battery core, wherein the first pole piece and the second pole piece have opposite polarities; A first pole piece providing device (220) uses the pole piece providing device (100) to provide a first pole piece.

11. The lamination device (200) according to claim 10, characterized in that: include: A second pole piece providing device (230) uses the pole piece providing device (100) to provide a second pole piece.

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