Battery pole piece material box

Abstract

The utility model discloses a battery pole piece material box, and relates to the technical field of battery manufacturing equipment. The device comprises a bottom plate; the two side plates are oppositely arranged and connected to the bottom plate in a left-right sliding mode; the two rear blocking pieces are connected to the inner sides of the two side plates in a front-back sliding mode, and the inner side faces of the two rear blocking pieces are detachably connected with first teflon plates; and the two front blocking pieces are connected to the inner sides of the two side plates in a front-back sliding mode and located in front of the two rear blocking pieces respectively, and the back faces of the two front blocking pieces are detachably connected with second teflon plates. Friction between the edge of the pole piece and the inner wall of the material box can be reduced, and the situation that the edge of the pole piece is prone to being damaged and generating metal filings is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing equipment technical field, especially relate to a battery pole piece material box. BACKGROUND

[0002] The cell assembly process of lithium ion battery has two combined modes of lamination and winding, the lamination process is that the positive and negative pole pieces and the diaphragm are laminated together according to a certain order to form a cell structure. When the lithium ion battery is laminated, the positive and negative pole pieces are usually contained in a container (such as a stainless steel disc or a material box) to transfer the pole pieces between different processes, and finally the pole pieces in the container are placed in the lamination station of the laminator for lamination process. However, the edge of the pole piece is easy to be damaged and generate metal chips due to friction with the inner wall of the container during containing, arranging and transferring, the damaged pole piece and the generated metal chips are laminated into the cell, which causes the risk of short circuit of the cell and reduces the qualified rate of the cell product. SUMMARY

[0003] The utility model solves the technical problem to provide a battery pole piece material box, reduce the friction of the edge of the pole piece and the inner wall of the material box, and improve the condition that the edge of the pole piece is easy to be damaged and generate metal chips.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A battery pole piece material box comprises a bottom plate, two oppositely arranged side plates slidably connected to the bottom plate, two rear stop pieces slidably connected to the inner sides of the two side plates, respectively, and first Teflon plates detachably connected to the inner sides of the two rear stop pieces, and two front stop pieces slidably connected to the inner sides of the two side plates, respectively, and located in front of the two rear stop pieces, and second Teflon plates detachably connected to the backs of the two front stop pieces.

[0006] As a further elaboration of the above technical scheme:

[0007] The bottom plate is provided with a plurality of first waist-shaped holes arranged along the X-axis direction; the bottom of each side plate is provided with a screw hole corresponding to the first waist-shaped hole, and the side plate and the bottom plate are connected by bolts passing through the screw hole and the first waist-shaped hole in sequence, so that the side plate can slide relative to the bottom plate.

[0008] The two side plates are each provided with a plurality of second waist-shaped holes arranged along the Y-axis direction; each rear stop piece comprises a rear stop plate in the shape of L, the rear stop plate is provided with a screw hole corresponding to the second waist-shaped hole, and the rear stop plate and the side plate are connected by bolts passing through the screw hole and the second waist-shaped hole in sequence, so that the rear stop plate can slide relative to the side plate.

[0009] One of the front stoppers comprises a front baffle, and the other front stopper comprises an angle bracket and a front stop block, the front baffle and the angle bracket are both provided with screw holes corresponding to the second waist-shaped hole, the front baffle and the side plate are connected through bolts sequentially penetrating the screw holes and the second waist-shaped hole, and the angle bracket and the side plate are connected through bolts sequentially penetrating the screw holes and the second waist-shaped hole, so that the front baffle can slide relative to the side plate, and the angle bracket can slide relative to the side plate.

[0010] The angle bracket is provided with a third waist-shaped hole arranged along the X-axis direction, the front stop block is provided with a screw hole corresponding to the third waist-shaped hole, and the front stop block and the angle bracket are connected through bolts sequentially penetrating the screw hole and the third waist-shaped hole, so that the front stop block can slide relative to the angle bracket.

[0011] Compared with the prior art, the utility model realizes at least the following beneficial effects:

[0012] The bottom plate, the two rear stoppers and the two front stoppers can form a containing space for containing the pole piece, the first Teflon plate and the second Teflon plate are arranged on the rear stopper and the front stopper, when the pole piece is contained, the friction force generated by the mutual contact between the edge of the pole piece and the first Teflon plate and the second Teflon plate is small, the situation that the edge of the pole piece is easily damaged and metal chips are generated can be improved, and therefore the safety of the battery cell is improved, and the qualified rate of the finished battery cell is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] One or more embodiments of the utility model will be described by way of example only, with reference to the drawings, in which:

[0014] Figure 1 It is a structural schematic view of the utility model embodiment;

[0015] Figure 2 It is an explosion view of the utility model embodiment;

[0016] Figure 3 It is a top view of the utility model embodiment.

[0017] The reference signs in the drawings are as follows: 1, bottom plate; 11, first waist-shaped hole; 12, through hole; 2, side plate; 21, second waist-shaped hole; 3, rear stopper; 4, front stopper; 5, first Teflon plate; 6, second Teflon plate; 7, rear baffle; 8, front baffle; 9, angle bracket; 91, third waist-shaped hole; 10, front stop block; 20, screw hole; 30, special-shaped pole piece. DETAILED DESCRIPTION

[0018] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the present application can be realized in various forms, and should not be understood as being limited to the embodiments described herein. The embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] like Figures 1-2 As shown in the embodiment of this utility model, a battery electrode box includes a base plate 1, two side plates 2, two rear baffles 3, and two front baffles 4. The two side plates 2 are arranged opposite to each other and are slidably connected to the base plate 1. The two rear baffles 3 are slidably connected to the inner sides of the two side plates 2, and the inner sides of the two rear baffles 3 are detachably connected to a first Teflon plate 5. The two front baffles 4 are slidably connected to the inner sides of the two side plates 2, and are located in front of the two rear baffles 3. The back sides of the two front baffles 4 are detachably connected to a second Teflon plate 6.

[0021] When this utility model is used, a space for holding electrode sheets can be formed between the base plate 1, the two rear baffles 3, and the two front baffles 4. The Teflon plate, namely polytetrafluoroethylene (PTFE) plate, has characteristics such as a low coefficient of friction. By setting the first Teflon plate 5 and the second Teflon plate 6 on the rear baffles 3 and the front baffles 4, when the electrode sheets are placed in the material box, the friction generated by the contact between the edge of the electrode sheet and the first Teflon plate 5 and the second Teflon plate 6 is small, which can improve the situation of electrode edge damage and metal shavings, thereby improving the safety of the battery cell and ensuring the qualification rate of the finished battery cell.

[0022] In one embodiment of this utility model, the base plate 1 has multiple first oblong holes 11 arranged along the X-axis; the bottom of both side plates 2 are provided with screw holes 20 corresponding to the first oblong holes 11. The side plates 2 and the base plate 1 are connected by bolts passing through the screw holes 20 and the first oblong holes 11 in sequence, so that the side plates 2 can slide relative to the base plate 1. The positions of the two side plates 2 can be adjusted left and right according to the length of the electrode. Finally, by setting nuts at the protruding ends of the bolts and tightening the nuts, the side plates 2 and the base plate 1 can be firmly connected, thereby limiting the left and right movement of the electrode.

[0023] In one embodiment of this utility model, both side plates 2 have multiple second waist-shaped holes 21 arranged along the Y-axis direction; both rear baffles 3 include L-shaped rear baffles 7, and the rear baffles 7 are provided with screw holes 20 corresponding to the second waist-shaped holes 21. The rear baffles 7 and the side plates 2 are connected by bolts that pass through the screw holes 20 and the second waist-shaped holes 21 in sequence, so that the rear baffles 7 can slide relative to the side plates 2.

[0024] Furthermore, one of the front stop components 4 includes a front baffle 8, and the other front stop component 4 includes a corner bracket 9 and a front stop block 10. Both the front baffle 8 and the corner bracket 9 are provided with screw holes 20 corresponding to the second oblong hole 21. Bolts are sequentially passed through the screw holes 20 and the second oblong hole 21 between the front baffle 8 and the side plate 2, and between the corner bracket 9 and the side plate 2, allowing the front baffle 8 and the corner bracket 9 to slide relative to the side plate 2. The positions of the rear baffle 7, the front baffle 8, and the corner bracket 9 can be adjusted back and forth according to the width of the electrode. Finally, by setting nuts at the protruding ends of the bolts and tightening the nuts, the rear baffle 7, the front baffle 8, and the corner bracket 9 are securely connected to the side plate 2, thereby limiting the front and rear movement of the electrode.

[0025] Furthermore, the corner bracket 9 has a third oblong hole 91 arranged along the X-axis, and the front stop 10 has a screw hole 20 corresponding to the third oblong hole 91. The front stop 10 and the corner bracket 9 are connected by bolts passing through the screw hole 20 and the third oblong hole 91 in sequence, so that the front stop 10 can slide relative to the corner bracket 9.

[0026] likeFigure 3 As shown, by setting another front stop 4, this utility model can be used not only for holding ordinary electrode sheets, but also for holding some irregularly shaped electrode sheets 30 (such as L-shaped ones) of battery cells. The left and right positions of the front stop 10 on the corner bracket 9 can be further adjusted, thereby limiting the irregularly shaped electrode sheet 30.

[0027] In one embodiment of the present invention, a through hole 12 is provided in the middle of the base plate 1. The through hole 12 is used for the electrode lifting mechanism to pass through, so that when the material taking mechanism takes away an electrode, the electrode lifting mechanism can easily lift the electrode in the material box.

[0028] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A battery pole piece magazine, characterized by, The utility model relates to a kind of movable display stand, including: Bottom plate; Two opposite side plates, two The side plate is slidably connected on the bottom plate; Two rear stops, two The rear stop is slidably connected in the inner side of two side plates respectively, and the inner side of two The rear stop is detachably connected with first Teflon plate; Two front stops, two The front stop is slidably connected in the inner side of two side plates respectively, and is located in two The rear stop front respectively, and the back of two The front stop is detachably connected with second Teflon plate.

2. The battery pole piece magazine of claim 1, wherein: The bottom plate is opened with multiple first waist-shaped holes arranged along X-axis direction;Two The side plate bottom is equipped with screw hole corresponding with first waist-shaped hole, and the side plate is slidably connected with the bottom plate by bolt sequentially passing through screw hole and first waist-shaped hole.

3. The battery pole piece magazine of claim 1, wherein: Two The side plate is opened with multiple second waist-shaped holes arranged along Y-axis direction;Two The rear stop includes rear baffle of L shape, and the rear baffle is equipped with screw hole corresponding with second waist-shaped hole, and the rear baffle is slidably connected with the side plate by bolt sequentially passing through screw hole and second waist-shaped hole.

4. The battery pole piece magazine of claim 3, wherein: One of The front stop includes front baffle, and another The front stop includes angle support and front block, and the front baffle and angle support are equipped with screw hole corresponding with second waist-shaped hole, and the front baffle is slidably connected with the side plate, and the angle support is slidably connected with the side plate by bolt sequentially passing through screw hole and second waist-shaped hole.

5. The battery pole piece magazine of claim 4, wherein: The angle support is opened with third waist-shaped hole arranged along X-axis direction, and the front block is equipped with screw hole corresponding with third waist-shaped hole, and the front block is slidably connected with the angle support by bolt sequentially passing through screw hole and third waist-shaped hole.

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