Flow equalizing plate for reducing lithium battery copper foil seersucker

Abstract

The utility model discloses a flow equalizing plate for reducing lithium battery copper foil seersucker, which comprises a base, a plurality of flow equalizing holes are longitudinally arranged on a plate body of the base, a left side plate and a right side plate are respectively arranged on the left side edge and the right side edge of the base, and a partition cavity is arranged between the left side plate and the right side plate. The base, the right side plate and the partition cavity enclose to form a right side liquid flow cavity, and the base, the left side plate and the partition cavity enclose to form a left side liquid flow cavity; according to the novel technical scheme provided by the utility model, the plurality of flow equalizing holes are distributed in the base and are distributed in the two sides of the base in a crossed manner, so that the electrolyte can be uniformly distributed, the electrolyte can be uniformly distributed when entering the electrolytic bath, the surface density uniformity of the copper foil is improved, and the service life of the electrolytic bath is prolonged. And the separation cavity separates the electrolyte entering from the flow equalizing holes and is matched with the left side plate and the right side plate, and the electrolyte enters the electrolytic bath through the liquid inlet, so that the electrolyte is prevented from being directly injected to the copper foil, and the beneficial effects of improving the use performance of the prepared copper foil are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery copper foil electrolysis production, in particular to a current equalizing plate for reducing seersucker of lithium battery copper foil. Background Art

[0002] Lithium battery copper foil, full name lithium-ion battery copper foil, is the key material for the negative electrode current collector of lithium-ion batteries. It is produced by electrolysis and surface treated to have good conductivity and softness. It is an indispensable part of lithium-ion batteries. The application range of lithium battery copper foil is very wide. It can be used in lithium-ion batteries for new energy vehicles, various electronic products, energy storage equipment, etc. The mainstream production method is to generate copper foil by electrolysis of copper sulfate electrolyte in the anode plate and cathode roller.

[0003] However, the current mainstream production method is that when electrolyzing copper foil, the electrolyte enters the tank through the liquid inlet. At this time, the electrolyte is directly ejected from the liquid inlet onto the cathode roller and the electrolyte flow is uneven, which will cause uneven surface density of the copper foil and eventually produce a bubble yarn phenomenon on the surface, affecting the performance of the copper foil.

[0004] Therefore, it is urgent to improve the liquid inlet to achieve uniform electrolyte flow. Utility Model Content

[0005] In view of the above technical problems in the related art, the utility model proposes a flow equalizing plate for reducing the bubble gauze of lithium battery copper foil, which can overcome the problem of uneven flow of electrolyte entering the electrolytic cell in the prior art causing a large amount of bubble gauze on the surface of the prepared copper foil.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0007] A current balancing plate for reducing copper foil seersucker in lithium batteries;

[0008] The flow equalizing plate for reducing lithium battery copper foil bubblegum includes a base, a plurality of flow equalizing holes are longitudinally arranged on the plate body of the base, a left side plate and a right side plate are respectively arranged on the left side and the right side of the base, a dividing cavity is arranged between the left side plate and the right side plate, the base, the right side plate and the dividing cavity enclose a right liquid flow chamber, and the base, the left side plate and the dividing cavity enclose a left liquid flow chamber.

[0009] Furthermore, the vertical section of the split cavity is in a "T" shape, and a gap is formed between the upper horizontal portion of the "T"-shaped split cavity and the right plate and the left plate, and the gap is a liquid inlet.

[0010] Furthermore, two flow balancing areas are provided on the plate body of the base, and the two flow balancing areas are respectively located on two sides of the split cavity, and each of the flow balancing areas is provided with two rows of flow balancing holes.

[0011] Furthermore, the flow equalizing holes are respectively arranged below the right liquid flow chamber and the left liquid flow chamber in a left-right symmetrical manner, and the two rows of flow equalizing holes in each flow equalizing area are arranged in a cross-staggered manner, and the electrolyte enters the two sides of the dividing cavity from the flow equalizing holes.

[0012] Furthermore, the right side plate, the left side plate and the dividing cavity are all mounted on the upper end surface of the base.

[0013] Furthermore, the upper end surfaces of the right plate and the left plate are both oblique sections facing the partition cavity, and the oblique sections and the partition cavity form an oblique liquid inlet, and the electrolyte enters the electrolytic cell through the liquid inlet.

[0014] Furthermore, the angles formed by the oblique cut surfaces on the upper end surfaces of the right plate and the left plate and the horizontal plane are the same and less than or equal to 45 degrees.

[0015] Furthermore, the longitudinal section of the divided cavity is mirror-symmetrical along its midline, and the right side plate and the left side plate are mirror-symmetrically arranged along the midline of the longitudinal section of the divided cavity.

[0016] Furthermore, the right liquid flow chamber and the left liquid flow chamber have the same volume, and the two are arranged in a left-right mirror-symmetrical manner along the midline of the longitudinal section of the divided cavity.

[0017] Furthermore, the liquid inlet is an oblique outlet.

[0018] Beneficial effects of the utility model: through the new technical solution provided by the utility model, the base is covered with a plurality of equal flow holes, and the equal flow holes are cross-distributed on both sides of the base to evenly distribute the electrolyte, so that the electrolyte can be evenly distributed when entering the electrolytic cell, thereby achieving the improvement of the uniformity of the copper foil surface density. The dividing cavity separates the electrolyte entering through the equal flow holes and cooperates with the left and right side plates. The electrolyte enters the electrolytic cell from the liquid inlet, preventing the electrolyte from being directly ejected onto the copper foil, thereby improving the performance of the prepared copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of a current equalizing plate for reducing lithium battery copper foil seersucker according to an embodiment of the utility model;

[0021] Figure 2 It is an enlarged view of the structure of both ends of a current equalizing plate for reducing lithium battery copper foil seersucker according to an embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a base of a current equalizing plate for reducing lithium battery copper foil seersucker according to an embodiment of the utility model;

[0023] In the figure: 1. base; 11. flow equalizing hole; 2. liquid inlet; 3. right side plate; 4. left side plate; 5. dividing cavity; 6. right side liquid flow chamber; 7. left side liquid flow chamber. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0025] It should be understood that in the description of the embodiments of the present utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0026] like Figure 1-3As shown, according to an embodiment of the utility model, a flow equalizing plate for reducing copper foil seersucker of lithium batteries includes a base 1, a plurality of flow equalizing holes 11 are longitudinally arranged on the plate body of the base 1, a left side plate 4 and a right side plate 3 are respectively arranged on the left and right sides of the base 1, a dividing cavity 5 is arranged between the left side plate 4 and the right side plate 3, the base 1, the right side plate 3 and the dividing cavity 5 enclose a right liquid flow chamber 6, and the base 1, the left side plate 4 and the dividing cavity 5 enclose a left liquid flow chamber 7.

[0027] According to the current equalizing plate for reducing the copper foil bubble of lithium batteries described in an embodiment of the utility model, in a specific embodiment, the vertical cross-section of the dividing cavity 5 is in a "T" shape, and a gap is formed between the upper horizontal part of the "T"-shaped dividing cavity 5 and the right side plate 3 and the left side plate 4, and the gap is the liquid inlet 2.

[0028] According to a current equalizing plate for reducing copper foil bubblegum of lithium batteries described in an embodiment of the utility model, in a specific embodiment, two current equalizing areas are provided on the plate body of the base 1, and the two current equalizing areas are respectively located on both sides of the dividing cavity 5, and each of the current equalizing areas is provided with two rows of current equalizing holes 11.

[0029] According to a flow equalizing plate for reducing copper foil bubblegum of lithium battery described in an embodiment of the utility model, in a specific embodiment, the flow equalizing holes 11 are respectively arranged below the right liquid flow chamber 6 and the left liquid flow chamber 7 in a left-right symmetrical manner, and the two rows of flow equalizing holes 11 in each flow equalizing area are arranged in a cross-staggered manner, and the electrolyte enters the two sides of the dividing cavity 5 from the flow equalizing holes 11.

[0030] According to a current equalizing plate for reducing the seersucker of copper foil of lithium battery described in an embodiment of the utility model, in a specific embodiment, the right side plate 3, the left side plate 4 and the dividing cavity 5 are all installed on the upper end surface of the base 1.

[0031] According to a current equalizing plate for reducing copper foil bubblegum of lithium battery described in an embodiment of the utility model, in a specific embodiment, the upper end faces of the right side plate 3 and the left side plate 4 are both oblique sections facing the dividing cavity 5, and the oblique sections and the dividing cavity 5 form an oblique liquid inlet 2, and the electrolyte enters the electrolytic cell through the liquid inlet 2.

[0032] According to a current equalizing plate for reducing the seersucker of copper foil of lithium battery described in an embodiment of the utility model, in a specific embodiment, the angles formed by the oblique cut surfaces on the upper end surfaces of the right side plate 3 and the left side plate 4 and the horizontal plane are the same and less than or equal to 45 degrees.

[0033] According to the current equalizing plate for reducing the copper foil seersucker of lithium batteries described in an embodiment of the utility model, in a specific embodiment, the longitudinal section of the dividing cavity 5 is mirror-symmetrical along its center line, and the right side plate 3 and the left side plate 4 are mirror-symmetrically arranged along the center line of the longitudinal section of the dividing cavity 5.

[0034] According to the flow equalizing plate for reducing the copper foil bubble of lithium battery described in an embodiment of the utility model, in a specific embodiment, the volume of the right liquid flow chamber 6 and the left liquid flow chamber 7 are the same, and the shapes of the two are arranged in left-right mirror symmetry along the midline of the longitudinal section of the dividing cavity 5.

[0035] According to a flow equalizing plate for reducing seersucker of copper foil of lithium battery described in an embodiment of the utility model, in a specific embodiment, the liquid inlet 2 is an oblique outlet.

[0036] In order to facilitate understanding of the above technical solution of the present invention, the above technical solution of the present invention is described in detail below through specific usage and principle.

[0037] In specific use, a flow equalizing plate for reducing lithium battery copper foil bubblegum according to the utility model includes a base 1, a liquid inlet 2, a right side plate 3, a left side plate 4, a dividing cavity 5, a right liquid flow chamber 6 and a left liquid flow chamber 7; wherein the base 1 and the dividing cavity 5 are an integral whole, the right side plate 3 and the left side plate 4 are installed on the base 1, the right side plate 3 and the left side plate 4 are symmetrically distributed on both sides of the dividing cavity 5, a plurality of flow equalizing holes 11 are longitudinally opened on the plate body of the base 1, and the liquid inlet 2 is composed of the right side plate 3, the left side plate 4 and the dividing cavity 5 which cooperate with each other.

[0038] A plurality of equalizing holes 11 are longitudinally opened on the plate body of the base 1. The plurality of equalizing holes 11 are bilaterally symmetrical, and the equalizing holes 11 on the same side are cross-arranged to achieve uniform flow distribution of the electrolyte, thereby achieving uniform density of the copper foil surface.

[0039] The liquid inlet 2 is an oblique outlet, and the electrolyte enters the segmentation cavity 5 from the equalizing hole 11 and then flows into the electrolytic cell from the liquid inlet, thereby preventing the electrolyte from being directly sprayed onto the copper foil and ensuring the stability of the copper foil quality.

[0040] The upper end surfaces of the right side plate 3 and the left side plate 4 are oblique sections facing the dividing cavity 5, and the angle formed by the oblique section and the horizontal plane is less than or equal to 45 degrees; the dividing cavity 5 is in a "T" shape, and the "T"-shaped dividing cavity 5 forms a right liquid flow cavity 6 and a left liquid flow cavity 7 with the right side plate 3, the left side plate 4 and the base 1 respectively.

[0041] To sum up, with the help of the above-mentioned technical scheme of the utility model, through the new technical scheme provided by the utility model, the base is covered with a number of equal flow holes, and the equal flow holes are cross-distributed on both sides of the base to evenly distribute the electrolyte, so that the electrolyte can be evenly distributed when entering the electrolytic cell, thereby achieving the improvement of the uniformity of the copper foil surface density. The dividing cavity separates the electrolyte entering from the equal flow holes and cooperates with the left and right side plates. The electrolyte enters the electrolytic cell from the liquid inlet, preventing the electrolyte from being directly ejected onto the copper foil, thereby improving the performance of the prepared copper foil.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A current balancing plate for reducing lithium battery copper foil seersucker, characterized in that: The invention comprises a base (1), a plate body of the base (1) is longitudinally provided with a plurality of flow-balancing holes (11), the left side and the right side of the base (1) are respectively provided with a left side plate (4) and a right side plate (3), a dividing cavity (5) is provided between the left side plate (4) and the right side plate (3), the base (1), the right side plate (3) and the dividing cavity (5) are enclosed to form a right side liquid flow chamber (6), and the base (1), the left side plate (4) and the dividing cavity (5) are enclosed to form a left side liquid flow chamber (7).

2. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 1, characterized in that: The vertical cross-section of the split cavity (5) is in a "T" shape, and a gap is formed between the upper horizontal portion of the "T"-shaped split cavity (5) and the right side plate (3) and the left side plate (4), and the gap is the liquid inlet (2).

3. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 1, characterized in that: Two flow balancing areas are provided on the plate body of the base (1), the two flow balancing areas are respectively located on two sides of the dividing cavity (5), and each of the flow balancing areas is provided with two rows of flow balancing holes (11).

4. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 3, characterized in that: The flow balancing holes (11) are respectively arranged below the right liquid flow chamber (6) and the left liquid flow chamber (7) in a bilaterally symmetrical manner, and the two rows of flow balancing holes (11) in each flow balancing area are arranged in a staggered manner, and the electrolyte enters the two sides of the split cavity (5) through the flow balancing holes (11).

5. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 1, characterized in that: The right side plate (3), the left side plate (4) and the dividing cavity (5) are all mounted on the upper end surface of the base (1).

6. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 1, characterized in that: The upper end surfaces of the right side plate (3) and the left side plate (4) are both oblique cut surfaces facing the partition cavity (5), and the oblique cut surfaces and the partition cavity (5) form an oblique liquid inlet (2), and the electrolyte enters the electrolytic cell through the liquid inlet (2).

7. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 6, characterized in that: The angles formed by the oblique cut surfaces on the upper end surfaces of the right side plate (3) and the left side plate (4) and the horizontal plane are the same and less than or equal to 45 degrees.

8. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 1, characterized in that: The longitudinal section of the dividing cavity (5) is mirror-symmetrical along its midline, and the right side plate (3) and the left side plate (4) are arranged mirror-symmetrically along the midline of the longitudinal section of the dividing cavity (5).

9. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 1, characterized in that: The right liquid flow chamber (6) and the left liquid flow chamber (7) have the same volume, and the two are arranged in a left-right mirror-symmetrical manner along the midline of the longitudinal section of the dividing cavity (5).

10. A current equalizing plate for reducing lithium battery copper foil seersucker according to claim 2, characterized in that: The liquid inlet (2) is an oblique outlet.

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