Lithium battery electrode pressing assembly

Abstract

The utility model discloses a lithium battery electrode pressing assembly, which belongs to the technical field of lithium batteries, and is characterized in that the lithium battery electrode pressing assembly comprises a stabilizing table, the front side of the stabilizing table is in bolted connection with a controller, the inner side of the stabilizing table is in bolted connection with a control structure, and the bottom of the control structure is in bolted connection with a pressing structure; the outer side of the control structure is movably connected with a protection structure, the front side of the top of the stabilizing table is in bolted connection with an assembly table, the bottom of the upper pressing plate is movably connected with the bottom of the lower pressing plate, an existing lithium battery electrode is manufactured in a pressing mode, active particles in an electrode material can be arranged more tightly through pressing, and the stability of the lithium battery electrode is improved. Therefore, the content of active substances in unit volume is increased, the energy density of the battery is further improved, the contact between the electrode material and the conductive agent is closer, the resistance is reduced, the overall conductivity of the battery is improved, the structural stability of the battery in the charging and discharging process is improved, and the service life of the battery is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery electrode pressing assembly. Background Art

[0002] A lithium battery is a battery that uses lithium metal or lithium compounds as electrode materials. It is a common chemical power source with the following characteristics: High energy density: Lithium batteries have high energy density and can store more energy, so they can work for a long time. High operating voltage: Lithium batteries have a high operating voltage and can generate greater power. Lightweight: Lithium batteries are lightweight and suitable for use in mobile devices. Environmental protection: Lithium batteries produce less pollution and meet environmental protection requirements. Lithium batteries are widely used in mobile phones, laptops, electric vehicles, energy storage systems and other fields. Lithium battery electrode pressing refers to the process of pressing materials such as the positive electrode, negative electrode and separator in a specific order and pressure to form battery electrodes.

[0003] The existing lithium battery pole piece is indispensable for lithium batteries. Before processing the pole piece, it is necessary to cut the pole piece into a suitable size and then process it. The slicing mechanism has a complex structure and the length error of the cut pole piece is large, resulting in a large number of defective products and being environmentally unfriendly.

[0004] The existing patent (Announcement No.: CN209902339U) discloses a lithium battery processing pole piece slicing mechanism. The utility model is a lithium battery processing pole piece slicing mechanism, which is provided with a first limit block and a second limit block to limit the pole piece plate, so that the pole piece plate can be moved in a directional manner. The screw is provided to drive the positioning plate to move, and the length of the pole piece plate to be cut is limited, thereby reducing the error of the pole piece length after cutting. It is convenient to use, and a slicing table is provided to easily place the pole piece plate. The cutting knife and the knife groove cooperate with each other to achieve rapid slicing. The overall structure is simple, the cost is low, the practicability is strong, and it is easy to promote.

[0005] In response to the above problems, the existing patent provides a solution. The existing lithium battery electrodes are manufactured by pressing. Through pressing, the active particles in the electrode material can be arranged more tightly, thereby increasing the content of active substances per unit volume, thereby improving the energy density of the battery. It can also make the contact between the electrode material and the conductive agent closer, reduce resistance, and improve the overall conductivity of the battery, which helps to improve the structural stability of the battery during the charging and discharging process and extend the battery life.

[0006] To this end, a lithium battery electrode pressing assembly is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a lithium battery electrode pressing assembly, which can solve the problem of pressing the existing lithium battery electrodes. The active particles in the electrode material can be arranged more tightly through pressing, thereby increasing the content of active substances per unit volume, thereby improving the energy density of the battery. It can also make the contact between the electrode material and the conductive agent closer, reduce resistance, improve the overall conductivity of the battery, help to improve the structural stability of the battery during the charging and discharging process, and extend the service life of the battery.

[0008] To achieve the above objectives, the present invention provides the following technical solutions: a lithium battery electrode pressing assembly, comprising a stabilizing platform, a controller bolted to the front side of the stabilizing platform, a control structure bolted to the inner side of the stabilizing platform, a pressing structure bolted to the bottom of the control structure, a protective structure movably connected to the outer side of the control structure, and an assembly platform bolted to the front side of the top of the stabilizing platform;

[0009] The pressing structure includes an upper pressing plate, a lower pressing plate, a protective plate, an auxiliary rod and a limit block. The bottom of the upper pressing plate is movably connected to the bottom of the lower pressing plate, the inner side of the lower pressing plate is movably connected to the outer side of the protective plate, the top of the protective plate is movably connected to the bottom of the upper pressing plate, the top of the upper pressing plate is bolted to the bottom of the auxiliary rod, and the top of the outer wall of the auxiliary rod is threadedly connected to the inner wall of the limit block.

[0010] Preferably, a stabilizing block is bolted to the bottom of the lower pressing plate, a supporting rod is fixedly connected to the top of the stabilizing block, and a supporting block is sleeved on the top of the supporting rod.

[0011] Preferably, a hydraulic press is bolted to the inner side of the support block, the bottom of the hydraulic press is bolted to the top of the upper pressing plate, and there are four support rods, which are respectively arranged on the top of the stabilizing block.

[0012] Preferably, the inner wall of the support block is slidably connected to the outer wall of the auxiliary rod, the bottom of the limit block is bolted to the bottom of the support block, and the hydraulic press passes through the support block and is connected to the upper pressing plate.

[0013] Preferably, the left side of the stabilizing block is movably connected to a mounting frame, the inner side of the mounting frame is fixedly connected to a transparent plate, the right side of the mounting frame is movably connected to the left side of the supporting block, and the bottom of the mounting frame is bolted to the top of the stabilizing platform.

[0014] Preferably, the rear side of the mounting frame is fixedly connected to a fixing plate, the front side of the fixing plate is movably connected to the rear side of the stabilizing block, the front side of the fixing plate is movably connected to the rear side of the supporting block, and the number of the mounting frames is two, which are respectively arranged on both sides of the front side of the fixing plate.

[0015] Preferably, a matching hole is provided on the top of the support block, and the inner wall of the matching hole is slidably connected to the outer wall of the auxiliary rod.

[0016] Preferably, a communicating hole is opened on the top of the supporting block, the inner wall of the communicating hole is plugged into the outer wall of the hydraulic press, and a supporting piece is fixedly connected to the bottom of the stabilizing platform.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This application sets a pressing assembly. When the user needs to press the lithium battery electrodes, first, the user places the top of the lower pressing plate. The protective plate provided on the inner side of the lower pressing plate is made of PET material to protect the electrodes during pressing. After the placement is completed, the user controls the upper pressing plate to move closer to the lower pressing plate through the control structure to press the lithium battery electrodes. The auxiliary rod installed on the top of the upper pressing plate is used to increase the stability of the upper pressing plate when it moves up and down, and a limit block is installed on the auxiliary rod to limit the upper and lower movable distance of the auxiliary rod;

[0019] 2. The control structure provided in the present application is bolted to the stabilization table through a stabilization block, which can stabilize the control structure as a whole. By providing a support rod fixed on the top of the stabilization block, the user can install the support block on the support rod and use a nut to bolt it to stabilize the hydraulic press installed on the support block. The user can control the operation of the hydraulic press through the controller, so that the pressing structure can press the lithium battery electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the lithium battery electrode pressing assembly of the present utility model;

[0021] Figure 2 A diagram showing the disassembly of the press-fit structure of the present invention;

[0022] Figure 3 This is a diagram showing the decomposition of the control structure of the present utility model;

[0023] Figure 4 A diagram showing the overall structure of the utility model;

[0024] Figure 5 This is an activity diagram of the control structure of the utility model in conjunction with the pressing structure.

[0025] In the figure, 1. stabilizing platform; 2. controller; 3. control structure; 31. stabilizing block; 32. support rod; 33. support block; 34. hydraulic press; 4. pressing structure; 41. upper pressing plate; 42. lower pressing plate; 43. protective plate; 44. auxiliary rod; 45. limit block; 5. protective structure; 51. mounting frame; 52. transparent plate; 53. fixing plate; 6. assembly table; 7. matching hole; 8. connecting hole; 9. support member. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , this utility model provides a technical solution:

[0028] A lithium battery electrode pressing assembly includes a stabilizing platform 1, a controller 2 bolted to the front side of the stabilizing platform 1, a control structure 3 bolted to the inner side of the stabilizing platform 1, a pressing structure 4 bolted to the bottom of the control structure 3, a protective structure 5 movably connected to the outer side of the control structure 3, and an assembly platform 6 bolted to the front side of the top of the stabilizing platform 1;

[0029] The pressing structure 4 includes an upper pressing plate 41, a lower pressing plate 42, a protective plate 43, an auxiliary rod 44 and a limit block 45. The bottom of the upper pressing plate 41 is movably connected to the bottom of the lower pressing plate 42, the inner side of the lower pressing plate 42 is movably connected to the outer side of the protective plate 43, the top of the protective plate 43 is movably connected to the bottom of the upper pressing plate 41, the top of the upper pressing plate 41 is bolted to the bottom of the auxiliary rod 44, and the top of the outer wall of the auxiliary rod 44 is threadedly connected to the inner wall of the limit block 45.

[0030] In this embodiment: When the user needs to press the lithium battery electrodes, first, the user places the top of the lower pressing plate 42, and the protective plate 43 set on the inner side of the lower pressing plate 42 is made of PET material, which is used to protect the electrodes during pressing. After placement is completed, the user controls the upper pressing plate 41 to move closer to the lower pressing plate 42 through the control structure 3 to press the lithium battery electrodes. The auxiliary rod 44 installed on the top of the upper pressing plate 41 is used to increase the stability of the upper pressing plate 41 when it moves up and down, and a limiting block 45 is installed on the auxiliary rod 44 to limit the up and down movable distance of the auxiliary rod 44. The protective structure 5 installed on the top of the stabilizing platform 1 and the protective structure 5 is on the outside of the control structure 3 to protect the pressing process.

[0031] Specifically, such as Figure 3 and Figure 5 As shown, the bottom of the lower pressing plate 42 is bolted with a stabilizing block 31 , the top of the stabilizing block 31 is fixedly connected with a supporting rod 32 , and the top of the supporting rod 32 is sleeved with a supporting block 33 .

[0032] Specifically, such as Figure 3 and Figure 5 As shown, a hydraulic press 34 is bolted to the inner side of the support block 33 , and the bottom of the hydraulic press 34 is bolted to the top of the upper pressing plate 41 . There are four support rods 32 , which are respectively arranged on the top of the stabilizing block 31 .

[0033] Specifically, such as Figure 3 and Figure 5 As shown, the inner wall of the support block 33 is slidably connected to the outer wall of the auxiliary rod 44 , the bottom of the limit block 45 is bolted to the bottom of the support block 33 , and the hydraulic press 34 passes through the support block 33 and is connected to the upper pressing plate 41 .

[0034] In this embodiment: the control structure 3 is provided, which is bolted to the stabilizing platform 1 through a stabilizing block 31, so that the control structure 3 as a whole can be stabilized. By providing a support rod 32 fixed on the top of the stabilizing block 31, the user can install the support block 33 on the support rod 32 and bolt it with a nut to stabilize the hydraulic press 34 installed on the support block 33. The user can control the operation of the hydraulic press 34 through the controller 2, so that the pressing structure 4 can press the lithium battery electrodes.

[0035] Specifically, such as Figure 1 and Figure 4 As shown, the left side of the stabilizing block 31 is movably connected to the mounting frame 51, the inner side of the mounting frame 51 is fixedly connected to the transparent plate 52, the right side of the mounting frame 51 is movably connected to the left side of the supporting block 33, and the bottom of the mounting frame 51 is bolted to the top of the stabilizing platform 1.

[0036] Specifically, such as Figure 1 and Figure 4 As shown, the rear side of the mounting frame 51 is fixedly connected to a fixing plate 53, the front side of the fixing plate 53 is movably connected to the rear side of the stabilizing block 31, and the front side of the fixing plate 53 is movably connected to the rear side of the supporting block 33. There are two mounting frames 51, which are respectively arranged on both sides of the front side of the fixing plate 53.

[0037] In this embodiment: the mounting frame 51 is mounted on the top of the stabilizing platform 1, so that the protective structure 5 is stabilized on the stabilizing platform 1 as a whole, and the protective structure 5 is located on the outside of the control structure 3 to protect the pressing process of the lithium battery electrodes. By providing a transparent plate 52 fixed on the inside of the mounting frame 51, the user can observe the pressing process while the protective structure 5 is providing protection.

[0038] Specifically, such as Figure 3 As shown, a matching hole 7 is formed on the top of the support block 33 , and the inner wall of the matching hole 7 is slidably connected to the outer wall of the auxiliary rod 44 .

[0039] Specifically, such as Figure 1 and Figure 3 As shown, a connecting hole 8 is opened on the top of the support block 33 , the inner wall of the connecting hole 8 is plugged into the outer wall of the hydraulic cylinder 34 , and a supporting member 9 is fixedly connected to the bottom of the stabilizing platform 1 .

[0040] In this embodiment: through the matching hole 7 opened at the top of the support block 33, the auxiliary rod 44 can slide on the support block 33 to assist in stabilizing the movement of the upper pressing plate 41; through the connecting hole 8 opened at the top of the support block 33, the hydraulic press 34 can pass through the support block 33 and be installed on the support block 33; the support member 9 fixed at the bottom of the stabilizing platform 1 is used to increase the stability of the placement of the stabilizing platform 1.

[0041] Working principle: When the user needs to press the lithium battery electrodes, first, the user places the top of the lower pressing plate 42. The protective plate 43 provided on the inner side of the lower pressing plate 42 is made of PET material and is used to protect the electrodes during pressing. After the placement is completed, the user can control the hydraulic press 34 to operate through the controller 2. The operation of the hydraulic press 34 will make the upper pressing plate 41 bolted to the bottom of the hydraulic press 34 close to the top of the lower pressing plate 42 to press the lithium battery electrodes. The auxiliary rod 44 installed on the top of the upper pressing plate 41 is in the support position. The inner wall of the block 33 is used to increase the stability of the upper pressing plate 41 when it moves up and down, and a limit block 45 is installed on the auxiliary rod 44 to limit the up and down movable distance of the auxiliary rod 44. It is installed on the top of the stabilizing platform 1 through the mounting frame 51, so that the protective structure 5 is stabilized on the stabilizing platform 1 as a whole, and the protective structure 5 is located on the outside of the control structure 3 to protect the pressing process of the lithium battery electrodes. By setting a transparent plate 52 fixed on the inside of the mounting frame 51, the user can observe the pressing process while the protective structure 5 is providing protection.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lithium battery electrode pressing assembly, comprising a stabilizing platform (1), characterized in that: The front side of the stabilizing platform (1) is bolted with a controller (2), the inner side of the stabilizing platform (1) is bolted with a control structure (3), the bottom of the control structure (3) is bolted with a press-fit structure (4), the outer side of the control structure (3) is movably connected with a protective structure (5), and the front side of the top of the stabilizing platform (1) is bolted with an assembly platform (6); The pressing structure (4) comprises an upper pressing plate (41), a lower pressing plate (42), a protective plate (43), an auxiliary rod (44) and a limit block (45), wherein the bottom of the upper pressing plate (41) is movably connected to the bottom of the lower pressing plate (42), the inner side of the lower pressing plate (42) is movably connected to the outer side of the protective plate (43), the top of the protective plate (43) is movably connected to the bottom of the upper pressing plate (41), the top of the upper pressing plate (41) is bolted to the bottom of the auxiliary rod (44), and the top of the outer wall of the auxiliary rod (44) is threadedly connected to the inner wall of the limit block (45).

2. The lithium battery electrode pressing assembly according to claim 1, characterized in that: The bottom of the lower pressing plate (42) is bolted with a stabilizing block (31), the top of the stabilizing block (31) is fixedly connected with a supporting rod (32), and the top of the supporting rod (32) is sleeved with a supporting block (33).

3. The lithium battery electrode pressing assembly according to claim 2, characterized in that: A hydraulic press (34) is bolted to the inner side of the support block (33), and the bottom of the hydraulic press (34) is bolted to the top of the upper pressing plate (41). There are four support rods (32) and they are respectively arranged on the top of the stabilizing block (31).

4. The lithium battery electrode pressing assembly according to claim 3, characterized in that: The inner wall of the support block (33) is slidably connected to the outer wall of the auxiliary rod (44), the bottom of the limit block (45) is bolted to the bottom of the support block (33), and the hydraulic press (34) passes through the support block (33) and is connected to the upper pressing plate (41).

5. The lithium battery electrode pressing assembly according to claim 2, characterized in that: The left side of the stabilizing block (31) is movably connected to a mounting frame (51), the inner side of the mounting frame (51) is fixedly connected to a transparent plate (52), the right side of the mounting frame (51) is movably connected to the left side of the supporting block (33), and the bottom of the mounting frame (51) is bolted to the top of the stabilizing platform (1).

6. The lithium battery electrode pressing assembly according to claim 5, characterized in that: The rear side of the mounting frame (51) is fixedly connected to a fixing plate (53), the front side of the fixing plate (53) is movably connected to the rear side of the stabilizing block (31), and the front side of the fixing plate (53) is movably connected to the rear side of the supporting block (33). The number of the mounting frames (51) is two, and they are respectively arranged on both sides of the front side of the fixing plate (53).

7. The lithium battery electrode pressing assembly according to claim 2, characterized in that: A matching hole (7) is provided on the top of the support block (33), and the inner wall of the matching hole (7) is slidably connected to the outer wall of the auxiliary rod (44).

8. The lithium battery electrode pressing assembly according to claim 3, characterized in that: A connecting hole (8) is provided on the top of the support block (33), the inner wall of the connecting hole (8) is plugged into the outer wall of the hydraulic device (34), and a supporting member (9) is fixedly connected to the bottom of the stabilizing platform (1).

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