A zinc-nickel battery

Abstract

This utility model discloses a zinc-nickel battery, including a casing with a cover at one end. A positive electrode post and a negative electrode post are disposed inside the cover. An electrolyte and multiple battery cell assemblies are disposed inside the casing. Each battery cell assembly includes a negative electrode plate, a separator, and a positive electrode plate stacked sequentially from top to bottom. A bidirectional screw is disposed at the end of the positive and negative electrode posts located inside the casing. Multiple nuts are threaded onto the circumferential side of the bidirectional screw. A negative electrode tab is welded to the top of the negative electrode plate, and a positive electrode tab is welded to the top of the positive electrode plate. This utility model, through the bidirectional screw, allows two bidirectional screws to connect to multiple negative electrode tabs and multiple positive electrode tabs respectively. Multiple nuts can then be used to separately fix multiple negative electrode tabs or multiple positive electrode tabs, thereby facilitating the control of the spacing between the multiple battery cell assemblies, simplifying the arrangement and installation of the multiple negative and multiple positive electrode tabs, and reducing the possibility of short circuits in the battery cell assemblies.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a zinc-nickel battery. Background Technology

[0002] With the continuous development of my country's economy, batteries are gradually evolving towards faster charging, longer lifespan, higher energy density, and higher safety. A common battery consists of a cell and a casing; the casing encapsulates and protects the cell. The cell has a positive electrode, a negative electrode, and a separator.

[0003] Currently, there are certain problems with the internal cell arrangement of existing batteries. The welding of cells and terminals is also quite troublesome. It is not easy to control the spacing between each group of cells. At the same time, it is easy for two cells to come into contact during installation, which may lead to internal short circuit accidents. There is an urgent need to design a zinc-nickel battery to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a zinc-nickel battery to address the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A zinc-nickel battery includes a casing with a cover at one end. A positive electrode post and a negative electrode post are disposed within the cover. An electrolyte and multiple cell assemblies are disposed within the casing. Each cell assembly includes a negative electrode sheet, a separator, and a positive electrode sheet stacked sequentially from top to bottom. A bidirectional screw is provided at one end of the positive and negative electrode posts within the casing. Multiple nuts are threaded onto the circumferential side of the bidirectional screw. A negative electrode tab is welded to the top of the negative electrode sheet, and a positive electrode tab is welded to the top of the positive electrode sheet. The negative electrode tab corresponds to the bidirectional screw at one end of the negative electrode post, and the positive electrode tab corresponds to the bidirectional screw at one end of the positive electrode post. The nuts are used to separate and fix the negative electrode tab and the positive electrode tab.

[0007] Furthermore, the negative electrode tab and the positive electrode tab are P-shaped, and both the negative electrode tab and the positive electrode tab are provided with connecting holes, which correspond to the bidirectional screw.

[0008] Furthermore, a liquid injection hole is provided on one side of the shell cover, and a sealing block is threaded into the liquid injection hole.

[0009] Furthermore, the inner wall of the injection hole is provided with an internal thread, the periphery of the sealing block is provided with an external thread, the internal thread and the external thread are threadedly engaged, a sealing gasket is provided between the sealing block and the injection hole, and a groove is provided on one side of the sealing block, and a valve hole is provided in the groove.

[0010] Furthermore, a positive electrode mark corresponding to the positive electrode post is provided on one side of the shell cover, and a negative electrode mark corresponding to the negative electrode post is provided on one side of the shell cover. Both the positive electrode post and the negative electrode post are covered with sealing adhesive around their periphery.

[0011] Furthermore, both side walls of the housing are provided with multiple support blocks, with the multiple support blocks of one side wall corresponding to the multiple support blocks of the other side wall respectively. Both side walls of the housing are provided with limit blocks and limit grooves, with the limit blocks corresponding to the limit grooves.

[0012] In the above technical solution, the zinc-nickel battery provided by this utility model has the following beneficial effects:

[0013] The bidirectional screws allow two screws to be connected to multiple negative and positive electrodes respectively, and multiple nuts to fix multiple negative or positive electrodes separately. This facilitates control over the spacing of multiple battery cell assemblies, makes it easier to arrange and install multiple negative and positive electrodes, and reduces the possibility of short circuits in the battery cell assemblies. The nuts also allow multiple negative and positive electrodes to be fixed separately, ensuring that the multiple battery cell assemblies are arranged at equal intervals. This allows multiple battery cell assemblies to be connected to the bidirectional screws first, facilitating the encapsulation and fixation of the battery cell assemblies and improving efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the structure of a lithium-ion power battery provided in an embodiment of a zinc-nickel battery according to this utility model.

[0016] Figure 2 This is a schematic diagram of the casing and cover structure provided for an embodiment of a zinc-nickel battery according to this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure between the electrode and the cell provided in an embodiment of a zinc-nickel battery according to this utility model.

[0018] Figure 4 This is a schematic diagram of a bidirectional screw structure provided for an embodiment of a zinc-nickel battery according to the present invention.

[0019] Figure 5 This is a schematic diagram of the cell assembly structure provided in an embodiment of a zinc-nickel battery according to this utility model.

[0020] 1. Shell; 2. Shell cover; 3. Positive electrode post; 4. Negative electrode post; 5. Cell assembly; 6. Negative electrode plate; 7. Separator; 8. Positive electrode plate; 9. Bidirectional screw; 10. Nut; 11. Negative electrode tab; 12. Positive electrode tab; 13. Injection hole; 14. Sealing block; 15. Sealing gasket; 16. Groove; 17. Positive electrode marking; 18. Negative electrode marking; 19. Sealing adhesive; 20. Support block; 21. Limiting block; 22. Limiting groove; 23. Connection hole. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-5 As shown in the figure, this utility model provides a zinc-nickel battery.

[0023] The device includes a housing 1, with a cover 2 installed at one end of the housing 1. A positive electrode post 3 and a negative electrode post 4 are disposed inside the cover 2. An electrolyte and multiple cell assemblies 5 are disposed inside the housing 1. The cell assembly 5 includes a negative electrode plate 6, a separator 7, and a positive electrode plate 8 stacked sequentially from top to bottom. A bidirectional screw 9 is provided at one end of the positive electrode post 3 and the negative electrode post 4 located inside the housing 1. Multiple nuts 10 are threaded around the bidirectional screw 9. A negative electrode tab 11 is welded to the top of the negative electrode plate 6, and a positive electrode tab 12 is welded to the top of the positive electrode plate 8. The negative electrode tab 11 corresponds to the bidirectional screw 9 at one end of the negative electrode post 4, and the positive electrode tab 12 corresponds to the bidirectional screw 9 at one end of the positive electrode post 3. The nuts 10 are used to separate and fix the negative electrode tab 11 and the positive electrode tab 12.

[0024] Reference Figure 1 In this embodiment, a liquid injection hole 13 is provided on one side of the casing 2. A sealing block 14 is threaded into the liquid injection hole 13. The inner wall of the liquid injection hole 13 is provided with internal threads, and the periphery of the sealing block 14 is provided with external threads. The internal and external threads are threadedly engaged. A sealing gasket 15 is provided between the sealing block 14 and the liquid injection hole 13. A groove 16 is provided on one side of the sealing block 14, and a valve hole is provided in the groove 16. Through the liquid injection hole 13, the sealing block 14 can be rotated through the groove 16, so that the external thread of the sealing block 14 and the internal thread of the liquid injection hole 13 are threadedly engaged, and the sealing block 14 can be removed from the liquid injection hole 13. The liquid injection hole 13 is used to replenish electrolyte to alleviate the dryness of the battery. The sealing gasket 15 can improve the sealing effect between the liquid injection hole 13 and the sealing block 14, and the valve hole can be properly closed after the electrolyte is replenished.

[0025] Reference Figure 2In this embodiment, one side of the casing 2 is provided with a positive electrode mark 17 corresponding to the positive electrode post 3, and one side of the casing 2 is provided with a negative electrode mark 18 corresponding to the negative electrode post 4. Both the positive electrode post 3 and the negative electrode post 4 are covered with sealing adhesive 19, wherein the sealing adhesive 19 for the positive electrode post 3 is red, and the sealing adhesive 19 for the negative electrode post 4 is blue. The positive electrode mark 17 and the negative electrode mark 18 allow for differentiation between the positive electrode post 3 and the negative electrode post 4 for use, and the sealing adhesive 19 is also used for identification.

[0026] Reference Figure 2 In this embodiment, the two side walls of the housing 1 are each provided with a plurality of support blocks 20, with the plurality of support blocks 20 on one side wall corresponding to the plurality of support blocks 20 on the other side wall. Both side walls of the housing 1 are provided with limit blocks 21 and limit grooves 22, with the limit blocks 21 corresponding to the limit grooves 22. The support blocks 20 provide support between the two batteries, maintaining a certain distance between them. After the limit blocks 21 enter the limit grooves 22, they limit the connection and positioning of the two batteries.

[0027] Reference Figure 3-5 In this embodiment, the negative electrode tab 11 and the positive electrode tab 12 are P-shaped, and each of the negative electrode tab 11 and the positive electrode tab 12 is provided with a connecting hole 23, which corresponds to the bidirectional screw 9. Through the connecting hole 23, the bidirectional screw 9 can pass through the connecting hole 23, so that the negative electrode tab 11 or the positive electrode tab 12 can be connected to the bidirectional screw 9. The negative electrode tab 11 and the positive electrode tab 12 are symmetrically distributed, so that one end of the negative electrode tab 11 and one end of the positive electrode tab 12 correspond to the two bidirectional screws 9 respectively.

[0028] Working principle: In use, multiple battery cell assemblies 5 are first assembled. Each battery cell assembly 5 consists of a negative electrode plate 6, a separator 7, and a positive electrode plate 8. The separator 7 is positioned between the negative electrode plate 6 and the positive electrode plate 8 for isolation. Then, a negative electrode tab 11 is welded to the top of the negative electrode plate 6, and a positive electrode tab 12 is welded to the top of the positive electrode plate 8, completing the assembly of the battery cell assembly 5. Next, two bidirectional screws 9 are connected to one end of the positive electrode post 3 and the negative electrode post 4, respectively, so that the nuts 10 fix the bidirectional screws 9. Finally, the battery cell assembly 5 is... The negative electrode tab 11 is connected to the bidirectional screw 9 of the negative electrode post 4, and the positive electrode tab 12 is connected to the bidirectional screw 9 of the positive electrode post 3. After the connection is completed, the nuts 10 are used to separate and fix it. The above process is repeated to install multiple battery cell components 5 to complete the assembly. After the assembly is completed, the two ends of the bidirectional screw 9 are tightened and fixed with nuts 10, and the connection with the negative electrode tab 11 and the positive electrode tab 12 is connected and fixed. Multiple battery cell components 5 are placed into the housing 1, and electrolyte is injected into the housing 1, so that the housing 1 and the cover 2 are sealed.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A zinc-nickel battery comprising a casing (1), characterized in that, A cover (2) is installed at one end of the housing (1). A positive electrode post (3) and a negative electrode post (4) are disposed inside the cover (2). An electrolyte and multiple cell assemblies (5) are disposed inside the housing (1). The cell assembly (5) includes a negative electrode plate (6), a separator (7), and a positive electrode plate (8) stacked sequentially from top to bottom. A bidirectional screw (9) is provided at one end of the positive electrode post (3) and the negative electrode post (4) located inside the housing (1). The circumferential screw of the bidirectional screw (9) is... The device is fitted with multiple nuts (10). The top of the negative electrode plate (6) is welded with a negative electrode lug (11), and the top of the positive electrode plate (8) is welded with a positive electrode lug (12). The negative electrode lug (11) corresponds to the bidirectional screw (9) at one end of the negative electrode post (4), and the positive electrode lug (12) corresponds to the bidirectional screw (9) at one end of the positive electrode post (3). The nuts (10) are used to separate and fix the negative electrode lug (11) and the positive electrode lug (12).

2. A zinc-nickel battery according to claim 1, characterized in that The negative electrode tab (11) and the positive electrode tab (12) are P-shaped. Both the negative electrode tab (11) and the positive electrode tab (12) are provided with connecting holes (23), which correspond to the bidirectional screw (9).

3. A zinc-nickel battery according to claim 1, characterized in that, A liquid injection hole (13) is provided on one side of the cover (2), and a sealing block (14) is threaded into the liquid injection hole (13).

4. A zinc-nickel battery according to claim 3, characterized in that The inner wall of the injection hole (13) is provided with an internal thread, and the periphery of the sealing block (14) is provided with an external thread. The internal thread and the external thread are threadedly engaged. A sealing gasket (15) is provided between the sealing block (14) and the injection hole (13). A groove (16) is provided on one side of the sealing block (14), and a valve hole is provided in the groove (16).

5. A zinc-nickel battery according to claim 1, characterized in that, A positive electrode mark (17) corresponding to the positive electrode post (3) is provided on one side of the cover (2), and a negative electrode mark (18) corresponding to the negative electrode post (4) is provided on one side of the cover (2). Sealing adhesive (19) is applied to the periphery of both the positive electrode post (3) and the negative electrode post (4).

6. A zinc-nickel battery according to claim 1, characterized in that, The housing (1) is provided with multiple support blocks (20) on both side walls. The multiple support blocks (20) on one side wall correspond to the multiple support blocks (20) on the other side wall. The housing (1) is provided with limit blocks (21) and limit grooves (22) on both side walls. The limit blocks (21) correspond to the limit grooves (22).

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