A novel battery structural component, battery and battery assembly method

Abstract

The present invention discloses a novel battery structural part, a battery and a battery assembly method, wherein the battery structural part is an integrated component 1; the integrated component 1 comprises a stop frame 1, an integrated cover plate and a single pole; the battery comprises an aluminum shell, a battery cell is installed inside the aluminum shell, one end of the battery cell is connected to the integrated component 1, and the other end of the battery cell is provided with an integrated component 2, and the integrated component 1 and the integrated component 2 are welded together with the aluminum shell; the assembly method comprises the following steps: 1, forming the integrated component 2; 2, welding the battery cell to the integrated component 2; 3, welding the integrated component 2 to one end of the aluminum shell; 4, welding the battery cell to the single pole; 5, welding the single pole to the integrated cover plate to form the integrated component 1; and 6, welding the integrated component 1 to the aluminum shell; the above method makes it unnecessary for the welded connecting piece 1 to be folded into the interior of the aluminum shell, thereby saving space inside the battery and further improving the energy density of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of battery structures, and in particular to a novel battery structural component, a battery, and a battery assembly method. Background Art

[0002] A battery consists of several parts, including poles (positive and negative), cells, and a casing. The poles and cells are connected by connectors, forming a pathway. The common connection method currently used is to weld the connectors to the poles, while the poles and cover plates are riveted together. During the welding process, the connectors need to be led out of the battery and connected to the negative (positive) poles. After welding, the connectors are folded and placed inside the battery, and the cover plate is welded to the aluminum casing to seal. Since the connectors are bent and placed inside the battery, they occupy internal space (assuming the aluminum casing has a certain height), resulting in a corresponding loss of energy and a low battery energy density. Summary of the Invention

[0003] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a new type of battery structural component, battery and battery assembly method. By using the single pole in the integrated component one, it is no longer necessary to extend the connecting piece one connected thereto outside the aluminum shell for welding during the welding process. Furthermore, the connecting piece one after welding does not need to be folded into the interior of the aluminum shell, thereby saving space inside the battery and further improving the energy density of the battery.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A novel battery structural component, the battery structural component is an integrated component;

[0006] The integrated component 1 includes a stop frame 1, an integrated cover plate and a single pole;

[0007] The integrated cover is arranged on the outside of the first stop frame, and the single pole passes through the first stop frame and is welded to the integrated cover;

[0008] The integrated cover includes a substrate 1, a nano-insulator and a pressure plate 1. The nano-insulator is located between the substrate 1 and the pressure plate 1. The substrate 1 and the pressure plate 1 are combined together by nano-injection molding to form the nano-insulator.

[0009] As a further solution of the present invention: a sawtooth platform 1 is provided on the bottom surface of the first pressing plate, a sawtooth platform 2 is provided on the bottom surface of the first substrate, the sawtooth platform 1 and the sawtooth platform 2 are provided in contact with the nano-insulator, and bosses extend on both sides of the first pressing plate.

[0010] As a further solution of the present invention: an explosion-proof valve is integrally provided on one side of the substrate.

[0011] As a further solution of the present invention: a new type of battery uses the above-mentioned battery structural parts, the battery includes an aluminum shell, a battery cell is installed inside the aluminum shell, one end of the battery cell is connected to integrated component 1, and the other end of the battery cell is provided with integrated component 2, and integrated component 1 and integrated component 2 are welded together with the aluminum shell.

[0012] As a further solution of the present invention: two groups of battery cells are provided.

[0013] As a further solution of the present invention: integrated component two includes a stop frame two, a substrate two is provided on the outside of the stop frame two, an injection-molded insulator is provided on the outside of the substrate two, a pressure plate two is installed in the injection-molded insulator, and a riveted pole is provided on the inside of the stop frame two. The stop frame two, the substrate two, the injection-molded insulator and the pressure plate two are riveted together by the riveted pole, and a sealing ring is provided at the connection between the riveted pole and the stop frame two.

[0014] As a further solution of the present invention: a connecting piece 1 and a connecting piece 2 are respectively provided at both ends of the battery cell.

[0015] As a further solution of the present invention: a novel battery assembly method is used to assemble the above-mentioned battery, and the assembly method comprises the following steps:

[0016] Step 1: Rivet the second stop frame, the second base plate, the sealing ring, the injection-molded insulator and the second pressing plate together by riveting the poles to form the second integrated component;

[0017] Step 2: Fit the connecting piece 2 at one end of the battery cell together, and then weld it to the riveted pole of the integrated component 2 on the outside of the aluminum shell;

[0018] Step 3: After step 2 is welded, the battery cell is introduced into the aluminum shell, and the substrate 2 in the integrated component 2 is welded to one end of the aluminum shell into one piece by welding;

[0019] Step 4: Weld the connecting piece 1 at the other end of the battery cell to the single pole;

[0020] Step 5: Pass the single pole with the connecting piece 1 through the stop frame 1 and the integrated cover plate, and weld it to the pressing plate 1 of the integrated cover plate to form the integrated assembly 1;

[0021] Step 6: Weld the substrate 1 of the integrated component 1 and the other end of the aluminum shell into one body to obtain a new type of battery.

[0022] Beneficial effects of the present invention:

[0023] The present invention uses a single pole in an integrated component 1, so that during the welding process, there is no need to extend the connecting piece 1 connected thereto outside the aluminum shell for welding. Further, the connecting piece 1 after welding does not need to be folded into the aluminum shell, saving space inside the battery and further improving the energy density of the battery. In addition, an integrated cover plate is provided in the integrated component 1, and the substrate 1 and the pressure plate 1 are further combined together by nano injection molding to form a nano insulator. The nano insulator can be both insulating and weakly conductive, thereby preventing the battery aluminum shell from being charged due to the welding of the battery single pole and the pressure plate 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the new battery of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure connection of the new battery of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall structure of the integrated cover plate of the present invention;

[0028] Figure 4 This is a schematic cross-sectional structural diagram of an integrated component of the present invention;

[0029] Figure 5 yes Figure 1 A magnified schematic diagram of area A in the middle;

[0030] Figure 6 This is a structural schematic diagram of a pressing plate of the present invention;

[0031] Figure 7 This is a schematic structural diagram of a substrate according to the present invention;

[0032] Figure 8 This is a schematic structural diagram of the second substrate of the present invention;

[0033] Figure 9 is a schematic cross-sectional view of the second integrated assembly of the present invention;

[0034] Figure 10 yes Figure 1 Schematic diagram of the enlarged structure of area B in the middle.

[0035] In the figure: 1. Aluminum shell; 2. Integrated component 1; 21. Stop frame 1; 22. Integrated cover; 23. Single pole; 221. Base plate 1; 222. Nano insulator; 223. Press plate 1; 224. Explosion-proof valve; 2231. Serrated sinker 1; 2211. Serrated sinker 2; 3. Integrated component 2; 31. Stop frame 2; 32. Base plate 2; 33. Riveted pole; 34. Sealing ring; 35. Injection-molded insulator; 36. Press plate 2; 4. Battery cell; 41. Connecting piece 1; 42. Connecting piece 2. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0037] like Figure 4 and Figure 5 As shown, it is a new type of battery structure, which is an integrated component 2, and the integrated component 2 includes a stop frame 21, an integrated cover 22 and a single pole 23, wherein the integrated cover 22 is arranged on the outside of the stop frame 21, and the single pole 23 passes through the stop frame 21 and is welded with the integrated cover 22 to form an integrated component 2, and further the integrated cover 22 includes a substrate 221, a nano-insulator 222 and a pressure plate 223, the nano-insulator 222 is located between the substrate 221 and the pressure plate 223, wherein the substrate 221 and the pressure plate 223 are combined together by nano injection molding to form a nano-insulator 222, and the nano-insulator 222 can be insulating or weakly conductive, and the weak conductivity is that the resistance between the pressure plate 223 and the substrate 221 is 20-30000 ohms, and as shown Figure 6 and Figure 7 As shown, a serrated sink 2231 is provided on the bottom surface of the pressing plate 1 223, and a serrated sink 2211 is provided on the bottom surface of the substrate 1 221. By providing the serrated sink 1 2231 and the serrated sink 2 2211 in contact with the nano-insulator 222, the adhesion of the nano-insulator 222 during injection molding is increased, and bosses are extended on both sides of the pressing plate 1 223 to enhance the pulling force of the pressing plate 1 223. The integrated component 1 2 can be installed with the positive electrode of the battery cell 4 or with the negative electrode of the battery cell 4. Furthermore, an explosion-proof valve 224 is integrally provided on one side of the substrate 1 221.

[0038] By setting the single pole 23 in the integrated component 1 2, the integrated component 1 2 and the battery cell 4 can be conveniently welded, further saving the internal space of the battery and improving the energy density of the battery.

[0039] Further Figures 1-10 As shown, a new type of battery uses the above-mentioned new type of battery structure. The battery includes an aluminum shell 1, and two groups of battery cells 4 are installed inside the aluminum shell 1. An integrated component 1 2 is provided at one end of the battery cell 4 and is connected to the aluminum shell 1. An integrated component 2 3 is provided at the other end of the battery cell 4. Similarly, the integrated component 2 3 is connected to the aluminum shell 1. The integrated component 1 2 and the integrated component 2 3 are combined with the aluminum shell 1 by welding, and the two groups of battery cells 4 arranged inside are combined to form the new type of battery of the present application. The battery of the present application is a sheet battery. By adopting the above-mentioned integrated component 1 2, the energy density of the entire sheet battery is improved.

[0040] Further Figures 8-10 As shown, the integrated component 2 3 is a conventional battery structural component, which includes a stop frame 2 31, a base plate 2 32 is provided on the outside of the stop frame 2 31, an injection-molded insulator 35 is provided on the outside of the base plate 2 32, a pressure plate 2 36 is installed in the injection-molded insulator 35, and a riveted pole 33 is provided on the inside of the stop frame 2 31. The stop frame 2 31, the base plate 2 32, the injection-molded insulator 35 and the pressure plate 2 36 are riveted together by the riveted pole 33, wherein a sealing ring 34 is provided at the connection between the riveted pole 33 and the stop frame 2 31 for sealing protection.

[0041] Further Figure 5 and Figure 10 As shown, a connecting piece 1 41 and a connecting piece 2 42 are provided at both ends of the battery cell 4 respectively. The connecting piece 1 41 and the connecting piece 2 42 are connected to the integrated component 1 2 and the integrated component 2 3 correspondingly according to design requirements.

[0042] A further method of assembling the novel battery of the present invention comprises the following steps:

[0043] Step 1: Rivet the second stop frame 31, the second base plate 32, the sealing ring 34, the injection-molded insulator 35 and the second pressing plate 36 together to form the second integrated component 3 by riveting the pole 33;

[0044] Step 2: Fit the connecting pieces 2 42 at one end of the two battery cells 4 to each other, and then weld them to the riveted poles 33 of the integrated component 2 3 on the outside of the aluminum shell 1. The welding can be done by one or both of ultrasonic welding and laser welding.

[0045] Step 3: After step 2 is welded, the battery cell 4 is introduced into the aluminum shell 1, and the substrate 2 32 in the integrated component 2 3 is welded to one end of the aluminum shell 1 into one piece by welding;

[0046] Step 4: Weld the connecting piece 41 at the other end of the two battery cells 4 to the single pole 23. The welding can be done by ultrasonic welding or laser welding or both.

[0047] Step 5: Pass the single pole 23 welded with the connecting piece 41 through the stop frame 21 and the integrated cover 22, and weld it to the pressing plate 223 of the integrated cover 22 to form an integrated assembly 2;

[0048] Step 6: Weld the substrate 1 221 of the integrated component 2 and the other end of the aluminum shell 1 into one body to obtain a new type of battery.

[0049] By using the single pole 23 in the integrated component 2, the new battery eliminates the need to extend the connecting piece 41 connected thereto outside the aluminum shell 1 for welding during the welding process. Furthermore, the connecting piece 41 does not need to be folded into the aluminum shell 1 after welding, thereby saving space inside the battery and further improving the energy density of the battery.

[0050] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only 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 present invention, unless otherwise specified, "multiple" means two or more.

[0051] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0052] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A battery structural component, characterized in that: The battery structure is an integrated component (2); The integrated component 1 (2) includes a stop frame 1 (21), an integrated cover plate (22) and a single pole (23); The integrated cover plate (22) is arranged on the outside of the first stop frame (21), and the single pole (23) passes through the first stop frame (21) and is welded to the integrated cover plate (22); The integrated cover plate (22) includes a substrate (221), a nano-insulator (222) and a pressing plate (223), wherein the nano-insulator (222) is located between the substrate (221) and the pressing plate (223), and the substrate (221) and the pressing plate (223) are combined together by nano-injection molding to form the nano-insulator (222); The bottom surface of the first pressing plate (223) is provided with a sawtooth sink platform (2231), and the bottom surface of the first substrate (221) is provided with a sawtooth sink platform (2211). The first sawtooth sink platform (2231) and the second sawtooth sink platform (2211) are provided in contact with the nano-insulator (222), and bosses extend on both sides of the first pressing plate (223); an explosion-proof valve (224) is integrally provided on one side of the first substrate (221).

2. A battery, characterized in that: A battery structure as claimed in claim 1 is used, wherein the battery comprises an aluminum shell (1), a battery cell (4) is installed inside the aluminum shell (1), one end of the battery cell (4) is connected to an integrated component 1 (2), and an integrated component 2 (3) is provided at the other end of the battery cell (4), and the integrated component 1 (2) and the integrated component 2 (3) are welded together with the aluminum shell (1).

3. A battery according to claim 2, characterized in that: The battery cells (4) are provided in two groups.

4. A battery according to claim 2, characterized in that: The integrated component 2 (3) includes a stop frame 2 (31), a base plate 2 (32) is provided on the outside of the stop frame 2 (31), an injection molded insulator (35) is provided on the outside of the base plate 2 (32), a pressure plate 2 (36) is installed in the injection molded insulator (35), a riveted pole (33) is provided on the inside of the stop frame 2 (31), the stop frame 2 (31), the base plate 2 (32), the injection molded insulator (35) and the pressure plate 2 (36) are riveted together by the riveted pole (33), and a sealing ring (34) is provided at the connection between the riveted pole (33) and the stop frame 2 (31).

5. A battery according to claim 4, characterized in that: A connecting piece 1 (41) and a connecting piece 2 (42) are respectively provided at both ends of the battery core (4).

6. A battery assembly method, characterized in that: Applied to assembling the battery as claimed in claim 5, the assembly method comprises the following steps: Step 1: riveting the second stop frame (31), the second base plate (32), the sealing ring (34), the injection-molded insulator (35) and the second pressing plate (36) together by riveting the pole (33) to form the second integrated component (3); Step 2: align the second connecting piece (42) at one end of the battery cell (4) with each other, and then weld it to the riveted pole (33) of the second integrated component (3) on the outside of the aluminum shell (1); After the welding of step 3 and step 2 is completed, the battery cell (4) is introduced into the aluminum shell (1), and the second substrate (32) in the integrated component (3) and one end of the aluminum shell (1) are welded into one piece by welding; Step 4: Weld the connecting piece 1 (41) at the other end of the battery cell (4) to the single pole (23); Step 5: Pass the single pole (23) welded with the connecting piece 1 (41) through the stop frame 1 (21) and the integrated cover (22), and weld it to the pressing plate 1 (223) of the integrated cover (22) to form an integrated assembly 1 (2); Step 6: Weld the substrate 1 (221) of the integrated component 1 (2) and the other end of the aluminum shell (1) into one body to obtain a battery.

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