Material belt structure for producing battery substrate and battery substrate

Abstract

The utility model provides a material belt structure for producing a battery substrate and the battery substrate. The material belt structure for producing the battery substrates comprises a material belt body and a plurality of substrates arranged on the material belt body at intervals, the material belt body is provided with a plurality of separation grooves arranged at intervals, a connecting column is arranged between every two adjacent separation grooves, the separation grooves are used for separating every two adjacent substrates, and the connecting columns are used for connecting the substrates. Each substrate comprises a substrate body and an annular connecting piece, the connecting column is respectively and fixedly connected with the material belt body and the annular connecting piece, each substrate body is provided with a first through hole and a second through hole which are arranged at an interval, and the first through hole and the second through hole are used for a positioning column of a mold to penetrate through. According to the utility model, the through hole required by the product is used for positioning, so that a through hole for positioning does not need to be additionally formed in the material belt body, the area of the material belt is reduced, and the utilization rate of the material belt is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of material strip technology, and in particular to a material strip structure and a battery substrate for producing a battery substrate. Background Art

[0002] The battery substrate is a cover plate welded to the end of the battery aluminum shell. Usually, a conductive component is provided on the substrate to enable the conductive component to be conductive with the battery cell inside the aluminum shell. Since the stamping process has the characteristics of high efficiency and high yield, the battery substrate is generally prepared by the stamping process, that is, the metal strip is stamped through a mold to form a battery substrate of corresponding shape and structure.

[0003] For example, a Chinese patent with application number CN201810239575.7 discloses a method for pressing a battery cover, a raw material and a battery cover. The method is to place the raw material, i.e., a material strip, in a mold for pressing and punching operations, so that the material strip is formed into a substrate structure with a corresponding shape and hole position.

[0004] However, in the actual production process, since the material strip needs to be positioned when the mold is stamped, a fourth through hole needs to be opened on the material strip. Generally, the fourth through hole is set at the periphery of the material strip along the length direction to avoid interfering with the mold stamping the substrate in the middle area of ​​the material strip. However, if the fourth through hole is opened at the periphery of the material strip along the length direction, the width of the material strip must be increased while the area of ​​the formed substrate remains unchanged, which causes material waste, increases production costs, and has a low material utilization rate.

[0005] Therefore, there is an urgent need for a material strip structure that can reduce the material strip area and improve the material strip utilization rate. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a material strip structure and a battery substrate for producing a battery substrate, which can reduce the material strip area and improve the material strip utilization rate.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A material strip structure for producing a battery substrate, comprising:

[0009] A material strip body and a plurality of substrates spaced apart on the material strip body, the material strip body being provided with a plurality of spaced apart dividing grooves, a connecting column being provided between two adjacent dividing grooves, the dividing groove being used to separate two adjacent substrates, each of the substrates comprising a substrate body and an annular connecting member, the connecting column being fixedly connected to the material strip body and the annular connecting member respectively, each of the substrate bodies being provided with a first through hole and a second through hole spaced apart, the first through hole and the second through hole being used for the positioning column of the mold to pass through.

[0010] In one embodiment, the first through hole is circular in shape.

[0011] In one embodiment, the diameter of the first through hole is 1.5 cm-2 cm.

[0012] In one embodiment, the second through hole is circular.

[0013] In one embodiment, the diameter of the second through hole is 1.5 cm-2 cm.

[0014] In one of the embodiments, a receiving groove is further provided on the substrate, and a third through hole is provided on the groove wall of the receiving groove so that the receiving groove is communicated with the third through hole.

[0015] In one embodiment, the substrate body and the annular connecting member are an integrally formed structure.

[0016] In one of the embodiments, the material strip body is further provided with a plurality of fourth through holes arranged at intervals.

[0017] A battery substrate comprises the material strip structure for producing the battery substrate as described in any one of the above embodiments.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] The material strip structure used for producing battery substrates is provided with a plurality of spaced-apart dividing grooves, and a connecting column is provided between two adjacent dividing grooves. Two adjacent substrates are separated by the dividing grooves, and the connecting column is respectively connected to the substrate and the material strip body. During the die-cutting process, the substrate body is cut off from the annular connecting piece to obtain a finished substrate. Furthermore, a first through hole and a second through hole are provided on the substrate body, and during the stamping process, the positioning column of the mold passes through the first through hole and the second through hole respectively to achieve a positioning effect, that is, the through holes required on the product itself are used for positioning, so there is no need to open additional through holes on the material strip body for positioning, thereby reducing the area of ​​the material strip and improving the utilization rate of the material strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a material strip structure for producing a battery substrate according to an embodiment;

[0022] Figure 2 for Figure 1 The structure schematic diagram of the strip structure used for producing battery substrate after the strip body is cut off;

[0023] Figure 3 for Figure 2 The schematic diagram of a partial enlargement of the material strip structure used to produce battery substrates at point A is shown. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] The present disclosure provides a material strip structure for producing battery substrates, comprising a material strip body and a plurality of substrates spaced apart on the material strip body, the material strip body being provided with a plurality of spaced apart separation grooves, a connecting column being provided between two adjacent separation grooves, the separation groove being used to separate two adjacent substrates, each of the substrates comprising a substrate body and an annular connecting member, the connecting column being fixedly connected to the material strip body and the annular connecting member, respectively, and each of the substrate bodies being provided with a first through hole and a second through hole spaced apart, the first through hole and the second through hole being used for a positioning column of a mold to pass through.

[0028] The material strip structure used for producing battery substrates is provided with a plurality of spaced-apart dividing grooves, and a connecting column is provided between two adjacent dividing grooves. Two adjacent substrates are separated by the dividing grooves, and the connecting column is respectively connected to the substrate and the material strip body. During the die-cutting process, the substrate body is cut off from the annular connecting piece to obtain a finished substrate. Furthermore, a first through hole and a second through hole are provided on the substrate body, and during the stamping process, the positioning column of the mold passes through the first through hole and the second through hole respectively to achieve a positioning effect, that is, the through holes required on the product itself are used for positioning, so there is no need to open additional through holes on the material strip body for positioning, thereby reducing the area of ​​the material strip and improving the utilization rate of the material strip.

[0029] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0030] like Figures 1 to 3 As shown, a material strip structure 10 for producing battery substrates in one embodiment includes a material strip body 100 and a plurality of substrates 200 spaced apart on the material strip body 100, the material strip body 100 is provided with a plurality of spaced apart separation grooves 110, a connecting column 120 is provided between two adjacent separation grooves 110, the separation grooves 110 are used to separate two adjacent substrates 200, each of the substrates 200 includes a substrate body 210 and an annular connecting member 220, the connecting column 120 is fixedly connected to the material strip body 100 and the annular connecting member 220, each of the substrate bodies 210 is provided with a first through hole 211 and a second through hole 212 spaced apart, the first through hole 211 and the second through hole 212 are used for the positioning column of the mold to pass through.

[0031] In this embodiment, a plurality of spaced-apart dividing grooves 110 are first punched out of the material strip body 100, a substrate 200 is stamped out between two adjacent dividing grooves 110, and the substrate 200 is stamped a second time to form a substrate body 210 and an annular connector 220. At the same time, a first through hole 211 and a second through hole 212 are punched out on the substrate body 210, and both ends of the connecting column 120 are respectively connected to the annular connector 220 and the material strip body 100. During the die-cutting process, the positioning columns of the mold respectively pass through the first through hole 211 and the second through hole 212 to achieve a positioning and fixing effect, and the mold cuts the substrate body 210 from the annular connector 220 to obtain a finished substrate body 210. Furthermore, since the first through hole 211 and the second through hole 212 on the substrate body 210 themselves require through holes, that is, the first through hole 211 can be a pole hole for the pole to pass through, and the second through hole 212 can be an explosion-proof hole for welding an explosion-proof valve, positioning is performed by using the first through hole 211 and the second through hole 212 on the substrate body 210, so there is no need to open additional positioning holes on the material strip body 100, thereby reducing the material strip area and improving the material strip utilization rate.

[0032] The material strip structure 10 used for producing battery substrates is provided with a plurality of spaced-apart dividing grooves 110, and a connecting column 120 is provided between two adjacent dividing grooves 110. Two adjacent substrates 200 are separated by the dividing grooves 110, and the connecting column 120 is respectively connected to the substrate 200 and the material strip body 100. During the die-cutting process, the substrate body 210 is cut off from the annular connecting member 220 to obtain the finished substrate 200. Furthermore, a first through hole 211 and a second through hole 212 are provided on the substrate body 210, and during the stamping process, the positioning column of the mold passes through the first through hole 211 and the second through hole 212 respectively to achieve a positioning effect, that is, the through holes required on the product itself are used for positioning, so that there is no need to open additional through holes on the material strip body 100 for positioning, thereby reducing the area of ​​the material strip and improving the utilization rate of the material strip.

[0033] like Figure 3 As shown, in one embodiment, the first through hole 211 is circular. It can be understood that the first through hole 211 is adapted to the pole, and the pole is generally cylindrical, so the first through hole 211 is circular. Of course, in other embodiments, the first through hole 211 can also be other shapes such as a rectangle, but it is necessary to ensure that the pole and the first through hole 211 are adapted in shape.

[0034] In one embodiment, the diameter of the first through hole 211 is 1.5 cm-2 cm. In this embodiment, the diameter of the first through hole 211 is 1.5 cm, so that the size of the first through hole 211 is compatible with the pole.

[0035] like Figure 3As shown, in one embodiment, the second through hole 212 is circular. It can be understood that the second through hole 212 is used for welding the explosion-proof valve, that is, the shape of the explosion-proof valve is compatible with the second through hole 212. Of course, in other embodiments, the second through hole 212 can also be other shapes such as a rectangle, but it is necessary to ensure that the shape of the explosion-proof valve is compatible with the second through hole 212.

[0036] In one embodiment, the diameter of the second through hole 212 is 1.5 cm-2 cm. In this embodiment, the diameter of the second through hole 212 is 2 cm, so that the size of the second through hole 212 is compatible with the explosion-proof valve.

[0037] like Figure 3 As shown, in one embodiment, a receiving groove 230 is further provided on the substrate 200, and a third through hole 240 is provided on the groove wall of the receiving groove 230, so that the receiving groove 230 is connected with the third through hole 240. It can be understood that the third through hole 240 is used for the sealing nail to pass through, that is, after the battery is assembled, the electrolyte needs to be injected into the battery, and the electrolyte is injected through the third through hole 240 on the substrate 200. After the electrolyte is injected, the sealing nail passes through the third through hole 240 for sealing, and the sealing nail is welded to the groove wall of the receiving groove 230.

[0038] In one embodiment, the substrate body 210 and the annular connecting member 220 are an integrally formed structure. It can be understood that the substrate body 210 and the annular connecting member 220 are an integrally stamped structure.

[0039] like Figure 2 As shown, in one embodiment, the material strip body 100 is further provided with a plurality of fourth through holes 130 arranged at intervals. It can be understood that the fourth through holes 130 are used for positioning when the material strip body 100 punches out of the separation groove 110, and when the material strip body 100 punches out of the substrate body 210, since the substrate body 210 itself occupies the limit of the edge of the material strip body 100, the material strip body 100 needs to be cut off, and the fourth through holes 130 on the material strip body 100 are cut off synchronously, so that positioning is performed through the first through hole 211 and the second through hole 212 when the substrate 200 is subjected to the die-cutting process.

[0040] The present application also provides a battery substrate 200 , comprising the material strip structure 10 for producing a battery substrate as described in any of the above embodiments.

[0041] Compared with the prior art, the present invention has at least the following advantages:

[0042] The material strip structure 10 used for producing battery substrates is provided with a plurality of spaced-apart dividing grooves 110, and a connecting column 120 is provided between two adjacent dividing grooves 110. Two adjacent substrates 200 are separated by the dividing grooves 110, and the connecting column 120 is respectively connected to the substrate 200 and the material strip body 100. During the die-cutting process, the substrate body 210 is cut off from the annular connecting member 220 to obtain the finished substrate 200. Furthermore, a first through hole 211 and a second through hole 212 are provided on the substrate body 210, and during the stamping process, the positioning column of the mold passes through the first through hole 211 and the second through hole 212 respectively to achieve a positioning effect, that is, the through holes required on the product itself are used for positioning, so that there is no need to open additional through holes on the material strip body 100 for positioning, thereby reducing the area of ​​the material strip and improving the utilization rate of the material strip.

[0043] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A material strip structure for producing battery substrates, comprising a material strip body and a plurality of substrates spaced apart on the material strip body, characterized in that: The material strip body is provided with a plurality of spaced-apart dividing grooves, and a connecting column is provided between two adjacent dividing grooves. The dividing groove is used to separate two adjacent substrates. Each substrate includes a substrate body and an annular connecting piece. The connecting column is fixedly connected to the material strip body and the annular connecting piece, respectively. Each substrate body is provided with a first through hole and a second through hole spaced-apart. The first through hole and the second through hole are used for the positioning column of the mold to pass through.

2. The strip structure for producing a battery substrate according to claim 1, characterized in that: The first through hole is circular in shape.

3. The material strip structure for producing a battery substrate according to claim 2, characterized in that: The diameter of the first through hole is 1.5 cm-2 cm.

4. The material strip structure for producing a battery substrate according to claim 1, characterized in that: The second through hole is circular in shape.

5. The material strip structure for producing a battery substrate according to claim 4, characterized in that: The diameter of the second through hole is 1.5 cm-2 cm.

6. The material strip structure for producing a battery substrate according to claim 1, characterized in that: The substrate body is also provided with a receiving groove, and a third through hole is provided on the groove wall of the receiving groove so that the receiving groove is connected with the third through hole.

7. The material strip structure for producing a battery substrate according to claim 1, characterized in that: The substrate body and the annular connecting piece are an integrally formed structure.

8. The material strip structure for producing a battery substrate according to claim 1, characterized in that: The material strip body is further provided with a plurality of fourth through holes arranged at intervals.

9. A battery substrate, characterized in that: A material strip structure for producing a battery substrate comprising any one of claims 1 to 8.

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