Battery and electronic device

By designing an integrally molded or welded connection between the first and second plates in the hard-shell battery, the problems of high molding difficulty and low sealing performance are solved, realizing a low-cost, high-sealing battery casing structure, and improving the stability and lifespan of the battery.

CN223566735UActive Publication Date: 2025-11-18惠州赣锋锂电科技有限公司
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Patent Information

Application Number
CN202422864293.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-11-18
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

The existing hard-shell battery has a difficult molding process for the second plate, resulting in low sealing performance, high processing costs, and insufficient reliability.

Method used

The design adopts the connection between the first and second plates, and forms the receiving cavity by integral molding or welding, which simplifies the processing technology and improves the sealing performance and rigidity of the shell structure.

Benefits of technology

It reduces processing costs, improves the sealing and stability of the battery casing, and enhances the battery's impact resistance and lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery which comprises a shell structure and a battery cell arranged in the shell structure, the shell structure comprises a first plate piece and a second plate piece, a pole is arranged on the first plate piece or the second plate piece, the first plate piece and the second plate piece are connected to form a connecting position, and the first plate piece and the second plate piece are connected to form the connecting position. The joints of the first plate and the second plate are mutually connected to form an accommodating cavity, and the battery cell is arranged in the accommodating cavity. According to the battery disclosed by the utility model, all parts of the shell structure only need to be bent in the machining process, actions such as metal stamping and stretching are avoided, the required mold is simple, and the cost is greatly reduced. In addition, the utility model also provides an electronic device adopting the battery.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of battery and electronic device. BACKGROUND

[0002] Battery is widely applied in various wearable, wireless communication products and the like due to the advantages of compact design, high energy density, better stability, high safety and the like, with length from 5mm to 300mm, thickness from 0.8mm to 20mm; square hard shell cell is widely applied in various electronic devices and emergency power supply, such as mobile phone, watch, tablet computer, wireless communication device, electric tool, electric vehicle and the like.

[0003] Battery has very broad application prospect, and is usually sealed using shell + lamination / winding. The shell structure includes two plate members, and the plate members are simple in machining process and high in sealing reliability. The accommodating cavity formed by the two plate members is used for accommodating bare cell, and one of the plate members has a pole.

[0004] Please refer to Figure 1 The shell structure of hard-shell battery includes first plate member 1, second plate member 2 and third plate member 4. The accommodating cavity formed by the first plate member 1 and the second plate member 2 is used for accommodating bare cell 3. The second plate member 2 has two openings, which form a sealed cavity with the first plate member 1 and the third plate member 4 respectively. At least one end of the second plate member 2 is connected. On the one hand, the forming process of the second plate member 2 is difficult. On the other hand, the sealing rate between the first plate member 1 and the second plate member 2 and between the third plate member 4 and the second plate member 2 is low. SUMMARY

[0005] The utility model discloses a kind of battery and electronic device to solve the above technical problem.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] First, the utility model provides a kind of battery, including shell structure and the cell in the shell structure, the shell structure includes first plate member and second plate member, the first plate member or the second plate member is provided with pole, the first plate member and the second plate member are connected to form junction, the junction of the first plate member and the second plate member are connected to form accommodating cavity, and the cell is arranged in the accommodating cavity.

[0008] Further, the first plate member is provided with first face body, second face body at one end of the first face body, and third face body and fourth face body located at two sides of the first face body respectively, the first face body includes third junction, the second face body includes sixth junction, the third face body includes fourth junction and fifth junction, and the fourth face body includes first junction and second junction.

[0009] Further, the second plate member is provided with a fifth face body and a sixth face body arranged at one end of the fifth face body, the sixth face body can cooperate with the other end of the second face body, the fifth face body comprises a seventh connecting portion, an eighth connecting portion and a ninth connecting portion, and the sixth face body comprises a tenth connecting portion, an eleventh connecting portion and a twelfth connecting portion.

[0010] Further, the first face body and the second face body are integrally formed or welded.

[0011] Further, the first face body and the third face body are integrally formed or welded.

[0012] Further, the first face body and the fourth face body are integrally formed or welded.

[0013] Further, the fifth face body and the sixth face body are integrally formed or welded.

[0014] Further, the first plate member and the second plate member are welded.

[0015] Further, the thickness of the first plate member and the second plate member ranges from 0.03mm to 0.5mm.

[0016] Further, the thickness of the first plate member and the second plate member ranges from 0.05mm to 0.35mm.

[0017] Further, the pole is arranged on the first plate member, and the thickness of the first plate member is greater than that of the second plate member.

[0018] In a second aspect, the utility model also provides an electronic device, the electronic device includes the battery of any one of the above.

[0019] In summary, the utility model has the advantages of:

[0020] The battery and the electronic device adopting the battery have the shell structure comprising a first plate member and a second plate member, the first plate member is provided with a first face body, a second face body, a third face body and a fourth face body, the second plate member is provided with a fifth face body and a sixth face body, the first plate member and the second plate member are provided with connecting portions connected with the face bodies, and the connecting portions of the first plate member and the second plate member are connected with each other to form a containing cavity for containing a bare battery cell.

[0021] The battery and the electronic device adopting the battery have the shell structure, the processing technology of each component of the shell structure only needs to be bent, without metal stamping, stretching and other actions, and the required mold is simple, so that the cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an exploded view of an existing battery;

[0023] Figure 2 is an exploded view of the battery of the utility model;

[0024] Figure 3 is Figure 2 is a structural schematic view of the first plate of the battery shown in the figure;

[0025] Figure 4 is Figure 2 is a structural schematic view of the second plate of the battery shown in the figure.

[0026] ACCOMPANYING DRAWINGS

[0027] First plate 11, second plate 12, battery cell 13, first face body 101, second face body 102, third face body 103, fourth face body 104, first connecting place 201, second connecting place 202, third connecting place 203, fourth connecting place 204, fifth connecting place 205, sixth connecting place 206, fifth face body 301, sixth face body 302, seventh connecting place 401, eighth connecting place 402, ninth connecting place 403, tenth connecting place 404, eleventh connecting place 405, twelfth connecting place 406. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Please refer to Figures 2-4 The utility model provides a kind of battery, including shell structure and the battery cell 13 in the shell structure, the first plate or the second plate is provided with pole, the first plate is connected with the second plate and forms connecting place, the connecting place of the first plate and the second plate is connected to form containing cavity, the battery cell is set in the containing cavity.

[0030] In an embodiment, the first plate is provided with first face body 101, second face body 102 at one end of the first face body, and third face body 103 and fourth face body 104 are located at the two sides of the first face body respectively, the first face body includes third connecting place 203, the second face body includes sixth connecting place 206, the third face body includes fourth connecting place 204 and fifth connecting place 205, and the fourth face body includes first connecting place 201 and second connecting place 202.

[0031] In one embodiment, the second plate is provided with a fifth face body 301 and a sixth face body 302 at one end of the fifth face body, the sixth face body being capable of cooperating with the other end of the second face body, the fifth face body comprising a seventh connecting portion 401, an eighth connecting portion 402 and a ninth connecting portion 403, and the sixth face body comprising a tenth connecting portion 404, an eleventh connecting portion 405 and a twelfth connecting portion 406.

[0032] In one embodiment, the first face body and the second face body are integrally formed or welded;

[0033] and / or, the first face body and the third face body are integrally formed or welded;

[0034] and / or, the first face body and the fourth face body are integrally formed or welded.

[0035] In one embodiment, the fifth face body and the sixth face body are integrally formed or welded.

[0036] It can be understood that the integrally formed or welded between different face bodies can improve the hardness of the shell structure, thereby improving the use stability and life of the battery.

[0037] In one embodiment, the first plate and the second plate are welded.

[0038] In one embodiment, the thickness of the first plate and the second plate ranges from 0.03mm to 0.5mm, which can ensure that the shell does not deform when subjected to external force impact or battery drop.

[0039] In one embodiment, the thickness of the first plate and the second plate ranges from 0.05mm to 0.35mm, which can ensure that the shell does not deform when subjected to external force impact or battery drop, and can maximize the space of the accommodating cavity, and the accommodating cavity can accommodate more positions of the battery cell.

[0040] In one embodiment, the thickness of the first plate is greater than the thickness of the second plate, which can prevent deformation at the position of the installed pole when the pole is installed on the first plate.

[0041] The utility model discloses a battery and electronic device adopting the battery, shell structure includes first board piece and second board piece, is provided with first face body, second face body, third face body, fourth face body on the first board piece, the second board piece is provided with fifth face body, sixth face body, is provided with the connecting place of face body connection on the first board piece, second board piece, and the accommodating cavity that first board piece, second board piece connecting place interconnects forms is used to accommodate bare battery core. The first board piece, second board piece processing technology is simple, and the cost is lower and is easy to seal.

[0042] The utility model discloses a battery and electronic device adopting the battery, the processing technology of each part of shell structure only must bend, does not have metal stamping, stretching etc. action, and the simple mould needed, greatly reduces the cost.

[0043] Finally, it should be pointed out that the above examples are only used to illustrate the technical solutions of the utility model and not to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the utility model.

Claims

1. A battery, characterized by, The battery includes a shell structure and an electric core arranged in the shell structure, the shell structure includes a first plate and a second plate, a pole is arranged on the first plate or the second plate, the first plate and the second plate are connected to form a connection, and the connection of the first plate and the second plate are connected to form a receiving cavity, and the electric core is arranged in the receiving cavity.

2. The battery of claim 1, wherein, The first plate is provided with a first face, a second face arranged at one end of the first face, and a third face and a fourth face respectively located at two sides of the first face, the first face includes a third connection, the second face includes a sixth connection, the third face includes a fourth connection and a fifth connection, and the fourth face includes a first connection and a second connection.

3. The battery of claim 2, wherein the cathode comprises a lithium metal oxide. The second plate is provided with a fifth face and a sixth face arranged at one end of the fifth face, the sixth face can cooperate with the other end of the second face, the fifth face includes a seventh connection, an eighth connection and a ninth connection, and the sixth face includes a tenth connection, an eleventh connection and a twelfth connection.

4. The battery of claim 2, wherein the cathode comprises a lithium metal oxide. The first face and the second face are integrally formed or welded; And / or, the first face and the third face are integrally formed or welded; And / or, the first face and the fourth face are integrally formed or welded.

5. The battery of claim 3, wherein the cathode comprises a cathode active material, a cathode binder, and a cathode conductive agent. The fifth face and the sixth face are integrally formed or welded.

6. The battery of claim 1, wherein the cathode comprises a lithium metal oxide. The first plate and the second plate are welded.

7. The battery of claim 1, wherein the cathode comprises a lithium metal oxide. The thickness of the first plate and the second plate ranges from 0.03mm to 0.5mm.

8. The battery of claim 1, wherein the cathode comprises a lithium metal oxide. The thickness of the first plate and the second plate ranges from 0.05mm to 0.35mm.

9. The battery of claim 1, wherein the cathode comprises a lithium metal oxide. The pole is arranged on the first plate, and the thickness of the first plate is greater than the thickness of the second plate.

10. An electronic device, comprising: The electronic device includes the battery as claimed in any one of claims 1 to 9.