Improved battery electrode structure

Abstract

The utility model belongs to the technical field of battery structure, concretely relates to an improved battery electrode structure, including positive pole structure and negative pole structure, positive pole structure and negative pole structure are arranged at the both ends of battery respectively, be provided with positioning assembly between positive pole structure and negative pole structure, the positive pole structure includes cover plate, the outer wall of cover plate is fixedly connected with positive pole connecting piece no. 1, the conductive column is fixedly connected with positive pole connecting piece no. 2 at the end away from positive pole connecting piece no. 1, and positive pole connecting piece no. 1 and positive pole connecting piece no. 2 are elastically connected through disc spring. The positive pole structure of the improved battery electrode structure is slidably fitted with multiple conductive columns and connecting grooves, forms multiple-point conductive path, reduces the problem of increased internal resistance caused by poor contact of traditional electrode. The elastic connection of disc spring can buffer the volume change of electrode in charge and discharge cycle, ensure that positive pole connecting piece no. 2 and notch are always in close contact, maintain the stability of conduction.

Description

Technical Field

[0001] This utility model relates to the field of battery structure technology, specifically to an improved battery electrode structure. Background Technology

[0002] Lithium batteries have a wide range of applications. Among them, cylindrical lithium batteries are particularly popular due to their advantages such as high operating voltage, long storage life, wide operating temperature range, convenient use and maintenance, and strong adaptability. From an external perspective, a cylindrical lithium battery has a raised terminal and a metal casing surrounding the terminal. The raised terminal serves as the positive electrode, and the metal casing serves as the negative electrode. Electrical devices are connected to the raised terminal and the metal casing for operation.

[0003] Currently, when connecting the positive and negative terminals of a battery, the protrusion of the positive terminal is usually placed against the negative terminal to achieve the connection. However, due to the elasticity of the positive and negative terminals, this elastic design can cause them to slide and misalign during connection, resulting in a short circuit. Therefore, an improved battery electrode structure is proposed. Utility Model Content

[0004] The main objective of this invention is to provide an improved battery electrode structure that can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention proposes an improved battery electrode structure, comprising a positive electrode structure and a negative electrode structure, wherein the positive electrode structure and the negative electrode structure are respectively disposed at both ends of the battery, and a positioning component is disposed between the positive electrode structure and the negative electrode structure. The positive electrode structure includes:

[0006] A cover plate, on the outer wall of which a positive electrode connector is fixedly connected;

[0007] A conductive post is provided, with a positive electrode connector two fixedly connected to the end of the conductive post away from the positive electrode connector one. The positive electrode connector one and the positive electrode connector two are elastically connected by a disc spring.

[0008] Preferably, a connecting groove is formed on the outer wall of the positive electrode connector, and the connecting groove matches the conductive post.

[0009] Preferably, multiple sets of conductive posts and connecting grooves are provided, and the conductive posts are in contact with the connecting grooves when they slide in the connecting grooves.

[0010] Preferably, the diameters of the first positive electrode connector and the second positive electrode connector are equal.

[0011] Preferably, the outer wall of the negative electrode structure has a notch, which matches the positive electrode connector.

[0012] Preferably, the positioning component includes a protective sleeve that is fitted over the outside of the cover plate, and the protective sleeve is elastically connected to the retaining ring via a return spring.

[0013] Preferably, when the reset spring is in the reset state, the top height of the protective sleeve is higher than the top height of the positive electrode connector, and the fixing ring is fixedly connected to the outer wall of the battery.

[0014] This invention provides an improved battery electrode structure. It has the following advantages:

[0015] (1) The positive electrode structure of this improved battery electrode structure forms a multi-point conductive path through the sliding contact of multiple sets of conductive pillars and connecting grooves, reducing the problem of increased internal resistance caused by poor contact in traditional electrodes. The elastic connection of the disc spring can buffer the volume change of the electrode during charge and discharge cycles, ensuring that the positive electrode connector and the notch are always in close contact, maintaining conductivity stability.

[0016] (2) The improved battery electrode structure uses a positioning component. Under the action of the reset spring, the protective sleeve is normally higher than the positive electrode connector 2, which can isolate the damage to the electrode connection part caused by external collision. At the same time, the protective sleeve can position the connected battery. With the matching design of the notch and the positive electrode connector 2, the positive and negative electrode structures are accurately aligned, reducing poor contact caused by misalignment and improving the overall reliability of the battery structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the positive electrode structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the compression and reset spring structure of the protective sleeve of this utility model.

[0022] Explanation of icon numbers:

[0023] 1. Positive electrode structure; 2. Negative electrode structure; 3. Positioning component; 101. Cover plate; 102. Positive electrode connector one; 103. Connecting groove; 104. Disc spring; 105. Conductive post; 106. Positive electrode connector two; 21. Notch; 31. Protective sleeve; 32. Fixing ring; 33. Return spring.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This utility model proposes an improved battery electrode structure, including a positive electrode structure 1 and a negative electrode structure 2, which are respectively disposed at both ends of the battery, and a positioning component 3 is disposed between the positive electrode structure 1 and the negative electrode structure 2.

[0027] In this embodiment of the utility model, in order to ensure a stable connection between the positive electrode structure 1 and the negative electrode structure 2, the positive electrode structure 1 specifically includes a cover plate 101 and a conductive post 105. A positive electrode connector 102 is fixedly connected to the outer wall of the cover plate 101, and a positive electrode connector 206 is fixedly connected to the end of the conductive post 105 away from the positive electrode connector 102. The positive electrode connector 102 and the positive electrode connector 206 are elastically connected by a disc spring 104. A connecting groove 103 is provided on the outer wall of the positive electrode connector 102, and the connecting groove 103 matches the conductive post 105. Both the conductive post 105 and the connecting groove 103 are provided with multiple When the conductive post 105 slides in the connecting groove 103, it is in contact with the connecting groove 103. The diameters of the positive electrode connector 102 and the positive electrode connector 106 are equal. A notch 21 is provided on the outer wall of the negative electrode structure 2. The notch 21 matches the positive electrode connector 106. Through the sliding contact of multiple sets of conductive posts 105 with the connecting groove 103, a multi-point conductive path is formed, which reduces the problem of increased internal resistance caused by poor contact of traditional electrodes. After the positive electrode connector 106 abuts against the notch 21, under the action of the disc spring 104, it is ensured that the positive electrode connector 106 and the notch 21 are always in close contact, maintaining conductive stability.

[0028] Furthermore, to further ensure the stability of the connection between the positive electrode structure 1 and the negative electrode structure 2, the positioning component 3 specifically includes a protective sleeve 31. The protective sleeve 31 is fitted onto the outside of the cover plate 101. The protective sleeve 31 is elastically connected to the fixing ring 32 via a return spring 33. When the return spring 33 is in the reset state, the top height of the protective sleeve 31 is higher than the top height of the positive electrode connector 106. The fixing ring 32 is fixedly connected to the outer wall of the battery. Under the action of the return spring 33, the protective sleeve 31 is normally higher than the positive electrode connector 106, which can isolate the electrode connection part from external collisions. At the same time, during the battery connection process, the protective sleeve 31 moves to compress the return spring 33. After the battery is connected, the protective sleeve 31 is released. Under the action of the return spring 33, the protective sleeve 31 positions the battery. With the matching design of the notch 21 and the positive electrode connector 106, the positive electrode structure 1 and the negative electrode structure 2 are accurately aligned, reducing poor contact caused by misalignment and improving the overall structural reliability of the battery.

[0029] In use, first move the protective sleeve 31 to compress the return spring 33 so that the battery is connected. Then release the protective sleeve 31. Under the action of the return spring 33, the protective sleeve 31 positions the battery. With the matching design of the notch 21 and the positive terminal connector 2 106, the positive terminal structure 1 and the negative terminal structure 2 are accurately aligned. After the positive terminal connector 2 106 and the notch 21 abut against each other, under the action of the disc spring 104, the positive terminal connector 2 106 and the notch 21 are always in close contact.

[0030] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An improved battery electrode structure, comprising a positive electrode structure (1) and a negative electrode structure (2), characterized in that: The positive electrode structure (1) and the negative electrode structure (2) are respectively disposed at both ends of the battery, and a positioning component (3) is disposed between the positive electrode structure (1) and the negative electrode structure (2). The positive electrode structure (1) includes: A cover plate (101) has a positive electrode connector (102) fixedly connected to its outer wall. A conductive post (105) is fixedly connected to a positive electrode connector (106) at one end away from the positive electrode connector (102). The positive electrode connector (102) and the positive electrode connector (106) are elastically connected by a disc spring (104).

2. The improved battery electrode structure according to claim 1, characterized in that: A connecting groove (103) is provided on the outer wall of the positive electrode connector (102), and the connecting groove (103) matches the conductive post (105).

3. The improved battery electrode structure according to claim 2, characterized in that: Multiple sets of conductive posts (105) and connecting grooves (103) are provided. When the conductive posts (105) slide in the connecting grooves (103), they are in contact with the connecting grooves (103).

4. The improved battery electrode structure according to claim 1, characterized in that: The diameters of the first positive electrode connector (102) and the second positive electrode connector (106) are equal.

5. An improved battery electrode structure according to claim 1, characterized in that: The negative electrode structure (2) has a notch (21) on its outer wall, which matches the positive electrode connector (106).

6. An improved battery electrode structure according to claim 5, characterized in that: The positioning component (3) includes a protective sleeve (31), which is fitted onto the outside of the cover plate (101). The protective sleeve (31) is elastically connected to the fixing ring (32) by a return spring (33).

7. An improved battery electrode structure according to claim 6, characterized in that: When the reset spring (33) is in the reset state, the top height of the protective sleeve (31) is higher than the top height of the positive electrode connector (106), and the fixing ring (32) is fixedly connected to the outer wall of the battery.

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