Electrode group structure for improving discharge performance

Abstract

This invention provides an electrode group structure for improving discharge performance, belonging to the field of battery technology. Its structure includes: several partition walls fixedly connected inside the battery case, dividing the internal space of the battery case into several cavities; a battery cover fixedly connected to the upper end of the battery case; and several positioning grooves provided at the lower end of the battery cover. When the battery cover is fixed to the upper end of the battery case, each of the positioning grooves is respectively engaged with its corresponding cavity. A negative electrode plate, a separator, and a positive electrode plate are sequentially stacked inside the cavity to form an electrode group. Busbars are provided on the electrode group, and each busbar is connected by a connecting neck in a U-shape spanning the partition walls. An inner groove is provided at the lower end of the battery cover to accommodate the connecting neck, and a positioning sleeve is fixed in the inner groove. This technical solution uses a partitioned cavity to ensure the uniformity of the electrode group distribution and utilizes U-shaped connecting necks to connect the busbars into a whole, avoiding over-discharge or over-charging of some electrode groups, thereby extending the discharge performance and service life of the battery.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to an electrode group structure that improves discharge performance. Background Technology

[0002] A battery electrode group is a battery component consisting of positive and negative plates and separators, commonly referred to as a combined plate group. The electrode group plays a crucial role in a battery, mainly including the following aspects: Structure: The electrode group consists of several alternately stacked positive and negative plates. The top surface of the positive plates has positive tabs, and the top surface of the negative plates has negative tabs. The positive tabs within the same electrode group are connected in series via a positive bus, and the negative tabs are connected in series via a negative bus. Function: The electrode group is the core component of the battery, responsible for storing and releasing electrical energy. The positive and negative plates generate current through a chemical reaction, while the separator prevents direct contact between the positive and negative electrodes, avoiding short circuits and absorbing electrolyte. Electrode groups are widely used in various types of batteries, including lead-acid batteries and lithium-ion batteries. In lead-acid batteries, the structure and performance of the electrode group directly affect the battery's capacity, lifespan, and discharge characteristics. Currently, the discharge performance of conventional electrode group structures still has room for improvement. Summary of the Invention

[0003] The technical problem to be solved by this invention is: how to improve the discharge performance of the battery electrode group structure.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] An electrode group structure for improving discharge performance includes a battery case, a battery cover, a cavity, a negative electrode plate, a positive electrode plate, a separator, a busbar, a connecting neck, and partition walls. Several partition walls are fixedly connected inside the battery case, dividing the internal space of the battery case into several cavities. The battery cover is fixedly connected to the upper end of the battery case, and several positioning grooves are provided at the lower end of the battery cover. When the battery cover is fixed to the upper end of the battery case, each positioning groove is respectively engaged with its corresponding cavity. The negative electrode plate, separator, and positive electrode plate are sequentially stacked inside the cavity to form an electrode group. A busbar is provided on the electrode group, and each busbar is connected via a connecting neck. The connecting neck is U-shaped and spans the partition walls. An inner groove for accommodating the connecting neck is provided at the lower end of the battery cover, and a positioning sleeve is fixedly connected in the inner groove. The connecting neck is inserted into the positioning sleeve. Terminals are provided on the busbars, and the terminals protrude through the battery cover.

[0006] Busbar connection: When the pole is placed in the welding fixture, the pole group is welded to form a busbar with the pole. The pole is then welded to achieve busbar connection.

[0007] Preferably, a mounting groove is fixedly connected to the bottom of the cavity, and the electrode group is fixedly connected in the mounting groove.

[0008] Preferably, a protective plate is fixedly installed on the top of each electrode group, and the connecting neck is held above the protective plate. The protective plate prevents the electrode plate from contacting the busbar or terminal post, thus preventing short circuits.

[0009] Preferably, the battery compartment has a slot and the battery cover has a clip, the clip and the slot being locked together.

[0010] Preferably, a bolt connects the battery cover and the battery compartment, the bolt passing through the battery cover and fastened in a threaded hole at the upper end of the battery compartment. The terminal has a built-in threaded copper core, which is connected to the load and supplies power to it.

[0011] Preferably, a bracket is fixedly connected to the partition wall, and at least a portion of the busbar is supported on the bracket.

[0012] In the above technical solution, the battery compartment is the external structure of this utility model, and the battery cover is snapped into the battery compartment to form a closed structure. Inside the battery compartment, this utility model utilizes partition walls to construct a multi-cavity structure. The electrode groups within the cavities include negative plates, separators, and positive plates stacked sequentially. The multi-cavity structure ensures a uniform distribution of the electrode groups, guaranteeing the uniformity of discharge. Furthermore, this utility model abandons the distributed busbar, using connecting necks spanning the partition walls to connect the busbars into a whole. This ensures a balanced current distribution among the electrode groups, preventing over-discharge or over-charging of some electrode groups, thereby extending the battery's discharge performance and lifespan. Additionally, this utility model constructs multiple positioning grooves on the underside of the battery cover, which respectively cooperate with the cavities, and provides positioning sleeves to position the connecting necks of the busbars, ensuring the compactness and stability of the structure.

[0013] This invention provides an electrode group structure for improving discharge performance. The technical solution employs a partitioned cavity to ensure the uniformity of electrode group distribution and utilizes U-shaped connecting necks to connect the busbars into a whole, preventing over-discharge or over-charging of some electrode groups, thereby extending the battery's discharge performance and lifespan. Connecting multiple electrode groups into a single unit can increase battery voltage, reduce the number of batteries required for system voltage configuration, reduce floor space, and save space; it also increases battery capacity and power, and enhances its discharge performance. Attached Figure Description

[0014] Figure 1 This is a half-sectional view of the present invention;

[0015] Figure 2 This is a partial view of the present invention;

[0016] Figure 3 This is a partial top view of the present invention;

[0017] In the picture:

[0018] Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, those skilled in the art will understand that with technological development and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0020] In the description of this application, it should be understood that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0021] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0022] Example 1

[0023] An electrode group structure to improve discharge performance, such as Figures 1-3 As shown, the battery includes a battery compartment 1, a battery cover 2, a cavity 3, a negative electrode plate 4, a positive electrode plate 5, a separator 6, a busbar 7, a connecting neck 8, and a partition wall 9. Several partition walls 9 are fixedly connected inside the battery compartment 1, dividing the internal space of the battery compartment 1 into several cavities 3. The battery cover 2 is fixedly connected to the upper end of the battery compartment 1, and several positioning grooves are provided at the lower end of the battery cover 2. When the battery cover 2 is fixed to the upper end of the battery compartment 1, each positioning groove is respectively engaged with each cavity 3. The negative electrode plate 4, separator 6, and positive electrode plate 5 are stacked sequentially inside the cavity 3 to form an electrode group. A busbar 7 is provided on the electrode group, and each busbar 7 is connected by a connecting neck 8. The connecting neck 8 is U-shaped and spans the partition wall 9. An inner groove is provided at the lower end of the battery cover 2 to accommodate the connecting neck 8. A positioning sleeve is fixedly connected in the inner groove, and the connecting neck 8 is inserted into the positioning sleeve. A terminal is provided on the busbar 7, and the terminal passes through the battery cover 2.

[0024] In the above technical solution, the battery compartment 1 is the external structure of this utility model, and the battery cover 2 is snapped into the battery compartment 1 to form a closed structure. Inside the battery compartment 1, this utility model utilizes the partition wall 9 to construct a multi-cavity structure 3. The electrode group within the cavity 3 includes a negative electrode plate 4, a separator 6, and a positive electrode plate 5 stacked sequentially. The multi-cavity structure 3 ensures a uniform distribution of the electrode group, guaranteeing the uniformity of discharge. Furthermore, this utility model abandons the distributed busbar 7 and uses a connecting neck 8 spanning the partition wall 9 to connect the busbar 7 into a whole, which can ensure that the current among the electrode groups is evenly distributed, avoiding over-discharge or over-charging of some electrode groups, thereby extending the discharge performance and service life of the battery. In addition, this utility model constructs multiple positioning grooves on the lower side of the battery cover 2, which respectively cooperate with the cavity 3, and sets positioning sleeves to position the connecting neck 8 of the busbar 7, ensuring the compactness and stability of the structure.

[0025] Example 2

[0026] An electrode group structure to improve discharge performance, such as Figures 1-3 As shown, the battery includes a battery compartment 1, a battery cover 2, a cavity 3, a negative electrode plate 4, a positive electrode plate 5, a separator 6, a busbar 7, a connecting neck 8, and a partition wall 9. Several partition walls 9 are fixedly connected inside the battery compartment 1, dividing the internal space of the battery compartment 1 into several cavities 3. The battery cover 2 is fixedly connected to the upper end of the battery compartment 1, and several positioning grooves are provided at the lower end of the battery cover 2. When the battery cover 2 is fixed to the upper end of the battery compartment 1, each positioning groove is respectively engaged with each cavity 3. The negative electrode plate 4, separator 6, and positive electrode plate 5 are stacked sequentially inside the cavity 3 to form an electrode group. A busbar 7 is provided on the electrode group, and each busbar 7 is connected by a connecting neck 8. The connecting neck 8 is U-shaped and spans the partition wall 9. An inner groove is provided at the lower end of the battery cover 2 to accommodate the connecting neck 8. A positioning sleeve is fixedly connected in the inner groove, and the connecting neck 8 is inserted into the positioning sleeve. A terminal is provided on the busbar 7, and the terminal passes through the battery cover 2. A mounting groove is fixedly connected to the bottom of the cavity 3, and the electrode group is fixedly connected to the mounting groove. A protective plate is fixedly installed on the top of each electrode group, and the connecting neck 8 is held above the protective plate. A slot is provided on the battery compartment 1, and a clip is provided on the battery cover 2. The clip and the slot are locked together. A bolt is connected between the battery cover 2 and the battery compartment 1. The bolt passes through the battery cover 2 and is fastened in the threaded hole at the upper end of the battery compartment 1. A bracket is fixedly connected to the partition wall 9, and at least a portion of the busbar 7 is supported on the bracket.

[0027] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0028] It should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art can certainly extract some of the features as individual embodiments when reading this application.

[0029] It should be understood that the embodiments disclosed herein are illustrative of the principles of this application. Other modified embodiments are also within the scope of this application. The embodiments disclosed herein are merely examples and not limitations, and the embodiments of this application are not limited to the embodiments precisely described above.

Claims

1. An electrode group structure for improving discharge performance, characterized by The battery includes a battery compartment (1), a battery cover (2), a cavity (3), a negative electrode plate (4), a positive electrode plate (5), a separator (6), a busbar (7), a connecting neck (8), and a partition wall (9). Several partition walls (9) are fixedly connected inside the battery compartment (1), dividing the internal space of the battery compartment (1) into several cavities (3). A battery cover (2) is fixedly connected to the upper end of the battery compartment (1), and several positioning grooves are provided at the lower end of the battery cover (2). When the battery cover (2) is fixed to the upper end of the battery compartment (1), each of the positioning grooves... The negative electrode plate (4), the separator (6), and the positive electrode plate (5) are stacked in sequence inside the cavity (3) to form an electrode group. A busbar (7) is provided on the electrode group. Each busbar (7) is connected by a connecting neck (8). The connecting neck (8) is U-shaped and spans the partition wall (9). An inner groove for accommodating the connecting neck (8) is provided at the lower end of the battery cover (2). A positioning sleeve is fixedly connected in the inner groove. The connecting neck (8) is inserted into the positioning sleeve. A terminal is provided on the busbar (7). The terminal passes through the battery cover (2).

2. The electrode group structure for improving the discharge performance according to claim 1, wherein An installation groove is fixedly connected to the bottom of the cavity (3), and the pole group is fixedly connected in the installation groove.

3. The electrode group structure for improving the discharging performance according to claim 1, wherein A protective plate is fixedly installed on the top of each pole group, and the connecting neck (8) is held above the protective plate.

4. The electrode group structure for improving the discharging performance according to claim 1, wherein A slot is provided on the battery compartment (1), and a clip is provided on the battery cover (2), wherein the clip and the slot are locked together.

5. The electrode group structure for improving the discharging performance according to claim 1, wherein A bolt is connected between the battery cover (2) and the battery slot (1), the bolt passing through the battery cover (2) and fastened in the threaded hole at the upper end of the battery slot (1).

6. The electrode group structure for improving the discharging performance according to claim 1, wherein A bracket is fixedly connected to the partition wall (9), and at least a portion of the busbar (7) is supported on the bracket.

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