Pole plate lead plaster coating structure for high-rate battery

Abstract

The utility model provides a polar plate lead plaster coating structure for a high-rate battery, and belongs to the technical field of storage batteries. According to the structure, a plurality of longitudinal ribs are arranged in a grid frame, a plurality of inclined ribs are connected between the adjacent longitudinal ribs, inclined parts are arranged on the upper parts of the longitudinal ribs, a confluence area is arranged on the inner side of the top of the grid frame, the inclined parts are connected to the confluence area, and a tab is arranged on the outer side of the top of the grid frame. Reinforcing ribs are connected between the confluence area and the grid frame, second corner ribs are connected between the reinforcing ribs located on the edges and the vertex angles of the grid frame, connecting ribs are connected among the multiple inclined parts, and the grid frame is coated with lead plaster. According to the utility model, the confluence area is constructed in the grid frame, and the inclined part and the longitudinal ribs are connected into a whole, so that the net density near a discharge position is increased, and the lead plaster adhesion amount is increased. In addition, the structure of the ribs is improved, and better adhesiveness to lead plaster is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery, concretely is a kind of plate lead paste coating structure for high rate battery. BACKGROUND

[0002] High rate battery is the battery with high energy output capacity, usually can release a large amount of electric energy in short time, support high load operation. High rate battery usually adopts multiple plate structure, this design can increase the reaction area of plate, thereby improve the utilization rate of active material and current density per unit area, and then promote the large current discharge performance. In addition, high rate battery is suitable for relatively high electrolyte density, and the lead paste coating amount of plate should be appropriately increased. In prior art, the structure of conventional plate is difficult to further improve the lead paste coating amount, often can only increase the number of pole piece by increasing assembly pressure and reducing the thickness of separator, however this puts forward higher requirements to assembly process and shell performance, and is not conducive to prolong the service life of battery. SUMMARY

[0003] The technical problem to be solved by the utility model is: how to further improve the lead paste coating amount of plate.

[0004] To realize the above technical purpose, the utility model adopts the following technical scheme:

[0005] The plate lead paste coating structure for high rate battery includes grid frame, longitudinal rib, transverse rib, confluence area, inclined part, tab, first corner rib, wherein, the inside of grid frame has several longitudinal ribs and several transverse ribs, the upper part of longitudinal rib has inclined part, the inside of top of grid frame has confluence area, several inclined parts are connected to confluence area, the outside of top of grid frame has tab, first corner rib is connected between longitudinal rib and top corner of grid frame, and lead paste is coated on grid frame.

[0006] Another plate lead paste coating structure for high rate battery includes grid frame, longitudinal rib, confluence area, inclined part, tab, inclined rib, reinforcing rib, second corner rib and connecting rib, wherein, the inside of grid frame has several longitudinal ribs, several inclined ribs are connected between adjacent longitudinal ribs, the upper part of longitudinal rib has inclined part, the inside of top of grid frame has confluence area, several inclined parts are connected to confluence area, the outside of top of grid frame has tab, reinforcing rib is connected between confluence area and grid frame, second corner rib is connected between reinforcing rib located at edge and top corner of grid frame, connecting rib is connected between several inclined parts, and lead paste is coated on grid frame.

[0007] As preferred, the top and bottom of longitudinal rib are both arc surface parts, and middle ridge part is formed at the joint position of two arc surface parts.

[0008] As preferred, the top and bottom of each of the longitudinal rib, the oblique rib, the reinforcing rib, the second corner rib and the connecting rib are arc surface parts, and the intersection of the two arc surface parts forms a ridge part.

[0009] As preferred, the top and bottom of each of the longitudinal rib, the oblique rib, the reinforcing rib, the second corner rib and the connecting rib are arc surface parts, and the intersection of the two arc surface parts forms a ridge part.

[0010] In the above technical solution, the grid frame is an external support structure; the longitudinal rib and the transverse rib constitute a mesh structure, and the inclined part of the longitudinal rib is connected to the current collecting area, so that the mesh density near the discharge position is increased, which is conducive to increasing the amount of lead paste adhesion. The tab is a structure of the grid. The first corner rib is used to increase the structural strength of the top corner position of the grid frame.

[0011] In another lead paste coating structure, the mesh structure is composed of longitudinal ribs and oblique ribs, and the oblique ribs of adjacent two rows can be arranged alternately, which is conducive to improving the lead paste adhesion effect; near the current collecting area, the connecting rib is used to not only strengthen the structural strength of the inclined part, but also increase the mesh density, thereby further improving the lead paste adhesion effect. In addition, the reinforcing rib helps to improve the structural strength of the current collecting area. The second corner rib is also used to increase the structural strength of the top corner position of the grid frame. In addition, each rib can be designed as a structure with a ridge part between two arc surface parts, which has better adhesion to lead paste than the round cross-section rib and the rectangular cross-section rib.

[0012] The utility model provides a kind of plate lead paste coating structure for high rate battery. The technical scheme constructs current collecting area in grid frame, and is connected to become whole by inclined part and longitudinal rib, to increase the mesh density near the discharge position, it is conducive to increasing the amount of lead paste adhesion. In addition, the utility model improves rib configuration, which has better adhesion to lead paste. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model embodiment 1;

[0014] Figure 2 It is the structure schematic diagram of the utility model embodiment 2;

[0015] Figure 3 It is Figure 2 sectional view of A-A place in;

[0016] In the drawing:

[0017] DETAILED DESCRIPTION

[0018] The specific embodiments of the present application will be described in detail below. In order to avoid too many unnecessary details, the structures or functions that are well known will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the amount can be allowed to have certain changes without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0019] Embodiment 1

[0020] The plate lead paste coating structure for high rate battery, as shown in Figure 1 , includes a grid frame 1, a longitudinal rib 2, a transverse rib 3, a busbar area 4, an inclined part 5, a tab 6, a first corner rib 7, wherein the inside of the grid frame 1 has a plurality of longitudinal ribs 2 and a plurality of transverse ribs 3, the upper part of the longitudinal rib 2 has an inclined part 5, the inside of the top of the grid frame 1 has a busbar area 4, a plurality of inclined parts 5 are connected to the busbar area 4, the outside of the top of the grid frame 1 has a tab 6, the first corner rib 7 is connected between the longitudinal rib 2 and the top corner of the grid frame 1, and the grid frame 1 is coated with lead paste.

[0021] In the above technical solution, the grid frame 1 is an external support structure; the longitudinal rib 2 and the transverse rib 3 form a mesh structure, which serves as an attachment for lead paste, and the busbar area 4 is used to connect the inclined part 5 of the longitudinal rib 2 thereto, thereby increasing the mesh density near the discharge position and facilitating an increase in the amount of lead paste attachment. The tab 6 is a structure of the grid. The first corner rib 7 is used to increase the structural strength of the top corner of the grid frame 1.

[0022] Embodiment 2

[0023] The plate lead paste coating structure for high rate battery, as shown in Figure 2 , Figure 3 , includes a grid frame 1, a longitudinal rib 2, a busbar area 4, an inclined part 5, a tab 6, an inclined rib 8, a reinforcing rib 9, a second corner rib 10, a connecting rib 11, wherein the inside of the grid frame 1 has a plurality of longitudinal ribs 2, a plurality of inclined ribs 8 are connected between adjacent longitudinal ribs 2, the upper part of the longitudinal rib 2 has an inclined part 5, the inside of the top of the grid frame 1 has a busbar area 4, a plurality of inclined parts 5 are connected to the busbar area 4, the outside of the top of the grid frame 1 has a tab 6, the reinforcing rib 9 is connected between the busbar area 4 and the grid frame 1, the second corner rib 10 is connected between the reinforcing rib 9 located at the edge and the top corner of the grid frame 1, the connecting rib 11 is connected between a plurality of inclined parts 5, and the grid frame 1 is coated with lead paste. Among them, the top and bottom of the longitudinal rib 2 are arc surface parts 12, and a ridge part 13 is formed at the intersection position of the two arc surface parts 12.

[0024] In the above technical scheme, the longitudinal rib 2 and the inclined rib 8 constitute a mesh structure, and the adjacent two rows of inclined ribs 8 can be arranged alternately, which is beneficial to improve the lead paste adhesion effect; near the busbar area 4, the connecting rib 11 is used to not only strengthen the structural strength of the inclined part 5, but also increase the mesh density, and further improve the lead paste adhesion effect. In addition, the reinforcing rib 9 is helpful to improve the structural strength of the busbar area 4. The second corner rib 10 is also used to increase the structural strength of the top corner position of the grid frame 1. In addition, the rib in the embodiment is designed as a structure with a middle ridge 13 between two arc surface parts 12, and the structure has better adhesion to the lead paste than the round cross-section rib and the rectangular cross-section rib.

[0025] The embodiments of the utility model are described in detail above, but the content described is only the preferred embodiment of the utility model, and does not limit the utility model. Any modification, equivalent replacement and improvement made within the application range of the utility model should be included in the protection range of the utility model.

Claims

1. A lead paste coating structure for high-rate batteries, characterized in that... It includes a grid frame (1), longitudinal ribs (2), transverse ribs (3), a busbar area (4), an inclined portion (5), an electrode lug (6), and a first corner rib (7). The grid frame (1) has several longitudinal ribs (2) and several transverse ribs (3) inside. The inclined portion (5) is located on the upper part of the longitudinal ribs (2). The busbar area (4) is located on the inner side of the top of the grid frame (1). Several inclined portions (5) are connected to the busbar area (4). The electrode lug (6) is located on the outer side of the top of the grid frame (1). The first corner rib (7) is connected between the longitudinal ribs (2) and the top corner of the grid frame (1). Lead paste is applied to the grid frame (1).

2. A lead paste coating structure for high-rate batteries, characterized in that... The assembly includes a grid frame (1), longitudinal ribs (2), a merging area (4), an inclined portion (5), an electrode lug (6), a diagonal rib (8), a reinforcing rib (9), a second corner rib (10), and a connecting rib (11). The grid frame (1) has several longitudinal ribs (2) inside, several diagonal ribs (8) are connected between adjacent longitudinal ribs (2), an inclined portion (5) is provided on the upper part of the longitudinal ribs (2), a merging area (4) is provided on the inner side of the top of the grid frame (1), several inclined portions (5) are connected to the merging area (4), an electrode lug (6) is provided on the outer side of the top of the grid frame (1), a reinforcing rib (9) is connected between the merging area (4) and the grid frame (1), a second corner rib (10) is connected between the reinforcing rib (9) located at the edge and the top corner of the grid frame (1), a connecting rib (11) is connected between several inclined portions (5), and lead paste is applied to the grid frame (1).

3. The electrode lead paste coating structure for high-rate batteries according to claim 2, characterized in that, The top and bottom of the longitudinal rib (2) are both arc-shaped (12), and a central ridge (13) is formed at the junction of the two arc-shaped (12) ribs.

4. The electrode lead paste coating structure for high-rate batteries according to claim 2, characterized in that, The top and bottom of each of the longitudinal reinforcement (2), diagonal reinforcement (8), reinforcing reinforcement (9), second corner reinforcement (10), and connecting reinforcement (11) are arc-shaped surfaces (12), and the intersection of the two arc-shaped surfaces (12) forms the central ridge (13).

5. The electrode lead paste coating structure for high-rate batteries according to claim 1, characterized in that, The top and bottom of the longitudinal reinforcement (2), the transverse reinforcement (3), and the first corner reinforcement (7) are all arc-shaped surfaces (12), and the intersection of the two arc-shaped surfaces (12) forms the central ridge (13).

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