CN213692278U

CN213692278U - Lead-acid storage battery pole group

Info

Publication number: CN213692278U
Application number: CN202021967989.0U
Authority: CN
Inventors: 杨滔; 熊正林; 胡曙; 李焙
Original assignee: Hubei Nandu New Energy Research Co Ltd; Zhejiang Narada Power Source Co Ltd
Current assignee: Hubei Nandu New Energy Research Co Ltd; Zhejiang Narada Power Source Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-07-13
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a lead-acid storage battery pole group, which relates to the technical field of batteries and comprises more than one positive plate, more than one negative plate, more than one bus bar and more than one clapboard, as well as a positive lug arranged on the positive plate and a negative lug arranged on the negative plate; a partition plate is arranged between the adjacent positive plate and the adjacent negative plate, and the positive lug and the negative lug are respectively arranged at two ends of the partition plate; the bus bars comprise a first bus bar and a second bus bar, the first bus bar is used for connecting a plurality of adjacent positive lugs at the same end of the partition board, and the second bus bar is used for connecting a plurality of adjacent negative lugs at the same end of the partition board; to form a single group of poles. Aiming at the technical problem of low utilization rate of the lead plaster at the bottom of the pole group, the lead plaster utilization rate at the bottom of the pole group can be improved.

Description

Lead-acid storage battery pole group

Technical Field

The utility model relates to the technical field of batteries, concretely relates to lead acid battery utmost point crowd.

Background

The lead-acid storage battery structure comprises a battery shell (made of ABS or PP materials in common use), a pole group (composed of a positive plate, a negative plate, a busbar and a partition plate), a connecting piece, electrolyte and the like; the electrode group is an important core component of the battery, and the positive and negative plates in the electrode group are connected in parallel, as shown in the attached figures 6-8, the structure of the electrode group is characterized in that the production operation is simple and easy, the realization is very easy, the electrode lugs are connected by a bus bar at the upper part at the same time, no bus bar is arranged at the bottom, when an external power supply is connected, the current flows through the negative connecting piece through the positive connecting piece to obtain the current, and the current is long, because the current at the upper part of the electrode group is large, and the current at the lower part is relatively small, the utilization rate of the active substances above and below the electrode group is greatly different, the utilization rate of the lead paste at the; the lead plaster utilization rate at the bottom of the pole group is low, the lead plaster utilization rate is poor in uniformity, the grid corrosion rate is high, and the charging energy consumption is higher; the consistency of the battery is poor; ultimately resulting in a short battery cycle life.

Disclosure of Invention

Technical problem to be solved by the utility model

To the technical problem that utmost point crowd bottom lead plaster utilization ratio is low, the utility model provides a lead acid battery utmost point crowd, it can improve the lead plaster utilization ratio of utmost point crowd bottom.

Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

a lead-acid storage battery pole group comprises more than one positive pole piece, more than one negative pole piece, more than one bus bar and more than one partition plate, as well as a positive pole lug arranged on the positive pole piece and a negative pole lug arranged on the negative pole piece; a partition plate is arranged between the adjacent positive plate and the adjacent negative plate, and the positive lug and the negative lug are respectively arranged at two ends of the partition plate; the bus bars comprise a first bus bar and a second bus bar, the first bus bar is used for connecting a plurality of adjacent positive lugs at the same end of the partition board, and the second bus bar is used for connecting a plurality of adjacent negative lugs at the same end of the partition board; to form a single group of poles.

Optionally, the separator is made of PP, PE, or AGM.

Optionally, the area of the separator is larger than that of the positive plate or the negative plate, so that the positive plate and the negative plate are not in contact with each other.

Optionally, two adjacent first busbars and second busbars at the same end of the partition are connected to form the third busbar.

Optionally, a plurality of adjacent single-group pole groups are connected through a third bus bar to form the pole group.

Optionally, a plastic-casing partition plate is disposed between the first bus bar and the second bus bar which are located at the same adjacent end of the partition plate and are not connected to each other, and a plastic-casing partition plate is disposed between the third bus bar which is located at the same adjacent end of the partition plate and are not connected to each other.

Optionally, the first bus bar and the second bus bar located on the two sides of the top of the electrode group and located at the same end of the partition board are respectively provided with a positive pole column and a negative pole column.

Optionally, the positive pole and the negative pole are matched with the plastic cover plate structure.

A method of making a lead-acid battery plate pack, the lead-acid battery plate pack according to any one of the above, comprising: a plurality of positive lugs of the single-group pole group are welded on the first bus bar; welding a plurality of negative electrode lugs of the single-group electrode group on the second bus bar; according to the number of single group of pole groups forming the pole group, welding two adjacent first bus bars and second bus bars positioned at the same end of the partition board to form a third bus bar; and the first bus bar and the second bus bar are positioned on two sides of the top of the pole group and positioned at the same end of the partition plate, and the positive pole column and the negative pole column are respectively welded on the first bus bar and the second bus bar.

Optionally, the pole group is placed in a plastic shell, and electrolyte is introduced into the plastic shell.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

when the positive plate and the negative plate are arranged, the separator is used for isolating the positive plate and the negative plate to prevent short circuit; when the anode tab is arranged, the anode tab on the anode piece is intensively arranged at one end of the separator, and the cathode tab of the cathode piece is arranged at the other end (in the direction far away from one end of the separator); the negative electrode lugs on the adjacent negative electrode plates at one end of the partition plates are communicated through a first bus bar and used for passing current; and the positive lugs on the positive plates which are positioned at the other ends of the plurality of clapboards and are isolated by the plurality of clapboards and are crossed between the adjacent negative plates are communicated through the first bus bar for passing current.

Two adjacent first busbars positioned at the same end of the partition board are connected to form the second busbar; and the first bus bars which are positioned at the two sides of the pole group and are connected with the positive pole lugs and the first bus bars which are connected with the negative pole lugs are respectively provided with a positive pole column and a negative pole column.

The current is enabled to flow to the negative plate or the positive plate at the other end of the separator after passing through the whole positive plate or the negative plate at one end of the separator through the separator, or the first bus bar and the second bus bar at the two ends of the positive plate or the negative plate; so that the current flows through each part of the pole group to achieve relative uniformity, and the lead paste utilization rate at the bottom of the pole group is greatly improved; the upper and lower uniformity of the pole group is improved, and the service life of the lead-acid storage battery is prolonged.

The existing pole group connection mode is changed, the lead paste utilization rate of the bottom of the pole group is improved, the required lead paste amount is reduced, and the cost is lower; the battery charging is more uniform, and the electric energy utilization rate is high; the utilization rate of the battery pole group lead paste is improved, and the charging energy consumption of the battery is reduced; the required lead paste amount is reduced, so that the cost is reduced; the sealant beating times are reduced, the production efficiency is improved, and the battery sealing performance is better; the cycle life of the battery is prolonged, and the consistency of the battery is improved.

Drawings

Fig. 1 is a schematic perspective view of relative positions of positive and negative electrode plates and a partition plate of a lead-acid storage battery electrode group according to an embodiment of the present invention.

Fig. 2 is a front view of a lead-acid storage battery plate group provided by the embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a front view of relative position structures of positive and negative plates and a partition plate of a lead-acid storage battery plate group according to an embodiment of the present invention.

Fig. 5 is a top view of a lead-acid storage battery plate group according to an embodiment of the present invention.

Fig. 6 is a top view of a conventional pole group.

Fig. 7 is a perspective view of the relative position structure of positive and negative electrode plates and separators of a conventional electrode group.

Fig. 8 is a front view of a conventional pole group structure.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example 1

With reference to fig. 1-5, a lead-acid battery electrode group comprises more than one positive electrode plate 2, more than one negative electrode plate 1, more than one bus bar 4 and more than one separator 3, as well as a positive electrode tab 202 arranged on the positive electrode plate 2 and a negative electrode tab 102 arranged on the negative electrode plate 1; a partition plate 3 is arranged between the adjacent positive plate 2 and the adjacent negative plate 1, and the positive tab 202 and the negative tab 102 are respectively arranged at two ends of the partition plate 3; the bus bar 4 comprises a first bus bar 401 and a second bus bar 402, the first bus bar 401 is used for connecting a plurality of adjacent positive lugs 202 at the same end of the separator 3, and the second bus bar 402 is used for connecting a plurality of adjacent negative lugs 102 at the same end of the separator 3; to form a single group of poles 11.

As shown in fig. 1, when the positive electrode tab 2 and the negative electrode tab 1 are arranged, the separator 3 is used to separate the positive electrode tab 2 and the negative electrode tab 1 to prevent short circuit; when the arrangement is carried out, the positive tab 202 on the positive plate 2 is intensively arranged at one end of the separator 3, and the negative tab 102 of the negative plate 1 is arranged at the other end (in the direction far away from one end of the separator 3) of the separator 3; the negative electrode tabs 102 on a plurality of adjacent negative electrode sheets 1 at one end of the plurality of separators 3 are communicated through a first bus bar 401 and used for passing current; and the positive lugs 202 are positioned at the other ends of the plurality of separators 3, isolated by the plurality of separators 3 and arranged on the plurality of positive plates 2 between the adjacent negative plates 1 in a crossed manner, and are communicated through a first bus bar 401 for passing current.

Two adjacent first busbars 401 at the same end of the partition 3 are connected to form the second busbar 402; the first bus bar 401 connected with the positive tab 202 and the first bus bar 401 connected with the negative tab 102 on two sides of the pole group are respectively provided with a positive post 201 and a negative post 101.

After passing through the whole positive plate 2 or negative plate 1 at one end of the separator 3, the current is made to flow to the negative plate 1 or positive plate 2 at the other end of the separator 3 through the first bus bar 401 and the second bus bar 402 at both ends of the positive plate 2 or negative plate 1; so that the current flows through each part of the pole group to achieve relative uniformity, and the lead paste utilization rate at the bottom of the pole group is greatly improved; the upper and lower uniformity of the pole group is improved, and the service life of the lead-acid storage battery is prolonged.

Optionally, the separator 3 is made of PP, PE or AGM. A PP (polypropylene) separator, a PE (polyethylene) separator, an AGM (absorbent glass fiber separator), or a microglass separator and other composite separators may be used in the separator 3 described in this embodiment.

Alternatively, the area of the separator 3 is larger than that of the positive electrode tab 2 or the negative electrode tab 1, so that the positive electrode tab 2 and the negative electrode tab 1 are not in contact with each other. The separator 3 plays a role of isolation so that the positive plate 2 and the negative plate 1 are not in contact with each other, and short circuit of the positive plate 2 and the negative plate 1 is prevented.

Alternatively, two adjacent first busbars 401 and second busbars 402 at the same end of the partition 3 are connected to form the third busbar 403. Alternatively, a plurality of adjacent single-group pole groups 11 are connected by a third bus bar 403 to form the pole group. The adjacent single-group pole groups 11 are interconnected through the third bus bar 403, so that direct current series connection circulation of the single-group pole groups 11 is realized, the arrangement is realized, the current flows through each part of the pole groups, the relative uniformity is achieved, and the lead paste utilization rate at the bottoms of the pole groups is greatly improved; the upper and lower uniformity of the pole group is improved, and the service life of the lead-acid storage battery is prolonged.

Optionally, plastic-casing partition plates are respectively arranged between the first busbar 401 and the second busbar 402 which are adjacent to the same end of the partition plate 3 and are not connected to each other, and between the third busbar 403 which is adjacent to the same end of the partition plate 3 and are not connected to each other. The single group of poles 11 is fixed through a plastic shell partition plate, and the single group of poles 11 comprises a plurality of negative pole pieces 1 connected through the same second bus bar 402; and a plurality of positive electrode tabs 2 connected by the same first bus bar 401. The adjacent single-group pole group 11 is fixedly supported by a plastic shell partition plate.

In an alternative embodiment, the first bus bar 401 and the second bus bar 402, which are located on both sides of the top of the electrode group and located at the same end of the separator 3, are respectively provided with the positive electrode post 201 and the negative electrode post 101. In an optional embodiment, the positive pole 201 and the negative pole 101 are matched with a plastic cover plate structure. The structure of the positive pole column 201 and the structure of the negative pole column 101 are limited through the plastic shell cover plate structure, so that the pole group is stably and reliably connected with the plastic shell.

Example 2

The embodiment provides a method for manufacturing a lead-acid battery plate group, which is described in any one of technical solutions of embodiments 1 to 9, and includes: a plurality of positive lugs 202 of the single-group pole group 11 are welded on the first bus bar 401; a plurality of negative electrode tabs 102 of the single-group electrode group 11 are welded on the second bus bar 402; according to the number of single group of pole groups 11 forming the pole group, two adjacent first bus bars 401 and second bus bars 402 positioned at the same end of the separator 3 are welded to form the third bus bar 403; and the first bus bar 401 and the second bus bar 402 which are positioned at the two sides of the top of the pole group and at the same end of the separator 3 are respectively welded with the positive pole column 201 and the negative pole column 101.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A lead-acid storage battery pole group is characterized in that:

the device comprises more than one positive plate, more than one negative plate, more than one bus bar and more than one partition plate, as well as a positive lug arranged on the positive plate and a negative lug arranged on the negative plate;

a partition plate is arranged between the adjacent positive plate and the adjacent negative plate, and the positive lug and the negative lug are respectively arranged at two ends of the partition plate;

the bus bars comprise a first bus bar and a second bus bar, the first bus bar is used for connecting a plurality of adjacent positive lugs at the same end of the partition board, and the second bus bar is used for connecting a plurality of adjacent negative lugs at the same end of the partition board; to form a single group of poles.

2. The lead-acid battery pole group of claim 1, wherein: the separator is made of PP, PE or AGM materials.

3. The lead-acid battery pole group of claim 1, wherein: the area of the partition plate is larger than that of the positive plate or the negative plate, so that the positive plate and the negative plate are not in contact.

4. The lead-acid battery pole group of claim 1, wherein: and two adjacent first bus bars and second bus bars positioned at the same end of the partition board are connected to form a third bus bar.

5. The lead-acid battery pole group of claim 4, wherein: and a plurality of adjacent single-group pole groups are connected through a third bus bar to form the pole group.

6. The lead-acid battery pole group of claim 4, wherein: and plastic shell partition plates are arranged between the first busbar and the second busbar which are positioned at the same adjacent ends of the partition plates and are not connected with each other, and between the third busbar which is positioned at the same adjacent ends of the partition plates and are not connected with each other.

7. A lead-acid battery plate pack according to claim 5, wherein: and the first bus bar and the second bus bar are positioned on two sides of the top of the pole group and positioned at the same end of the partition board, and are respectively provided with a positive pole column and a negative pole column.

8. The lead-acid battery pole group of claim 7, wherein: the positive pole post and the negative pole post are matched with the plastic shell cover plate structure.