CN215578968U

CN215578968U - Lithium battery positive electrode assembly

Info

Publication number: CN215578968U
Application number: CN202121496275.0U
Authority: CN
Inventors: 高峰; 赵冬梅; 陈雨; 张要枫; 袁路路
Original assignee: Hubei Titanium Era New Energy Co Ltd
Current assignee: Hubei Titanium Era New Energy Co Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-01-18
Anticipated expiration: 2031-07-02

Abstract

A positive pole assembly of a lithium battery comprises a positive pole, a positive pole cover plate, a positive pole plate and a positive pole adapter sheet, wherein mounting holes are formed in the centers of the positive pole cover plate, the positive pole plate and the positive pole adapter sheet, and the positive pole penetrates through the mounting holes and then connects the positive pole cover plate, the positive pole plate and the positive pole adapter sheet into a whole; the positive electrode cover plate is arranged below the positive electrode pole and movably connected with the positive electrode pole, the lower end face of the positive electrode cover plate is welded with the upper end face of the positive electrode plate, and the lower end face of the positive electrode plate is welded with the positive electrode adapter sheet; the utility model can easily realize the accurate positioning and connection of each component at the positive electrode of the lithium battery, is beneficial to the liquid injection of the battery, reduces the sequence steps, reduces the production cost of the battery and further improves the overall efficiency of the battery production.

Description

Lithium battery positive electrode assembly

Technical Field

The utility model belongs to the technical field of batteries, and particularly relates to a lithium battery positive electrode assembly.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses a non-aqueous electrolyte solution, and is widely applied to various devices because of the advantages of safety, high efficiency, no pollution, high specific energy, abundant raw materials, multiple recycling times, long storage time and the like.

The existing cylindrical lithium ion battery generally comprises a battery cell, an anode adapter plate, a cathode adapter plate, an anode pole and a cathode pole, wherein the anode pole and the cathode adapter plate are two independent parts, and the anode pole and the cathode adapter plate are welded together by laser during assembly; when adopting this mode equipment battery, the location is comparatively difficult between each spare part, leads to its manufacturing procedure loaded down with trivial details, and the preparation efficiency is lower, and is also higher to processing workman's operation level requirement, in addition, because be fixed connected mode between anodal utmost point post and the battery, also comparatively difficult when need toward filling liquid in the battery, influence the final production efficiency of lithium cell.

Disclosure of Invention

In view of the technical problems in the background art, the utility model provides the lithium battery positive electrode assembly, which can easily realize the accurate positioning and connection of all parts at the positive electrode of the lithium battery, is beneficial to the liquid injection of the battery, reduces the sequence steps, reduces the production cost of the battery and further improves the overall efficiency of the battery production.

A positive pole assembly of a lithium battery comprises a positive pole, a positive pole cover plate, a positive pole plate and a positive pole adapter sheet, wherein mounting holes are formed in the centers of the positive pole cover plate, the positive pole plate and the positive pole adapter sheet, and the positive pole penetrates through the mounting holes and then connects the positive pole cover plate, the positive pole plate and the positive pole adapter sheet into a whole; the positive pole cover plate is arranged below the positive pole column and movably connected with the positive pole column, the lower end face of the positive pole cover plate is welded with the upper end face of the positive pole plate, and the lower end face of the positive pole plate is welded with the positive pole adapter sheet.

In the preferred scheme, the upper end of positive plate is provided with the screens guide rail, and the screens groove has been seted up to anodal apron's lower terminal surface, when positive plate and anodal apron equipment and welding, mutual joint between screens guide rail and the screens groove makes positive plate and anodal apron position each other keep fixed.

In the preferred scheme, the outer edge department of positive plate is provided with the round screens board, and the outer edge of anodal switching piece is provided with the round layer board, and when positive plate and anodal switching piece equipment and welding, the screens board joint is in the outer edge department and the layer board top of anodal switching piece, makes anodal switching piece and positive plate position each other keep fixed.

In a preferable scheme, through holes are formed around the center of the positive plate, and the through holes are annularly and symmetrically distributed around the mounting hole in the center of the positive plate.

In the preferred scheme, the positive pole is made of a material with good conductivity, and a column body below the positive pole is inserted into the mounting hole in an interference fit mode.

This patent can reach following beneficial effect:

1. positioning devices are arranged among all the components of the device, so that the components are more convenient to assemble, the working requirements of battery assemblers are reduced, and the assembly efficiency of the batteries is improved;

2. The installation mode that is movable between the anodal utmost point post of device and the anodal apron can follow directly to pour into from the battery top when the inside notes liquid of need toward the battery, compares in traditional notes liquid mode and will be more convenient.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of an explosive structure according to the present invention;

FIG. 2 is a schematic structural diagram of the front side of the positive plate of the present invention;

FIG. 3 is a schematic view of the back side of the positive plate of the present invention;

FIG. 4 is a schematic assembled view of the present invention;

fig. 5 is a front view of the assembled structure of the present invention.

In the figure: the positive pole comprises a positive pole post 1, a positive cover plate 2, a positive plate 3, a clamping plate 301, a through hole 302, a clamping guide rail 303, a positive adapter 4, a supporting plate 401 and a mounting hole 5.

Detailed Description

As shown in fig. 1, 4, 5, a lithium battery anode assembly, including anodal utmost point post 1, anodal apron 2, positive plate 3 and anodal switching piece 4, mounting hole 5 has been seted up in anodal apron 2, the center department of positive plate 3 and anodal switching piece 4, anodal utmost point post 1 runs through behind the mounting hole 5 with anodal apron 2, positive plate 3 and anodal switching piece 4 connect as an organic whole and constitute the anodal subassembly of integral type, anodal apron 2 set up in anodal utmost point post 1 below and with anodal utmost point post 1 swing joint, the lower terminal surface of anodal apron 2 and the up end welding of positive plate 3, the lower terminal surface and the anodal switching piece 4 welding of positive plate 3.

The preferred scheme is as shown in fig. 2 to 4, the upper end of positive plate 3 is provided with screens guide rail 303, and the screens groove has been seted up to the lower terminal surface of anodal apron 2, when the equipment of positive plate 3 and anodal apron 2 and welding, mutual joint between screens guide rail 303 and the screens groove, again with screens guide rail 303 weld in the screens inslot of anodal apron 2 lower extreme face, realized accurate location and connection between positive plate 3 and the anodal apron 2.

The preferred scheme is as shown in fig. 2 to 4, the outer edge of positive plate 3 is provided with round screens board 301, the outer edge of positive adapter plate 4 is provided with round layer board 401, when positive plate 3 and positive adapter plate 4 equipment and welding, screens board 301 joint is in the outer edge of positive adapter plate 4 department, make the outer edge of positive adapter plate 4 just in time wrapped by screens board 301, screens board 301 still welds the top at layer board 401 simultaneously, can realize accurate location and connection between positive adapter plate 4 and the screens board 301 through this structure.

Preferably, as shown in fig. 2 and 3, a through hole 302 is formed around the center of the positive plate 3, and the through holes 302 are circularly and symmetrically distributed around the mounting hole 5 at the center of the positive plate 3, so that the battery fluid injected from the positive cover plate 2 can fully and quickly flow into the battery, and further, the battery fluid injection work is convenient.

The preferred scheme is as shown in fig. 4 and 5, and anodal utmost point post 1 adopts the good material of electric conductivity to make and forms, and the cylinder of anodal utmost point post 1 below adopts interference fit's mode to install in mounting hole 5, when needs are annotated towards the battery is inside, only needs to pull out anodal utmost point post 1 with strength and can carry out the operation on next step, compares in traditional notes liquid mode, and its operability and work efficiency have all obtained promotion by a wide margin.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a lithium cell positive pole subassembly, includes anodal utmost point post (1), anodal apron (2), positive plate (3) and anodal switching piece (4), its characterized in that: the center of the positive cover plate (2), the center of the positive plate (3) and the center of the positive adapter sheet (4) are provided with mounting holes (5), and the positive pole column (1) penetrates through the mounting holes (5) and then connects the positive cover plate (2), the positive plate (3) and the positive adapter sheet (4) into a whole; the positive pole cover plate (2) is arranged below the positive pole column (1) and movably connected with the positive pole column (1), the lower end face of the positive pole cover plate (2) is welded with the upper end face of the positive pole plate (3), and the lower end face of the positive pole plate (3) is welded with the positive pole adapter sheet (4).

2. The positive electrode assembly for lithium batteries according to claim 1, wherein: the upper end of positive plate (3) is provided with screens guide rail (303), and the screens groove has been seted up to the lower terminal surface of anodal apron (2), when positive plate (3) and anodal apron (2) equipment and welding, joint each other between screens guide rail (303) and the screens groove makes positive plate (3) and anodal apron (2) position each other keep fixed.

3. The positive electrode assembly for lithium batteries according to claim 1, wherein: the outer edge department of positive plate (3) is provided with round screens board (301), and the outer edge of anodal switching piece (4) is provided with round layer board (401), when anodal plate (3) and anodal switching piece (4) equipment and welding, screens board (301) joint is in anodal switching piece (4) outer edge and layer board (401) top, makes anodal switching piece (4) and positive plate (3) position each other keep fixed.

4. The positive electrode assembly for lithium batteries according to claim 1, wherein: a through hole (302) is formed in the center of the positive plate (3), and the through holes (302) are annularly and symmetrically distributed around the mounting hole (5) in the center of the positive plate (3).

5. The positive electrode assembly for lithium batteries according to claim 1, wherein: the positive pole column (1) is made of a material with good conductivity, and a column body below the positive pole column (1) is inserted into the mounting hole (5) in an interference fit mode.