CN216958264U

CN216958264U - Novel special block of lithium ion cylinder battery

Info

Publication number: CN216958264U
Application number: CN202220626787.2U
Authority: CN
Inventors: 邓纶浩; 彭金兰
Original assignee: Jiangxi Jiuding Power New Energy Technology Co ltd
Current assignee: Jiangxi Jiuding Power New Energy Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-12
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a novel special cap for a lithium ion cylindrical battery, which comprises a cap, wherein the top of the cap is provided with a top cover, the interior of the cap is sequentially provided with an explosion-proof valve, an isolation ring and a connecting pore plate from top to bottom, and the exterior of the cap is wrapped by a sealing ring; laser welding is adopted at the laser welding point between the connecting pore plate and the explosion-proof valve; the last jack that is equipped with a plurality of and corresponds the anodal post of circumference of edge of connection orifice plate, and be equipped with the pressure release hole between the adjacent jack. The connection mode of the cap and the novel lithium ion battery anode post is that the plug-in is fastened and connected without laser welding, the use is simple and convenient, the cost is low, the production process of the process does not have the sheet making procedure of a coating, rolling and splitting machine, and only has the procedures of batching, filling, rolling groove, sealing, activating, forming and grading; the lithium ion cylindrical battery produced by the process can save a large amount of equipment acquisition cost, the production period is shortened by more than half compared with the prior art, and the battery processing cost is reduced by more than 50%.

Description

Novel special block of lithium ion cylinder battery

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a novel special cap for a lithium ion cylindrical battery.

Background

The lithium battery has the advantages of small volume, large capacity, long service life, low self-discharge rate, no memory effect, environmental protection and the like, and is widely applied to commercial vehicles, special vehicles, electric bicycles, energy storage systems, medical instruments and the like at present. However, the existing production processes of the lithium ion battery are many processes such as material preparation, coating, rolling, slitting, sheet production, winding and the like, many devices are needed to be purchased, the production period is long, and the production cost is high. The novel lithium ion cylindrical battery is designed, so that the production procedures can be reduced, the production cost is reduced, and a special cap is required.

Disclosure of Invention

In order to solve the problems of long production cycle and high production cost of the conventional lithium ion battery, the utility model provides a novel special cap for a lithium ion cylindrical battery.

In order to achieve the purpose, the utility model provides the following technical scheme:

a novel special cap for a lithium ion cylindrical battery comprises a cap, wherein a top cover is arranged at the top of the cap, an explosion-proof valve, an isolation ring and a connecting pore plate are sequentially arranged in the cap from top to bottom, and the outer part of the cap is wrapped by a sealing ring; laser welding is adopted at the laser welding point between the connecting orifice plate and the explosion-proof valve; the connection pore plate is provided with a plurality of jacks corresponding to the positive posts along the circumferential direction, and pressure relief holes are formed between adjacent jacks.

Preferably, the number of the jacks is 3, the jacks are uniformly distributed along the circumferential direction at 120 degrees, and the jacks are arc-shaped.

Preferably, the bottom external diameter of block is less than the internal diameter of steel casing, and along higher than the block on the top cap, not wrapped up by the sealing washer.

Compared with the prior art, the utility model has the beneficial effects that: the connection mode of the cap and the novel lithium ion battery anode column is that the plug-in is fastened and connected without laser welding, the use is simple and convenient, the cost is low, the production process of the process has no sheet making procedure of a coating, rolling and splitting machine, and only has the procedures of batching, filling, rolling groove, sealing, activating, forming and grading; the process for producing the lithium ion cylindrical battery can save a large amount of equipment acquisition cost, shorten the production period by more than half compared with the prior art, and reduce the battery processing cost by more than 50 percent.

Drawings

FIG. 1 is a schematic cross-sectional structure diagram of a novel lithium ion cylindrical battery;

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic top view of the present invention.

In the figure: 1. the steel shell, 2, a cover cap, 21, a sealing ring, 22, a top cover, 23, an explosion-proof valve, 24, a connecting pore plate, 241, an insertion hole, 242, a pressure relief hole, 243, a laser welding spot, 25, an isolation ring, 3, an anode material cup, 4, an isolation cup, 5 and an anode column.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in fig. 1 to 3, the embodiment of the utility model comprises a cap 2, wherein a top cover 22 is arranged on the top of the cap 2, an explosion-proof valve 23, an isolation ring 25 and a connecting orifice plate 24 are sequentially arranged in the cap from top to bottom, and the outer part of the cap is wrapped by a sealing ring 21; the laser welding spot 243 between the connecting orifice plate 24 and the explosion-proof valve 23 is laser welded; 3 jacks 241 which are uniformly distributed at an angle of 120 degrees along the circumferential direction are arranged on the connecting pore plate 24 along the circumferential direction, the jacks 241 correspond to the positive post 5 and are arc-shaped, and a pressure relief hole 242 is arranged between every two adjacent jacks 241; the bottom external diameter of block 2 is less than the internal diameter of box hat 1, and top cap 22 is along higher than block 2, not wrapped up by sealing washer 21.

When the battery is sealed, the bottom of the cap 2 can be inserted into the steel shell 1, and the cap 2 seals the top opening of the steel shell 1 in a mechanical compression wrapping and sealing mode; when the cap 2 is inserted into the steel shell 1, the insertion holes 241 on the connection pore plate 24 correspond to the positive posts 5 one by one and are inserted with the positive posts 5 to ensure the conduction of the positive electrode, and the top cover 22 is the positive electrode tab of the battery after the production of the battery is finished; the explosion-proof valve 23 in the cap 2 can function as an explosion-proof shut-off.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel special block of lithium ion cylinder battery which characterized in that: the anti-explosion valve is characterized by comprising a cap, wherein the top of the cap is provided with a top cover, the interior of the cap is sequentially provided with an anti-explosion valve, an isolation ring and a connecting pore plate from top to bottom, and the exterior of the cap is wrapped by a sealing ring; laser welding is adopted at the laser welding point between the connecting orifice plate and the explosion-proof valve; the connection pore plate is provided with a plurality of jacks corresponding to the positive posts along the circumferential direction, and pressure relief holes are formed between adjacent jacks.

2. The novel special cap for the lithium-ion cylindrical battery as claimed in claim 1, wherein: the quantity of jack is 3, is 120 evenly distributed along circumference, and the shape of jack is the arc.

3. The novel special cap for the lithium-ion cylindrical battery as claimed in claim 2, wherein: the bottom external diameter of block is less than the internal diameter of box hat, and top cap upper edge exceeds the block, is not wrapped up by the sealing washer.