CN214477585U

CN214477585U - Novel cylindrical battery

Info

Publication number: CN214477585U
Application number: CN202022878566.8U
Authority: CN
Inventors: 程可武
Original assignee: Daqi Shenzhen Innovation Technology Co ltd
Current assignee: Daqi Shenzhen Innovation Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-22
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to the technical field of batteries, and a novel cylindrical battery is disclosed, including membrane shell and shell, the inside fixed mounting of membrane shell has a core, it glues to roll up core side both ends fixed mounting has utmost point ear, it glues the fixed connection with positive plate ear to roll up the core through one end utmost point ear, it glues the fixed connection with negative plate ear to roll up the core through other end utmost point ear, roll up the inside fixed mounting of core and have positive plate, the inside fixed surface of positive plate is connected with diaphragm paper. This kind of novel cylinder battery, the utility model discloses the inside membrane shell that has a steel-shelled structure of battery is used for protecting and rolls up the core, and our battery security performance is better when using like this, can not cause fatal bad such as short circuit fire because of external force, need not carry out the hem again after the battery encapsulation, has just so guaranteed packaging performance's stability, can not cause fatal bad such as flatulence weeping because of the encapsulation is bad, and it is higher to have reached the protection effect, promotes the purpose of battery capacity, has solved the problem of proposing in the background art.

Description

Novel cylindrical battery

Technical Field

The utility model relates to the technical field of batteries, specifically a novel cylindrical battery.

Background

The packaging technology of the cylindrical battery which is commonly used in the industry at present is that a concave pit is formed by punching a shell by using an aluminum plastic film, and the upper edge, the left edge and the right edge are subjected to heat sealing after a roll core is placed in the concave pit, so that the sealing effect is achieved.

However, in the existing packaging technology, after the upper and lower end sockets are packaged, the surface is a flat aluminum-plastic film, but after the aluminum layer in the middle of the aluminum-plastic film is broken, the edge sealing of the arc surface can be subjected to physical impact, and after the aluminum layer in the middle of the aluminum-plastic film is broken, in the process of charging, discharging and storing the battery, electrolyte can continuously corrode the partner layer, so that gas is generated after the battery is stored, and fatality such as liquid leakage is caused; because the soft package battery only depends on the 113um aluminum plastic film to protect the winding core in the battery, when the battery is impacted by external force, the weak aluminum plastic film can not completely protect the winding core, and the anode and cathode contact short circuit caused by external extrusion in the winding core can be caused to form fatal damage; and the top seal of the cylindrical battery occupies 3.5mm to 4.5mm space and the side seal occupies 1.0mm space in the conventional design, so that the space utilization is reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a novel cylinder battery, it is not enough to possess the protection effect higher, promote advantages such as battery capacity, solved that the background art proposes receiving the physics of forcing and dashing the shape after, the banding of cambered surface can receive the physics and strike, cause the battery to deposit the back and produce gas and cause lethality such as weeping bad and weak plastic-aluminum membrane can not protect completely to roll up the core, can cause to roll up the inside positive negative pole contact short circuit that leads to because of extra extrusion of core, form the problem that fatal damage and conventional design cylinder battery space utilization reduce.

(II) technical scheme

For realizing that above-mentioned protection effect is higher, promote the purpose of battery capacity, the utility model provides a following technical scheme: the utility model provides a novel cylindrical battery, includes membrane shell and shell, the inside fixed mounting of membrane shell has a core, it has utmost point ear glue to roll up core side both ends fixed mounting, it glues the fixed connection with anodal ear through one end utmost point ear to roll up the core, it glues the fixed connection with negative pole ear through other end utmost point ear to roll up the core, roll up the inside fixed mounting of core and have the positive plate, the inside fixed surface of positive plate is connected with diaphragm paper, the inside fixed surface of diaphragm paper is connected with the negative pole piece.

Preferably, the bottom of the winding core is positioned in the shell, and the position of the positive tab and the position of the negative tab are diagonal.

Preferably, the membrane shell is made of a steel shell, and the shell is made of an aluminum-plastic membrane.

Preferably, the membrane shell and the outer shell and the winding core are square in shape.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect: this kind of novel cylinder battery, the utility model discloses the inside membrane shell that has a steel-shelled structure of battery is used for protecting and rolls up the core, and our battery security performance is better when using like this, can not cause fatal bad such as short circuit fire because of external force, need not carry out the hem again after the battery encapsulation, has just so guaranteed packaging performance's stability, can not cause fatal bad such as flatulence weeping because of the encapsulation is bad, and it is higher to have reached the protection effect, promotes the purpose of battery capacity, has solved the problem of proposing in the background art.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a membrane shell; 2. a negative tab; 3. a positive plate; 4. a separator paper; 5. a negative plate; 6. a housing; 7. gluing a tab; 8. a positive tab; 9. and (6) winding cores.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Please refer to fig. 1, a novel cylindrical battery, including membrane shell 1 and shell 6, be used for protecting its inside book core 9, the inside fixed mounting of membrane shell 1 has a book core 9, it is the winding battery to roll up core 9, roll up core 9 side both ends fixed mounting and have utmost point ear glue 7, roll up core 9 and glue 7 fixedly connected with anodal ear 8 through one end utmost point ear, roll up core 9 and glue 7 fixedly connected with negative pole ear 2 through other end utmost point ear, roll up the inside fixed mounting of core 9 and have anodal piece 3, the inside fixed surface of anodal piece 3 is connected with diaphragm paper 4, the inside fixed surface of diaphragm paper 4 is connected with negative pole piece 5, roll up core 9 bottom and be located inside the shell 6, the position of anodal ear 8 and the position 2 of negative pole ear are the diagonal angle, the material of membrane shell 1 is the steel casing, the material of shell 6 is the plastic-aluminum membrane, the shape of membrane shell 1 and shell 6 and book core 9 is square, need not carry out the hem after the encapsulation again.

The working principle of the novel cylindrical battery is as follows:

firstly, winding a winding core 9, punching a steel shell membrane shell 1 according to the size of the winding core 9 after the winding core 9 is wound, putting the manufactured winding core 9 into the membrane shell 1, and extending out the anode tab 8 and the cathode tab 2 from opposite angles at two sides of the steel shell membrane shell 1; injecting liquid into the steel shell before packaging, and when the winding core 9 is placed into the steel shell, dropping the electrolyte into the shell to enable the winding core 9 to normally absorb the electrolyte, and packaging after liquid absorption is finished; the upper aluminum-plastic shell 6 is taken down during packaging, the aluminum-plastic film and the processed steel shell are pressed through the end socket, and high-frequency heating packaging is carried out through high-frequency packaging equipment, so that the packaging process between the shell 6 and the film shell 1 is achieved, during packaging, high-frequency packaging is carried out on the outer side of the aluminum-plastic film shell 6, and high temperature is not generated inside the winding core 9; and finally, activating by using low-current constant-current charging after packaging is finished, so that the aims of higher protection effect and improvement of battery capacity are fulfilled.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel cylindrical battery comprises a membrane shell (1) and a shell (6), and is characterized in that: film shell (1) inside fixed mounting has roll core (9), roll up core (9) side both ends fixed mounting and have utmost point ear glue (7), roll up core (9) and glue (7) positive electrode ear (8) through one end utmost point ear, roll up core (9) and glue (7) fixedly connected with negative electrode ear (2) through other end utmost point ear, roll up the inside fixed mounting of core (9) and have positive plate (3), the fixed surface is connected with diaphragm paper (4) in positive plate (3), the fixed surface is connected with negative pole piece (5) in diaphragm paper (4) inside.

2. The novel cylindrical battery of claim 1, wherein: the bottom of the winding core (9) is positioned in the shell (6), and the position of the positive tab (8) and the position of the negative tab (2) are diagonal.

3. The novel cylindrical battery of claim 1, wherein: the membrane shell (1) is made of a steel shell, and the shell (6) is made of an aluminum-plastic membrane.

4. The novel cylindrical battery of claim 1, wherein: the shape of the membrane shell (1), the shell (6) and the winding core (9) is square.