CN216773362U

CN216773362U - Full-sealed steel shell battery

Info

Publication number: CN216773362U
Application number: CN202122785427.5U
Authority: CN
Inventors: 邓亚西
Original assignee: Guangdong Vdl New Energy Co ltd
Current assignee: Guangdong Vdl New Energy Co ltd
Priority date: 2021-11-13
Filing date: 2021-11-13
Publication date: 2022-06-17
Anticipated expiration: 2031-11-13

Abstract

The utility model discloses a fully-sealed steel shell battery, which comprises an upper cover, wherein a lower cover is arranged at the lower end of the upper cover, a liquid injection port and an electrode port are arranged on the side edge of the lower cover, a sealing steel sheet is arranged on the outer side of the liquid injection port, an insulating layer is arranged on the outer side of the electrode port, and a positive electrode is arranged on the outer side of the insulating layer. This totally enclosed steel-shelled battery to the casing that the thickness is thinner, can avoid during the welding because of the casing too thin lead to weld destroy the welding position and weld sealed bad that partially leads to, can use thinner shell simultaneously, the battery inner space is bigger, sealing performance is stronger, and battery capacity is higher, and moisture content is difficult to get into the inside adverse reaction that causes of battery, and battery performance is more stable, the storage time is longer, and the cycle time is longer, and battery duration is advantages such as longer.

Description

Full-sealed steel shell battery

Technical Field

The utility model belongs to the technical field of batteries, and particularly relates to a full-sealed steel shell battery.

Background

With the rapid development of science and technology, more and more electronic products are in the visual field of people, and in order to meet the multi-scene mobile requirements of users, the electronic products have increasingly stronger functions and continuously reduced sizes and weights, so that increasingly severe requirements are provided for batteries serving as power sources of the electronic products.

However, the upper cover and the lower cover of most steel shell batteries are spliced together in a combined splicing mode, the upper cover and the lower cover are not connected tightly enough, the sealing performance is poor, leakage is easy to occur, and safety threat is caused. In view of the above problems, there is a need to design a fully sealed steel can battery.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

The utility model aims to provide a full-sealed steel shell battery, which aims to solve the problems of small internal space and poor sealing property of the battery in the background technology.

(2) Technical scheme

In order to solve the technical problem, the utility model provides a fully-sealed steel shell battery which comprises an upper cover, wherein a lower cover is arranged at the lower end of the upper cover, a liquid injection port and an electrode port are formed in the side edge of the lower cover, a sealing steel sheet is arranged on the outer side of the liquid injection port, an insulating layer is arranged on the outer side of the electrode port, and a positive electrode is arranged on the outer side of the insulating layer

When the button cell adopting the technical scheme is used, firstly, the anode and the cathode are insulated into a whole on a single shell in a riveting mode, the single shell with the anode and the cathode is formed, then the appearance of the shell of the lower cover is scanned by equipment, the upper cover and the lower cover are closed, the equipment performs all-dimensional peripheral welding along the outer edge of the lower cover by 0.1mm during welding through scanning memory, the welding position is cut outwards by 0.1mm after welding is finished, the shape of the complete cell is formed, then the inside of the lower cover is vacuumized, electrolyte is injected through the electrolyte injection port, the sealing steel sheet is welded on the lower cover, and sealing is completed.

Preferably, the upper cover coincides with the center point of the lower cover, the radius of the upper cover is 0.5mm larger than that of the lower cover, and the upper cover and the lower cover are welded, so that welding operation is facilitated, and falling is not easy to occur.

Preferably, the liquid injection port and the electrode port are arranged on the same side of the lower cover, and the liquid injection port is arranged above the electrode port, so that the structure is stable, and the appearance is attractive.

Preferably, the area of the sealing steel sheet is larger than that of the liquid injection port, and the sealing steel sheet is welded with the liquid injection port, so that further welding operation is facilitated, and the sealing steel sheet is not easy to fall off.

Preferably, the opening of the electrode opening is wrapped by an insulating layer, an anode is arranged outside the insulating layer and is H-shaped, the structure is stable, the insulating layer is additionally arranged, and the safety of the whole battery in the using process is improved.

Preferably, the size of the electrode opening is the sum of the thickness of the middle part of the positive electrode and the thickness of the insulating layer, the opening distances of two sides of the electrode are the sum of the thickness of the lower cover and the thickness of the insulating layer, and the steel shell battery is tightly attached to ensure that the steel shell battery is totally closed, so that the sealing performance is good, no leakage occurs, the safety is high, the battery performance is stable, the storage time is long, the cycle time is long, and the battery has strong cruising ability.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: this totally enclosed steel-shelled battery to the casing that the thickness is thinner, can avoid during the welding because of the casing too thin lead to weld destroy the welding position and weld sealed bad that partially leads to, can use thinner shell simultaneously, the battery inner space is bigger, sealing performance is stronger, and battery capacity is higher, and moisture content is difficult to get into the inside adverse reaction that causes of battery, and battery performance is more stable, the storage time is longer, and the cycle time is longer, and battery duration is advantages such as longer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention before sealing;

FIG. 2 is a schematic view of the sealed structure of the present invention;

FIG. 3 is a schematic top view of the present invention;

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

FIG. 5 is a schematic structural diagram of a specially-shaped battery of the present invention;

fig. 6 is a schematic view of a D-shaped cell according to the present invention.

Description of the drawings: 1. an upper cover; 2. a lower cover; 3. a liquid injection port; 4. an electrode port; 5. sealing the steel sheet; 6. an insulating layer; 7. and (4) a positive electrode.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood and obvious, the technical solutions in the embodiments of the present invention are clearly and completely described below to further illustrate the utility model, and obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.

Example 1

Referring to fig. 1, the fully-sealed steel-shell battery comprises an upper cover 1, wherein a lower cover 2 is mounted at the lower end of the lower cover 1, a liquid injection port 3 and an electrode port 4 are formed in the side edge of the lower cover 2, a sealing steel sheet 5 is mounted on the outer side of the liquid injection port 3, an insulating layer 6 is mounted on the outer side of the electrode port 4, and an anode 7 is arranged on the outer side of the insulating layer 6.

For the present embodiment, the specification of the housing 1 can be adjusted according to the use requirement.

Example 2

Referring to fig. 2-6, a fully sealed steel-shell battery includes an upper cover 1, a lower cover 2 is mounted at the lower end of the upper cover 1, a liquid injection port 3 and an electrode port 4 are disposed at the side of the lower cover 2, a sealing steel sheet 5 is mounted at the outer side of the liquid injection port 3, an insulating layer 6 is mounted at the outer side of the electrode port 4, and an anode 7 is disposed at the outer side of the insulating layer 6.

The center points of the upper cover 1 and the lower cover 2 are coincided, the radius of the upper cover 1 is 0.5mm larger than that of the lower cover 2, and the upper cover 1 and the lower cover 2 are connected in a welding mode, so that welding operation is convenient to carry out, and falling is not prone to occurring.

The liquid injection port 3 and the electrode port 4 are arranged on the same side of the lower cover 2, and the liquid injection port 3 is arranged above the electrode port 4, so that the structure is stable, and the appearance is attractive.

The area of the sealing steel sheet 5 is larger than that of the liquid injection port 3, and the sealing steel sheet 5 is connected with the liquid injection port 3 in a welding mode, so that further welding operation is facilitated, and the sealing steel sheet is not easy to fall off.

The opening of the electrode port 4 is wrapped by an insulating layer 6, the positive electrode 7 is H-shaped and stable in structure, and the insulating layer is additionally arranged, so that the safety of the whole battery in the using process is improved.

The size of the electrode port 4 is the sum of the thickness of the middle part of the anode 7 and the thickness of the insulating layer 6, the opening distances of two sides of the anode 7 are the sum of the thickness of the lower cover 2 and the thickness of the insulating layer 6, the steel shell battery is tightly attached to the lower cover to be fully sealed, the sealing performance is good, leakage cannot occur, the safety is high, the performance of the battery is stable, the storage time is long, the cycle time is long, and the battery has strong cruising ability.

The battery is suitable for special-shaped batteries and D-shaped batteries besides the rectangular structure in the embodiment.

When the button cell in the technical scheme is used, firstly, the anode 7 and the cathode are insulated into a whole on a single shell in a riveting mode to form a single shell with the anode and the cathode, then, equipment scans the shell shape of the lower cover 2 firstly, the outer edge of the upper cover 1 is 0.5mm larger than that of the lower cover 2, the upper cover 1 and the lower cover 2 are closed, the equipment performs all-dimensional peripheral welding along the outer edge of the lower cover by 0.1mm during welding through scanning memory, after welding, the cutting is performed along the welding position to the outside by 0.1mm to form a complete cell shape, then, the inside of the lower cover 2 is vacuumized, then, electrolyte is injected through the liquid injection port 3, the sealing steel sheet 4 is welded on the lower cover 2, and sealing is completed.

Having thus described the principal technical features and basic principles of the utility model, and the advantages associated therewith, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description is described in terms of various embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art will recognize that the embodiments described herein can be combined as a whole to form other embodiments as would be understood by those skilled in the art.

Claims

1. The utility model provides a totally enclosed steel-shelled battery, includes upper cover (1), its characterized in that: lower cover (2) are installed to upper cover (1) lower extreme, lower cover (2) side is provided with annotates liquid mouth (3) and electrode mouth (4), annotate the liquid mouth (3) outside and install and seal steel sheet (5), insulating layer (6) are installed in electrode mouth (4) outside, the insulating layer (6) outside is provided with anodal (7).

2. A fully sealed steel can battery according to claim 1, wherein: the center points of the upper cover (1) and the lower cover (2) are overlapped, the radius of the upper cover (1) is 0.5mm larger than that of the lower cover (2), and the upper cover (1) is connected with the lower cover (2) in a welding mode.

3. A fully sealed steel can battery according to claim 1, wherein: the liquid injection port (3) and the electrode port (4) are arranged on the same side of the lower cover (2), and the liquid injection port (3) is arranged above the electrode port (4).

4. A fully sealed steel can battery according to claim 1, wherein: the area of the sealing steel sheet (5) is larger than that of the liquid injection port (3), and the sealing steel sheet (5) is connected with the liquid injection port (3) in a welding mode.

5. A fully sealed steel can battery according to claim 1, wherein: the opening of the electrode port (4) is wrapped by an insulating layer (6), and the positive electrode (7) is H-shaped.

6. A fully sealed steel can battery according to claim 1, wherein: the size of the electrode opening (4) is the sum of the thickness of the middle part of the anode (7) and the thickness of the insulating layer (6), and the opening distance of two sides of the anode (7) is the sum of the thickness of the lower cover (2) and the thickness of the insulating layer (6).