CN213989111U

CN213989111U - Soft package lithium battery structure with explosion-proof valve

Info

Publication number: CN213989111U
Application number: CN202023175380.2U
Authority: CN
Inventors: 刘冀祥; 曾怡
Original assignee: Tangshan Aerospace Wanyuan Technology Co ltd
Current assignee: Tangshan Aerospace Wanyuan Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-17
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a soft packet of lithium cell structure with explosion-proof valve, including soft packet of battery external member, the inside fixedly connected with electricity core of soft packet of external member, the outer fixed surface of electricity core is connected with the aluminium and is moulded the shell, the top of the aluminium mould shell just is close to the anodal utmost point ear of left side fixedly connected with, is the top of the aluminium mould shell and is close to right side fixedly connected with negative pole utmost point ear, the oval metal pipe of top fixedly connected with of the aluminium mould shell, the one-way explosion-proof valve of top fixedly connected with of oval metal pipe, the bottom of oval metal pipe extends to the inside of the aluminium mould shell, the position of oval metal pipe is located the centre of anodal utmost point ear and negative pole utmost point ear. The utility model discloses, when the battery produces the flatulence dangerous accidents such as the smoking is caught fire easily, the invention lets the gas that produces discharge to the battery outside through the mode of explosion-proof valve, reduces dangerous emergence.

Description

Soft package lithium battery structure with explosion-proof valve

Technical Field

The utility model relates to a novel technical field of lithium cell especially relates to soft packet of lithium cell structure with explosion-proof valve.

Background

The soft-package lithium battery is widely applied to the fields of vehicle-mounted power, energy storage, research and development and other new energy. In the process of developing a new battery, dangerous events such as battery inflation and smoking often occur in the process of testing the battery due to unknown formula effect, and if the dangerous events are not processed in time, fire hazard and even explosion can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the soft packet of lithium cell structure with explosion-proof valve that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: soft packet of lithium cell structure with explosion-proof valve, including soft packet of battery external member, the inside fixedly connected with electric core of soft packet of external member, the outer fixed surface of electric core is connected with the aluminium and is moulded the shell, the top of the aluminium mould shell just is close to the anodal utmost point ear of left side fixedly connected with, is the top of the aluminium mould shell and just is close to right side fixedly connected with negative pole utmost point ear, the oval metal pipe of top fixedly connected with of the aluminium mould shell, the one-way explosion-proof valve of top fixedly connected with of oval metal pipe.

As a further description of the above technical solution:

the bottom of the oval metal conduit extends to the inside of the aluminum plastic shell, and the oval metal conduit is positioned between the positive pole lug and the negative pole lug.

The utility model discloses following beneficial effect has:

compared with the prior art, the soft package lithium battery structure with the explosion-proof valve is easy to generate dangerous accidents such as smoking, fire and the like when the battery generates flatulence.

Drawings

Fig. 1 is a schematic view of the internal structure of a soft-packaged lithium battery structure with an explosion-proof valve provided by the present invention;

fig. 2 is the utility model provides a soft packet of lithium cell structure's external structure schematic diagram with explosion-proof valve.

Illustration of the drawings:

1. a positive electrode tab; 2. an explosion-proof valve; 3. an aluminum plastic shell; 4. an elliptical metal conduit; 5. an electric core; 6. and a negative pole tab.

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.

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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, 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.

Referring to fig. 1-2, the utility model provides a soft packet of lithium cell structure with explosion-proof valve: including the laminate polymer battery external member, the inside fixedly connected with electric core 5 of laminate polymer external member, the outer fixed surface of electric core 5 is connected with the aluminium and is moulded the shell 3, and the top of the aluminium and mould the shell 3 just is close to the anodal utmost point ear 1 of left side fixedly connected with, is the top of the aluminium and plastic shell 3 and just is close to right side fixedly connected with negative pole utmost point ear 6, the oval metal pipe 4 of top fixedly connected with of aluminium and plastic shell 3, oval metal pipe 4's one-way explosion-proof valve 2 of top fixedly connected with.

The bottom of the oval metal conduit 4 extends to the inside of the aluminum plastic shell 3, and the oval metal conduit 4 is located between the positive electrode tab 1 and the negative electrode tab 6.

The working principle is as follows: the flatulence phenomenon takes place for the battery, and gaseous can be full of aluminium and mould 3 to along the position that the explosion-proof valve 2 can be reachd to oval metal conduit 4 gas, along with the aggravation of the inside chemical reaction of battery, the gaseous meeting of production is more and more, reaches explosion-proof valve 2 when gas pressure and sets for pressure, and explosion-proof valve 2 can be opened by automatic springing, releases the inside gaseous that produces of battery, reduces the possibility that dangerous takes place.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Soft packet of lithium cell structure with explosion-proof valve, including soft packet of battery external member, its characterized in that: the inside fixedly connected with electric core (5) of soft package external member, the surface fixedly connected with aluminium of electric core (5) moulds the shell (3), the top of the aluminium of moulding the shell (3) just is close to the anodal utmost point ear of left side fixedly connected with (1), and the top of the aluminium of moulding the shell (3) just is close to right side fixedly connected with negative pole utmost point ear (6), the oval metal pipe of top fixedly connected with (4) of the aluminium of moulding the shell (3), the one-way explosion-proof valve of top fixedly connected with (2) of oval metal pipe (4).

2. The lithium battery pack structure with an explosion-proof valve according to claim 1, wherein: the bottom of the oval metal conduit (4) extends to the inside of the aluminum plastic shell (3), and the oval metal conduit (4) is located between the positive pole lug (1) and the negative pole lug (6).