CN218448151U

CN218448151U - Anti-corrosion lithium battery

Info

Publication number: CN218448151U
Application number: CN202222375465.8U
Authority: CN
Inventors: 吴富权; 王朝举
Original assignee: Shenzhen Csip Science & Technology Co ltd
Current assignee: Shenzhen Csip Science & Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-02-03
Anticipated expiration: 2032-09-07

Abstract

The utility model relates to a lithium cell technical field just discloses an anticorrosive lithium cell, including lithium cell main part, lithium cell main part's surface slidable pegs graft and has the protection branch pipe, the inner wall spiral shell of protection branch pipe is equipped with the end cover, the screw hole of ventilating has all been seted up on the bottom of protection branch pipe and end cover's top, every group the equal spiral shell of inner wall of screw hole of ventilating is equipped with the sealing plug, multiunit pressure release hole has been seted up to the bottom of protection branch pipe. This anticorrosive lithium cell through protection branch pipe and end cover, when deflagration appears in adjacent device, protection branch pipe and end cover form the protection space in lithium cell main part's the outside, and the impact force and the flame that lithium cell main part deflagration in-process produced are isolated by the protection space, have greatly reduced the device and have been ignited the probability that produces chain reaction, have effectively improved the security of device at the operation in-process to the practicality of device has been strengthened.

Description

Anti-corrosion lithium battery

Technical Field

The utility model relates to a lithium cell technical field specifically is an anticorrosive lithium cell.

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, the lithium metal battery is firstly proposed and researched by Gilbert N.Lewis in 1912, and the lithium battery is proposed and researched by M.S. Whittingham in the 70 th century of 20 th, because the chemical properties of the lithium metal are very active, the lithium metal has very high requirements on the environment during processing, storage and use, and the lithium battery becomes the mainstream along with the development of scientific technology.

Lithium cell among the prior art discovers when using, because the lithium cell receives easy combustion and explosion after damaging, leads to damaging the lithium cell near lithium cell and easily ignites and produce chain reaction, has reduced the security of device in the operation in-process to the practicality of device has been influenced.

Based on this, the utility model designs an anticorrosive lithium cell to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a lithium cell that anticorrosives has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an anticorrosive lithium cell, includes lithium cell main part, lithium cell main part's surface slidable pegs graft and has the protection branch pipe, the inner wall spiral shell of protection branch pipe is equipped with end cover, the bottom of protection branch pipe and end cover's top have all seted up the screw hole of ventilating, every group the equal spiral shell of inner wall of the screw hole of ventilating is equipped with sealed plug, multiunit pressure release hole, every group have been seted up to the bottom of protection branch pipe the inside in pressure release hole all is provided with pressure relief board, two sets of circular telegram holes have been seted up on end cover's top, every group the inner wall in circular telegram hole all is equipped with the circular telegram contact, every group the input of circular telegram contact all is connected with lithium cell main part's output electricity.

Preferably, the inner walls of the protection branch pipes and the sealing end covers are provided with a plurality of groups of suspension guide frames, and the inner side surfaces of the suspension guide frames are attached to the outer surface of the lithium battery main body.

Preferably, the outer surfaces of the protection branch pipe and the sealing end cover are provided with a plurality of groups of reinforcing ring ribs, and longitudinal reinforcing ribs are arranged between every two adjacent groups of reinforcing ring ribs.

Preferably, the outer surfaces of the protection branch pipe and the sealing end cover are provided with a plurality of groups of radiating grooves, and the depth of each group of radiating grooves is one half of the wall thickness of the protection branch pipe or the sealing end cover.

Preferably, the middle part of each group of the power-on contacts is provided with a fusing guide sheet, and the fusing current of each group of the fusing guide sheets is one half to five times of the rated current of the lithium battery main body.

Preferably, the top end of the sealing end cover is provided with an information identifier, and the top of the information identifier is provided with brief introduction information.

(III) advantageous effects

Compared with the prior art, the utility model provides a lithium cell that anticorrosives possesses following beneficial effect:

1. this anticorrosive lithium cell through protection branch pipe and end cover, when deflagration appears in adjacent device, protection branch pipe and end cover form the protection space in lithium cell main part's the outside, and the impact force and the flame that lithium cell main part deflagration in-process produced are isolated by the protection space, have greatly reduced the device and have been ignited the probability that produces chain reaction, have effectively improved the security of device at the operation in-process to the practicality of device has been strengthened.

2. This anticorrosive lithium cell through the screw hole of ventilating, makes inert gas pour into the protection space that protection branch pipe and end cover constitute, and the screw hole of ventilating is discharged from the downside under inert gas's extrusion to the air in the protection space, then will ventilate the screw hole through sealed plug and seal, and lithium cell main part oxidation rate under the inert gas protection reduces this moment, has effectively improved the life of device, has greatly reduced the speed that lithium cell main part oxidation became invalid to the suitability of device has been strengthened.

3. This anticorrosive lithium cell, through the pressure release board, when deflagration situation appears in lithium cell main part, produce great atmospheric pressure in the protection space that protection branch pipe and end cover constitute, the pressure release board is broken under the atmospheric pressure effect, and gas and flame in this in-process protection space pass through the pressure release hole and discharge, have effectively reduced the impact force of device deflagration in-process to adjacent device, have greatly improved the security of device to the practicality of device has been strengthened.

Drawings

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

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

fig. 3 is a schematic diagram of the explosion of the three-dimensional structure of the present invention.

In the figure: 1. a lithium battery main body; 2. a protective branch pipe; 3. sealing the end cover; 4. sealing the pipe plug; 5. a pressure relief plate; 6. a power-on contact; 7. a suspended guide frame; 8. reinforcing ring ribs; 9. longitudinal reinforcing ribs; 10. a heat sink; 11. fusing the guide sheet; 12. and (5) information identification.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an anti-corrosion lithium battery comprises a lithium battery main body 1, a protective branch pipe 2 is inserted in the outer surface of the lithium battery main body 1 in a sliding way, a sealing end cover 3 is screwed on the inner wall of the protective branch pipe 2, when deflagration occurs in an adjacent device through the protective branch pipe 2 and the sealing end cover 3, a protective space is formed outside the lithium battery main body 1 by the protective branch pipe 2 and the sealing end cover 3, the impact force and flame generated in the deflagration process of the lithium battery main body 1 are isolated by the protective space, the probability of chain reaction generated after the device is ignited is greatly reduced, the safety of the device in the operation process is effectively improved, the practicability of the device is enhanced, ventilation threaded holes are formed in the bottom end of the protective branch pipe 2 and the top end of the sealing end cover 3, and inert gas is injected into the protective space formed by the protective branch pipe 2 and the sealing end cover 3 through the ventilation threaded holes, air in the protective space is discharged from the lower side ventilation threaded hole under the extrusion of inert gas, then the ventilation threaded hole is sealed through the sealing plug 4, at the moment, the oxidation speed of the lithium battery main body 1 under the protection of the inert gas is reduced, the service life of the device is effectively prolonged, the oxidation failure speed of the lithium battery main body 1 is greatly reduced, the applicability of the device is enhanced, the sealing plug 4 is screwed on the inner wall of each ventilation threaded hole, a plurality of groups of pressure relief holes are formed in the bottom of the protective branch pipe 2, pressure relief plates 5 are arranged inside each group of pressure relief holes, when the lithium battery main body 1 is subjected to a deflagration condition, greater air pressure is generated in the protective space formed by the protective branch pipe 2 and the sealing end cover 3, the pressure relief plates 5 are broken under the action of the air pressure, in the process, the air and flame in the protective space are discharged through the holes, and the impact force on adjacent devices in the deflagration process of the device is effectively reduced, the safety of the device is greatly improved, so that the practicability of the device is enhanced, two groups of power-on holes are formed in the top end of the sealing end cover 3, the inner wall of each group of power-on holes is provided with the power-on contacts 6, and the input ends of the power-on contacts 6 of each group are electrically connected with the output end of the lithium battery main body 1.

The utility model discloses in, in order to improve the convenience of device at the inflation in-process to inner wall at protection branch pipe 2 and end cover 3 all is provided with the multiunit and is used for providing unsettled guide 7 of route at the inflation in-process, and the medial surface of unsettled guide 7 of every group all laminates with lithium cell main part 1's surface, thereby has improved the convenience of device at the inflation in-process.

The utility model discloses in, for the structural strength who improves the device to surface at protection branch pipe 2 and end cover 3 all is provided with multiunit beaded finish muscle 8, all is equipped with vertical strengthening rib 9 between two sets of adjacent beaded finish muscle 8, through beaded finish 8 and vertical strengthening rib 9, makes the external surface of protection branch pipe 2 and end cover 3 form netted additional strengthening, thereby has improved the structural strength of device.

The utility model discloses in, for the heat-sinking capability of improving device to all set up the radiating groove 10 that the multiunit is used for improving device heat radiating area at protection branch pipe 2 and end cover 3's surface, the degree of depth of every group radiating groove 10 is the half of protection branch pipe 2 or the 3 wall thicknesses of end cover, thereby has improved the heat-sinking capability of device.

The utility model discloses in, lead to the probability that lithium cell main part 1 damaged in order to reduce the current abnormity to all be provided with at the middle part of every group circular telegram contact 6 and be used for the fusing guide vane 11 with its disconnection behind the current abnormity, the fusing current of every group fusing guide vane 11 is one and a bit of quintupling of lithium cell main part 1 rated current, thereby has reduced the probability that the current abnormity leads to lithium cell main part 1 to damage.

The utility model discloses in, in order to improve the convenience of confirming device each item information to be provided with information sign 12 on end cover 3's top, information sign 12's top is provided with brief introduction information, through the brief introduction information at information sign 12 top, makes operating personnel confirm device each item information fast, thereby has improved the convenience of confirming device each item information.

When the explosion-proof lithium battery is used, inert gas is injected into a protection space formed by the protection branch pipe 2 and the sealing end cover 3 through the ventilation threaded hole on the upper side, air in the protection space is discharged from the ventilation threaded hole on the lower side under the extrusion of the inert gas, then the ventilation threaded hole is sealed through the sealing plug 4, the oxidation speed of the lithium battery main body 1 under the protection of the inert gas is reduced, when the explosion condition occurs in the lithium battery main body 1, larger air pressure is generated in the protection space formed by the protection branch pipe 2 and the sealing end cover 3, the pressure relief plate 5 is broken under the action of the air pressure, gas and flame in the protection space are discharged through the pressure relief hole in the process, when the explosion occurs in an adjacent device, the protection branch pipe 2 and the sealing end cover 3 form a protection space outside the lithium battery main body 1, and impact force and flame generated in the explosion-proof process of the lithium battery main body 1 are isolated by the protection space.

To sum up, this anticorrosive lithium cell through protection branch pipe 2 and end cover 3, when deflagration appears in adjacent device, protection branch pipe 2 and end cover 3 form the protection space in lithium cell main part 1's the outside, and the impact force and the flame that lithium cell main part 1 deflagration in-process produced are isolated by the protection space, have greatly reduced the device and have been ignited the probability that produces chain reaction, have effectively improved the security of device at the operation in-process to the practicality of device has been strengthened.

This anticorrosive lithium cell, through the screw hole of ventilating, make inert gas pour into the protection space that protection branch pipe 2 and end cover 3 constitute, the screw hole discharge is ventilated from the downside under inert gas's extrusion to the air in the protection space, then it is sealed to ventilate the screw hole through sealed

plug

4, 1 oxidation rate of lithium cell main part under the inert gas protection reduces this moment, the life of device has effectively been improved, the speed that 1 oxidation of lithium cell main part became invalid has greatly been reduced, thereby the suitability of device has been strengthened.

This anticorrosive lithium cell, through pressure release board 5, when deflagration situation appears in lithium cell main part 1, produce great atmospheric pressure in the protective space that protective branch pipe 2 and end cover 3 constitute, pressure release board 5 is broken under the atmospheric pressure effect, and gas and flame in this in-process protective space pass through the pressure release hole and discharge, have effectively reduced the impact force of device deflagration in-process to adjacent device, have greatly improved the security of device to the practicality of device has been strengthened.

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. An anti-corrosion lithium battery comprising a lithium battery main body (1), characterized in that: the utility model discloses a lithium battery pack, including lithium cell main part (1), the surface slidable of lithium cell main part (1) is pegged graft and is had protection branch pipe (2), end cover (3) are equipped with to the inner wall spiral shell of protection branch pipe (2), the screw hole of ventilating has all been seted up on the bottom of protection branch pipe (2) and the top of end cover (3), every group the equal spiral shell of inner wall of the screw hole of ventilating is equipped with sealing plug (4), multiunit pressure release hole has been seted up to the bottom of protection branch pipe (2), every group the inside in pressure release hole all is provided with pressure release board (5), two sets of circular telegram holes have been seted up on the top of end cover (3), every group the inner wall in circular telegram hole all is equipped with circular telegram contact (6), every group the input of circular telegram contact (6) all is connected with the output electricity of lithium cell main part (1).

2. A corrosion-resistant lithium battery as claimed in claim 1, wherein: the inner walls of the protection branch pipes (2) and the sealing end covers (3) are provided with a plurality of groups of suspended guide frames (7), and the inner side faces of the suspended guide frames (7) are attached to the outer surface of the lithium battery main body (1).

3. A corrosion-resistant lithium battery as claimed in claim 1, wherein: the outer surfaces of the protection branch pipes (2) and the sealing end covers (3) are provided with a plurality of groups of reinforcing ring ribs (8), and the reinforcing ring ribs (8) are adjacent to each other in a two-group mode, and longitudinal reinforcing ribs (9) are arranged between the reinforcing ring ribs (8).

4. An anti-corrosion lithium battery according to claim 1, characterized in that: the outer surfaces of the protection branch pipes (2) and the sealing end covers (3) are provided with a plurality of groups of heat dissipation grooves (10), and the depth of each group of heat dissipation grooves (10) is one half of the wall thickness of the protection branch pipes (2) or the sealing end covers (3).

5. An anti-corrosion lithium battery according to claim 1, characterized in that: and the middle part of each group of the power-on contacts (6) is provided with a fusing guide sheet (11), and the fusing current of each group of the fusing guide sheets (11) is one to five times of the rated current of the lithium battery main body (1).

6. A corrosion-resistant lithium battery as claimed in claim 1, wherein: the top end of the sealing end cover (3) is provided with an information identifier (12), and the top of the information identifier (12) is provided with brief introduction information.