CN216488278U

CN216488278U - Novel corrosion-resistant polymer lithium battery

Info

Publication number: CN216488278U
Application number: CN202122050722.6U
Authority: CN
Inventors: 彭华波
Original assignee: Guangdong Xinchuangyuan Technology Co ltd
Current assignee: Guangdong Xinchuangyuan Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-05-10
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a novel corrosion-resistant polymer lithium battery, which comprises a shell, wherein a battery body is arranged in the shell, the periphery of the outer wall of one end of the shell is connected with the same protective frame through bolts, a fixed frame is welded on one side of the top of the protective frame, the inner wall of one end of the fixed frame is connected with a bidirectional screw through a bearing, a through hole is formed in the other end of the fixed frame, the inner wall of the through hole is connected with a knob welded with one end of the bidirectional screw through the bearing, two ends of the outer wall of the bidirectional screw are both in threaded connection with a movable seat, and one end of the movable seat is welded with a connecting seat. According to the utility model, the battery body is subjected to anti-corrosion treatment through the anti-corrosion layer made of the polytetrafluoroethylene material and in the anti-corrosion structure, so that the battery body and the electrode lugs are positioned in a sealed environment, and the mutual contact of two metal electrode lugs with different electrode potentials when the battery is placed in a concentrated manner is avoided, thereby performing the anti-corrosion treatment on the electrode lugs.

Description

Novel corrosion-resistant polymer lithium battery

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a novel corrosion-resistant polymer lithium battery.

Background

A lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, unlike a lithium ion battery, which is a rechargeable battery, and a lithium ion polymer battery. Lithium ion batteries are classified into liquid lithium ion batteries and polymer lithium ion batteries or plastic lithium ion batteries according to the difference of electrolyte materials used by the lithium ion batteries. The positive and negative electrode materials used by the polymer lithium ion battery are the same as liquid lithium ions, the positive electrode material is divided into lithium cobaltate, lithium manganate, ternary material and lithium iron phosphate material, the negative electrode is graphite, and the working principle of the battery is basically consistent.

At present, there is a certain problem, for example, corrosion problem, in the practical application process of the existing polymer lithium battery, when the polymer lithium battery is placed in a concentrated manner, it is very easy to generate dissimilar metal contact current, and when two metal electrode lugs with different electrode potentials are in contact with each other and are in the same electrolyte solution, the battery will corrode, so that it is urgently needed to design a novel corrosion-resistant polymer lithium battery to solve the above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a novel corrosion-resistant polymer lithium battery.

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

the utility model provides a novel corrosion-resistant polymer lithium cell, which comprises an outer shell, the inside of shell is provided with battery body, and has same protective frame through bolted connection all around the one end outer wall of shell, the welding of top one side of protective frame has fixed frame, and the one end inner wall of fixed frame is connected with the two-way screw rod through the bearing, and the other end of fixed frame is opened there is the through-hole, and the inner wall of through-hole is connected with the knob that welds mutually with two-way screw rod one end through the bearing, the equal threaded connection in outer wall both ends of two-way screw rod has the sliding seat, and the one end of sliding seat has all welded the connecting seat, and first guard plate and second guard plate have been welded respectively to the bottom of connecting seat, and one side of first guard plate and one side of second guard plate all laminate mutually with one side of protective frame.

Preferably, a sealing cover is connected to one side of the case by bolts, and an anti-corrosion structure is provided between one side of the sealing cover and the inner wall of the case and the outer wall of the battery body.

Preferably, the anti-corrosion structure comprises an insulating layer attached to the outer wall of the battery body, the outer wall of the insulating layer is wrapped with an anti-corrosion layer, the anti-corrosion layer is made of polytetrafluoroethylene, and the outer wall of the anti-corrosion layer is wrapped with a protective layer.

Preferably, one side of the anti-corrosion structure and one side of the sealing cover are both provided with two guide holes which are communicated, and both ends of one side of the battery body are provided with electrode lugs which penetrate through the guide holes.

Preferably, the welding of the one end intermediate position of first guard plate has the positioning seat, and the one end intermediate position of second guard plate opens there is the constant head tank, the inner wall of constant head tank and the outer wall looks adaptation of positioning seat.

Preferably, two the sealing plate has all been welded to the one end of connecting seat, and the laminating of one side of sealing plate and one side of fixed frame mutually.

Preferably, the outer wall of one end of the positioning seat and the inner wall of one end of the positioning groove are both bonded with the magnet, and the two magnets adsorb mutually.

The utility model has the beneficial effects that:

1. through the shell that sets up, sealed lid, anticorrosion structure, guide hole, battery body, electrode lug, insulating layer, corrosion resistant layer and protective layer, can have anticorrosion structure and shell with the outer wall parcel of battery body for battery body's electrode lug is worn out from the inside of anticorrosion structure and shell, and the corrosion resistant layer through the polytetrafluoroethylene material in the anticorrosion structure carries out the anticorrosion treatment to battery body.

2. Through the shell that sets up, the protecting frame, fixed frame, the knob, two-way screw rod, the sliding seat, the connecting seat, first guard plate and second guard plate, when using the lithium cell, first guard plate and second guard plate are in the open mode, when not using, the accessible knob drives two-way screw rod and rotates, shorten the distance between two sliding seats and the connecting seat, make first guard plate and second guard plate be close to and close mutually, thereby the through-hole department of the first guard plate of accessible and second guard plate to the shell seals, make battery body and electrode ear be in the sealed environment, avoid the battery to contact mutually at the metal electrode ear of two kinds of different electrode potentials when placing in concentration, thereby can carry out anticorrosion processing to the electrode ear.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a novel corrosion-resistant polymer lithium battery proposed in example 1;

FIG. 2 is a schematic diagram of the structure of the bi-directional screw and the positioning groove of a novel corrosion-resistant polymer lithium battery provided in example 1;

FIG. 3 is a schematic diagram of the structure of a battery body and an electrode tab of a novel corrosion-resistant polymer lithium battery proposed in example 1;

FIG. 4 is a schematic structural diagram of an anticorrosion structure of a novel corrosion-resistant polymer lithium battery as set forth in example 1;

fig. 5 is a schematic view of the structure of a magnet of a novel corrosion-resistant polymer lithium battery proposed in example 2.

In the figure: 1. a housing; 2. a protective frame; 3. a knob; 4. a fixing frame; 5. a first guard plate; 6. positioning seats; 7. a movable seat; 8. a second guard plate; 9. a sealing plate; 10. a connecting seat; 11. a bidirectional screw; 12. positioning a groove; 13. a battery body; 14. an electrode tab; 15. an anti-corrosion structure; 16. a sealing cover; 17. a protective layer; 18. a corrosion-resistant layer; 19. an insulating layer; 20. and (4) a magnet.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-4, a novel corrosion-resistant polymer lithium battery comprises a housing 1, a battery body 13 is arranged inside the housing 1, the periphery of the outer wall of one end of the housing 1 is connected with a protection frame 2 through bolts, a fixed frame 4 is welded on one side of the top of the protection frame 2, the inner wall of one end of the fixed frame 4 is connected with a bidirectional screw 11 through a bearing, the other end of the fixed frame 4 is provided with a through hole, the inner wall of the through hole is connected with a knob 3 welded with one end of the bidirectional screw 11 through a bearing, both ends of the outer wall of the bidirectional screw 11 are in threaded connection with a movable seat 7, one end of the movable seat 7 is welded with a connecting seat 10, the bottom of the connecting seat 10 is respectively welded with a first protection plate 5 and a second protection plate 8, one side of the first protection plate 5 and one side of the second protection plate 8 are both attached to one side of the protection frame 2, and the knob 3 can drive the bidirectional screw 11 to rotate, shorten the distance between two sliding seats 7 and connecting seat 10 for battery body 13 and electrode lug 14 are in the sealed environment, avoid the battery to contact each other at the metal electrode lug of two kinds of different electrode potentials when placing in a concentrated way, thereby can carry out anticorrosive treatment to electrode lug 14.

Wherein, one side of the shell 1 is connected with a sealing cover 16 through bolts, and an anti-corrosion structure 15 is arranged between one side of the sealing cover 16 and the inner wall of the shell 1 and the outer wall of the battery body 13.

Wherein, anticorrosion structure 15 is including laminating the insulating layer 19 at battery body 13 outer wall, and the outer wall parcel of insulating layer 19 has corrosion-resistant layer 18, and corrosion-resistant layer 18's material is polytetrafluoroethylene, and corrosion-resistant layer 18's outer wall parcel has protective layer 17, carries out the anticorrosion through corrosion-resistant layer 18 in the anticorrosion structure 15 to battery body 13 and handles.

Wherein, one side of the anti-corrosion structure 15 and one side of the sealing cover 16 are both provided with two communicating guide holes, and both ends of one side of the battery body 13 are provided with electrode lugs 14 passing through the guide holes.

Wherein, the welding of the one end intermediate position of first guard plate 5 has positioning seat 6, and the one end intermediate position of second guard plate 8 opens and has constant head tank 12, and the inner wall of constant head tank 12 and the outer wall looks adaptation of positioning seat 6 when first guard plate 5 and second guard plate 8 close, can make positioning seat 6 peg graft in constant head tank 12, keep connection stability.

Wherein, the sealing plate 9 has all been welded to the one end of two connecting seats 10, and the laminating of one side of sealing plate 9 and one side of fixed frame 4 mutually utilizes sealing plate 9 to carry out sealing process to one side of fixed frame 4.

The working principle is as follows: the outer wall of the battery body 13 can be wrapped with the anti-corrosion structure 15 and the shell 1, so that the electrode lugs 14 of the battery body 13 penetrate out of the anti-corrosion structure 15 and the shell 1, the battery body 13 is subjected to anti-corrosion treatment through the anti-corrosion layer 18 made of polytetrafluoroethylene in the anti-corrosion structure 15, when the lithium battery is used, the first protection plate 5 and the second protection plate 8 are in an open state, when the lithium battery is not used, the knob 3 can drive the bidirectional screw rod 11 to rotate, the distance between the two movable seats 7 and the connecting seat 10 is shortened, the first protection plate 5 and the second protection plate 8 are close to each other and closed, so that the through hole of the shell 1 can be sealed through the first protection plate 5 and the second protection plate 8, the battery body 13 and the electrode lugs 14 are in a sealing environment, and metal electrode lugs of two different electrode potentials are prevented from being in contact with each other when the battery is placed in a concentrated manner, so that the electrode tab 14 can be subjected to an anti-corrosion treatment.

Example 2

Referring to fig. 5, in this embodiment, compared with embodiment 1, the outer wall of one end of the positioning seat 6 and the inner wall of one end of the positioning groove 12 are both bonded with the magnet 20, and the two magnets 20 are adsorbed.

The working principle is as follows: during the use, when first guard plate 5 and second guard plate 8 are the closed condition, can make the magnet 20 on the positioning seat 6 adsorb mutually with the magnet 20 in the constant head tank 12, keep presenting sealing state between first guard plate 5 and the second guard plate 8 always.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A novel corrosion-resistant polymer lithium battery comprises a shell (1) and is characterized in that a battery body (13) is arranged inside the shell (1), the periphery of the outer wall of one end of the shell (1) is connected with a same protective frame (2) through bolts, a fixed frame (4) is welded on one side of the top of the protective frame (2), the inner wall of one end of the fixed frame (4) is connected with a two-way screw (11) through a bearing, the other end of the fixed frame (4) is provided with a through hole, the inner wall of the through hole is connected with a knob (3) welded with one end of the two-way screw (11) through a bearing, both ends of the outer wall of the two-way screw (11) are in threaded connection with a movable seat (7), a connecting seat (10) is welded on one end of the movable seat (7), and a first protective plate (5) and a second protective plate (8) are welded on the bottom of the connecting seat (10) respectively, one side of the first protection plate (5) and one side of the second protection plate (8) are attached to one side of the protection frame (2).

2. A novel corrosion-resistant polymer lithium battery as claimed in claim 1, characterized in that a sealing cover (16) is bolted to one side of the casing (1), and an anti-corrosion structure (15) is provided between one side of the sealing cover (16) and the inner wall of the casing (1) and the outer wall of the battery body (13).

3. The novel corrosion-resistant polymer lithium battery as claimed in claim 2, wherein the corrosion-resistant structure (15) comprises an insulating layer (19) attached to the outer wall of the battery body (13), the outer wall of the insulating layer (19) is wrapped with a corrosion-resistant layer (18), the corrosion-resistant layer (18) is made of polytetrafluoroethylene, and the outer wall of the corrosion-resistant layer (18) is wrapped with a protective layer (17).

4. A novel corrosion-resistant polymer lithium battery as claimed in claim 3, wherein one side of the corrosion-resistant structure (15) and one side of the sealing cover (16) are provided with two communicating guide holes, and both ends of one side of the battery body (13) are provided with electrode tabs (14) passing through the guide holes.

5. The novel corrosion-resistant polymer lithium battery as claimed in claim 4, wherein the positioning seat (6) is welded at the middle position of one end of the first protection plate (5), the positioning groove (12) is formed at the middle position of one end of the second protection plate (8), and the inner wall of the positioning groove (12) is matched with the outer wall of the positioning seat (6).

6. A novel corrosion-resistant polymer lithium battery as claimed in any one of claims 1 to 5, wherein a sealing plate (9) is welded to one end of each of the two connecting seats (10), and one side of the sealing plate (9) is attached to one side of the fixing frame (4).

7. The novel corrosion-resistant polymer lithium battery as claimed in claim 5, wherein the outer wall of one end of the positioning seat (6) and the inner wall of one end of the positioning groove (12) are both bonded with the magnet (20), and the two magnets (20) are adsorbed.