CN220856852U

CN220856852U - Columnar lithium battery

Info

Publication number: CN220856852U
Application number: CN202322636085.XU
Authority: CN
Inventors: 冯超聪; 汤伟
Original assignee: Dongguan Mangrove New Energy Co ltd
Current assignee: Dongguan Mangrove New Energy Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-04-26
Anticipated expiration: 2033-09-26

Abstract

The utility model relates to the field of lithium batteries, in particular to a columnar lithium battery, which comprises a shell, wherein a spacer block divided into an upper space and a lower space is arranged in the shell, electrolyte, a carbon rod and a zinc copper block, one end of which is soaked in the electrolyte, are filled in the lower space, a gasket connected with the zinc copper block and conducting electricity is arranged at the bottom of the shell, a metal cap with the middle part ejected out of the shell is arranged in the upper space, a slot for inserting the carbon rod and sliding tightly against the inner wall is arranged at the bottom of the metal cap, and at least two spring pieces supported at the bottom of the metal cap are arranged in the upper space. The length of the metal cap ejected is lengthened at one end of the positive electrode of the lithium battery, and the length of the carbon rod inserted into the metal cap is used for adjusting the distance of the metal cap ejected, so that the protruding length of one end of the positive electrode of the lithium battery is flexibly changed, the length of the whole lithium battery is changed under the condition that the power is not interrupted in the interior, and different use requirements are met.

Description

Columnar lithium battery

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a columnar lithium battery.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment. With the development of science and technology, lithium batteries have become the mainstream.

The columnar lithium battery is of a common structure, and after the columnar lithium battery is connected, the columnar lithium battery is electrified through contacting with the positive electrode at the top and the negative electrode at the bottom, so that the columnar lithium battery is commonly used for products such as toys with smaller power. However, the lithium battery is fixed in length and is generally used for products matched with the battery slot, and if the lithium battery is too long or too short, the lithium battery cannot be used.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a columnar lithium battery, which can effectively solve the technical problem that the length of the current lithium battery is fixed and cannot be adjusted.

The technical scheme adopted for solving the technical problems is as follows:

The utility model provides a column lithium cell, includes the casing, be equipped with the spacer block that divides into upper space and lower space in the casing, lower space intussuseption is filled with electrolyte and one end and is soaked carbon rod and zinc copper block in the electrolyte, the casing bottom is equipped with the gasket of being connected electrically conductive with zinc copper block, be equipped with the metal cap of the ejecting casing in middle part in the upper space, the metal cap bottom is equipped with inserts the carbon rod and hugs closely the gliding slot of inner wall, the upper space is equipped with two at least spring pieces that support in the metal cap bottom.

Further, the zinc copper block is connected to the bottom of the lower space and is provided with a concave-convex surface fixed with the shell.

Further, the other end of the carbon rod crosses the upper space and is connected with the metal cap, and the carbon rod is provided with a clamping part which is fixedly clamped with the spacer block.

Further, an insulating gasket with a central opening is arranged at the bottom of the metal cap, and the carbon rod is inserted into the central opening of the insulating gasket.

Further, the bottom of the upper space is provided with a clamping groove for limiting and fixing the spring piece.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the ejection length of the metal cap is prolonged at one end of the positive electrode of the lithium battery, and the ejection distance of the metal cap is adjusted by the length of the carbon rod inserted into the metal cap, so that the protruding length of one end of the positive electrode of the lithium battery is flexibly changed, the length of the whole lithium battery is changed under the condition that the power is not interrupted in the interior, different use requirements are met, and the practicability is strong.

Drawings

Fig. 1 is a schematic view of the external structure of a cylindrical lithium battery according to the present utility model;

Fig. 2 is a schematic diagram of the internal structure of a cylindrical lithium battery according to the present utility model;

Reference numerals in the drawings:

1-shell, 2-upper space, 3-lower space, 4-spacer block, 5-electrolyte, 6-carbon rod, 7-zinc copper block, 8-gasket, 9-metal cap, 10-slot, 11-spring piece, 12-concave-convex surface, 13-clamping part, 14-insulating washer and 15-clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the utility model provides a columnar lithium battery, which comprises a shell 1, wherein a spacer 4 divided into an upper space 2 and a lower space 3 is arranged in the shell 1, the inner part of the shell 1 is divided into two independent spaces by the spacer 4, wherein the lower space 3 is used for containing electrolyte 5 and conducting electricity after the electrolyte reacts, the upper space 2 is used for conducting electricity and adjusting a metal cap 9 at the positive end of the lithium battery, and the length problem of the whole lithium battery is changed by adjusting the metal cap 9.

The electrolyte 5 and the carbon rod 6 and the zinc copper block 7 with one end soaked in the electrolyte 5 are filled in the lower space 3, a diaphragm can be arranged between the carbon rod 6 and the zinc copper block 7 to avoid mutual contact, wherein the carbon rod 6 is used as an anode, the zinc copper block 7 is used as a cathode, after electrolyte electrolysis of the electrolyte 5, the electrolyte is conducted, one end of the anode is led out from the top of the lower space 3, one end of the cathode is led out from the bottom of the lower space 3, and when led out, in order to strengthen the fixity of the carbon rod 6 and the zinc copper block 7, a fixed clamping part 13 is arranged between the carbon rod 6 and the partition block 4, the clamping part 13 is simultaneously clamped at the top and the bottom of the partition block 4, a concave-convex surface 12 with concave-convex fixing is arranged when the copper zinc block 7 is connected with the shell 1, and the fixity and the sealing performance after connection can be better.

The bottom of the shell 1 is provided with a gasket 8 connected with a zinc copper block 7, the upper space 2 is internally provided with a metal cap 9 with the middle part ejecting the shell 1, the bottom of the metal cap 9 is provided with a slot 10 for inserting a carbon rod 6 and tightly adhering to the inner wall to slide, the bottom of the zinc copper block 7 is leveled after the bottom of the shell 1 is fixed, the gasket 8 with a conductive effect directly covers the whole bottom of the shell 1 to be contacted with the zinc copper block 7, the carbon rod 6 above passes through the upper space 2 to be contacted with the inside of the metal cap 9 if the carbon rod 6 finally, cannot be separated, otherwise, cannot conduct electricity, when the metal cap 9 is pressed down, the carbon rod 6 is pushed into the slot 10, the length of the whole lithium battery is reduced, otherwise, the metal cap 9 is ejected to the original length under the elasticity of a spring piece 11, and after the gasket 8 at the bottom of the shell 1 and the metal cap 9 at the top are assembled, the outer layer can also be increased with a heat shrinkage film to protect the outer layer and fix the gasket 8.

The upper space 2 is provided with at least two spring pieces 11 supported at the bottom of the metal cap 9, the length of the protrusion of the metal cap 9 is changed by utilizing the telescopic state of the spring pieces 11, so that the length of the whole lithium battery is changed, the spring pieces 11 are generally in a symmetrical distribution structure, the moving balance of the metal cap 9 can be better, meanwhile, in order to limit and fix the position of the spring pieces 11, the spacer 4 is provided with a clamping groove 15 sinking into the fixed spring pieces 11, on the other hand, the spring pieces 11 are prevented from being contacted with the metal cap 9 to prevent conduction, the bottom of the metal cap 9 is provided with an insulating gasket 14 isolated from the spring pieces 11, the center of the insulating gasket 14 is provided with holes, the holes are provided for carbon rods 6 to be penetrated, and the outer layer of the spring pieces 11 can also be provided with insulating layer protection.

Compared with the prior art, the technical scheme lengthens the ejection length of the metal cap 9 at one end of the positive electrode of the lithium battery, and adjusts the ejection distance of the metal cap 9 through the length of the carbon rod 6 inserted into the metal cap 9, so that the protruding length of one end of the positive electrode of the lithium battery is flexibly changed, the length of the whole lithium battery is changed under the condition that the power is not interrupted in the interior, and different use requirements are met.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in 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.

Claims

1. A columnar lithium battery, includes casing, its characterized in that: the novel electrolyte battery pack is characterized in that a spacer block divided into an upper space and a lower space is arranged in the shell, electrolyte and carbon rods and zinc copper blocks with one ends immersed in the electrolyte are filled in the lower space, a gasket connected with the zinc copper blocks and conducting is arranged at the bottom of the shell, a metal cap with the middle part ejected out of the shell is arranged in the upper space, a slot for inserting the carbon rods and tightly attaching to the inner wall to slide is formed in the bottom of the metal cap, and at least two spring pieces supported at the bottom of the metal cap are arranged in the upper space.

2. The cylindrical lithium battery of claim 1, wherein: the zinc copper block is connected to the bottom of the lower space and is provided with a concave-convex surface fixed with the shell.

3. The cylindrical lithium battery of claim 1, wherein: the other end of the carbon rod crosses the upper space and is connected with the metal cap, and the carbon rod is provided with a clamping part which is fixedly clamped with the spacer block.

4. The cylindrical lithium battery of claim 1, wherein: the bottom of the metal cap is provided with an insulating gasket with a central opening, and the carbon rod is inserted into the central opening of the insulating gasket.

5. The cylindrical lithium battery of claim 1, wherein: the bottom of the upper space is provided with a clamping groove for limiting and fixing the spring piece.