CN220358289U

CN220358289U - Lithium battery

Info

Publication number: CN220358289U
Application number: CN202321662272.9U
Authority: CN
Inventors: 刘必军; 胡伟; 朱维佳
Original assignee: Dongguan Lanfang Lithium Industry Technology Co ltd
Current assignee: Dongguan Lanfang Lithium Industry Technology Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2024-01-16
Anticipated expiration: 2033-06-28

Abstract

The utility model relates to the technical field of lithium batteries and discloses a lithium battery. In the utility model, the positive plate of the battery is supported by a plurality of springs, so that the positive plate is always pushed upwards in the telescopic cavity, and the upper end and the lower end of the battery can have supporting force when the battery is installed in the battery installation box of the terminal equipment, so that the battery is not easy to loose and is prevented from falling off, thereby reducing the risk of poor contact or disconnection of the battery caused by vibration, helping to ensure the stable operation of the battery and providing reliable power supply.

Description

Lithium battery

Technical Field

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

Background

A lithium battery is a rechargeable battery that typically consists of one or more batteries with a positive electrode of a lithium compound and a negative electrode of carbon. When the lithium-ion battery device is connected to an external circuit, lithium atoms in the positive electrode material lose electrons through an oxidation reaction to become lithium ions, and move to the negative electrode through the electrolyte; meanwhile, carbon atoms in the anode material absorb electrons through reduction reaction to receive lithium ions; the lithium ions recombine with electrons in the electrolyte to form a reversible lithium compound and release stored electrical energy. When the lithium battery needs to be charged, electric energy of an external power supply is input into the battery, and lithium ions and electrons on the negative electrode are moved back to the positive electrode. The lithium battery can be continuously recycled after being periodically and repeatedly charged and discharged.

Some existing lithium batteries are easy to loosen after being installed, after the lithium batteries are installed in mobile terminal equipment, the mobile terminal can shake and vibrate during movement, poor contact or disconnection is easy to occur, the lithium batteries are unstable in operation, and reliable power supply cannot be provided.

Accordingly, a lithium battery is provided by those skilled in the art to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a lithium battery, wherein a positive plate of the lithium battery is supported by a plurality of springs, so that the positive plate is always ejected upwards in a telescopic cavity, a limiting block limits the positive plate, when the lithium battery is installed into mobile terminal equipment, the lithium battery has a longitudinal supporting force, the lithium battery is not easy to loosen, the lithium battery is prevented from falling, the risk of poor contact or disconnection of the battery caused by vibration can be reduced, the stable operation of the battery is ensured, and reliable power supply is provided.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a lithium battery comprises a shell, wherein a limiting block is fixedly arranged at the top end of the shell, and a shell insulating layer is fixedly arranged on the inner wall of the shell;

the flexible chamber has been seted up to inside the stopper, flexible chamber bottom mounting is provided with the conducting strip, the fixed a plurality of conductive springs that are provided with in conducting strip top, a plurality of the fixed positive plate that is provided with in conductive spring top, the fixed connecting block that is provided with in positive plate top, positive plate and stopper sliding connection.

Through the technical scheme, the conductive spring drives the positive plate to stretch out and draw back in the stretching cavity, the upper end and the lower end of the lithium battery are supported, and the limiting block limits the positive plate to move up and down.

Further, an insulating sheet is fixedly arranged at the bottom end inside the insulating layer of the shell, a current protector is fixedly arranged inside the insulating sheet, a connecting wire is fixedly arranged at the top end of the current protector, a negative electrode sheet is fixedly arranged at the bottom end of the insulating sheet, a connecting groove is formed in the bottom end of the negative electrode sheet, and the current protector is electrically connected with the negative electrode sheet;

through the technical scheme, the current protector protects the battery, and when an external circuit fails, the internal circuit of the battery is automatically disconnected, so that the battery is prevented from being damaged.

Further, an electrolyte layer is fixedly arranged in the middle of the inner wall of the shell insulating layer, and an insulating layer is fixedly arranged in the electrolyte layer;

through the technical scheme, the electrolyte layer prevents electrons in the cathode from being directly transmitted into the anode, and the insulating layer plays a role in isolating electrons when the electrolyte layer fails, so that the electrons are prevented from directly entering the anode to cause explosion of the battery.

Further, the top end of the electrolyte layer is fixedly provided with a positive electrode;

through the technical scheme, lithium ions are stored in the positive electrode, and can penetrate through the electrolyte layer to enter the negative electrode.

Further, the bottom end of the electrolyte layer is fixedly provided with a negative electrode;

through the technical scheme, electrons are stored in the cathode, and the electrons can be isolated by the electrolyte layer.

Further, the connecting wire is electrically connected with the negative electrode;

through the technical scheme, the current protector is connected with the negative electrode through the connecting wire, so that electrons in the negative electrode are transmitted to the outside of the battery through the current protector.

Further, the positive electrode is electrically connected with the conductive sheet;

through the technical scheme, lithium ions in the positive electrode are transmitted to the positive electrode plate through the conductive plate, and the conductive plate is conductive after limiting the bottom positive electrode.

The utility model has the following beneficial effects:

1. according to the lithium battery provided by the utility model, the positive plate of the battery is supported by the springs, so that the positive plate is always pushed upwards in the telescopic cavity, and the upper end and the lower end of the battery can have supporting force when the battery is installed in the battery installation box of the terminal equipment, so that the battery is not easy to loose and is prevented from falling off, the risk of poor contact or disconnection of the battery caused by vibration is reduced, the stable operation of the battery is ensured, and reliable power supply is provided.

2. According to the lithium battery provided by the utility model, the connecting wire is arranged at the bottom end of the negative electrode and is connected with the current protector, internal electrons are transmitted out of the lithium battery through the negative electrode plate at the bottom end of the current protector, and when an external circuit of the lithium battery fails, the current protector can be disconnected with the circuit in time so as to protect the lithium battery and prevent the lithium battery from being burnt out due to the short circuit of the external circuit.

3. According to the lithium battery provided by the utility model, the insulating layer is arranged in the electrolyte layer, so that when the electrolyte layer is damaged, electrons in the negative electrode penetrate into the electrolyte layer to the positive electrode to be mixed with lithium ions to cause short-circuit explosion of the battery, the safety of the lithium battery is improved, and accidents are avoided.

Drawings

Fig. 1 is a front sectional view of a lithium battery according to the present utility model;

fig. 2 is a top isometric view of a lithium battery according to the present utility model;

fig. 3 is a bottom isometric view of a lithium battery according to the present utility model;

fig. 4 is an enlarged view at a of fig. 1.

Legend description:

1. a housing; 2. a limiting block; 3. an insulating sheet; 4. an outer shell insulating layer; 5. a conductive spring; 6. a positive plate; 7. a connecting block; 8. a telescopic chamber; 9. a conductive sheet; 10. a positive electrode; 11. an electrolyte layer; 12. a negative electrode; 13. a connecting groove; 14. a current protector; 15. a connecting wire; 16. a negative electrode sheet; 17. an insulating layer.

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 examples, which are obtained by persons of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present utility model based on the examples herein, and it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the exemplary embodiments according to the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1-4, one embodiment provided by the present utility model is:

a lithium battery comprises a shell 1, wherein a limiting block 2 is fixedly arranged at the top end of the shell 1, and a shell insulating layer 4 is fixedly arranged on the inner wall of the shell 1;

the inside flexible chamber 8 of having offered of stopper 2, flexible chamber 8 bottom mounting is provided with conducting strip 9, and conducting strip 9 top is fixed to be provided with a plurality of conducting springs 5, and a plurality of conducting springs 5 top is fixed to be provided with anodal piece 6, and anodal piece 6 top is fixed to be provided with connecting block 7, anodal piece 6 and stopper 2 sliding connection, and conducting spring drives the positive plate and stretches out and draws back in flexible intracavity, supports the upper and lower end of lithium cell, and the stopper restriction positive plate reciprocates.

The inside bottom fixed of shell insulating layer 4 is provided with insulating piece 3, insulating piece 3 inside fixed current protector 14 that is provided with, current protector 14 top fixed connection line 15 that is provided with, insulating piece 3 bottom fixed is provided with negative pole piece 16, connecting groove 13 has been seted up to negative pole piece 16 bottom, current protector 14 and negative pole piece 16 electric connection, the battery is protected to the current protector, automatic disconnection battery internal circuit when external circuit trouble, prevent the battery damage, shell insulating layer 4 inner wall middle part is fixed to be provided with electrolyte layer 11, electrolyte layer 11 inside is fixed to be provided with insulating layer 17, the electrolyte layer prevents that negative pole internal electron from directly transmitting to the anodal, the insulating layer is when electrolyte layer trouble, play the effect of cutting off the electron, prevent that the electron from directly getting into the anodal and causing the battery explosion, electrolyte layer 11 top fixed is provided with anodal 10, anodal internal storage lithium ion, lithium ion can pierce through electrolyte layer entering negative pole, electrolyte layer 11 bottom fixed is provided with negative pole 12, negative pole internal storage electron, the electron can be isolated by electrolyte layer, connecting line 15 and negative pole 12 electric connection, the connection line makes current protector and negative pole internal electron pass through the battery, it is to transmit the inside to the anodal electrode 9, the effect is to anodal to the anodal electricity limiting plate, the positive electrode is connected to the positive electrode, the electricity is passed through to the inside to the conducting plate is to the conducting plate to the bottom.

Working principle: the positive plate 6 of the lithium battery is supported by a plurality of springs, the positive plate 6 is always pushed upwards in the telescopic cavity 8, the limiting block 2 limits the positive plate 6 to stretch out and draw back, the upper end and the lower end of the battery can both have supporting force when the battery is installed in a battery installation box of terminal equipment, the bottom end of the negative electrode 12 is connected with the current protector 14 through the connecting wire 15, electrons in the negative electrode 12 are output from the negative plate 16 through the current protector 14, the circuit is automatically cut off when the external circuit of the battery fails, damage to the lithium battery is prevented, and when the insulating layer 17 in the electrolyte layer 11 can prevent the electrolyte from being damaged, electrons in the negative electrode 12 are directly mixed with lithium ions to the inside of the positive electrode 10 through the electrolyte layer 11, so that the battery explosion is caused.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A lithium battery comprising a casing (1), characterized in that: a limiting block (2) is fixedly arranged at the top end of the shell (1), and a shell insulating layer (4) is fixedly arranged on the inner wall of the shell (1);

the novel electric power limiting device is characterized in that a telescopic cavity (8) is formed in the limiting block (2), a conductive sheet (9) is fixedly arranged at the bottom end of the telescopic cavity (8), a plurality of conductive springs (5) are fixedly arranged at the top end of the conductive sheet (9), a positive plate (6) is fixedly arranged at the top end of the conductive spring (5), a connecting block (7) is fixedly arranged at the top end of the positive plate (6), and the positive plate (6) is in sliding connection with the limiting block (2).

2. A lithium battery according to claim 1, wherein: inside bottom mounting of shell insulating layer (4) is provided with insulating piece (3), inside fixed current protector (14) that are provided with of insulating piece (3), current protector (14) top is fixed to be provided with connecting wire (15), insulating piece (3) bottom mounting is provided with negative pole piece (16), spread groove (13) have been seted up to negative pole piece (16) bottom, current protector (14) and negative pole piece (16) electric connection.

3. A lithium battery according to claim 1, wherein: electrolyte layer (11) is fixedly arranged in the middle of the inner wall of shell insulating layer (4), and insulating layer (17) is fixedly arranged in electrolyte layer (11).

4. A lithium battery according to claim 3, wherein: the top end of the electrolyte layer (11) is fixedly provided with a positive electrode (10).

5. A lithium battery according to claim 3, wherein: the bottom end of the electrolyte layer (11) is fixedly provided with a negative electrode (12).

6. A lithium battery according to claim 2, wherein: the connecting wire (15) is electrically connected with the negative electrode (12).

7. A lithium battery according to claim 1, wherein: the positive electrode (10) is electrically connected with the conducting strip (9).