CN218242150U

CN218242150U - Lithium ion battery with cycle characteristic

Info

Publication number: CN218242150U
Application number: CN202221448864.6U
Authority: CN
Inventors: 陈小壮
Original assignee: Guangdong Heju New Energy Technology Co ltd
Current assignee: Guangdong Heju New Energy Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2023-01-06
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a lithium ion battery with circulation characteristic, including the lithium ion box, cathode material and aluminum box shell, the inside of lithium ion box is provided with cathode material, one side that cathode material was kept away from to the lithium ion box is provided with cathode material, and be provided with the isolation layer between cathode material and the cathode material, the outer wall of lithium ion box is provided with the heat insulation layer, and the outer wall of heat insulation layer pastes through glue has the buffer layer, the outer wall of buffer layer is provided with fixed framework, and fixed framework's outer wall is provided with the aluminum box shell, the explosion-proof layer has been seted up to the inside of aluminum box shell, and the inside buffering subassembly that is used for the absorbing that is provided with of explosion-proof layer, the top and the bottom on explosion-proof layer all are provided with the spring, and the outer wall of spring is provided with the seal block, the device is fixed framework internal gas pressure to the seal cover and is located the extrusion, make the seal block drive guide arm to one side extrusion spring, and the internal gas pressure of fixed framework carries out the pressure release, the risk of bursting has been reduced.

Description

Lithium ion battery with cycle characteristic

Technical Field

The utility model relates to a lithium ion battery technical field specifically is a lithium ion battery with cyclic characteristic.

Background

Lithium batteries are classified into lithium batteries and lithium ion batteries, and lithium ion batteries are commonly called as lithium batteries for mobile phones and notebook computers. The lithium ion battery takes a carbon material as a negative electrode and a lithium-containing compound as a positive electrode, no metal lithium exists, and only lithium ions exist, so that the lithium ion battery is formed. The real lithium battery is rarely applied to daily electronic products due to high danger.

However, the conventional lithium ion battery having cycle characteristics has the following problems in use: conventional lithium ion batteries are very active when in use, and therefore they are very hot. The heat causes the cell to expel the organic solvent used as the electrolyte and the heat (or nearby sparks) can ignite it, an explosive condition is easily created, and the inside is subject to shock during use, thereby affecting the normal circulation of the internal plating solution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium ion battery with cyclic characteristic to propose unable explosion-proof and shockproof heat-resisting relevant problem in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium ion battery with cyclic characteristic, includes lithium ion box, cathode material and aluminium box shell, the inside of lithium ion box is provided with cathode material, one side that cathode material was kept away from to the lithium ion box is provided with cathode material, and is provided with the isolation layer between cathode material and the cathode material, the outer wall of lithium ion box is provided with the heat insulation layer, and the outer wall of heat insulation layer pastes through glue has the buffer layer, the outer wall of buffer layer is provided with fixed framework, and fixed framework's outer wall is provided with the aluminium box shell, the explosion-proof layer has been seted up to the inside of aluminium box shell, and the inside buffering subassembly that is used for the absorbing that is provided with of explosion-proof layer, the top and the bottom on explosion-proof layer all are provided with the spring, and the outer wall of spring is provided with the seal block, the seal block outer wall is provided with the guide arm that runs through fixed framework, a plurality of slots have been seted up to the lateral wall of fixed framework.

Preferably, the buffer assembly comprises an extrusion block and an arc-shaped elastic plate, the extrusion block attached to the outer wall of the aluminum box shell is arranged inside the explosion-proof layer, and the arc-shaped elastic plate connected with the outer wall of the fixed frame body is arranged on one side of the extrusion block.

Preferably, the material of the heat insulation layer is aerogel with fire and water resistance.

Preferably, the buffer layer is made of polystyrene foam.

Preferably, the outer wall of the sealing block is provided with a sealing sleeve, and the outer wall of the sealing sleeve is matched with the inner wall of the slot.

Compared with the prior art, the utility model provides a lithium ion battery with cyclic characteristic possesses following beneficial effect:

1. the utility model discloses a spring drives sealed piece and extrudees, and when fixed framework department appears damaging, and pressure is too big and when atmospheric pressure was too big appear, then fixed internal atmospheric pressure of frame extrudees seal cover department for sealed piece drives the guide arm and extrudees the spring to one side, and fixed framework internal gas pressure carries out the pressure release, has reduced the risk that bursts.

2. The utility model discloses an aerogel has good heat preservation and heat insulation properties, and this structure is convenient for carry out adiabatic isolation to lithium ion box department, has reduced the explosion risk.

Drawings

Fig. 1 is a front sectional view of the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 of the present invention;

fig. 3 is a schematic perspective view of the present invention.

In the figure: 1. a lithium ion box body; 2. a negative electrode material; 3. a positive electrode material; 4. an isolation layer; 5. a heat insulating layer; 6. a buffer layer; 7. fixing the frame body; 8. an explosion-proof layer; 9. an aluminum box housing; 10. an arc-shaped elastic plate; 11. extruding the block; 12. inserting slots; 13. a sealing block; 14. a spring; 15. a guide bar; 16. and (5) sealing the sleeve.

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.

Embodiment 1, as shown in fig. 1-2, the utility model provides a technical solution: the utility model provides a lithium ion battery with cyclic characteristic, including lithium ion box 1, cathode material 3 and aluminium box shell 9, the inside of lithium ion box 1 is provided with cathode material 2, one side that cathode material 2 was kept away from to lithium ion box 1 is provided with cathode material 3, and be provided with isolation layer 4 between cathode material 3 and the cathode material 2, the outer wall of lithium ion box 1 is provided with heat insulation layer 5, and the outer wall of heat insulation layer 5 is pasted through glue has buffer layer 6, the outer wall of buffer layer 6 is provided with fixed framework 7 heat insulation layer 5 material for having fireproof waterproof aerogel, the material that buffer layer 6 adopted is polystyrene foam, all have good heat preservation and thermal insulation performance through aerogel and polystyrene foam, and then be convenient for keep warm to lithium ion box 1 department, avoid because the external temperature is low excessively, and influence the recycling of its inside plating solution, this structure is convenient for carry out adiabatic isolation to lithium ion box 1 department, and be convenient for increase the circulation effect of the plating solution in lithium ion box 1.

Embodiment 2, as shown in fig. 1-3, the utility model provides a technical solution: the utility model provides a lithium ion battery with circulation characteristic, outer wall including fixed framework 7 is provided with aluminium box shell 9, explosion-proof layer 8 has been seted up to the inside of aluminium box shell 9, and explosion-proof layer 8 inside is provided with and is used for absorbing buffer assembly, explosion-proof layer 8's top and bottom all are provided with spring 14, and spring 14's outer wall is provided with sealing block 13, sealing block 13 outer wall is provided with guide arm 15 that runs through fixed framework 7, a plurality of slots 12 have been seted up to fixed framework 7's lateral wall, buffer assembly includes extrusion block 11 and arc elastic plate 10, explosion-proof layer 8 inside is provided with the extrusion block 11 with the laminating of aluminium box shell 9 outer wall mutually, and extrusion block 11 one side is provided with the arc elastic plate 10 that is connected with fixed framework 7 outer wall, sealing block 13's outer wall is provided with seal cover 16, and seal cover 16 outer wall and slot 12 inner wall phase-match, receive external force through aluminium box shell 9 and strike, thereby extrusion block 11 extrudees arc elastic plate 10 department, spring 14 drives sealing block 13 and extrudes, and the damage appears in fixed framework 7 department, and the pressure reduction extrusion block 15 that the fixed framework 15 drives.

The working principle is as follows: firstly, when a lithium battery is charged, the battery is charged, lithium ions in a carbon material forming an anode material 3 move to a cathode material 2 through an isolation layer 4, so that discharge current passes through the lithium battery, sometimes the lithium battery explodes and fires occasionally, and the lithium battery explodes outwards through a fixed frame body 7, is extruded through an arc-shaped elastic plate 10, and meanwhile, a sealing block 13 drives a sealing sleeve 16 to move outwards to extrude a spring 14, so that gas in the fixed frame body 7 is conveniently released, the explosion condition caused by overlarge pressure is avoided, and the vibration of the fixed frame body 7 is conveniently reduced under the self elastic force action of the arc-shaped elastic plate 10 and the spring 14, so that the damping effect is achieved;

and be provided with heat insulation layer 5 and buffer layer 6 through fixed frame 7 inboard, can be better through aerogel and polystyrene foam, be convenient for keep warm to 1 department of lithium ion box, avoid because the external temperature is low excessively, and influence the recycling of its inside plating solution, this structure is convenient for carry out adiabatic isolation to 1 department of lithium ion box, and is convenient for increase the circulation effect of plating solution in the lithium ion box 1.

It should be finally noted that the above contents are only used to illustrate the technical solutions of the present invention, but not to limit the protection scope of the present invention, and the simple modification or equivalent replacement performed by the technical solutions of the present invention by those skilled in the art does not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A lithium ion battery with cycle characteristics, comprising a lithium ion box body (1), a positive electrode material (3) and an aluminum box shell (9), characterized in that: the utility model discloses a lithium ion battery box, including lithium ion box, isolation layer (4), lithium ion box (1), buffer layer (8), explosion-proof layer (8), and explosion-proof layer (8) inside are provided with and are used for absorbing buffering subassembly, the top and the bottom of explosion-proof layer (8) all are provided with spring (14), and the outer wall of spring (14) is provided with sealing block (13), sealing block (13) outer wall is provided with guide arm (15) that runs through fixed frame (7), a plurality of slots (12) have been seted up to the lateral wall of fixed frame (7), one side that negative electrode material (2) was kept away from in lithium ion box (1) is provided with cathode material (3), and is provided with between cathode material (3) and cathode material (2) isolation layer (4), the outer wall of lithium ion box (1) is provided with heat insulation layer (5), and the outer wall of heat insulation layer (5) pastes through glue has buffer layer (6), the outer wall of buffer layer (6) is provided with fixed frame (7), and the outer wall of fixed frame (7) is provided with sealing block (13), sealing block (13) outer wall is provided with guide arm (15) that are used for absorbing buffering subassembly, fixed frame (7).

2. The lithium ion battery with cycle characteristics as claimed in claim 1, wherein: the buffer assembly comprises an extrusion block (11) and an arc-shaped elastic plate (10), the extrusion block (11) which is attached to the outer wall of the aluminum box shell (9) is arranged inside the anti-explosion layer (8), and the arc-shaped elastic plate (10) connected with the outer wall of the fixed frame body (7) is arranged on one side of the extrusion block (11).

3. The lithium ion battery with cycle characteristics as claimed in claim 1, wherein: and the material of the heat insulation layer (5) is aerogel with fire and water resistance.

4. The lithium ion battery with cycle characteristics as claimed in claim 1, wherein: the buffer layer (6) is made of polystyrene foam.

5. The lithium ion battery with cycle characteristics as claimed in claim 1, wherein: the outer wall of the sealing block (13) is provided with a sealing sleeve (16), and the outer wall of the sealing sleeve (16) is matched with the inner wall of the slot (12).