CN216120490U

CN216120490U - Safe type low temperature lithium ion battery

Info

Publication number: CN216120490U
Application number: CN202122465481.1U
Authority: CN
Inventors: 吴佳霓; 李军; 白哲; 何洁龙
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-03-22
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a safety low-temperature lithium ion battery, which comprises a main shell, wherein an auxiliary shell is fixedly arranged inside the outer surface of one side of the main shell, the four end angles on one side of the main shell are all provided with right-angle grooves, the middle positions of the four end angles of the main shell and the auxiliary shell are provided with side grooves, the four end corners at the other side of the main shell are all provided with right-angle pins, the outer surface at one side of the auxiliary shell is fixedly provided with a negative pin, the outer surface of one side of the main shell is fixedly provided with a negative electrode, the inner part of the auxiliary shell is fixedly provided with a sealing frame, a partition is fixedly arranged in the middle of the inner wall of the sealing frame, positive plates and negative plates are symmetrically arranged on two sides of the partition, the both ends of wall are fixed through the seal groove with the intermediate position of sealed frame inner wall, the equal symmetry in both sides of main casing body is provided with two recesses. The utility model provides the device with the functions of combination and quick installation.

Description

Safe type low temperature lithium ion battery

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a safe low-temperature lithium ion battery.

Background

A lithium ion battery is a secondary battery (rechargeable battery) that mainly works by lithium ion movement between a positive electrode and a negative electrode, and Li + is inserted and extracted back and forth between the two electrodes during charge and discharge: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

However, the conventional lithium ion battery is generally of an integrated structure, is difficult to combine and use a plurality of batteries, is troublesome to operate and is inconvenient to use; therefore, the existing requirements are not met, and a safe low-temperature lithium ion battery is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a safe low-temperature lithium ion battery to solve the problems that the lithium ion battery proposed in the background art is generally of an integrated structure, is difficult to combine a plurality of batteries for use, is troublesome to operate, is inconvenient to use and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: a safety low-temperature lithium ion battery comprises a main shell, wherein an auxiliary shell is fixedly arranged inside the outer surface of one side of the main shell, four end corners of one side of the main shell are provided with right-angle grooves, side grooves are formed in the middle positions of the four end corners of the main shell and the auxiliary shell, four end corners of the other side of the main shell are provided with right-angle pins, a negative pin is fixedly arranged on the outer surface of one side of the auxiliary shell, a negative electrode is fixedly arranged on the outer surface of one side of the main shell, a sealing frame is fixedly arranged inside the auxiliary shell, a partition is fixedly arranged in the middle position of the inner wall of the sealing frame, a positive plate and a negative plate are symmetrically arranged on two sides of the partition, two ends of the partition are fixed with the middle position of the inner wall of the sealing frame through a sealing groove, two grooves are symmetrically formed in two sides of the main shell, and one end of the inner wall of the auxiliary shell is provided with a sealing side groove A, the one end of main casing inner wall is provided with sealed side groove B, the one end of vice casing inner wall is provided with the electric conductor A who is located negative pole round pin one side, the one end of main casing inner wall is provided with the electric conductor B who is located negative pole one side.

Preferably, the two ends of one side of the main shell and the two ends of one side of the auxiliary shell are symmetrically provided with side grooves, and the main shell is fixedly installed through the matching of a right-angle pin and the right-angle groove.

Preferably, every two main casings are fixed through a side fixing plate, and two ends of the side fixing plate are fixedly mounted with the two main casings through side grooves.

Preferably, an electrolyte is filled between two sides of the partition and the inner wall of the sealing frame, and the two sides of the sealing frame and the main shell and the auxiliary shell are sealed and fixed through the matching of the sealing side groove A and the sealing side groove B.

Preferably, the negative electrode plate is fixedly provided with negative electrode materials on two sides, and the positive electrode plate is fixedly provided with positive electrode materials on two sides.

Preferably, the conductor a is attached to the outer surface of the negative electrode plate, and the conductor B is attached to the outer surface of the positive electrode plate.

Preferably, the conductor a and the negative electrode pin and the conductor B and the negative electrode are electrically connected.

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

1. the utility model is characterized in that the outer surface of one end of a sealing frame is jointed with a sealing side groove A, a partition is embedded into a sealing groove in the sealing frame, positive and negative electrode materials are respectively arranged at two sides of the partition, a positive plate and a negative plate are respectively embedded into the positive and negative electrode materials, the negative plate is completely jointed with a conductor A, a secondary shell is jointed with the inner part of a main shell, the conductor B is jointed with the outer surface of the positive plate, the outer surface of the other end of the sealing frame is jointed with the inner wall of the sealing side groove B, the inner part of the sealing frame is in a sealing state, two clamping blocks at two sides of the secondary shell are respectively embedded into the inner parts of grooves, the fixing effect of the main shell and the secondary shell is completed, when the main shell is combined, four right-angle pins are embedded between four right-angle grooves, and simultaneously, one end of a negative electrode is completely jointed with the inner parts of the negative electrode pins, accomplish the electric connection state between two main casings, block the both ends of side fixed plate in two side grooves of two main casings respectively again, form side locking function, through above-mentioned technical scheme, can realize the combination result of use of device, can adjust the quantity of the main casing according to the in service behavior to the combination mode is simple, convenient to use.

Drawings

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

FIG. 2 is a schematic view of the connection structure of the main housing and the sub-housing according to the present invention;

FIG. 3 is a schematic view of the internal structure of the main housing and the sub-housing of the present invention;

fig. 4 is a side view of the internal structure of the main housing and the sub-housing of the present invention.

In the figure: 1. a main housing; 2. a sub-housing; 3. a right-angle groove; 4. a side groove; 5. a right angle pin; 6. a negative pin; 7. a sealing frame; 8. separating; 9. a groove; 10. a negative plate; 11. a positive plate; 12. sealing the side groove A; 13. sealing the side groove B; 14. a conductor A; 15. a conductor B; 16. a sealing groove; 17. a negative electrode; 18. side fixing plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 4, an embodiment of the present invention includes: a safety low-temperature lithium ion battery comprises a main shell 1, an auxiliary shell 2 is fixedly installed inside the outer surface of one side of the main shell 1, four end corners of one side of the main shell 1 are respectively provided with a right-angle groove 3, side grooves 4 are formed in the middle positions of the four end corners of the main shell 1 and the auxiliary shell 2, four end corners of the other side of the main shell 1 are respectively provided with a right-angle pin 5, a negative pin 6 is fixedly installed on the outer surface of one side of the auxiliary shell 2, a negative electrode 17 is fixedly installed on the outer surface of one side of the main shell 1, a sealing frame 7 is fixedly installed inside the auxiliary shell 2, a partition 8 is fixedly installed in the middle position of the inner wall of the sealing frame 7, positive plates 11 and negative plates 10 are symmetrically installed on two sides of the partition 8, two ends of the partition 8 are fixed with the middle position of the inner wall of the sealing frame 7 through a sealing groove 16, two grooves 9 are symmetrically formed in two sides of the main shell 1, one end of the inner wall of the auxiliary shell 2 is provided with a sealing side groove A12, the one end of main casing body 1 inner wall is provided with sealed side limit groove B13, through above-mentioned technical scheme, can realize the sealed effect to sealed frame 7, and the one end of sub-casing 2 inner wall is provided with the electric conductor A14 that is located negative pole round pin 6 one side, through above-mentioned technical scheme, can realize the inside electric power transmission effect of device, and the one end of main casing body 1 inner wall is provided with the electric conductor B15 that is located negative pole 17 one side.

Further, the both ends of

main casing body

1 and 2 one sides of auxiliary housing all the symmetry set up side groove 4, through the cooperation fixed mounting in right angle round pin 5 and right angle groove 3 between per two main casing bodies 1.

Through the technical scheme, the combined installation effect of the device can be realized.

Furthermore, every two main casings 1 are fixed by a side fixing plate 18, and two ends of the side fixing plate 18 are fixedly installed with the two main casings 1 by side grooves 4.

Through the technical scheme, the assembling effect of the main shell 1 can be realized.

Furthermore, electrolyte is filled between both sides of the partition wall 8 and the inner wall of the sealing frame 7, and both sides of the sealing frame 7 and the main casing 1 and the sub-casing 2 are hermetically fixed by the fitting of the sealing side groove a12 and the sealing side groove B13.

Through the technical scheme, the sealing effect on the sealing frame 7 can be realized.

Further, a negative electrode material is fixedly mounted on both sides of the negative electrode plate 10, and a positive electrode material is fixedly mounted on both sides of the positive electrode plate 11.

Through the technical scheme, the internal structure can be electrically conducted and has the power transmission function.

Further, the conductor a14 is attached to the outer surface of the negative electrode plate 10, and the conductor B15 is attached to the outer surface of the positive electrode plate 11.

Through above-mentioned technical scheme, can realize the inside electric power transmission effect of device.

Further, the conductor a14 and the negative pin 6 are electrically connected with the conductor B15 and the negative electrode 17.

Through above-mentioned technical scheme, can realize the electric power circulation function of device.

The working principle is as follows: during assembly, firstly, the outer surface of one end of the sealing frame 7 is attached to the sealing side groove A12, then the partition 8 is embedded into the sealing groove 16 in the sealing frame 7, then positive and negative materials are respectively placed on two sides of the partition 8, meanwhile, the positive plate 11 and the negative plate 10 are respectively embedded into the positive and negative materials, meanwhile, the negative plate 10 is completely attached to the conductor A14, then the auxiliary shell 2 is attached to the inside of the main shell 1, and the conductor B15 is attached to the outer surface of the positive plate 11, and the outer surface of the other end of the sealing frame 7 is attached to the inner wall of the sealing side groove B13, so that the inside of the sealing frame 7 is in a sealing state, meanwhile, two clamping blocks on two sides of the auxiliary shell 2 are respectively embedded into the inside of the groove 9, the fixing effect of the main shell 1 and the auxiliary shell 2 is finished, when the main shell 1 is combined, the four right-angle pins 5 are embedded into the four grooves 3, guarantee simultaneously that the one end of negative pole 17 and the inside of negative pole round pin 6 are laminated completely, accomplish the electric connection state between two main casing bodies 1, block the both ends of side fixed plate 18 respectively in two side grooves 4 of two main casing bodies 1 again, form the side locking function, through above-mentioned technical scheme, can realize the combination result of use of device, can adjust the quantity of the main casing body 1 according to the in service behavior to the combination mode is simple, convenient to use.

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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a safe type low temperature lithium ion battery, includes main casing (1), its characterized in that: the inner fixed mounting of the outer surface of the main shell body (1) one side is provided with an auxiliary shell body (2), four end corners of the main shell body (1) one side are provided with right-angle grooves (3), intermediate positions of the four end corners of the main shell body (1) and the auxiliary shell body (2) are provided with side grooves (4), four end corners of the main shell body (1) other side are provided with right-angle pins (5), an outer fixed mounting of one side of the auxiliary shell body (2) is provided with a negative pin (6), an outer fixed mounting of one side of the main shell body (1) is provided with a negative electrode (17), an inner fixed mounting of the auxiliary shell body (2) is provided with a sealing frame (7), an intermediate position fixed mounting of the inner wall of the sealing frame (7) is provided with a partition (8), two sides of the partition (8) are symmetrically provided with a positive electrode plate (11) and a negative electrode plate (10), two ends of the partition (8) are fixed with the intermediate position of the inner wall of the sealing frame (7) through a sealing groove (16), the equal symmetry in both sides of main casing body (1) is provided with two recess (9), the one end of auxiliary casing (2) inner wall is provided with sealed side limit groove A (12), the one end of main casing body (1) inner wall is provided with sealed side limit groove B (13), the one end of auxiliary casing (2) inner wall is provided with electric conductor A (14) that are located negative pole round pin (6) one side, the one end of main casing body (1) inner wall is provided with electric conductor B (15) that are located negative pole (17) one side.

2. The safety type low-temperature lithium ion battery according to claim 1, characterized in that: the two ends of the main shell body (1) and one side of the auxiliary shell body (2) are symmetrically provided with side grooves (4), and the two side grooves are fixedly installed between the main shell body (1) through the matching of a right-angle pin (5) and a right-angle groove (3).

3. The safety type low-temperature lithium ion battery according to claim 1, characterized in that: every two main casings (1) are fixed through side fixing plates (18), and two ends of each side fixing plate (18) are fixedly installed with the two main casings (1) through side grooves (4).

4. The safety type low-temperature lithium ion battery according to claim 1, characterized in that: electrolyte is filled between the two sides of the partition (8) and the inner wall of the sealing frame (7), and the two sides of the sealing frame (7) are matched, sealed and fixed with the main shell (1) and the auxiliary shell (2) through the sealing side groove A (12) and the sealing side groove B (13).

5. The safety type low-temperature lithium ion battery according to claim 1, characterized in that: and negative electrode materials are fixedly arranged on two sides of the negative plate (10), and positive electrode materials are fixedly arranged on two sides of the positive plate (11).

6. The safety type low-temperature lithium ion battery according to claim 1, characterized in that: the conductor A (14) is attached to the outer surface of the negative electrode plate (10), and the conductor B (15) is attached to the outer surface of the positive electrode plate (11).

7. The safety type low-temperature lithium ion battery according to claim 1, characterized in that: the conductor A (14) is electrically connected with the negative pin (6) and the conductor B (15) is electrically connected with the negative electrode (17).