Battery capable of monitoring internal information of battery in real time and battery assembly

Abstract

The utility model belongs to the technical field of lithium ion batteries, and discloses a battery capable of monitoring internal information of the battery in real time and a battery assembly. A core bag in the battery is installed in an aluminum shell, an inner insulating film attached to the inner wall of the aluminum shell is arranged between the core bag and the aluminum shell, and an outer insulating film is attached to the outer wall of the aluminum shell; an opening is formed in the top of the aluminum shell, the battery cell top cover is mounted at the opening in the top of the aluminum shell, the top insulating sheet is mounted at the top of the battery cell top cover, and the information collector is mounted on the battery cell top cover. The battery assembly comprises at least two batteries capable of monitoring internal information of the batteries in real time, and the at least two batteries are connected in series or in parallel. The battery management system is simple in structure, utilizes the information collector to collect internal data of the battery, can realize visualization of internal parameters of the battery, can be connected with a BMS (Battery Management System), adjusts working parameters of the battery according to the internal data, ensures stable operation of the battery, and further effectively prevents safety accidents of the battery.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion batteries, and in particular relates to a battery and a battery assembly capable of monitoring internal information of the battery in real time. Background Art

[0002] With the development of lithium battery technology, lithium batteries have been widely used in energy storage, power, navigation, aviation and other fields. However, currently all lithium batteries basically cannot monitor the internal data of the battery at any time, which leads to safety hazards in many batteries. Therefore, it is necessary to design a battery to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a battery and a battery assembly which can monitor the internal information of the battery in real time, so as to solve the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] On the one hand, the utility model provides a battery that can monitor the internal information of the battery in real time, including a top insulating sheet, an information collector, a battery cell top cover, a core package, an inner insulating film, an aluminum shell and an outer insulating film, the core package is installed in the aluminum shell, an inner insulating film adhered to the inner wall of the aluminum shell is arranged between the core package and the aluminum shell, and the outer insulating film adheres to the outer wall of the aluminum shell; the top of the aluminum shell is open, the battery cell top cover is installed at the opening of the top of the aluminum shell, the top insulating sheet is installed on the top of the battery cell top cover, and the information collector is installed on the battery cell top cover to collect internal data of the battery through the information collector.

[0006] As a preferred technical solution in the present utility model, a signal output port is arranged outside the information collector, and at least one signal collection point is arranged inside the information collector.

[0007] As a preferred technical solution in the utility model, the information collector includes a welding ring, a signal collector body and a fixed ring which are arranged in sequence from top to bottom. An inner groove is provided at the lower end of the welding ring, a limit ring is provided in the middle of the signal collector body, the fixed ring cooperates with the welding ring to clamp the limit ring of the signal collector body in the inner groove, and the fixed ring is welded to the notch of the inner groove; a first avoidance opening corresponding to the signal output port is provided at the upper end of the welding ring, and a second avoidance opening corresponding to the signal collection point is provided in the middle of the fixed ring.

[0008] As a preferred technical solution in the present utility model, the information collector further comprises a sealing ring arranged on the outer periphery of the first avoidance opening, and the sealing ring is pressed tightly between the welding ring and the signal collector body.

[0009] As a preferred technical solution in the utility model, the welding ring and the fixing ring are both made of metal, and the sealing ring is made of fluororubber material.

[0010] As a preferred technical solution in the utility model, a positive pole and a negative pole are arranged on the top cover of the battery cell.

[0011] As a preferred technical solution in the utility model, an explosion-proof valve is also provided on the top cover of the battery cell to improve safety.

[0012] On the other hand, the utility model also discloses a battery assembly, comprising at least two batteries as described in any one of the above items that can monitor the internal information of the battery in real time, and at least two batteries are connected in series or in parallel.

[0013] Beneficial effects: The utility model has a simple structure and uses an information collector to collect internal battery data, which can realize the visualization of internal battery parameters. It can be connected to the BMS system to adjust the battery's operating parameters according to the internal data to ensure the stable operation of the battery, thereby effectively preventing battery safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of part A.

[0017] In the figure: 1-top insulating sheet; 2-information collector; 21-welding ring; 22-signal collector body; 201-signal output port; 202-signal collection point; 23-fixing ring; 24-sealing ring; 3-cell top cover; 301-positive pole; 302-negative pole; 303-explosion-proof valve; 4-core package; 5-inner insulating film; 6-aluminum shell; 7-outer insulating film. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0019] Example:

[0020] like Figure 1-Figure 3 As shown, the present embodiment provides a battery capable of monitoring internal information of the battery in real time, comprising a top insulating sheet 1, an information collector 2, a cell top cover 3, a core package 4, an inner insulating film 5, an aluminum shell 6 and an outer insulating film 7, wherein the core package 4 is installed in the aluminum shell 6, and an inner insulating film 5 adhered to the inner wall of the aluminum shell 6 is provided between the core package 4 and the aluminum shell 6, and the outer insulating film 7 adheres to the outer wall of the aluminum shell 6 to ensure insulation between the inside and the outside to avoid accidents such as electric shock; the top of the aluminum shell 6 is open, the cell top cover 3 is installed at the opening at the top of the aluminum shell 6, and the top insulating sheet 1 is installed on the top of the cell top cover 3 to avoid accidents such as electric shock. Of course, according to the structure of the cell top cover 3 and the information collector 2, an avoidance port will be provided on the top insulating sheet 1 to ensure the normal use of the battery, and the information collector 2 is installed on the cell top cover 3 to collect internal data of the battery, such as pressure information and temperature information, through the information collector 2 to ensure the stable operation of the battery, thereby effectively preventing safety accidents of the battery.

[0021] It should be noted that, in practice, there are generally at least two core packages 4 installed in the aluminum shell 6, which can be installed according to actual conditions.

[0022] The utility model has a simple structure and utilizes the information collector 2 to collect internal data of the battery, so as to realize the visualization of the internal parameters of the battery, and can be connected with the BMS system to adjust the working parameters of the battery according to the internal data to ensure the stable operation of the battery, thereby effectively preventing safety accidents of the battery.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that the information collector 2 is provided with a signal output port 201 on the outside, which can be connected to the BMS system, and the information collector 2 is provided with at least one signal collection point 202 inside, which can collect data such as the internal pressure and temperature of the battery.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the information collector 2 includes a welding ring 21, a signal collector body 22 and a fixing ring 23 arranged in sequence from top to bottom, an inner groove is provided at the lower end of the welding ring 21, and a limit ring is provided in the middle of the signal collector body 22, so that the signal collector body 22 forms a structure in which the middle diameter is larger than the diameter at both ends, the fixing ring 23 cooperates with the welding ring 21 to clamp the limit ring of the signal collector body 22 in the inner groove, and the fixing ring 23 is welded to the notch of the inner groove, thereby fixing the signal collector body 22; the upper end of the welding ring 21 is provided with a first avoidance opening corresponding to the signal output port 201, and the middle of the fixing ring 23 is provided with a second avoidance opening corresponding to the signal collection point 202, which does not affect the collection or transmission of information.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the information collector 2 also includes a sealing ring 24 arranged on the outer periphery of the first avoidance opening, and the sealing ring 24 is pressed between the welding ring 21 and the signal collector body 22, so as to enhance the sealing and prevent water from entering the interior of the information collector 2.

[0026] As a preferred implementation scheme in this embodiment, it needs to be further explained that the welding ring 21 and the fixing ring 23 are both made of metal, and the sealing ring 24 is made of fluororubber material. Metal has good stability, and fluororubber is corrosion-resistant and high-temperature-resistant, which can ensure the stability and service life of the equipment.

[0027] As a preferred implementation scheme in this embodiment, it needs to be further explained that the battery cell top cover 3 is provided with a positive electrode column 301 and a negative electrode column 302, which are connected to the tabs of the core package 4 to ensure smooth external power supply.

[0028] As a preferred implementation scheme in this embodiment, it needs to be further explained that an explosion-proof valve 303 is also provided on the battery cell top cover 3 to ensure the normal use of the equipment.

[0029] On the other hand, the utility model also discloses a battery assembly, comprising at least two batteries as described in any one of the above items that can monitor the internal information of the battery in real time, and at least two batteries are connected in series or in parallel to ensure the safe use of the battery assembly.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery capable of monitoring internal information of the battery in real time, characterized in that: The invention comprises a top insulating sheet (1), an information collector (2), a battery cell top cover (3), a core package (4), an inner insulating film (5), an aluminum shell (6) and an outer insulating film (7); the core package (4) is installed in the aluminum shell (6); an inner insulating film (5) is provided between the core package (4) and the aluminum shell (6) and is attached to the inner wall of the aluminum shell (6); the outer insulating film (7) is attached to the outer wall of the aluminum shell (6); the aluminum shell (6) has an opening at the top; the battery cell top cover (3) is installed at the opening at the top of the aluminum shell (6); the top insulating sheet (1) is installed at the top of the battery cell top cover (3); the information collector (2) is installed on the battery cell top cover (3) so as to collect internal data of the battery through the information collector (2).

2. A battery capable of real-time monitoring of internal information of the battery according to claim 1, characterized in that: The information collector (2) is provided with a signal output port (201) on the outside, and at least one signal collection point (202) on the inside.

3. A battery capable of real-time monitoring of internal information of the battery according to claim 2, characterized in that: The information collector (2) comprises a welding ring (21), a signal collector body (22) and a fixing ring (23) which are arranged in sequence from top to bottom; an inner groove is provided at the lower end of the welding ring (21); a limit ring is provided in the middle of the signal collector body (22); the fixing ring (23) cooperates with the welding ring (21) to clamp the limit ring of the signal collector body (22) in the inner groove; the fixing ring (23) is welded to the notch of the inner groove; a first avoidance opening corresponding to the signal output port (201) is provided at the upper end of the welding ring (21); and a second avoidance opening corresponding to the signal collection point (202) is provided in the middle of the fixing ring (23).

4. A battery capable of real-time monitoring of internal information of the battery according to claim 3, characterized in that: The information collector (2) further comprises a sealing ring (24) arranged on the outer periphery of the first avoidance opening, and the sealing ring (24) is pressed tightly between the welding ring (21) and the signal collector body (22).

5. A battery capable of real-time monitoring of internal information of the battery according to claim 4, characterized in that: The welding ring (21) and the fixing ring (23) are both made of metal, and the sealing ring (24) is made of fluororubber material.

6. A battery capable of real-time monitoring of internal information of the battery according to any one of claims 1 to 5, characterized in that: The battery cell top cover (3) is provided with a positive pole column (301) and a negative pole column (302).

7. A battery capable of real-time monitoring of internal information of the battery according to claim 6, characterized in that: An explosion-proof valve (303) is also provided on the battery cell top cover (3).

8. A battery assembly, characterized in that: The invention comprises at least two batteries capable of monitoring internal information of the battery in real time as claimed in any one of claims 1 to 5, wherein the at least two batteries are connected in series or in parallel.

Images