Integrated lithium ion battery cycle life acceleration test platform

Abstract

The utility model relates to the technical field of battery life testing devices, and particularly discloses an integrated lithium ion battery cycle life acceleration testing platform, which comprises an integrated cabinet, supporting plates are uniformly and fixedly arranged on the integrated cabinet, charging relay groups are uniformly and fixedly arranged on the integrated cabinet, and the charging relay groups are connected with the integrated cabinet. Discharging relay sets, a charging power source and a storage battery are evenly and fixedly installed on the integrated cabinet, an aluminum oxide ceramic battery box is fixedly installed on the supporting plate, positive columns are evenly and fixedly installed on the aluminum oxide ceramic battery box, and a battery box is fixedly installed on the aluminum oxide ceramic battery box. Cathode springs are uniformly and fixedly mounted on the aluminum oxide ceramic battery box, charging indicating lamps are uniformly and fixedly mounted on the integrated cabinet, and discharging indicating lamps are uniformly and fixedly mounted on the integrated cabinet; and the result of the conventional multiplying power test is deduced by using the high multiplying power test, so that the effect of greatly shortening the test period of the loop test is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of battery life testing devices, and in particular to an integrated lithium-ion battery cycle life accelerated testing platform. Background Technology

[0002] In the research and development and production of lithium-ion batteries, accurate testing of their cycle life is crucial. In practical applications, lithium-ion battery cycle life testing equipment typically requires the following technologies: 1. A precise charge / discharge control module, such as a programmable power supply, capable of charging and discharging the battery according to set current, voltage, and time;

[0003] 2. A precise monitoring system, such as sensors that can monitor battery voltage, current, temperature and other parameters in real time, to achieve comprehensive monitoring of battery status;

[0004] 3. Highly efficient data acquisition and analysis equipment, such as high-performance data acquisition cards and professional analysis software, ensures accurate acquisition and in-depth analysis of test data.

[0005] Existing lithium-ion battery cycle life testing equipment typically tests and evaluates various battery parameters after completing one charge-discharge cycle before proceeding to the next cycle.

[0006] However, during the implementation of the above technical solutions, at least the following technical problems were found: the current testing cycle of lithium-ion battery cycle life is long. If the testing of new products and batch testing of regular products are to be carried out in accordance with the full life cycle test, it will take as long as 3 to 6 months, which seriously slows down the progress of new product development and regular product shipment. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this utility model provides an integrated lithium-ion battery cycle life accelerated testing platform, which solves the technical problem that the current lithium-ion battery cycle life testing cycle is long, and new product testing and regular batch testing, if carried out according to the full life cycle test, takes as long as 3 to 6 months, which seriously slows down the progress of new product development and regular product shipment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an integrated lithium-ion battery cycle life accelerated testing platform, comprising an integrated cabinet, trays uniformly fixedly mounted on the integrated cabinet, charging relay groups uniformly fixedly mounted on the integrated cabinet, discharging relay groups uniformly fixedly mounted on the integrated cabinet, a charging power supply uniformly mounted on the integrated cabinet, and a storage battery uniformly mounted on the integrated cabinet. An alumina ceramic battery box is fixedly mounted on the tray, with positive terminals and negative springs uniformly fixedly mounted on the alumina ceramic battery box. Charging indicator lights and discharging indicator lights are uniformly fixedly mounted on the integrated cabinet. The positive terminals and negative springs are connected to the charging relay groups and discharging relay groups via wires. The charging relay groups are connected to the charging power supply via wires, the discharging relay groups are connected to the storage battery via wires, and the charging indicator lights and discharging indicator lights are connected to the charging relay groups via wires.

[0009] Preferably, the bottom of the alumina ceramic battery box is fixedly equipped with heat dissipation fins.

[0010] Preferably, a filter screen is fixedly installed at the bottom of the tray.

[0011] Preferably, a motor is evenly and fixedly installed inside the tray; the motor is connected to the battery via wires.

[0012] Preferably, fan blades are fixedly mounted on the motor shaft.

[0013] Preferably, the tray has evenly spaced wiring holes.

[0014] Compared with the prior art, this utility model has the following beneficial effects: First, by controlling the charging relay group to close and start the charging power supply through the BMS, the charging power supply can charge the battery at a high rate, and the charging indicator light will illuminate. When the BMS detects that the battery is fully charged, it will disconnect the charging relay group and close the discharge relay group, allowing the battery to discharge at a high rate. At the same time, the discharge indicator light will illuminate and the charging indicator light will turn off. The electricity discharged by the battery will be stored in the storage battery. Multiple batteries can be placed on the alumina ceramic battery box at the same time, enabling this device to charge and discharge multiple batteries at a high rate. Then, the BMS will detect multiple batteries at the same time, and the computer in the BMS will use functions to calculate and infer the results of the conventional rate test using the high rate test, thus greatly shortening the test cycle of the cyclic test.

[0015] Second, due to the excellent thermal conductivity of the alumina ceramic battery box, it can quickly transfer the heat dissipated by the battery to the heat sink fins during charging and discharging. During this process, the motor will start and drive the fan blades to rotate counterclockwise. The fan blades will draw outside air into the space between the tray and the alumina ceramic battery box, and then exhaust it from both ends of the alumina ceramic battery box. In this process, the rapid airflow will carry away the heat from the heat sink fins, achieving a heat dissipation effect on the alumina ceramic battery box and preventing the battery from overheating due to high-rate charging and discharging. This also prevents the battery from affecting the test results due to excessive temperature. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a structural diagram of the integrated cabinet of this utility model;

[0018] Figure 2 This is a structural diagram of the relay group of this utility model;

[0019] Figure 3 This is a structural diagram of the pallet of this utility model;

[0020] Figure 4 This is a structural diagram of the filter screen of this utility model;

[0021] Figure 5 This is a cross-sectional view of the pallet structure of this utility model;

[0022] Figure 6 This utility model Figure 3 Enlarged structural diagram at point A.

[0023] Legend: 1. Integrated cabinet; 2. Tray; 3. Charging relay group; 4. Discharging relay group; 5. Charging power supply; 6. Storage battery; 7. Alumina ceramic battery box; 8. Positive terminal post; 9. Negative terminal spring; 11. Charging indicator light; 12. Discharging indicator light; 13. Heat sink fins; 14. Motor; 15. Wiring hole; 16. Fan blade; 17. Filter. Detailed Implementation

[0024] This application provides an integrated lithium-ion battery cycle life accelerated testing platform, effectively solving the technical problem of long testing cycles for lithium-ion batteries. Testing new products and batches of regular products, if conducted according to the full life cycle, can take 3-6 months, severely slowing down new product development and regular product shipments. The platform uses a BMS to control the closing of the charging relay group to start the charging power supply, enabling high-rate charging of the battery. Simultaneously, the charging indicator light illuminates. When the BMS detects that the battery is fully charged, it will disconnect the charging relay group and close the discharging relay group, allowing the battery to discharge at a high rate. At this time, the discharging indicator light illuminates and the charging indicator light goes out. The discharged electricity is stored in the battery. Multiple batteries can be placed simultaneously on the alumina ceramic battery box, allowing the device to perform high-rate charging and discharging on multiple batteries. The system first charges the battery, then uses a Battery Management System (BMS) to simultaneously test multiple batteries. The BMS computer then uses functions to calculate and infer the results of the conventional rate test using a high-rate test, significantly shortening the test cycle. Because the alumina ceramic battery box has excellent thermal conductivity, it quickly transfers the heat generated by the battery to the heat sink fins during charging and discharging. During this process, a motor starts, driving a fan to rotate counter-clockwise. The fan draws external air between the support plate and the alumina ceramic battery box, then exhausts it from both ends. This rapid airflow carries away heat from the heat sink fins, effectively cooling the alumina ceramic battery box and preventing overheating due to high-rate charging and discharging. This prevents the battery from overheating and affecting the test results. Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in this application embodiment effectively solves the technical problem that the current lithium-ion battery cycle life test cycle is long, and the testing of new products and batches of regular products, if conducted according to the full life cycle test, takes as long as 3-6 months, which seriously slows down the progress of new product development and regular product shipment. The overall idea is as follows:

[0026] To address the problems existing in the prior art, this utility model provides an integrated lithium-ion battery cycle life accelerated testing platform, including an integrated cabinet 1, a tray 2 uniformly fixedly installed on the integrated cabinet 1, a charging relay group 3 uniformly fixedly installed on the integrated cabinet 1, a discharging relay group 4 uniformly fixedly installed on the integrated cabinet 1, a charging power supply 5 fixedly installed on the integrated cabinet 1, a storage battery 6 fixedly installed on the integrated cabinet 1, and an alumina ceramic battery box 7 fixedly installed on the tray 2.

[0027] Positive electrode posts 8 are evenly fixedly installed on the alumina ceramic battery box 7, and negative electrode springs 9 are evenly fixedly installed on the alumina ceramic battery box 7. Charging indicator lights 11 are evenly fixedly installed on the integrated cabinet 1, and discharging indicator lights 12 are evenly fixedly installed on the integrated cabinet 1. The positive electrode posts 8 and negative electrode springs 9 are connected to the charging relay group 3 and the discharging relay group 4 through wires. The charging relay group 3 is connected to the charging power supply 5 through wires, and the discharging relay group 4 is connected to the battery 6 through wires.

[0028] The charging indicator light 11 is connected to the charging relay group 3 via a wire, and the discharging indicator light 12 is connected to the discharging relay group 4 via a wire. The bottom of the alumina ceramic battery box 7 is fixedly installed with heat sink fins 13, and the bottom of the tray 2 is fixedly installed with a filter screen 17. The inside of the tray 2 is evenly fixedly installed with motors 14. The motors 14 are connected to the storage battery 6 via wires, and fan blades 16 are fixedly installed on the shaft of the motors 14. Wiring holes 15 are evenly opened on the tray 2.

[0029] Working principle:

[0030] The first step involves connecting the charging relay group 3, discharging relay group 4, charging power supply 5, and battery 6 to the battery management system (BMS). During use, the battery is placed on the alumina ceramic battery box 7, with the positive terminal 8 in contact with the positive terminal and the negative terminal spring 9 in contact with the negative terminal. The BMS then controls the charging relay group 3 to close and the charging power supply 5 to start charging the battery at a high rate. Simultaneously, the charging indicator light 11 illuminates. When the BMS detects that the battery is fully charged, it will disconnect the charging relay group 3 and close the discharging relay group 4, allowing the battery to discharge at a high rate. Simultaneously, the discharging indicator light 12 illuminates and the charging indicator light 11 turns off. The discharged electricity will be stored in the battery 6. The alumina ceramic battery box 7 can hold multiple batteries simultaneously, enabling the device to perform high-rate charging and discharging on multiple batteries. The BMS then simultaneously monitors multiple batteries, and the computer within the BMS uses functions to calculate and infer the results of conventional rate tests using high-rate testing.

[0031] The second step involves the alumina ceramic battery box 7 having excellent thermal conductivity. During charging and discharging, the alumina ceramic battery box 7 can quickly transfer the heat dissipated by the battery to the heat dissipation fins 13. In this process, the motor 14 will start and drive the fan blades 16 to rotate counterclockwise (the motor 14 is powered by the battery 6). The fan blades 16 will draw external air into the space between the tray 2 and the alumina ceramic battery box 7, and then exhaust it from both ends of the alumina ceramic battery box 7. In this process, the rapid airflow will carry away the heat from the heat dissipation fins 13, achieving a heat dissipation effect on the alumina ceramic battery box 7. When the air enters the tray 2, large impurities in the air will be filtered out by the filter screen 17.

[0032] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An integrated lithium-ion battery cycle life accelerated testing platform, comprising an integrated cabinet (1), characterized in that, A tray (2) is uniformly fixedly installed on the integrated cabinet (1). A charging relay group (3) is uniformly fixedly installed on the integrated cabinet (1). A discharge relay group (4) is uniformly fixedly installed on the integrated cabinet (1). A charging power supply (5) is fixedly installed on the integrated cabinet (1). A storage battery (6) is fixedly installed on the integrated cabinet (1). An alumina ceramic battery box (7) is fixedly installed on the tray (2). A positive terminal post (8) is uniformly fixedly installed on the alumina ceramic battery box (7). A negative terminal spring (9) is uniformly fixedly installed on the alumina ceramic battery box (7). A charging indicator light (11) is uniformly fixedly installed on the integrated cabinet (1). A discharge indicator light (12) is uniformly fixedly installed on the integrated cabinet (1). Among them, the positive terminal post (8) and the negative terminal spring (9) are connected to the charging relay group (3) and the discharging relay group (4) through wires. The charging relay group (3) is connected to the charging power supply (5) through wires. The discharging relay group (4) is connected to the storage battery (6) through wires. The charging indicator light (11) is connected to the charging relay group (3) through wires. The discharging indicator light (12) is connected to the discharging relay group (4) through wires.

2. The integrated lithium-ion battery cycle life accelerated testing platform as described in claim 1, characterized in that, The bottom of the alumina ceramic battery box (7) is fixedly equipped with heat dissipation fins (13).

3. The integrated lithium-ion battery cycle life accelerated testing platform as described in claim 1, characterized in that, A filter screen (17) is fixedly installed at the bottom of the tray (2).

4. The integrated lithium-ion battery cycle life accelerated testing platform as described in claim 1, characterized in that, Motors (14) are uniformly fixedly installed inside the tray (2); The motor (14) is connected to the battery (6) via wires.

5. The integrated lithium-ion battery cycle life accelerated testing platform as described in claim 4, characterized in that, The fan blades (16) are fixedly installed on the shaft of the motor (14).

6. The integrated lithium-ion battery cycle life accelerated testing platform as described in claim 1, characterized in that, The tray (2) is provided with wiring holes (15) evenly spaced.

Images