Power lithium battery pack EOL testing system solution. The power lithium battery pack EOL test system can simulate the large-capacity charge and discharge process to verify whether the lithium battery pack and BMS cooperate well and discover potential quality defects. It effectively reduces the failure rate of electric vehicle battery packs during use and saves a lot of maintenance costs.

　　As the requirements for cruising range of new energy vehicles continue to increase, the trend of power batteries developing towards high energy density has become more and more obvious. Whether power batteries can ensure high-quality product performance before delivery to customers is inseparable from the role played by the excellent battery detection system. The fully automatic comprehensive testing system for power lithium battery packs is a fully automatic testing solution designed for EOL testing of power battery packs.

　　What is an EOL testing system?

　　The EOL test system is a fully intelligent tester developed to address the current problems of low automation and poor recording and analysis capabilities in battery module and pack testing processes. By integrating various functions such as battery insulation detection, BMS verification, and OCV detection, the entire workflow is fully intelligent and automated to reduce operating personnel and improve test efficiency.

　　EOL tester system features

　　1. The EOL tester can perform insulation and voltage withstand tests on the positive and negative electrodes of the lithium battery pack and the casing, record the insulation resistance and leakage current values of the positive and negative electrodes on the casing during the test process in real time, and transmit them to the host computer through communication. The management system integrates, displays and saves data.

　　2. The EOL tester can test the AC internal resistance of the battery, record the AC internal resistance value in real time during the test, and transmit it to the host computer management system through communication for integrated display and storage of the data.

　　3. The EOL tester provides a controllable DC power supply with an output range of 0-30V and an output current of 5A. The DC power output is set through the host computer management system through communication.

　　4. The EOL tester provides multi-channel CAN communication interfaces and BMS status expansion interfaces, which can conduct two-way communication with the BMS system, simulate and test various functions of the battery pack BMS, and integrate and display data through the host computer management system. and save.

　　Power lithium battery pack EOL test system test range

　　1. BMS function test

　　2. CAN communication detection

　　3. Software version confirmation

　　4. Single cell voltage consistency detection

　　5. Single body temperature detection

　　6. Balance function detection

　　7. Total voltage and total current collection accuracy detection

　　8. Insulation detection function detection

　　Power lithium battery pack EOL testing system solution

　　New energy vehicles are an industry that is supported and developed in the national medium and long-term development plan. The power lithium battery pack system is the core of electric vehicles. It is also the biggest bottleneck in new energy vehicle technology and cost. It is the core link in the industrial chain. Its development will directly affect the industrialization process of electric vehicles, and power battery packs Detection technology also directly affects the quality of power lithium battery packs.

　　The power lithium battery pack EOL test system integrates high-power battery pack charge and discharge unit, BMS function detection unit, battery pack insulation withstand voltage test unit, auxiliary function test unit and other modules into a complete set of electric vehicle lithium battery pack testing system, which can meet the needs of the entire electric vehicle lithium battery pack. The test process is intelligent and automated to reduce operators and improve test efficiency.

　　This system is rich in functions and can realize comprehensive and rapid testing of performance parameters such as electric vehicle battery pack charge and discharge performance, DC internal resistance, SOC adjustment, BMS collection data comparison, insulation withstand voltage, etc. to ensure that the performance parameters of the lithium battery pack meet the National standards and manufacturer requirements.

　　The power lithium battery pack EOL testing system combined with the automated production line can greatly improve testing efficiency. High-tech standard customized equipment can meet higher quality control requirements, effectively reducing the failure rate during the use of electric vehicle battery packs. It also has modular design for easy installation and maintenance; human-machine interface design for simple operation; fully digital control technology for rapid charge and discharge switching and smooth current transition; high-precision voltage and current measurement and control; powerful and user-friendly test software platform , providing a variety of data curves and analysis functions; complete software and hardware protection mechanisms to ensure the safety of lithium battery pack testing and many other advantages.

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