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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