Lithium battery pack semi-finished product test system
Lithium battery pack semi-finished product test system scope of application：Voltage range: 0.1V~950V; Current range 0.1A~600A
- Information
Scope of application： | ■ Voltage range: 0.1V~950V; Current range 0.1A~600A |
Communication method： | ■ Supports I2C, SMBuS, HDQ, 1-wire, TTL, Uart, LIN, RS485, CAN, etc |
Chip Solution： | ■ Supports chip solutions such as TI, O2, NFG, Seiko, Renesas, Zhongying, Meixin, and Infineon encryption, as well as multiple MCU+power management solutions |
Functional testing： | ■ Parameter writing, reading, calibration, and comparison (DF, Srec, Hex, Boot) unlocking, locking, flag checking, SBS parameter checking |
■ Open circuit, individual and auxiliary voltage | |
■ Resistors (NTC, IDR), capacitors | |
■ ACIR and DCIR measurements | |
■ Power consumption (MOS turn off current measurement) | |
■ Charging and discharging overcurrent (dynamic pressure difference) | |
■ short circuit | |
■ Loader (supports detection of multiple discharge ports) | |
■ Dielectric Strength |
Lithium battery pack semi-finished product test system is a key link in the production process of lithium battery, which is mainly used to evaluate the performance, safety and consistency of the module (intermediate product without case or BMS installed) composed of battery cells.
System core components
Hardware part
Charge/discharge test equipment: high-precision charge/discharge meter (support constant current, constant voltage, pulse and other modes), detect capacity, internal resistance, cycle life.
Voltage/temperature monitoring module: multi-channel data acquisition (such as NI DAQ or domestic alternative), real-time monitoring of single-core/module voltage and temperature distribution.
Insulation voltage tester: detect module insulation performance (e.g. 500V DC/1000V AC voltage withstand test).
Mechanical Characteristics Test (optional): Pressure sensor detects the fastening force of the module to avoid overpressure or loosening.
Communication interface: CAN/RS485/Ethernet, support interaction with BMS or host computer.
Software part
Test control platform: LabVIEW, Python or C# development, to realize test process automation.
Data analysis system: statistical voltage/temperature standard deviation, capacity decay rate, etc., to identify abnormal battery cells.
Database: store test data (SQL or time series database), support traceability and SPC analysis.
