Overview
The temperature-controlled battery short-circuit tester is a test device specially used to evaluate the safety and performance of batteries under short-circuit conditions. The device simulates the battery short-circuit state, combines the temperature control function, evaluates the battery thermal management ability and safety, and adopts PLC automatic control to meet many international standards.
Features
1. Internal resistance range ≤ 5mΩ, meeting the maximum short-circuit current requirements
2. Adopt industrial-grade DC electromagnetic contactors, all-copper terminals and internal copper plate diversion
3. Wide and thick copper plates improve heat dissipation and reduce equipment loss
4. PLC automatic control system with touch screen and remote control
5. Optional short circuit stop mode: short circuit time or battery surface temperature
6. Loop resistance 80 +/- 20mΩ, withstands peak 1000A short circuit current
Principle
The device simulates the external short circuit of the battery through the PLC automatic control system. After the battery is heated to the specified temperature in the temperature control box, the positive and negative extremes of the battery are connected with wires to form a short circuit circuit. Monitor the change of battery voltage, current and surface temperature, and automatically terminate the test when the preset short circuit time or temperature conditions are reached.
Applications
Lithium battery safety testing, battery performance evaluation, electronic product safety testing, dangerous goods transportation inspection, communication equipment battery testing
Standards
GB 31241-2014、MT/T 1051-2007、SJ/T 11169-1998、YD 1268-2003、GB/T 19521.11-2005、GB/T 18287-2013、SJ/T 11170-1998、UN 38.3、UL 1642、UL 2054、IEC 62133-2012、GB/T 8897.4-2008、YDB 032—2009、YD/T 2344.1—2011、GB/T 21966-2008
Steps
1. Fully charge the battery according to the specified test method
2. Place in a 55 ℃ +/- 5 ℃ environment, wait for 30min after the battery temperature reaches 55 ℃ +/- 5 ℃
3. Connect the positive and negative extremes of the battery with wires to ensure that the external resistance is 80mΩ +/- 20mΩ
4. Monitor battery temperature changes
5. Terminate the test when the battery temperature drops to 20% lower than the peak value or the short-circuit time reaches 24h
Notice
• Ensure that all external resistances are 80mΩ +/- 20mΩ during the test
• Monitor battery temperature changes and terminate the test when the temperature drops to 20% below the peak
The test should be terminated when the short connection time reaches 24h
The test results require that the battery does not catch fire or explode, and the maximum temperature does not exceed 150 ° C.
• The equipment uses AC 220V power supply to ensure stable voltage
• Before the test, check whether the internal resistance of the equipment meets the requirements
