MT/T1051 short circuit

The experiment should be conducted at (20 ℃ 5) ℃ and (55 ℃ 5) Conducted at an ambient temperature of ℃. Place the battery with a thermocouple connected (with the thermocouple contact fixed at the center of the battery surface) in a fume hood and a high-temperature box respectively (for 55 ℃ The battery for the 5 ℃ short-circuit test should first be placed in a high-temperature chamber at 55 ℃; Maintain at 5 ℃ for 1.5 hours to 2 hours, short-circuit the positive and negative poles, and ensure that the total resistance of the circuit is not greater than 100m Ω. The test is terminated when the battery load voltage is less than 0.1V and the surface temperature of the battery returns to no more than 10 ℃ above the ambient temperature.

1requirements

The experiment should be conducted separately（20℃±5）℃ and（55℃±5）Conducted at an ambient temperature of ℃. Will be connectedthermocoupleThe battery（hot

The contact of the thermocouple is fixed at the center of the large surface of the battery）Place them separately in the fume hood and high-temperature box（conduct55℃±5℃of

The battery for short-circuit test should be first placed in a high-temperature chamber55℃±5℃Keep it down1.5h～2h）Short circuit its positive and negative poles, total power of the circuit

Resistance not greater than100mΩ. Until the battery load voltage is less than0.1VAnd the surface temperature of the battery is restored to no higher than the ambient temperature

10℃At that time, end the experiment. Each temperature test3Only battery. Internally installed recoverable temperature or overcurrent protection devices

The pool can be equipped with a resistance value that will not cause the device to short circuit the positive and negative terminals of the battery under the largest load.

2、 Purpose of the experiment:The remote control high current short-circuit device is designed based on various battery short-circuit test standards. According to the standard requirements, the short-circuit device must meet an internal resistance range far less than 100m Ω in order to obtain the maximum short-circuit current required for the test.

3、 Compliant with standards:GB/T 2900.11-1988TheMT/T 1051-2007TheSJ/T 11169-1998TheYD 1268-2003

GB/T 19521.11-2005TheGB/T 18287-2000TheSJ/T 11170-1998TheUN38.3TheUL 1642TheUL2054

QC/T 743-2006TheQC/T 744-2006TheQB/T 2502-2000TheGB/T 8897.4-2002TheYD/B 032—2009The

QB/T 2947.3-2008

four、Technical Specifications: