Performance parameters Model BE-8401 TriggerMode Overcharging and heating (Optional) Heating Made Channel 2 channel!1 in common used, 1 for spare) Max, Heating Power 3KW, Single channel Power Adjust Mode Changed the heating tube with different capacity + Adjust the input current. voltage Acquisition channel 10 channel,20 channel40 channel (Optional) Temp. Acquisition Channel 10 channel,20 channel40 channel (Optional) Control Mode PLC+PC control (PC and main chamber integrated) Control Host Overall Dimension W700 X D650 X H1360mm Explosion-proof Chamber Dimension W2000xD3000xH2000mnn (Optional) Total Weight 1000KG Test objects The test object is the whole vehicle or the complete vehicle-borne Li-ion battery system or the subsystem of vehicle-borne lithium-ion battery system, including lithium-ion batteries and electrically connected lithium-ion batteries. Test conditions: The test shall be started underthe following conditions. 1 .Testing should be started at temperature higher than 0 "C, relative humidity 15%-90%, and the atmospheric pressure 86-106 kpa. 2.Before testing. The SOC of the test object should be adjusted to 90% or 95% of the normal SOC working range specified by the manufacturer. 3.Before testing, all the test device must berunning normally. 4,The test objects should be modified as little as possible when testing, and the manufacturer should submit a list for all changes. 5.Testing should be at the room temperature orwind speed is not more than 2.5 km/h. According to one or more of the following conditions, the manufacturer shall determine whether thermal runaway happened or not, and shall specify the conditions for determining thermal runaway in the technical documents, 1 .Voltage drop occurred at test objects, 2.The temperature of the monitoring point reaches the maximum operating temperature specified by the manufacturer, 3.The temperature heating rate of the monitoring point. 4.01her parameters set by the manufacturer. Monitoring of voltage and temperature Monitoring the voltage and temperature of the trigger object to determine whether thermal runaway happens. When monitoring the voltage, the original circuit should not be changed, Mon itoring temperature is defined as temperature A (the highest surface temperature of the trigger object in the testing) rThesampling interval of temperature data should be less than Is, the accuracy should be ±2"C. and the diameter of temperature sensor cusp should be less than ] mmr When the needle is triggered, the position of the temperature sensor should be as close as possible to the short circuit point. Cylindrical Cell Thermal runaway trigger object Heating and needling are recommended as candidates forthermal runaway test of lithium ion battery systems. Manufacturers can choose one of them. Heating triggered thermal runaway Use planar or rod-shaped heating devices, and their surfaces should be covered with ceramic, metal or insulating layers, ff the block heating devices has the same size as lithium-ion batteries, the heating device can bereplaced one of the lithium-ion batteriesto make direct contact with the surface of the trigger object; For thin film heating devices, they should always be attached to the surface of the trigger object. Wherever possible, the heating area of the heating device should not bigger than the surface area of the lithium ion battery; The heating surface of the heating device Is directly contacted with the surface of the battery, the position of the heating device shall correspond to the position of the temperature sensor specified in } ,6; Start the heating device immediately after installation, the trigger abject is heated by the maximum power of the heating device, the power oftheheatingdeviceis shown in Table At. 1, butitcan not be mandatory. Stop triggering when thermal runaway happened or the temperature of the 1,6-defined that the temperature of monitoring point reaches 3DCTC, Test Objects Energy E Max. Power of Heating Device Temperature Sensor Needling Point Table A.1 Schematicof temperature sensor placement during needle triggering When heating is triggered, temperature sensors are arranged on the side far from heat conduction. Which means on the opposite side of the heating device (Table, A,2), If it is difficult to install temperature sensors directly, they can be arranged in a position where continuous temperature riseof the trigger object can be detected. • Temperature Monitoring