Thermal runaway detection circuit and method

A thermal runaway detection circuit, characterized by comprising:

• a sensing module including a terminating resistor, wherein the terminating resistor is connected to a temperature sensitive cable, and wherein a distance between at least a portion of the temperature sensitive cable and a cell of a battery pack is less than a temperature sensitive distance threshold;
• a detection module including a first voltage dividing resistor set and a second voltage dividing resistor set, wherein the first voltage dividing resistor set, the terminating resistor, and the second voltage dividing resistor set are connected in series via the temperature sensitive cable, and wherein one end of the first voltage dividing resistor set is connected to a first power supply terminal, and one end of the second voltage dividing resistor set is connected to ground;
• and
• a processing module connected to the detection module, wherein the processing module is configured to obtain thermal runaway detection data, and determine whether thermal runaway occurs in the battery pack based on the thermal runaway detection data,
• wherein the thermal runaway detection data includes first sampled data collected from a first sampling point and second sampled data collected from a second sampling point, the first sampling point is disposed between the other end of the first voltage dividing resistor set and the terminating resistor, and the second sampling point is disposed between the other end of the second voltage dividing resistor set and the terminating resistor.