Patent ID: 11009405

Abstract:
A system and method for early-warning and positioning of overheating in a lithium ion battery pack is disclosed, especially for a single battery in the lithium ion battery pack during use. The system Includes a sensor unit, a controller unit, an alarm unit and an auxiliary unit; the sensor unit includes a special flexible thin film sensor; the controller unit includes a single chip microprocessor, an alarm controller, a computer and a display, the single chip microprocessor and the alarm controller being connected to the computer, the computer being connected to the display; the alarm unit includes a LED alarm light and a buzzer; the single chip microprocessor of the controller unit is connected to the flexible film sensor; the auxiliary unit includes a power supply and a constant value resistor; the power supply provides power separately to the controller unit and the alarm unit, and the constant value resistor is directly connected to the power supply.