Self-powered fire and thermal hazard sensors

IMDEA Materials has developed a battery-less fire/thermal hazard sensor based on a fire-retardant triboelectric nanogenerator (see Fig. 1). It can be used to early detect the on-set of thermal-runaway of batteries. When placed in an electric vehicle’s battery pack, this sensor coupled to a microprocessing unit can effectively send an early danger warning message to the driver on the car dashboard.

Fig.1: Self-powered battery thermal-runaway sensor enabled by thermal stimuli-triggered fire-resistant triboelectric nanogenerator for early detection of thermal and fire hazards in electric vehicles.

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