Gas detection system and method for lithium battery pack, electronic equipment and storage medium

The invention provides a gas detection system and method for a lithium battery pack, electronic equipment and a storage medium, and belongs to the technical field of vehicle power battery safety. The system provided by the embodiment of the invention comprises at least one optical fiber, an optical fiber grating sensor, a high-reflectivity lens, a photoelectric demodulator and electronic equipment. The optical fiber is arranged in the lithium battery pack. The fiber grating sensor is disposed on the optical fiber for varying at least one of an intensity or a central wavelength of an optical signal within the optical fiber. And the photoelectric demodulator is used for transmitting an optical signal to one end of the optical fiber and converting the received optical signal reflected by the high-reflectivity lens into an electric signal. The electronic equipment is connected with the photoelectric demodulator and is used for obtaining the concentration change information of the target gas in the lithium battery