Battery electrolyte leakage detection system and battery electrolyte leakage detection method

The invention provides an electrolyte leakage detection system for a battery and an electrolyte leakage detection method for a battery, which can accurately and efficiently detect an electrolyte even under the condition that a plurality of batteries are mixed. The system for detecting the electrolyte leakage of the battery is characterized by being provided with: a first irradiation means for irradiating a first surface of the battery with first light for discriminating battery data relating to the type of the battery; a first acquisition means for acquiring image data obtained by capturing an image of a first surface of the battery irradiated with the first light; a battery data discrimination unit that discriminates the battery data from the image data; a second irradiation means for irradiating, on the basis of battery data, a second light for detecting an electrolyte solution adhering to the battery, on the first surface of the battery; a second acquisition means for acquiring spectral image data obtained