DAMAGE DETECTION & WARNING SYSTEM OF A BATTERY PACK

The present invention relates to an energy storage module (300, 100) for a vehicle (1), comprising: an energy storage enclosure (110) adapted to accommodate at least one energy storage cell (202), the energy storage enclosure comprises at least one enclosure wall (120); at least a first optical sensor (111) comprising at least a first optical fiber (112), at least a first optical receiver (118) and an optical emitter (116), the optical fiber is attached to an inner side (114) of at least a first enclosure wall (120) along a distance of at least a portion of the inner side. The optical reciever is configured to detect an optical signal transmitted through the first optical fiber, wherein the optical sensor is configured to detect an alteration of the optical signal being indicative of a deformation (140). The invention also relates to a corresponding system and method.