ACOUSTIC SIGNAL BASED ANALYSIS OF FILMS
Systems, techniques, and computer-implemented processes are provided for acoustic signal based analysis of thin-films, electrode coatings, and other components of batteries. Data analytics on signals obtained by ultrasound excitation of materials is used to analyze electrode coating parameters, analyzing separators, and other battery components. Using the disclosed techniques in battery manufacturing and production can lead to reduction in wastage of damaged/scrapped battery cells and shorten production time.
1 . A method of acoustic signal based analysis, the method comprising:
transmitting at least one acoustic excitation signal into at least a portion of a sample, the sample including a sheet or a film associated with a component of a battery;
receiving acoustic response signal data in response to transmitting the at least one acoustic excitation signal into the portion of the sample;
determining at least one metric associated with the sample based on the acoustic response signal data; and
detecting one or more properties of the sample based on comparing the at least one metric associated with the sample to corresponding one or more reference metrics of a reference sample.