Measuring effective stiffness of Li-ion batteries <i>via</i> acoustic signal processing
Wesley Chang, Robert Mohr, Andrew Kim, Abhi Raj, Greg Davies, Kate Denner, Jeung Hun Park, Daniel A. Steingart
Abstract
Accurate signal processing of acoustic waves is utilized to measure the intrinsic material stiffness of a layered cell stack and explore relationships between battery displacement, sound speed and stiffness during high rate cycling.
Topics & Concepts
StiffnessAcousticsStack (abstract data type)SIGNAL (programming language)Signal processingMaterials scienceDisplacement (psychology)Measure (data warehouse)Battery (electricity)Acoustic emissionComputer sciencePhysicsEngineeringElectronic engineeringComposite materialDigital signal processingQuantum mechanicsPower (physics)PsychotherapistDatabaseProgramming languagePsychologyAdvanced Battery Technologies ResearchAdvancements in Battery MaterialsAdvanced Battery Materials and Technologies