Method for diagnosing a mechanical state of an electrochemical energy store

摘要

Method for diagnosing a mechanical state of an electrochemical energy store comprising the following steps: emitting ultrasonic waves by means of at least one ultrasonic transmitter, the ultrasonic transmitter being arranged in a sound-conducting connection with the electrochemical energy store; Receiving a response signal of the emitted ultrasound waves by means of at least one ultrasound receiver, the ultrasound receiver being arranged in a sound-conducting connection with the electrochemical energy store; Comparing the received response signal with predetermined reference signals and determining at least one predetermined reference signal which has the greatest match with the response signal.