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公开(公告)号:US20200321665A1
公开(公告)日:2020-10-08
申请号:US16817966
申请日:2020-03-13
发明人: Shaurjo BISWAS , Robert Charles MOHR , Andrew Gaheem HSIEH , Barry James VAN TASSELL , Daniel Artemis STEINGART , Jonathan AJO-FRANKLIN
摘要: Systems and methods for battery testing including a holder system. The holder system is designed to couple one or more transducers to a battery under test, wherein the one or more transducers are configured for electrochemical-acoustic signal interrogation (EASI) of the battery. The holder system includes at least one arm to house at least one transducer to be coupled to the battery, and a pressure applying device to apply pressure to the at least one transducer, and to control pressure between the at least one transducer and the battery. The holder system is also configured to determine the pressure between the at least one transducer and the battery and adjust the pressure applied to the at least one transducer based on the determined pressure.
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2.
公开(公告)号:US20200233038A1
公开(公告)日:2020-07-23
申请号:US16675744
申请日:2019-11-06
发明人: Andrew Gaheem HSIEH , Barry James VAN TASSELL , Robert Charles MOHR , Anne WILKINSON , Jonathan AJO-FRANKLIN , Shaurjo BISWAS
IPC分类号: G01R31/392 , H01M10/48 , G01R31/389 , G01R31/3842 , G01N29/34 , G01N29/12 , G01N29/46 , G01R31/385 , B60L3/12 , B60L58/16 , B60L58/12 , B60L3/00
摘要: Systems and methods of determining physical conditions of a battery, such as state of charge (SOC), state of health (SOH), quality of construction, defect, or failure state include driving two or more acoustic signals of two or more amplitudes, each acoustic signal having two or more frequencies, into the battery and detecting vibrations generated in the battery based on the two or more acoustic signals. Nonlinear response characteristics of the battery for the two or more acoustic signals are determined from the detected vibrations. The physical conditions of the battery are determined based at least in part on the nonlinear response characteristics, using nonlinear acoustic resonance spectroscopy (NARS) or nonlinear resonant ultrasound spectroscopy (NRUS).
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