Apparatuses and methods for electrochemical impedance spectroscopy in a reconfigurable battery
AssigneeAnalog Devices International Unlimited Company
InventorUwe BROECKELMANN
Life of this patent
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Abstract
Aspects of the present disclosure include a reconfigurable battery system having one or more battery clusters each having one or more switching devices and one or more battery cells, and an integrated controller configured to: transmit, from the integrated controller to the one or more switching devices associated with the one or more battery cells, one or more signals to generate a time-varying output current having a waveform, measure a time-varying voltage in response to the time-varying output current being applied to a load, and calculate an impedance based on the time-varying output current and the time-varying voltage at the frequency.
Claims20
A reconfigurable battery system, comprising:
- one or more battery clusters each having one or more switching devices and one or more battery cells;
- and
- an integrated controller configured to:
- transmit, from the integrated controller to the one or more switching devices associated with the one or more battery cells, one or more signals to generate a time-varying output current having a waveform;
- measure a time-varying voltage in response to the time-varying output current being applied to a load;
- and
- calculate an impedance based on the time-varying output current and the time-varying voltage at the frequency.
A method of operating a reconfigurable battery system, comprising:
- transmitting, from an integrated controller to one or more switching devices associated with one or more battery cells of a battery cluster of one or more battery clusters, one or more signals to generate a time-varying output current having a waveform;
- providing the time-varying output current having the waveform from the one or more battery cells to a load;
- measuring a time-varying voltage in response to the time-varying output current being applied to the load;
- and
- calculating an impedance based on the time-varying output current and the time-varying voltage at the frequency.
Dependencies are inferred from the claim text.