Abstract: Method and system for monitoring the safety of a rechargeable Li-ion battery (LIB). An initial electrical state of the LIB is determined and altered by application or removal of DC electrical stimulus to trigger a time-varying response. The time-varying response of the LIB is measured, and at least one primary response parameter associated with the functional form of the measured response is extracted. At least one secondary response parameter is derived from the primary response parameter. A composite response parameter may be further derived from the primary response parameter and secondary response parameter. A likelihood of a short circuit precursor condition is determined in accordance with the primary response parameter, secondary response parameter and/or composite response parameter. Based on the determined likelihood, an alert of a potential short circuit derived hazard may be provided and/or a corrective measure to mitigate or prevent a short circuit derived hazard may be implemented.

Abstract: Method and system for monitoring the safety of a rechargeable Li-ion battery (LIB). An initial electrical state of the LIB is determined and altered by application or removal of DC electrical stimulus to trigger a time-varying response. The time-varying response of the LIB is measured, and at least one primary response parameter associated with the functional form of the measured response is extracted. At least one secondary response parameter is derived from the primary response parameter. A composite response parameter may be further derived from the primary response parameter and secondary response parameter. A likelihood of a short circuit precursor condition is determined in accordance with the primary response parameter, secondary response parameter and/or composite response parameter. Based on the determined likelihood, an alert of a potential short circuit derived hazard may be provided and/or a corrective measure to mitigate or prevent a short circuit derived hazard may be implemented.