Patent ID: 9692035
Date: 2017-06-27
CPC Classifications: B60L,H01M,Y02E,Y02T

Claim:
1. A battery system comprising: a battery including a plurality of battery cells and two battery poles, the plurality of battery cells being connected in series between the two battery poles; a battery housing configured to house the plurality of battery cells of the battery; at least one protection device connected between battery cells of the plurality of battery cells such that, after the at least one protection device is tripped, the plurality of battery cells are electrically separated into at least two series connected groups, each group having a combined voltage that does not exceed a limit voltage; a switching device connected between the two battery poles of the battery and configured to close to short-circuit the battery and trip the at least one protection device in response to an interference signal; and an insulation monitor connected between the battery and the battery housing, the insulation monitor configured to detect an insulation fault between the battery and the battery housing and operate the switching device to close by providing the interference signal to the switching device in response to detecting the insulation fault.