Patent ID: 6049144
Filing Date: 2000-04-11
Classification: H01M,H02H,H02J,Y02E

Abstract:
A rechargeable battery for a portable electric apparatus, comprising:at least one battery cell;a fuse device connected in series with the battery cell;a voltage-controlled active device, which is connected in parallel to the battery cell and which is arranged to assume a substantially non-conductive state and a conductive state, respectively, in response to the voltage at a control input; anda reference voltage device, which is connected to the control input of the active device,wherein the active device is arranged to switch from the non-conductive state to the conductive state, when the voltage across the battery cell deviates, by a predetermined value, from a reference voltage supplied by the reference voltage device, thereby establishing a short circuit across the battery cell and a release of the fuse device, andwherein the voltage-controlled active device, the reference voltage device and the fuse device form an integrated electronic component.