Switch-on delay for intrinsically-safe battery cells
AssigneeRobert Bosch GmbH
InventorPhilipp Hillenbrand
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Abstract
The invention relates to a battery cell unit (10) which comprises a rechargeable electrochemical battery cell (11), a monitoring-and-control unit (12) connected in parallel to said battery cell (11), and a coupling unit in the form of a half bridge (14) comprising a first power semi-conductor (15) and a second power semi-conductor (16). Said battery cell unit (10) is equipped with an integrated circuit (20) that has a noise source (21). A switch-on delay can be achieved by means of said noise source (21). The invention also relates to a switching method for a battery system which comprises a plurality of intrinsically-safe battery cell units (10).
Claims10
A battery cell unit (10) which comprises a rechargeable electrochemical battery cell (11), a monitoring-and-control unit (12) connected in parallel to said battery cell (11) and a coupling unit in the form of a half bridge (14) comprising a first power semi-conductor (15) and a second power semi-conductor (16), wherein the battery cell unit (10) is equipped with an integrated circuit (20) that has a noise source (21), by means of which a switch-on delay can be implemented.
A switching method for a battery system which comprises a plurality of intrinsically-safe battery cell units (10), which in each case have a rechargeable electrochemical battery cell (11), a monitoring-and-control unit (12) connected in parallel to said battery cell (11) and a coupling unit in the form of a half bridge (14) comprising a first power semi-conductor (15) and a second power semi-conductor (16), wherein an individual switch-on delay is implemented for each individual battery cell unit (10) by integrating a noise source into each individual battery cell unit (10).
Dependencies are inferred from the claim text.