The High Voltage system associated with a group of cells strung together in series and/or parallel.
The electrical design of the battery pack is associated with fundamental electrical elements. These elements are: Busbars, Contactors, Fuses, pre-charge resistors, current sensors, HV (High Voltage) and LV (Low Voltage) Connectors, and wiring harnesses.
This will cover:
- Cell electrical interconnects
- Welded, bolted, sprung and all forms of cell electrical connections
- Module to module electrical power connections
- Battery pack electrical connections
- Distribution board
- External connectors
For all of these components we need to consider:
- Electrical resistance
- Electrical isolation
- Electrical rating
- Connection electrical resistance
- Self heating
- Heat transmission
- Creepage and Clearance
- Mechanical integrity
- Failure modes
- Service and maintenance
- Manufacturing requirements
- Assembly requirements
- Recycling