Electric vehicles (EVs) experience thermal loads from heat generated by the battery pack, motor, power electronics, brakes, and the cabin heating, ventilation, and air conditioning (HVAC) system. These thermal loads must be managed to varying degrees … [Read more...]
What is a thermal load in EVs?
Thermal loads are heat sources. The most significant thermal loads in EVs are the major powertrain components, including the battery pack, motor, power electronics, and charger. Additional thermal loads include the cabin heating, ventilation, and … [Read more...]
How does a wireless BMS work?
The life of lithium-ion batteries depends on how each cell is managed throughout its life. This is the job of the battery management system (BMS). If a cell is discharged to an extreme end of its state of charge, especially below 2.5V, its life … [Read more...]
What are the fundamentals of testing cycling battery cells?
The cycle life of a battery is defined as the number of charge-discharge cycles a battery can perform before its performance has degraded beyond its useful level. This is a somewhat imprecise definition, dependent on the amount of degradation that is … [Read more...]