Rechargeable lithium-ion batteries power most electric vehicles (EVs). Built to last or exceed an EV’s functional lifespan, these energy-dense batteries typically boast an impressive range of 100,000 to 150,000 miles. Although all EV batteries … [Read more...]
How do you measure and manage a thermal load?
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...]
How does EV battery aging affect range and performance?
Many electric vehicles (EVs) are equipped with lithium-ion batteries (Li-ion or LIB) that offer high energy and power density. Although the lifespan of EV batteries typically averages eight to 15 years, factors such as climate, driving habits, and … [Read more...]
EV battery market to grow at CAGR of 19.8% through 2030
The electric vehicle (EV) battery market size was valued at USD 60.1 billion in 2022 and is expected to grow at a CAGR of 19.8% by 2032. According to a new report from market research company Brainy Insights, the market will experience rapid growth … [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...]
How fast can Li-on batteries be charged?
The speed at which a battery can be recharged is measured using the ‘C-rate,’ where ‘C’ is the battery’s capacity in mA or A. At a 1 C rate, a battery can be completely recharged in one hour. The speed of charge primarily depends on the … [Read more...]