Global commercial EV sales are expected to roughly double this year over 2023, while passenger EV sales could increase by 21%. In the US, BloombergNEF anticipates that passenger EV sales could account for 13% of new-car purchases and reach just under … [Read more...]
What techniques are available for mitigating thermal runaway in batteries?
Thermal runaway happens when a lithium-ion (Li-ion) cell, or a small region within a cell, reaches a critical temperature where the materials start to undergo decomposition reactions. These reactions generate significant additional heat. The … [Read more...]
How can reinforcement learning be used for real-time battery power control in EVs?
Real-time control of battery power is a dynamic process where input variables -- such as battery health, state of health (SOC), and other specifications -- vary continuously. This article explains how the reinforcement learning (RL) algorithm can be … [Read more...]
What is the EV battery supply chain?
The electric vehicle (EV) battery supply chain is vast and complex, spanning mining and processing to assembly and end-of-life management. This article reviews the supply chain’s four primary stages: upstream, midstream, downstream, and recycling or … [Read more...]
How liquefied gas electrolytes can address the Achilles’ heel of Li-ion batteries
In 2023, 13.7 million passenger electric vehicles (EVs) were sold worldwide. While sales are projected to reach 16.7 million in 2024, a slowdown in annual growth is on the horizon. Driving this trend are consumer concerns over the high cost, safety, … [Read more...]
Understanding battery overheating in EVs
The battery pack in an electric vehicle (EV) can produce a lot of heat, especially during rapid charging. Ideally, batteries should be operated at temperatures below 35° C. When consistently operated at higher temperatures, degradation of the … [Read more...]
What software tools are available for EV battery modeling at the system level?
Several possible definitions of “system” exist for electric vehicle (EV) battery modeling. They range from the battery’s interactions with the complete EV drivetrain to thermal modeling of the battery pack, battery cell development and integration … [Read more...]
How do EV battery cell charge and discharge rates compare?
The charge and discharge rates of electric vehicle (EV) battery cells affect the vehicle's range and performance. Measured in C-rates, these crucial variables quantify how quickly batteries charge or discharge relative to their maximum … [Read more...]
What does the “Internet-of-Batteries” mean, and what are the advantages for EVs?
The Internet-of-Batteries (IoB) is a network system consisting of batteries, the Internet of Things (IoT), and cloud servers. IoB connects batteries to a network and incorporates intelligent algorithms. This technology has the potential to modernize … [Read more...]
What is an EV battery state of charge (SOC)?
An electric vehicle (EV) battery state of charge (SOC) represents energy levels as a percentage. Analogous to an internal combustion engine (ICE) fuel gauge, SOC clearly indicates available energy that directly corresponds to the driving range. This … [Read more...]
What is the average expected lifespan of an EV battery?
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 electric vehicles (EVs) are the major powertrain components, including the battery pack, motor, power electronics, and charger. Additional thermal loads include the cabin heating, … [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...]