Today on EV Engineering
EVgo opens first Supercharger station with NACS and CCS compatibility
EVgo has opened its first EVgo-branded Supercharger station near downtown Chicago, Illinois. The 12-stall location marks the beginning of a planned nationwide deployment of hundreds of Tesla V4 Superchargers across the company’s electric vehicle (EV) charging network. The V4 charging equipment is capable of delivering up to 500 kW at 1,000 V. The Chicago station…
New patent covers silicon-enhanced graphite manufacturing process
Focus Graphite has received a Canadian patent covering its silicon-enhanced graphite anode materials and manufacturing process for lithium-ion batteries. Canadian Patent No. 3,209,696, issued October 27, 2026, protects a process for producing silicon-enhanced spherical graphite particles, along with specified resulting materials and battery applications. The technology incorporates silicon nanoparticles into natural graphite particles during their…
Secure flash integration kit addresses EV charging cybersecurity
Winbond Electronics has introduced a Cyber Resilience Act (CRA) Conformance and Integration Kit for its TrustME W77Q secure flash memory family. The kit combines hardware security capabilities, software libraries, integration guidance, and testing resources for connected embedded systems, including electric vehicle (EV) charging equipment. The W77Q secure flash family provides protected storage, authenticated firmware updates,…
New 48-V power management IC integrates voltage regulation and safety diagnostics
Allegro MicroSystems has introduced a portfolio of 48-V power management and sensing components for automotive applications, including electric vehicles (EVs). The devices are designed for steering, braking, active suspension, onboard charging, and dc/dc conversion systems. The portfolio includes the A81481 power management integrated circuit (PMIC), AMD89106 and AMD89186 gate drivers, and A17810 inductive torque sensor.…
How has NACS evolved into the SAE J3400 EV charging standard?
Editor’s note: This article was originally published in November 2023. It is updated here to reflect the publication of SAE J3400, the renaming of NACS, current automaker adoption, and higher Supercharger power levels. The North American Charging Standard (NACS) is a charging standard for electric vehicles launched by Tesla Inc. in November 2022. The NACS…
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How has NACS evolved into the SAE J3400 EV charging standard?Editor’s note: This article was originally published in November 2023. It is updated here to reflect the publication of SAE…
How AI surrogate models can speed up EV battery cooling designCooling design has a direct effect on how an electric vehicle (EV) battery pack handles fast charging and high loads,…
How does impedance spectroscopy detect early EV battery degradation?A battery management system (BMS) normally judges cell health from terminal voltage, current, and temperature. From these readings, capacity fade…
How do 800-V EVs charge on 400-V dc fast chargers?A 400-V-class dc fast charger cannot directly charge an 800-V electric vehicle (EV) battery when its maximum output falls below…
How hydrogen fits into electric vehicle powertrainsHydrogen is increasingly appearing in heavy-duty vehicle electrification, particularly in applications where battery capacity and charging infrastructure present challenges. Although…
How do current-sensing errors propagate through EV motor control systems?Torque decisions in an electric vehicle (EV) traction drive often start from two or three-phase current readings, which leaves little…
EV Talk: Designing EV components with end of life in mindMaterial selection plays an important role in the performance of electric vehicle (EV) components, but engineers are increasingly being asked…
Mitigating high-frequency vibration in structural battery packsModern electric vehicle (EV) battery engineering revolves around removing layers of structure so more active cell material fits into the…
What causes bearing currents in EV motors and how engineers prevent themAn electric vehicle (EV) traction inverter can drive unwanted current through the motor bearings. Its switching creates voltage on the…
Probing considerations for double pulse testing SiC devices and modulesEditor’s note: Silicon carbide (SiC) power devices are widely used in electric vehicle (EV) traction inverters and other high-voltage power…
Five trends shaping conductive additives in batteriesConductive additives make up a small portion of a battery electrode, yet they play a significant role in cell performance.…
How do two-level and three-level inverter topologies compare in EVs?Whenever an electric vehicle (EV) battery bus exceeds 400 V, it poses powertrain design challenges for engineers. One of the…
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New patent covers silicon-enhanced graphite manufacturing processFocus Graphite has received a Canadian patent covering its silicon-enhanced graphite anode materials and manufacturing process for lithium-ion batteries. Canadian…
LG Energy Solution expands cylindrical battery production for EVsLG Energy Solution has outlined plans to expand cylindrical battery manufacturing for electric vehicles (EVs), including the start of US…
Lithium-metal battery testing demonstrates fast charging at 3.6CBlue Solutions has released new fast-charging test results for its Gen4 lithium-metal battery technology, which is being developed for electric…
How does impedance spectroscopy detect early EV battery degradation?A battery management system (BMS) normally judges cell health from terminal voltage, current, and temperature. From these readings, capacity fade…
DOE unveils national battery strategy and manufacturing acceleratorThe US Department of Energy (DOE) has released a national battery strategy and launched the Battery Manufacturing Accelerator (BattMan) to…
High-voltage coolant heaters provide battery and cabin heating for EVsKLC Corporation (Taiwan King Lung Chin PTC Co., Ltd.), a Taiwan-based thermal management manufacturer, has highlighted its high-voltage coolant heaters…
Graphite One advances $80 million US battery anode facilityGraphite One Inc. has received the final air permit from the Ohio Environmental Protection Agency for the first phase of…
New failure criteria predict EV battery short-circuit risk after mechanical impactResearchers at Temple University have developed a method for predicting the probability of internal short circuits in lithium-ion batteries following…
LG Energy Solution opens 2026 battery research competitionLG Energy Solution has opened applications for its Battery Innovation Contest (BIC) 2026, inviting universities and research institutions worldwide to…
New thermal gap filler delivers 12.0 W/m-K conductivity for automotive electronicsParker Chomerics has introduced THERM-A-GAP PAD 120LOE, a thermal gap filler pad offering 12.0 watts per meter-kelvin (W/m-K) thermal conductivity…
Real-time battery diagnostics reduce lithium-ion cell formation time by up to 60%Researchers at Cornell University, working with battery manufacturer Charge CCCV (C4V), have developed a real-time diagnostic approach that reduced lithium-ion…
New passive cooling technology aims to improve EV battery safetyTotalEnergies Lubrifiants has developed the Coolant Keep Plate (CKP), a passive technology designed to improve thermal-runaway protection in immersion-cooled lithium-ion…
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Mercedes-Benz develops programmable power converter for 800-V EV systems
Mercedes-Benz is developing a programmable power converter designed to manage energy flows at the individual battery-cell or cell-group level in future electric vehicles (EVs). The technology uses software-controlled micro-converters to deliver a stable high-voltage output of up to 800 V, regardless of differences in cell state of charge or ageing. Unlike conventional battery architectures, in…
Toshiba to highlight automotive power conversion technologies at electronica 2026
BorgWarner selected to supply high-voltage traction inverters for EVs
New thermal gap filler delivers 12.0 W/m-K conductivity for automotive electronics
High-voltage contactors designed for EV batteries and dc fast charging
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Researchers develop 150-kW integrated EV charger-inverter
Researchers at the University of Tennessee, Knoxville are developing a 150-kW integrated charger-inverter (ICI) system that would let electric vehicles (EVs) use their existing traction power electronics for battery charging. Most EVs use separate systems for charging and propulsion. An onboard charger converts incoming ac power into dc power for the battery, while the traction…
