Today on EV Engineering
High-voltage contactors designed for EV batteries and dc fast charging
TDK Corporation has introduced the HVC28 and HVC29 series of gas-filled, high-voltage direct current (dc) contactors for electric vehicles (EVs), dc fast-charging infrastructure, and other high-power applications. Both series are available with continuous current ratings of 300, 400, 500, and 600 amperes (A), with an optional mechanical auxiliary contact for switching-state monitoring. The HVC28 is…
Wolfspeed to supply 1,200-V SiC devices for BorgWarner’s EV inverters
Wolfspeed has entered into a multiyear supply agreement with BorgWarner to provide silicon carbide (SiC) power devices for the company’s next-generation 800-volt (V) electric vehicle (EV) traction inverter platform. The agreement covers Wolfspeed’s 1,200-V SiC technology, including its fifth-generation (Gen 5) devices, which are designed to meet the efficiency, performance, and reliability requirements of automotive…
New passive cooling technology aims to improve EV battery safety
TotalEnergies Lubrifiants has developed the Coolant Keep Plate (CKP), a passive technology designed to improve thermal-runaway protection in immersion-cooled lithium-ion batteries for electric vehicles (EVs) and other applications. Direct immersion cooling uses dielectric fluid to manage battery temperatures by placing the cooling medium in direct contact with the cells. By eliminating several thermal interfaces between…
How binders and coatings hold EV battery cells in place
Inside a lithium-ion battery cell, electrode binders hold active materials together, while separator coatings maintain alignment between layers during manufacturing. Both play an important role in the cell’s structural integrity throughout its life. In electric vehicle (EV) batteries, which have to hold up through years of fast charging and daily driving, that integrity has a…
Embedded SiC MOSFETs aim to reduce EV traction inverter switching losses
Infineon Technologies has introduced ENDOPACK, a chip-embedding platform designed for power electronics applications across multiple voltage classes and form factors. The platform extends the company’s existing low-voltage chip-embedding technology to high-voltage applications, including electric vehicle (EV) traction inverters. The first automotive solution, ENDOPACK Cell, integrates 1,200-volt Automotive Gen2p CoolSiC silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors…
FAQs See More >
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…
How does fault-tolerant control keep an EV operating after a sensor failure?The rotor in an electric vehicle (EV) traction motor delivers torque through the motor shaft to the drivetrain. A rotor-position…
How motor selection shapes system performanceElectric motor selection often starts with datasheet ratings like peak power, torque, and speed range. These values are required for…
Why e-axle fluids have become an EV engineering problemElectric vehicle (EV) drive units keep getting smaller and more integrated, and that’s changed what the fluid inside them has…
Batteries See More >
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…
How binders and coatings hold EV battery cells in placeInside a lithium-ion battery cell, electrode binders hold active materials together, while separator coatings maintain alignment between layers during manufacturing.…
New high-voltage BMS reference design supports advanced EV battery modelingInfineon Technologies has introduced a high-voltage battery management system (BMS) reference design that enables advanced battery models to run directly…
ITRI and eJoule advance high-nickel cathodes for EV batteriesThe Industrial Technology Research Institute (ITRI) and eJoule Inc. are collaborating to develop longer-life nickel-manganese-cobalt (NCM) lithium-ion batteries for electric…
The Battery Awards 2026 recognize advances in EV and battery technologyThe Battery Show and Electric & Hybrid Vehicle Technology Expo North America have announced the winners of The Battery Awards…
Engineered disorder improves lithium-rich cathode performanceResearchers at Hanbat National University in South Korea have demonstrated that intentionally introducing disorder into lithium-rich cathode materials can improve…
Delta-Q adds Panasonic Energy to battery-charger compatibility programDelta-Q Technologies has added Panasonic Energy Sales Company of America (PECSA) to its Charged by Delta-Q battery compatibility program, expanding…
New sodium-ion cell architecture eliminates conventional anode materialMana Battery is developing an anode-free sodium-ion battery cell using a proprietary liquid electrolyte designed to improve energy density, stability…
Modular BMS supports 12 to 1,500-volt applicationsEberspächer Vecture has introduced GuardIon-IQ, a modular battery management system (BMS) designed to support battery systems operating from 12 to…
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…
Capillary-driven cooling technology targets heat buildup in EV motorsAdeia Inc. has developed a capillary-driven cooling technology designed to improve heat removal within high-power electric vehicle (EV) motors. The…
Componentry See More >
High-voltage contactors designed for EV batteries and dc fast charging
TDK Corporation has introduced the HVC28 and HVC29 series of gas-filled, high-voltage direct current (dc) contactors for electric vehicles (EVs), dc fast-charging infrastructure, and other high-power applications. Both series are available with continuous current ratings of 300, 400, 500, and 600 amperes (A), with an optional mechanical auxiliary contact for switching-state monitoring. The HVC28 is…
Technology News See More >
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 battery cell formation time by up to approximately 60% while maintaining comparable cell performance in testing. Battery formation involves the initial charge and discharge cycles that establish protective interfaces within a cell. These layers play…
