Michelle Froese
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Articles by Michelle Froese
WeaveGrid, Hyundai, and Kia develop smart charging and V2G capabilities
WeaveGrid and Hyundai Motor Group have announced a partnership to develop smart charging and vehicle-to-grid (V2G) capabilities for Hyundai and Kia electric vehicles (EVs) in North America. The collaboration will initially focus on managed charging, also known as V1G, before expanding into bidirectional energy services. The companies are developing a software platform that connects Hyundai and Kia EVs with utility energy management systems.
Audi combines battery management and bidirectional charging
Audi has introduced bidirectional charging capabilities and an updated battery management system in its A2 e-tron electric vehicle (EV). The system combines vehicle-to-load (V2L) and vehicle-to-home (V2H) functionality with coordinated battery thermal management, charging electronics, and software-based energy control. Vehicle-to-grid (V2G) functionality is also planned for future implementation.
Researchers use UWB signals to align wireless EV charging coils
Researchers at the University of Osaka, working with Tokai Rika and the University of California San Diego, have developed an ultra-wideband (UWB) positioning method to help align coils during wireless charging of electric vehicles (EVs). In laboratory tests using a scaled-down vehicle mockup, the method achieved median errors of 2.32 mm in position and 0.25° in orientation. The study was published in the IEEE Open Journal of Vehicular Technology.
New SiC trench MOSFETs address EV charging requirements
Nexperia has introduced a family of 750-V silicon carbide (SiC) trench MOSFETs designed for automotive and industrial power conversion applications. The devices combine low switching losses with temperature-stable on-resistance and are available in several package configurations, including TOLL surface-mount packaging. The MOSFETs are intended for applications including electric vehicle (EV) charging infrastructure, onboard chargers, dc-dc converters, and auxiliary drives.
Visteon, SHINRY, and Infineon develop single-stage GaN onboard charger
Visteon, SHINRY, and Infineon are collaborating on a single-stage onboard charger (OBC) for electric vehicles (EVs) using gallium nitride (GaN) bidirectional switches. The companies announced the development at electronica this week in Munich, Germany. The charger combines the converter architecture and control technology developed by Visteon-Shinry Power Electronics (VSPE), a joint venture between Visteon and SHINRY Technologies, with Infineon’s monolithic GaN bidirectional switches.
All-solid-state EV battery demonstrates 1,000 cycles at atmospheric pressure
QuantumScape has introduced Osprey, an all-solid-state lithium-metal battery platform designed for automotive applications. The technology combines the company’s ceramic separator and anode-free lithium-metal architecture with a solid cathode, addressing some of the challenges associated with sulfide-based solid-state batteries. In early testing, Osprey unit cells completed 1,000 full charge cycles with approximately 80% capacity retention while operating at one atmosphere of pressure.
BMW and Lumissil demonstrate battery communication without dedicated wiring
The approach eliminates the need for dedicated communication wiring within the battery pack. It could simplify electrical connections and reduce wiring weight in future electric vehicle (EV) battery designs. The companies tested the technology on BMW’s Gen6 battery system, introduced in the BMW iX3 earlier this year. Testing demonstrated bidirectional, multi-node communication across the complete high-voltage battery.
Trench-based SiC technology reduces power losses by up to 35%
onsemi has introduced EliteSiC M4, its fourth-generation silicon carbide (SiC) technology platform for power conversion applications, including electric vehicle (EV) traction inverters. Based on a trench architecture, the platform is designed to reduce conduction and switching losses while increasing power density. Compared with the previous generation, EliteSiC M4 delivers up to 30% higher power density and 35% lower power losses, according to onsemi.
EV charging communication reference design integrates ISO 15118 software
Lumissil Microsystems has been selected by Zaptics to provide Green PHY power-line communication (PLC) technology for an electric vehicle communication controller (EVCC) reference design. The system is intended to simplify the development of vehicle-side charging communication systems compliant with ISO 15118. Zaptics has developed two EVCC products using Lumissil’s CG5317 Green PHY technology.
Battery evaluation kit combines DCIR and EIS measurements
Dukosi has introduced a dc internal resistance (DCIR) and electrochemical impedance spectroscopy (EIS) evaluation kit for lithium-ion battery development, including battery packs used in electric vehicles (EVs). The kit allows engineers to evaluate cell-level measurements using Dukosi’s Smart Cell chip-on-cell monitoring technology. The evaluation kit provides DCIR measurements that give battery management systems (BMS) information about individual cell conditions.
Hall-effect current sensors measure up to ±50 A in EV charging systems
Diodes Incorporated has introduced the AHC1724Q and AHC1725Q automotive-compliant Hall effect current sensors for electric vehicle (EV) charging applications. The devices provide galvanically isolated ac and dc current measurement for onboard chargers and charging stations, with low conductor resistance to reduce power losses. Both sensors integrate a low-resistance copper conduction path with a linear Hall sensor circuit.
High-power test equipment expands voltage coverage to 1,500 V
Keysight Technologies has expanded its high-power automated test equipment (ATE) portfolio with additional voltage and current options for testing electric vehicle (EV) batteries, charging systems and power conversion equipment. The expansion includes regenerative power supplies, electronic loads and a new family of dc power supplies delivering up to 12 kW. The new configurations extend voltage coverage to 1,500 V for high-voltage battery modules and power converters.
What field failures reveal about heavy-duty e-axle validation
Heavy-duty electric vehicles (EVs) place considerable demands on their drivetrains, with sustained high torque and repeated loading over long service lives. An electric axle (e-axle) adds to that challenge by packaging the electric motor and gearbox into one compact drive unit. Gears and bearings no longer operate on their own, since the motor’s behavior and the heat inside the assembly affect how they wear.
800-V EV inverter development focuses on reducing switching losses
Hillcrest Energy Technologies has signed a technology collaboration agreement with UK drivetrain manufacturer Equipmake to jointly develop an 800-V traction inverter using Hillcrest’s zero voltage switching (ZVS) technology. The inverter is intended for heavy-duty commercial vehicles and off-highway equipment. Heavy-duty electric vehicles (EVs) operate over long, high-power duty cycles, making inverter efficiency an important factor in battery sizing and operating costs.
New electric drivetrain reaches 30,000 rpm with reduced size and weight
ZF has developed the High Revolution Drive, a compact three-in-one electric drivetrain with a motor capable of reaching 30,000 rpm. The system integrates the electric motor with power electronics and a two-stage transmission, reducing overall size and weight while maintaining comparable power output. The higher rotational speed allows the motor to produce the same power with less torque, reducing the required rotor volume.
GaN-based traction inverter under development for EVs
Cambridge GaN Devices (CGD) is working with Ricardo to develop a high-efficiency gallium nitride (GaN)-based traction inverter for electric vehicles (EVs) as part of the Nissan-led Project SUITE (Sustainable Use of Integrated Technology for EVs). The project focuses on improving EV charging and powertrain efficiency through the integration of advanced power semiconductor and vehicle technologies.
RISC-V microcontroller architecture brings scalable computing to EV systems
Infineon Technologies has introduced AURIX RC1, a new automotive microcontroller (MCU) platform based on the open-standard RISC-V instruction set architecture. The platform is designed for real-time control in software-defined vehicles, including electric vehicles (EVs), where computing functions are increasingly consolidated into central vehicle computers and zonal controllers.
Vishay to showcase EV charging and power conversion technologies at electronica 2026
Vishay Intertechnology will showcase several electric vehicle (EV) power electronics reference designs at electronica, taking place November 10–13, 2026, in Munich, Germany (Hall C4, booth 478). Among the designs is a 22-kW bidirectional ac/dc conversion stage for onboard EV chargers, using silicon carbide (SiC) MOSFET power modules and dc-link film capacitors to convert ac input to 800 Vdc.
How ceramifying coatings protect EV battery enclosures
When a battery cell goes into thermal runaway, the enclosure around it is one of the last barriers between the failure and the rest of the vehicle. It has to hold up against fire and blasts of hot debris while keeping high-voltage components electrically isolated. That job gets harder as battery packs become more compact, leaving engineers less room for protective materials and little tolerance for anything that slows down production.
New GaN power devices span 40 to 1,200 V
GaNrich Semiconductor has expanded its gallium nitride (GaN) power device portfolio to cover voltages from 40 to 1,200 V. The range includes high-voltage devices intended for power conversion in electric vehicles (EVs) and onboard charging systems. The portfolio uses GaN-on-silicon and GaN-on-sapphire semiconductor platforms. According to GaNrich, the devices offer high-speed switching with low conduction losses.
New MCS chargers enable high-power electric truck charging
Forum Mobility has installed two Megawatt Charging Standard (MCS) chargers at its FM Harbor electric truck charging depot near the Port of Long Beach in California. The charging equipment is compatible with production Tesla Semi trucks. According to Forum Mobility, the chargers can replenish up to 60% of a Tesla Semi’s driving range in 30 minutes. The company did not specify the individual chargers’ rated power output or the battery conditions used to determine this figure.
NOVOSENSE showcases EV power electronics at electronica 2026
NOVOSENSE Microelectronics will showcase semiconductor technologies for electric vehicle (EV) power conversion at electronica 2026, taking place November 10-13 in Munich, Germany (Hall C5, Booth 159). The company will highlight components designed for high-voltage EV electrical architectures. Among them is the NSI6911F isolated gate driver for traction inverters, onboard chargers, and dc/dc converters.
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 inverter converts battery dc power into ac power for the electric motor.
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.
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.
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, version enforcement, rollback protection, and recovery capabilities.
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.
LG Energy Solution expands cylindrical battery production for EVs
LG Energy Solution has outlined plans to expand cylindrical battery manufacturing for electric vehicles (EVs), including the start of US production of 46-series cells by the end of 2026. The company also plans to add production lines for tabless 2170 batteries for hybrid electric vehicles in 2027. Its North American cylindrical battery manufacturing capacity is expected to exceed 20 GWh by the end of that year.
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.
ABB E-mobility and Oreve expand electric truck charging network
ABB E-mobility and French charge point operator Oreve are expanding their partnership to deploy 12 additional high-power charging sites for electric vehicles (EVs), particularly heavy-duty trucks, along major freight routes in France. The expansion will add approximately 100 charging points and 18 MW of installed capacity by the end of 2028. The companies have already deployed six charging sites over their three-year partnership, including locations in Bourg-de-Péage, Vénissieux, and Pardies.
How AI surrogate models can speed up EV battery cooling design
Cooling design has a direct effect on how an electric vehicle (EV) battery pack handles fast charging and high loads, and how long its cells last. Every change to the cell chemistry or pack layout can mean another round of thermal simulation, and some of those simulations take hours to run. Much of the information engineers need for a new cooling design may already exist in results from earlier projects. The difficulty is putting that data to use.
Lithium-metal battery testing demonstrates fast charging at 3.6C
Blue Solutions has released new fast-charging test results for its Gen4 lithium-metal battery technology, which is being developed for electric vehicles (EVs). In tests using 10 Ah nickel manganese cobalt (NMC) pouch cells, the batteries recovered 70% of their capacity in under 11.5 minutes at 40° C with a charging rate of 3.6C. At 25° C, the cells achieved the same 70% charge level in 14 minutes at a 3.0C charging rate. The company also evaluated charging performance at a constant 4C rate.
Compact HD thermal camera enables detailed EV battery analysis
Teledyne FLIR has introduced the A8481, a compact high-definition mid-wave infrared (MWIR) science camera suitable for thermal research and testing of electric vehicle (EV) batteries. The camera enables researchers to analyze temperature distribution and thermal behavior across battery components and assemblies. The A8481 features a 1280 × 1024 resolution detector with 8 µm pixels and thermal sensitivity below 30 mK.
Toshiba to highlight automotive power conversion technologies at electronica 2026
Toshiba Electronics Europe will showcase its semiconductor and power conversion technologies at electronica 2026, taking place November 10–13 in Munich, Germany. The exhibition will include demonstrations of motor control and power electronics for electric vehicles (EVs).
Software toolchain integrates development and testing for automotive microcontrollers
TASKING has launched a unified software development toolchain for NXP Semiconductors’ S32K5 automotive microcontroller family. Developed in collaboration with NXP, the toolchain combines software compilation, debugging, and verification in a single environment for next-generation vehicle electronics and electrification systems. The development environment is designed for software-defined vehicles (SDVs), including zonal architectures that consolidate electronic control functions.
ANSI report identifies new priorities for EV battery safety and charging
The American National Standards Institute (ANSI) has released its October 2026 Gaps Progress Report, which tracks standards development for electric vehicles (EVs) in the US. The report reviews progress on 30 previously identified standardization gaps and proposes three new ones: The report was developed by ANSI’s Electric Vehicles Standards Panel (EVSP), which brings public- and private-sector stakeholders together to coordinate standards work for large-scale EV deployment.
EV diagnostic tools gain integrated access to OEM repair procedures
Autel U.S. has partnered with ALLDATA, an AutoZone company, to integrate original equipment manufacturer (OEM) repair information into its MaxiSYS diagnostic software. The integration connects vehicle fault codes with corresponding factory repair procedures without requiring technicians to switch between separate systems. The functionality is available on several MaxiSYS tablets, including the Ultra EV platform designed for electric vehicle (EV) diagnostics.
ZF expands electric drivetrain repair portfolio for the aftermarket
ZF Aftermarket will showcase its expanded maintenance and repair portfolio for electric vehicles (EVs) at AAPEX 2026, taking place November 3–5, 2026, in Las Vegas. The offering includes a new oil change kit for Tesla applications and component-level repair solutions for electric drivetrains. The Tesla oil change kit is designed for the reduction gearboxes used in battery-electric vehicles.
DOE unveils national battery strategy and manufacturing accelerator
The US Department of Energy (DOE) has released a national battery strategy and launched the Battery Manufacturing Accelerator (BattMan) to advance domestic battery production and technology development. The initiatives focus on strengthening US supply chains, reducing manufacturing costs, and accelerating the commercialization of advanced battery technologies.
High-voltage coolant heaters provide battery and cabin heating for EVs
KLC Corporation (Taiwan King Lung Chin PTC Co., Ltd.), a Taiwan-based thermal management manufacturer, has highlighted its high-voltage coolant heaters for electric vehicles (EVs). The heaters are designed for battery preheating and cabin heating. The company’s heating solutions are available with voltage ratings ranging from 12 to 400 Vdc, depending on the product series. Power outputs reach up to 12,000 W.
Graphite One advances $80 Million US battery anode facility
Graphite One Inc. has received the final air permit from the Ohio Environmental Protection Agency for the first phase of its planned battery anode material manufacturing facility in Conneaut, Ohio. The ten-year permit, effective October 27, 2026, covers a proposed $80 million plant with an annual production capacity of 10,000 tonnes of synthetic graphite anode material used in lithium-ion batteries for electric vehicles (EVs) and energy storage systems.
Precision measurement for safer, more reliable EVs
Some of the most important dimensions in an electric vehicle (EV) are the ones no one sees. A deviation of only 100 microns in battery cell spacing can affect cooling pathways and raise the risk of hotspots or electrical faults. At that scale, feeler gauges and mechanical shims can’t deliver the accuracy EV systems require. Below, Scott Arnold of Capacitec explains how capacitive sensors measure these gaps and why that data matters for EV safety and reliability.
New failure criteria predict EV battery short-circuit risk after mechanical impact
Researchers at Temple University have developed a method for predicting the probability of internal short circuits in lithium-ion batteries following mechanical damage. The approach, known as the SAHRAEI failure criteria, could help engineers improve electric vehicle (EV) battery crashworthiness while reducing the weight of protective battery pack structures.
LG Energy Solution opens 2026 battery research competition
LG Energy Solution has opened applications for its Battery Innovation Contest (BIC) 2026, inviting universities and research institutions worldwide to submit proposals for advanced battery technologies with potential commercial applications. The program aims to connect academic researchers with industry research and development needs, including technologies relevant to electric vehicle (EV) batteries.
BorgWarner selected to supply high-voltage traction inverters for EVs
BorgWarner has secured a new contract to supply its next-generation high-voltage traction inverter technology for future battery-electric vehicle (EV) programs from a global automaker. The agreement builds on an existing customer relationship and expands BorgWarner’s role in the manufacturer’s electric powertrain development.
New thermal gap filler delivers 12.0 W/m-K conductivity for automotive electronics
Parker 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 with low silicone oil bleed and migration. The material is designed for long-term thermal management in high-performance electronics, including automotive modules and other applications.
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.
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 power electronics.
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.
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.
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