Today on EV Engineering
Q&A: Engineering vehicle-to-grid integration
Vehicle-to-grid (V2G) technology turns an electric vehicle (EV) from an electrical load into a potential energy resource. Sending power back to the grid, however, requires more than a bidirectional charger. The vehicle and charging system must coordinate power conversion while meeting grid interconnection requirements. Broader V2G deployment also requires engineers to consider how these systems…
Battery-backed dc fast charging expands for Colorado fleets
Xos received a follow-on order from Xcel Energy for three additional Xos Hub mobile energy storage and charging systems to support electric vehicle (EV) charging in Colorado. Two units will be deployed at Xcel Energy service centers in Arvada and Grand Junction to provide dc fast charging for fleet vehicles. A third unit will support…
Melexis signs direct supply agreement with BYD for EV programs
Melexis signed a Master Purchase Agreement with BYD, establishing Melexis as a direct supplier in BYD’s global procurement structure. The agreement formalizes an existing collaboration tied to electric vehicle programs. Under the agreement, BYD gains direct access to Melexis sensors and driver ICs used across electric vehicle (EV) systems, including the powertrain and battery. The…
OCPI integration supports EV fleet charging payments
Driivz, a Vontier company, announced an integration with WEX to support billing for electric vehicle (EV) charging sessions using WEX payments at chargers managed through the Driivz platform. EV fleet operators use the Driivz charging and energy management platform to manage charging operations, billing, and reporting across public, depot, and home charging. The platform also supports…
Researchers develop tri-layer electrolyte for safer lithium-metal EV batteries
Researchers at Chonnam National University in South Korea have developed a new tri-layer composite solid electrolyte designed to improve the safety, cycling stability, and lifespan of lithium-metal batteries, which are being studied for future electric vehicles. Lithium-metal batteries use pure lithium for the negative electrode and offer high theoretical capacity, but dendrite formation, electrolyte degradation,…
FAQs See More >
How do high-voltage interlock loops protect EV electrical systems?Hybrid and electric vehicle (EV) powertrains carry high-voltage circuits, often rated at 400 volts (V) and rising to 800 V…
Where force and torque measurement matters in vehicle validationSimulation gives automotive engineers a way to evaluate vehicle designs before physical prototypes are built. The value of those models…
How brake-by-wire is changing regenerative braking control and validationRegenerative braking gives an electric vehicle (EV) another way to slow down while returning energy to the battery. In some…
What is connector derating, and why does it matter in EVs?Connector derating is a common engineering technique that reduces allowable current below the datasheet value to account for real-world operating…
Part II: Inside the engineering of a magnet-free EV motorIn this two-part series, we examine the engineering behind a rare-earth-free electric vehicle (EV) motor and the trade-offs involved in…
How are EV battery packs tested for leaks?Electric vehicle (EV) battery packs must resist water ingress and retain coolant while maintaining electrical isolation. This article explores how…
How duty cycle determines battery life in off-highway EVsCharge-discharge cycles and calendar aging limit battery life, but operating hours measure neither. For electric vehicle (EV) engineers, that distinction…
Part I: Why rare-earth-free EV motors are difficult to buildTo understand the modern electric vehicle (EV), it helps to look beyond the touchscreen dashboard, the battery skateboard, and the…
Why megawatt charging demands a new approach to testingEvery facet of mobility is undergoing a transformation toward more electric and autonomous transportation. For the freight industry to make…
How do engineers correlate dynamometer testing with real-world EV range?When testing electric vehicles (EVs) for range in laboratories using a dynamometer, engineers often do not see the same EV’s…
Why testing future EV batteries often begins with coin cellsWhen most people think about electric vehicle (EV) battery development, they picture large battery packs, cooling systems, and high-voltage cells…
How to manage creepage and clearance in high-density EV power modules?Creepage and clearance provide the surface and air spacing needed to prevent tracking, arcing, and insulation breakdown in high-voltage power…
Batteries See More >
US lithium project locks in 8,000-tonne annual battery supply dealSmackover Lithium has signed a binding offtake agreement with LG Energy Solution for lithium carbonate from its South West Arkansas…
Researchers develop tri-layer electrolyte for safer lithium-metal EV batteriesResearchers at Chonnam National University in South Korea have developed a new tri-layer composite solid electrolyte designed to improve the…
New JBC white paper examines passive EV battery thermal managementJBC Technologies has released a new white paper examining passive thermal management strategies for electric vehicle batteries. The paper outlines…
Pure Lithium lithium metal battery surpasses 9,315 cyclesPure Lithium has reported more than 9,315 cycles from its Advanced Anode lithium metal battery technology, with the cells continuing…
Nano One expands LFP cathode strategy as global demand growsNano One Materials is advancing its strategy to expand lithium iron phosphate (LFP) cathode active material production as demand grows…
North Carolina facility expands lithium-ion battery separator productionAsahi Kasei has opened a new wet-process lithium-ion battery separator coating line in Charlotte, North Carolina, expanding its North American…
Battery architecture addresses cold-weather range and charging limitsAddionics has introduced a battery architecture designed to improve lithium-ion cell performance and charging capability at low temperatures. The technology…
DOE funding moves silicon-anode batteries toward GWh-scale productionCoreshell Technologies has been selected by the US Department of Energy for a $50 million award to expand production of…
New battery architecture uses module bypassing to improve EV drivetrain efficiencyResearchers at the University of Birmingham have developed a modular electric vehicle (EV) battery architecture that uses solid-state switches to…
Q&A: How standardized imaging can improve battery material characterizationReactive alkali metals such as lithium and sodium are increasingly important to battery development. Their sensitivity to air, moisture, and…
Schaeffler and CATL collaborate on BMS and X-in-1 electrification systemsSchaeffler and CATL have signed a memorandum of understanding to jointly develop automotive battery management systems (BMS) and X-in-1 Integrated…
Brine-based lithium process advances toward US deploymentPrinceton Critical Minerals (PCM) has raised $16 million in combined equity and non-dilutive funding to expand commercial deployment of its…
Componentry See More >
Melexis signs direct supply agreement with BYD for EV programs
Melexis signed a Master Purchase Agreement with BYD, establishing Melexis as a direct supplier in BYD’s global procurement structure. The agreement formalizes an existing collaboration tied to electric vehicle programs. Under the agreement, BYD gains direct access to Melexis sensors and driver ICs used across electric vehicle (EV) systems, including the powertrain and battery. The…
Technology News See More >
US lithium project locks in 8,000-tonne annual battery supply deal
Smackover Lithium has signed a binding offtake agreement with LG Energy Solution for lithium carbonate from its South West Arkansas Project. Under the ten-year take-or-pay agreement, the project will supply LG Energy Solution with 8,000 metric tonnes per year of battery-quality lithium carbonate following the start of commercial production. LG Energy Solution manufactures lithium-ion batteries…
