Articles tagged with Electric Vehicles
Researchers at Graz University of Technology developed design guidelines for batteries in electric vehicles to increase safety, make repairs easier, and improve sustainability. The new designs facilitate recycling and reuse of damaged cells, reducing waste and conserving resources.
A McGill University-led study recommends cold-climate cities expand electric bus fleets and implement slow charging to optimize operations and reduce energy consumption. The approach aims to eliminate diesel reliance and minimize operating costs, making transit systems more cost-effective and eco-friendly.
Researchers discovered that scandium doping and coating improve the durability and performance of sodium-ion batteries by stabilizing the crystal structure and suppressing side reactions. The study found that doping improves bulk stability while coating enhances surface stability, leading to improved capacity retention and long-term cy...
Research from University of California - Santa Cruz shows battery electric cars produce less carbon emissions than internal combustion engines. Replacing a functional gas-powered vehicle with an EV leads to significant emission reduction benefits, making it the right choice for environmentally conscious consumers.
A new study by Hanyang University ERICA researchers reveals how air exposure can trigger chemical changes in manganese-coated batteries, accelerating degradation. The team proposes a simple solution to suppress defective surface phases and restore stable manganese-oxygen bonding, leading to improved long-term durability.
Researchers at UC San Diego have found a dramatic increase in e-bike injuries across California, particularly among children. The study highlights the urgent need for safety education, infrastructure improvements, and policy changes to prevent preventable injuries and deaths.
Researchers at ORNL developed a novel electric motor drive design that cuts neutral-point current and common-mode voltage to reduce excess heat and premature wear. The approach achieves a 90% reduction in neutral-point voltage fluctuations and a 43% drop in capacitor current stress, improving system reliability.
A new study from Chalmers University of Technology reveals that nearly half of fatal electric scooter crashes in Sweden are caused by drunk riding. The majority of these crashes occur on private scooters and at night or evening hours, with many victims not wearing helmets.
Researchers developed a new battery management system that uses everyday charging data to detect when silicon is most vulnerable. This helps guide battery temperature control to protect it. By applying heat when silicon works harder and cooling the battery when graphite takes over, the system aims to extend EV battery life.
University of Michigan researchers developed a framework to help stakeholders consider economic, environmental, and social trade-offs in EV battery development. The framework aims to balance the needs of various stakeholders, including manufacturers, drivers, and recyclers, to achieve better outcomes for batteries and electric vehicles.
Research from the University of Michigan shows that switching to fuel cells or batteries can reduce lifetime greenhouse gas emissions by up to 90% compared to diesel-powered vehicles. The study found that hydrogen fuel cells and battery electric powertrains offered the largest emissions reductions.
A new study by UCL researchers found that electric vehicles' carbon-reduction benefits vary across Chinese cities due to unequal distribution of electricity generation. The study suggests that richer cities can transfer their emissions to less developed cities, increasing pollution and costs.
A new battery management system developed in the EU project Nemo enables early damage detection and extends service life of electric car batteries. The system uses advanced sensor technology to monitor battery cells and predict aging, reducing the risk of internal short circuits and thermal peaks.
Researchers at Fraunhofer Institute develop a GaN-based power electronics module for 800V bidirectional direct current charging systems. The module enables flexible and efficient charging with improved compactness and reduced costs.
MIT engineers have developed a new propulsion system that integrates chemical and electrical thrusters, allowing small satellites to perform both fast maneuvers and precise adjustments. The system uses a special propellant called ASCENT, which powers both types of thrusters, enabling smaller and more flexible spacecraft.
A new adaptive charging strategy for lithium-ion batteries reduces battery degradation and improves efficiency. The strategy uses real-time monitoring and adjusts charging currents to prevent lithium plating, resulting in improved charge capacity utilisation and charging efficiency.
A new study by the University of Exeter reveals that Brazil and Mexico's EV growth has been shaped by factors beyond emissions and efficiency. The research highlights how domestic coalitions, market size, and foreign technology influences have driven policy decisions in both countries.
Researchers find popular sodium-ion battery matches performance parameters and production quality of Tesla's lithium-ion batteries. Tweaking the Hina battery to charge more effectively at low temperatures could provide a cost-effective alternative for future electric vehicle batteries.
A Princeton study projects persistent shortfalls in critical EV battery materials if domestic production expansion, demand-side strategies, and international sourcing are not aligned. Domestic expansion can meet projected demand for some key materials, but significant uncertainties remain.
Researchers at Chalmers University of Technology developed an AI method that adapts fast charging to the health of the battery, increasing its lifespan by almost 23%. The new strategy uses reinforcement learning and takes into account the battery's chemistry and state of health.
A new study by MIT researchers finds that electric vehicles generate less greenhouse gas emissions and do not cost more than comparable gas-powered vehicles for most US drivers. The analysis considers individual driving patterns, meteorological data, and fuel prices to provide a comprehensive picture of emissions and costs.
Researchers analyzed battery development in electric vehicles over 15 years, finding that market innovation can quickly address material shortages and price increases. The study suggests individual materials may not be as critical to the energy transition as previously thought.
A novel energy management system (EMS) reduces converter count, battery stress, and hydrogen use in stand-alone hybrid photovoltaic and proton exchange membrane fuel cell microgrids. The EMS maintains DC-link stability while adapting to changing renewable generation and load conditions.
Researchers developed a health-aware V2G strategy using reinforcement learning to optimize charging and discharging times, resulting in significant lifecycle cost savings ($1,539) and extended battery life (21 months). The study suggests electric bus charging stations can be promising platforms for scalable V2G services.
Researchers designed a high-efficiency bidirectional wireless power transfer system for multiple electric vehicles, supporting both grid-to-battery and battery-to-grid operations. The system achieved high efficiency under various operating conditions, with demonstrated interoperability between different vehicle-side equipment.
A new planning framework proposes integrating bidirectional electric vehicle battery networks into sustainable communities, evaluating how EVs can support local energy systems. The framework models EVs as active participants in the neighborhood energy system, simulating grid interaction and energy exchange characteristics.
Researchers developed an energy-saving control strategy for intelligent connected plug-in hybrid electric vehicles that incorporates driving-intention identification of the vehicle ahead. The approach optimizes speed, improves energy economy, and maintains comfort and safety by anticipating front-vehicle behavior.
Researchers propose a novel SENet-CNN-Transformer model to predict electric vehicle charging duration, outperforming existing models in accuracy and reducing training time. The approach combines data enhancement, channel attention, convolutional neural networks, Transformer modeling, and transfer learning to address real-world data sca...
A new study finds that aggressive policy action and cost reductions can accelerate the global shift to electric vehicles, reducing energy use and carbon emissions. The study suggests a uniform 20% reduction in non-energy costs could dramatically increase EV adoption rates, with market share rising from 25-50% to 70-85% globally by 2035.
A study by researchers from the University of Michigan and international institutions recommends prioritizing grid upgrades targeting long-term demand expectations to minimize total costs. By upgrading the grid first, utilities can create a more efficient infrastructure that leverages Vehicle-to-Grid (V2G) chargers more effectively.
A new study suggests that electric vehicles can serve as a vast network of mobile batteries, storing excess energy and feeding it back into the grid when demand surges. This approach could ease grid strain, cut emissions, and create revenue, but only if paired with timely grid upgrades.
Researchers developed a novel lithium-ion battery anode that stores more than 3500 milliampere-hours per gram, outperforming current graphite-based batteries. The new design, VISiCNT, features a vertically integrated silicon-carbon nanotube structure that maintains performance and stability over hundreds of charge cycles.
A new fusion model combining CNN, GRU, and PF techniques achieves remarkable improvements in lithium-ion battery RUL prediction accuracy. This enhances safety and longevity in electric vehicles and grid applications.
Researchers examined how autonomous vehicles affect morning commutes and parking in business districts, finding that AVs could increase vehicle hours and miles traveled. Urban planners can adapt policies to accommodate AVs by adjusting parking fees or infrastructure, reducing total system cost by up to 28.5 percent.
Researchers developed an accurate detection approach for lithium plating in lithium-ion capacitors, enabling safe exploitation of their full potential. The study reveals that lithium plating initiates at a charging rate of 20 C and can be reversed under certain conditions, but above 50 C, irreversible 'dead' lithium accumulates.
A new study uses swarm intelligence to optimize the integration of distributed generation and fast Electric Vehicle Charging Stations in power distribution networks. The approach reduces active power losses by up to 68% and enhances voltage profiles across the network.
A new study identifies the barriers to vehicle-to-grid (V2G) adoption, including coordination problems, limited infrastructure, and varying regulations. V2G technology can provide backup power during periods of high energy demand and earn EV owners money for supplying energy to the grid.
Researchers at Nagoya University present six advances in gallium oxide thin-film growth, including a world-first result growing the material on low-cost silicon substrates. The new High-Density Oxygen Radical Source doubles atomic oxygen density, promoting chemical reaction and film growth.
A team of researchers has developed a practical and powerful all-solid-state battery using lithium-sulfur conversion chemistry. By optimizing particle size and material arrangement, they achieved a discharge capacity of 1500 milliampere-hours per gram of sulfur, bringing the technology closer to realizing its theoretical capacity.
Researchers at University of Michigan found that improved EV battery technology will outlast expected heat-related degradation from climate change, even in warming scenarios. The study's results suggest a boost to consumer confidence in EV batteries.
A groundbreaking system repurposes a vehicle's taillight as an LED matrix transmitter to enable data transmission between vehicles in platoons. The approach eliminates the need for roadside units or photodetectors, offering a secure and low-cost solution for V2V communication.
Researchers at Tokyo Metropolitan University have created a rotating tabletop device to test dynamic wireless power transfer for electric vehicles. They successfully replicated conditions of a car moving at 40 kilometers per hour, promising accelerated research into next-gen charging.
Researchers at the University of Chicago have developed a new dry-processed electrode architecture that improves battery performance, reduces cost, and has environmental benefits. The dry process eliminates toxic solvents and creates a more robust battery with better conductivity.
The study reveals that redefining the concept of electrode-electrolyte interphase layers can improve battery stability and performance. Researchers found that careful control of interphase properties through materials choice, electrolyte formulation, and binder selection can significantly extend battery life.
Researchers at IISc have developed a new gate stack that cuts gate leakage by up to 10,000 times, improving threshold stability and reaching high gate breakdown voltages. The advancements enable GaN technology adoption in high-reliability applications.
The article highlights the psychological demands of self-driving cars on human brains, citing Professor McLeod's research and personal experience. He emphasizes the need for clearer interfaces, simulation-based training, and updated driving tests to address these challenges and ensure safe automation uptake across society.
The Bai lab has developed two patented technologies to improve electric vehicle (EV) charging and power conversion, in collaboration with FORVIA HELLA and Volkswagen Group of America. These innovations enable more efficient energy transfer between the AC grid, high-voltage car battery, and low-voltage car battery.
A Concordia University study reveals that nearly half of Montreal's elderly care facilities lack public EV charging stations within a 15-minute walk. This limits access not only for residents but also for caregivers and staff. Strategically placing new chargers in underserved areas can improve accessibility without expanding the network.
A new study from the University of Michigan found that used electric vehicles (EVs) currently offer the lowest lifetime cost of ownership, with significant savings for drivers. The researchers analyzed virtual vehicle models, monthly gas and electricity prices, and Craigslist data to determine the total cost of ownership for different ...
The Advanced Driving Simulation Center enables researchers to realistically test and optimize vehicles, chassis, and advanced driver assistance systems. The simulator's high bandwidth generates fine vibrations, crucial for optimizing electric vehicle comfort.
A new study using satellite data confirms that California's shift to electric vehicles is making measurable differences in air quality and public health. For every 200 ZEVs added, nitrogen dioxide levels dropped 1.1%.
A team of researchers from Chonnam National University explores how boosting consumer trust can increase adoption of second-life EV battery tech. They found that transparent safety inspections and tailored messaging can improve adoption outcomes.
Stanford researchers have discovered a way to toughen the surface of a solid electrolyte fivefold against fracturing, making it more durable for next-generation energy storage technologies. The silver coating also prevents lithium from intruding and growing destructive branches inside the electrolyte.
A team of researchers developed a comprehensive framework for electric vehicle (EV) range prediction and intelligent management using real-world data. The framework, which incorporates driving behavior, ambient temperature, and battery State of Health, improves prediction accuracy by up to 30%.
Researchers have uncovered root causes of battery failure, including nanoscopic strains that lead to cracking. The study identifies distinct mechanical failure modes and composition requirements for single-crystal cathodes.
A new study from the University of Michigan and Ford Motor Company suggests that EV owners can save thousands on their energy bills and cut carbon emissions by using their vehicles' batteries to power households. The technology, known as V2H, can reduce lifecycle greenhouse gas emissions from a household's electricity use by 70-250%.
Hua Bai and Sheng Dai, faculty members at the University of Tennessee, have been elected National Academy of Inventors (NAI) Fellows for their innovative research in power electronics and advanced materials. Their work has led to significant advancements in electrical vehicle technology and energy-related applications.
The University of Toronto has launched Electric Vehicle Innovation Ontario (EVIO), a partnership between industry and academia to develop next-generation electric vehicle technologies. The program will generate over $30 million in economic activity, expand firm-level R&D capacity, and create new Canadian intellectual property.
A recent study by the University of Leeds found that electric vehicles (EVs) are no more dangerous to pedestrians than traditional petrol or diesel cars. The research compared pedestrian casualty rates between EVs and non-electric vehicles, finding no significant difference.
A team of researchers designed a custom approach sound library for electric vehicles using low-frequency noise, which was found to be more effective at alerting pedestrians. The sounds were tested with volunteers and ranked highly on criteria such as urgency and noticeability.