Articles tagged with Electric Vehicles
Researchers have observed for the first time how silicon anodes degrade in lithium-ion batteries due to swelling and electrolyte infiltration. This degradation leads to reduced battery capacity and charging speed, but scientists are exploring ways to protect silicon from these effects.
China's space transportation systems have made significant leaps in recent decades, with advancements in launch vehicles, propulsion systems, and artificial intelligence. The country aims to become a powerful space nation by the mid-21st century, with plans for manned missions to the Moon and Mars.
A new study refutes a long-standing explanation for low energy efficiency in lithium-ion batteries, suggesting that voltage hysteresis is caused by reversible electron transfer between oxygen and transition metal atoms. This phenomenon could be mitigated through manipulation of electron transfer barriers.
Researchers discovered that particulate emissions from auxiliary heaters can be significantly higher than those of idling gasoline vehicles, raising concerns about their environmental impact. The study highlights the need for further research on the use and development of heaters to reduce emissions.
The new alkali metal-chlorine batteries can cycle up to 200 times and achieve a capacity of 1,200 milliamp hours per gram, significantly outperforming commercial lithium-ion batteries. Researchers envision their batteries being used in satellites and remote sensors where frequent recharging is not practical.
A team led by Dr. Yu Zhu has developed a more stable way to store energy in redox flow batteries, with a focus on aqueous organic materials and a new design strategy to enhance solubility. The technology has the potential to improve the usability of electricity-powered facilities such as vehicles.
Researchers at OIST developed a hybrid material to improve lithium sulfur battery performance, reducing polysulfide dissolution and increasing efficiency. The new design resulted in shorter charging times, longer life between charges, and improved overall lifespan.
Researchers found hybrid electric vehicles have twice the vulnerability to supply chain disruptions as gas-powered models, due to volatile battery prices and scarce materials. Long-term supplier contracts and material substitution can mitigate these risks as manufacturers ramp up EV production.
A study from University of Michigan researchers found that electric delivery vehicle charging practices can greatly impact their potential to reduce greenhouse gas emissions. Optimizing charging strategies can lower emissions by up to 37% and protect investment. Charging from a cleaner energy source, such as renewables, is key.
Faster EV adoption and renewable energy generation will significantly reduce CO2 emissions in Hawaii, with a potential decrease of up to 93% by 2050. This is made possible through mathematical models created by University of Hawaii at Manoa faculty member Katherine McKenzie.
Scientists at PNNL have developed a lithium-metal battery that lasts for 600 cycles, significantly longer than previous records. By using thin strips of lithium, the team was able to reduce unwanted side reactions and improve the battery's performance.
A team of researchers, led by Dr. Muzammil Arshad, conducted a study on the performance of hydrogen-enriched fuel in spark ignition engines. The findings show that adding hydrogen can reduce in-cylinder peak pressure and emissions, making it a potential solution to improve fuel efficiency and reduce harmful emissions.
Researchers at Penn State have designed and tested prototype batteries for electric vertical takeoff and landing (eVTOL) vehicles, which require high energy density and rapid charging. The batteries can sustain over 2,000 fast-charges and retain some charge to ensure safety in the air.
Researchers at University of Michigan identify key questions in developing lithium metal solid-state batteries for increased EV range and improved safety. However, addressing these challenges, such as ceramic production and battery management system design, is crucial to their commercialization.
Researchers developed advanced torque vectoring methods to enhance power consumption, safety, and driveability in electric vehicles. The innovative system uses predictive control models with fuzzy logic to adaptively prioritize vehicle dynamics or energy efficiency.
A study of charging patterns on a University of California San Diego campus found that DC fast chargers were less affected by the pandemic, with usage returning to near-normal levels. The researchers recommend deploying additional DCFCs on campus and beyond to support growing EV adoption.
Researchers found that older lithium-based batteries are safer due to reduced energy potential, leading to more efficient designs and improved safety. The study's results will aid in deriving safety factors for subsequent use of used batteries.
A new study from the University of Georgia has developed an inexpensive and spark-free optical-based hydrogen sensor that detects hydrogen presence without electronics, making it safer for widespread use. The sensor boasts faster response time and increased sensitivity compared to previous models, addressing key hurdles in hydrogen pow...
Scientists at NUST MISIS created new magnesium alloys that can reduce the weight of heat-removing elements in electric vehicles and consumer electronics by one third. The alloys offer high thermal conductivity and low cost, making them suitable for modern gadgets.
Researchers analyzed a database of over 3 million urban electric vehicles in China to understand energy consumption patterns. They found that energy consumption changes by up to 21% during winter-to-spring seasonal transitions.
Researchers will explore decision-making processes for adopting solar energy systems and electric vehicles, as well as improve the efficiency and manufacturing process for solar panels. The studies aim to identify non-technological barriers to clean-energy adoption and evaluate the effectiveness of low-cost interventions and incentives.
Researchers combined machine learning with physics and chemistry to discover a process that shortens lithium-ion battery lifetimes, overturning long-held assumptions. The approach could dramatically accelerate the development of sturdier batteries for electric vehicles.
Retailers can increase customer comfort and attract EV owners by installing solar canopies on parking lots. This can provide a path for green consumerism and incentivize shopping, ultimately increasing store selection and profit.
Researchers developed an AI that accurately identifies places with insufficient or out-of-service stations. The tool is particularly effective in micropolitan areas, where population growth may lead to infrastructure issues.
A new study from MIT researchers reveals that installing charging stations on residential streets and adding high-speed charging stations along highways can greatly increase the adoption of electric cars. The findings suggest that making convenient charging options available to people, especially those with limited access to garages or...
A team of Penn State engineers has developed a lithium iron phosphate battery that can charge in 10 minutes and reduce range anxiety in electric vehicles. The battery's ability to quickly heat up and cool down allows for rapid recharging without sacrificing performance.
KAUST researchers applied statistical geometry to study the impact of wireless charging roads on driver behavior and city planning. They found that drivers would have an 80% chance of encountering a charging road after driving 500 meters when installed on 20% of roads.
A new class of nickel-iron-aluminum-based cathodes shows promise as a substitute for cobalt-based cathodes in lithium-ion batteries. The NFA class delivers high specific capacities and can be integrated into existing manufacturing processes, making them potentially cost-effective and sustainable.
Researchers at Incheon National University developed a novel control strategy to optimize current delivery in multi-Tx wireless charging, enabling real-time adjustment and maximizing efficiency. This breakthrough can improve the performance of robots and electric cars by reducing battery size and weight.
A University of Central Florida researcher has created a new technique to keep lithium-ion batteries from degrading over time. The method involves applying a thin film-like coating of copper and tin to the anode, significantly reducing degradation by more than 1,000 percent.
Researchers have developed an engineered electrode material that enables high-capacity Lithium-ion batteries with fast-charging capabilities. The material, combining black phosphorus and graphite, shows improved stability and efficiency, restoring 80% of its full capacity in under 10 minutes.
A new study published in Nature Climate Change estimates that meeting UN climate targets would require up to 90% of US passenger vehicles to be electric by 2050. The researchers found that a fleet of 350 million EVs would increase electricity demand by 41%, posing significant technological and infrastructure challenges.
Scientists at Oak Ridge National Laboratory created a composite material that increases electrical current capacity of copper wires, enabling more efficient electric vehicle traction motors. The new material can be scaled for use in ultra-efficient devices with improved performance and reduced cost.
A new algorithm developed by Stanford University scientists can accurately predict the remaining storage capacity and charge level of lithium-ion batteries in real-time. This innovation has the potential to enable smaller battery packs and greater driving ranges in electric vehicles, reducing costs and environmental impact.
UD Prof. Koffi Pierre Yao receives a $1 million grant to create a next-generation battery that will power devices longer, making them more affordable and accessible. The new anode material can store up to 10 times the energy of current batteries.
Maestro, a predictive software developed by CSEM, analyzes weather forecasts and data from local infrastructure to determine the best time to consume energy. The system can reduce heating costs by approximately 20% and is designed to keep costs down, making it suitable for individual homes and entire neighborhoods.
A Berkeley Lab study finds that California's winter precipitation will become 50% more variable by 2100, affecting agriculture, flood control, and water resource management. The MJO, a global rainfall pattern, is expected to transfer its precipitation-related atmospheric conditions to the West Coast via changes in strong winds.
The new ASPIRE center will develop holistic solutions for vehicle electrification and decarbonization of the electric grid. Researchers will focus on charging technology integrated into roadways and parking facilities to eliminate range and charging as obstacles, enabling low-cost, sustainable solutions.
As electric vehicles accelerate, cities and utilities face the challenge of smoothing out the duck curve and avoiding costly new infrastructure. Smart charging strategies can help reduce demand peaks and fill in the gap.
Researchers at NREL have found that driving electric vehicles can save motorists as much as $14,500 on fuel costs over 15 years. The study considered state-by-state differences and the cost of charging equipment and installation costs to estimate total fuel cost savings.
Engineers have developed high-power direct borohydride fuel cells that can power unmanned underwater vehicles and drones with significantly lower cost. The new fuel cells operate at double the voltage of conventional hydrogen fuel cells, allowing for a smaller and more efficient design.
A new study from Georgia Institute of Technology reveals surprising findings about electric vehicle drivers' perceptions of charging stations, highlighting the importance of quality infrastructure. Contrary to conventional wisdom, public charging stations do not receive more positive reviews than private ones, and dense urban areas exp...
Researchers at Skoltech and MIPT predicted and experimentally confirmed the existence of exotic hexagonal NaCl thin films on a diamond surface. The films may be useful as gate dielectrics for field-effect transistors in electric vehicles and telecommunication equipment.
A new machine learning method can predict battery health with 10x higher accuracy, enabling safer and more reliable batteries for electric vehicles and consumer electronics. The method is non-invasive and uses electrical pulses to measure the response of lithium-ion batteries.
Researchers at the University of Tokyo have developed a new fluorinated cyclic phosphate solvent electrolyte that improves upon existing ethylene carbonate, offering nonflammable properties and increased voltage tolerance. This breakthrough could lead to longer journeys in electric vehicles and improved fire safety in home energy storage.
Researchers from ETH Zürich found that single-family households with behavioral change can achieve total self-sufficiency by 2050. However, multi-family buildings require advancements in photovoltaic technology to reach the same level of energy independence.
A new study explores strategies that could help reduce emissions from the transport industry by combining economic and transport models and data from 17 regions around the world. In one scenario, countries producing only electric vehicles and implementing a carbon pricing strategy led to a global mean temperature increase of 1.82 degre...
The study found that cobalt supply is adequate in the short term, but could be affected by refining and recycling. The researchers recommend increasing efficient capacity to meet growing demand from consumer electronics and electric vehicles. By 2030, the team estimates cobalt demand will reach 235-430 thousand metric tons.
A team at Stanford University developed a machine learning-based method that accelerates battery development for electric vehicles, reducing testing times from almost two years to 16 days. The approach optimizes the charging process, finding better protocols to test and predicting battery performance based on only a few charging cycles.
Researchers have developed a new supercapacitor that combines high power density and energy density, enabling fast charging and long runtime. The device can be bent to 180 degrees without compromising performance, making it ideal for wearable electronics and electric vehicles.
Researchers from Texas A&M University developed new supercapacitor electrodes using dopamine-functionalized graphene and Kevlar nanofibers, significantly improving mechanical performance. This breakthrough paves the way for creating sturdy, stiff batteries, which could enable lighter electric vehicles and aircraft.
Skoltech researchers created potassium-based batteries with record-high energy density and impressive stability, offering an alternative to lithium-ion batteries. The batteries charge in under 10 seconds and retain their capacity after thousands of cycles.
A new study highlights the need for governments and industry to act now to develop a robust recycling infrastructure for end-of-life lithium ion batteries. The UK has an enormous opportunity to address this issue, with analysis suggesting eight gigafactories are needed by 2040 to service demand for recycled materials.
Researchers at Argonne National Laboratory have developed a new mechanism to speed up lithium-ion battery charging using concentrated light. By exposing the cathode to white light, the charging time is reduced by a factor of two without degrading battery performance.
Researchers develop self-heating battery to charge EVs in 10 minutes for 200-300 mile range, maintaining 2,500 cycles or half a million miles. Lithium plating reduces cell capacity and causes electrical spikes.
Researchers have developed a lithium ion battery design that can charge an electric vehicle in just 10 minutes, increasing its driving range. The design uses elevated temperatures to increase reaction rates and keeps the cell cool during discharge, eliminating the risk of lithium plating and improving cycle life.
The UC3M has developed a completely autonomous electric vehicle to replace combustion vehicles in the Timanfaya National Park. The minibus features level 5 autonomy, allowing it to operate without human control, and advanced AI perception systems for navigation and localization.
Researchers at Stanford University have developed a coating that overcomes some of the battery's defects, extending its life and making it safer. The coating prevents dendrites from forming, which can cause the battery to combust or create a short circuit.
A team of researchers, led by Professor Yu Zhu, has developed a novel shear-thickening electrolyte that can improve the safety of lithium ion batteries used in electric vehicles. The electrolyte becomes thicker under impact, preventing short-circuiting and fires.
Researchers found that electric vehicles can improve air quality in Houston by reducing nitrogen oxides and volatile organic compounds emitted by gasoline and diesel vehicles. The study suggests that complete electrification of transportation could prevent up to 246 premature deaths annually in greater Houston by 2040.