A research group is now presenting an advance in so-called massless energy storage -- a structural battery that could halve the weight of a laptop, make the mobile phone as thin as a credit...
In recent years, a large amount of NEVs patent documents has also been generated around the technical issue of improving the energy conversion efficiency of new energy vehicles and reducing energy consumption and pollution emissions. This makes several scholars explore the technology development history and future trends of NEVs using patent …
With global concerns over emissions from non-renewable sources and its dwindling global supplies. Optimization of our energy usage is highly important. Converting energy to various forms is usually an imperfect process with energy being wasted. Vehicle''s convert on-board stored energy to a kinetic form to drive a vehicle. Understanding the sources …
Energy Security. The United States became a net exporter of petroleum in 2020 with exports surpassing imports, although imports of 8.32 million barrels per day in 2022 remained an important part of balancing supply and demand for domestic and international markets. Overall, the transportation sector accounts for approximately 30% of total U.S. energy needs and 70% …
Energy Efficiency and Renewable Energy (EERE), supports early-stage research to significantly reduce the cost of EV batteries while reducing battery charge time and increasing EV driving range. Over the past 10 years, VTO research and development (R&D) has lowered the cost of EV battery packs by 80% to $197/kWh in 2018.5 Current
1 Introduction. Global energy consumption is continuously increasing with population growth and rapid industrialization, which requires sustainable advancements in both energy generation and energy-storage technologies. [] While bringing great prosperity to human society, the increasing energy demand creates challenges for energy resources and the …
A 10% reduction in vehicle weight can result in a 6%-8% fuel economy improvement, since it takes less energy to accelerate a lighter object than a heavier one. Using lightweight components and high-efficiency engines enabled by advanced materials in one quarter of the U.S. fleet could save more than 5 billion gallons of fuel annually by 2030.
Global energy-related carbon dioxide emissions rose by 1% in 2022, as the growth of solar, wind, electric vehicles (EVs), heat pumps, and energy efficiency helped to limit the impacts of increased use of coal and oil (IEA 2023).Electric vehicles (EVs) have attracted more attention from decision makers and consumers due to their potential to reduce …
When cars, planes, ships or computers are built from a material that functions as both a battery and a load-bearing structure, the weight and energy consumption are radically reduced. A research ...
The power battery is an important component of new energy vehicles, and thermal safety is the key issue in its development. During charging and discharging, how to enhance the rapid and uniform heat dissipation of power batteries has become a hotspot. This paper briefly introduces the heat generation mechanism and models, and emphatically …
6 · Climate change is one of the major issues of worldwide concern. To reduce greenhouse gas emissions, vehicles in the transportation field are undergoing a new energy transition, and batteries are being used on a broad scale. Battery performance (such as efficiency, capacity, lifespan, and safety) is greatly affected by extreme temperature ...
If you''re in the market for a new car, the answer could be an electric vehicle. ... They also are very energy efficient and can travel four times as far as a traditional car given the same amount of energy. ... Opting to drive an EV is a great option for drivers looking to reduce their carbon footprint throughout the country and cut back on ...
EV batteries are heavy. A 60-100 kWh battery pack can weigh anywhere between 900 to 1,500 pounds—about 20–30% of an EV''s weight. The larger the battery (in terms of energy capacity), the heavier it tends to be, which is why efforts to reduce battery weight or improve energy density—getting more power out of a smaller and lighter battery—are so …
Reducing Vehicle Weight and Improving U.S. Energy Efficiency Using Integrated Computational Materials Engineering September 2012 JOM: the journal of the Minerals, Metals & Materials Society 64(9)
China accounted for nearly 60% of all new electric car registrations globally in 2023. The share of electric cars in total domestic car sales reached over 35% in China in 2023, up from 29% in 2022, thereby achieving the 2025 national …
Battery manufacturers develop new battery packing formats to improve energy density and safety. Under the constraints of cost and battery energy density, the measure to improve driving range is to reduce vehicle weight [[22], [23], [24], [25]].
Where the Energy Goes: Electric Cars. Electric vehicles (EVs) are more efficient than their gasoline-powered counterparts. An EV electric drive system is only responsible for a 15% to 20% energy loss compared to 64% to 75% for …
A research group at Chalmers University of Technology in Sweden is now presenting a world-leading advance in so-called massless energy storage – a structural battery that could halve the weight of a laptop, make the mobile phone as thin as a credit card or increase the driving range of an electric car by up to 70 percent on a single charge.
Among rechargeable batteries, Lithium-ion (Li-ion) batteries have become the most commonly used energy supply for portable electronic devices such as mobile phones and laptop computers and portable handheld power tools like drills, grinders, and saws. 9, 10 Crucially, Li-ion batteries have high energy and power densities and long-life cycles ...
The Vehicle Technologies Office focuses on reducing the cost, volume, and weight of batteries for plug-in electric vehicles. ... and weight of batteries, while simultaneously improving the vehicle batteries'' performance (power, energy, and durability) and ability to tolerate abuse conditions. ... VTO''s Batteries and Energy Storage subprogram ...
U.S. Department of Energy - Energy Efficiency and Renewable Energy ... They also have a high power-to-weight ratio, high energy efficiency, good high-temperature performance, long life, and low self-discharge. ... Electric-drive …
The large-scale introduction of electric vehicles into traffic has appeared as an immediate necessity to reduce the pollution caused by the transport sector. The major problem of replacing propulsion systems based on internal combustion engines with electric ones is the energy storage capacity of batteries, which defines the autonomy of the electric vehicle. …
Accelerating the deployment of electric vehicles and battery production has the potential to provide terawatt-hour scale storage capability for renewable energy to meet the …
Engineers at PNNL have increased the conductivity of copper wire by 5 percent. Higher conductivity means that less copper is needed for the same efficiency, which can reduce the weight of electric vehicles. PNNL recently worked with General Motors to test out the copper wire in EV motor components.
While any vehicle can use lightweight materials, they are especially important for hybrid electric, plug-in hybrid electric, and electric vehicles. Using lightweight materials in these vehicles can offset the weight of power systems such as batteries and electric motors, improving the efficiency and increasing their all-electric range.
Reducing Vehicle Weight and Improving U.S. Energy Efficiency Using Integrated Computational Materials Engineering September 2012 JOM: the journal of the Minerals, Metals & Materials Society 64(9)
The new process increases the energy density of the battery on a weight basis by a factor of two. It increases it on a volumetric basis by a factor of three. Today''s anodes have copper current ...
The applications of lithium-ion batteries (LIBs) have been widespread including electric vehicles (EVs) and hybridelectric vehicles (HEVs) because of their lucrative characteristics such as high energy density, long cycle life, environmental friendliness, high power density, low self-discharge, and the absence of memory effect [[1], [2], [3]] addition, …
In the specific case of electric cars, most of the weight resides in the battery pack; the introduction of devices such as fuel cells [39] or hybrid powertrains, despite the increase in complexity, would make it possible to reduce the capacity, thus the size and weight, of the battery pack without affecting the range.
To reduce vehicle weight, which also offers advantages beyond increased fuel efficiency, such as improved drivability and (for trucks) carrying larger loads, an interest in replacing low-carbon (mild) steel grew toward the end of the century. ... A 2017 report from the DOE Office of Energy Efficiency & Renewable Energy by a multi-institutional ...
Where the Energy Goes: Electric Cars. Electric vehicles (EVs) are more efficient than their gasoline-powered counterparts. An EV electric drive system is only responsible for a 15% to 20% energy loss compared to 64% to 75% for a gasoline engine. EVs also use regenerative braking to recapture and reuse energy that normally would be lost in braking and waste no energy idling.
Chassis layout of new energy vehicle hub electric models [2]. The battery is integrated into the chassis of the new energy-pure electric car, which has a higher percentage of unsprung mass, a ...
EVs fed by renewable energy show overall well-to-wheel efficiency of up to 70 % compared to that of 11 % to 27 % of gasoline vehicles and 25 % to 37 % of diesel vehicles. …
A groundbreaking development in massless energy storage has been achieved by a research group at Chalmers University of Technology in Sweden. Their innovative structural battery has the potential to reduce the weight of laptops by half, make mobile phones as thin as credit cards, and boost the driving range of electric cars by up to 70% on a single charge.
New energy vehicles (NEVs) are considered to ease energy and environmental pressures. China actively formulates the implementation of NEVs development plans to promote sustainable development of the automotive industry. In view of the diversity of vehicle pollutants, NEV may show controversial environmental results. Therefore, this paper …
With the rapid growth of the global population, air pollution and resource scarcity, which seriously affect human health, have had an increasing impact on the sustainable development of countries [1].As an important sustainable strategy for alleviating resource shortages and environmental degradation, new energy vehicles (NEVs) have received …
