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Texas study finds PHEV use could increase ozone at night, decrease ozone during the day

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A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours.

Ozone 218
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UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

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These emissions are independent of the vehicle energy/propulsion system and therefore applicable to all road vehicle types including those with battery-electric powertrains. —Cliff et al. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g.,

Emissions 397
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Embark and HP introduce EV drayage within autonomous truck operations

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Adopting both long-haul autonomous trucks and EV drayage enables HP to remove up to 50,000 tons of carbon dioxide and other pollutants from its distribution network over the next ten years, according to preliminary research by Embark.

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U Maryland team devises new method to stabilize high-capacity Si anodes for Li-ion batteries: interfacial oxygen

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Interfacial oxygen between the silicon and carbon improves electrode performance. Researchers at the University of Maryland have improved the cycle life of silicon/carbon matrix-composite electrodes by 300%, even at mass loadings, solely by the chemical tailoring of the interface between the silicon and the carbon with atomic oxygen.

Maryland 255
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Study: 25% EV adoption would save US $17B annually from avoided climate change & pollution damages

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Vehicle electrification in the United States could prevent hundreds to thousands of premature deaths annually while reducing carbon emissions by hundreds of millions of tons. Results show that in more aggressive scenarios—i.e.,

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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). Across scenarios, we found the more cars that transitioned to electric power, the better for summertime ozone levels.

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Life cycle analysis of three battery chemistries for PHEVs and BEVs; environmental impacts higher than expected

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Flow diagram of the battery system, defined by the functional unit of 50 MJ stored and delivered to the powertrain. Researchers from the Norwegian University of Science and Technology (NTNU) have performed life cycle assessments (LCA) of three batteries for plug-in hybrid (PHEV) and full performance battery electric (BEV) vehicles.