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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

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Lead author Aniruddh Mohan and colleagues wanted to develop a method that evaluated the life-cycle costs and benefits for two battery-powered ridesource fleets and a gasoline-powered one. The analysis indicated that electrified fleets had 40-45% lower greenhouse gas costs per trip compared to the gasoline-powered version.

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Penn State team investigates battery requirements for eVTOL applications vs EVs

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In a paper in the journal Joule , a team from Penn State University has analyzed the primary performance metrics required for eVTOL batteries compared with electric vehicle (EV) batteries. EVTOL requirements on battery specific power and energy. Representative battery power profile during an eVTOL trip.

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Researchers Demonstrate Autonomous Underwater Vehicle With Novel Thermal Recharging Engine

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NASA, US Navy and university researchers have successfully demonstrated the first robotic underwater vehicle to be powered entirely by ocean thermal energy. Its thermal recharging engine produced about 1.7 Researchers at NASA’s Jet Propulsion Laboratory, Pasadena, Calif.; —Russ Davis, a Scripps oceanographer.

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New electrode material for solid-state batteries improves performance

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Credit: Atsushi Sakuda, Osaka Prefecture University. The invention of commercial lithium-ion batteries (LIBs) in the 1990s marked a turning point in the technological revolution. These lightweight, rechargeable batteries power most of the electronic devices we use today, from pacemakers to electric vehicles.

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Royal Academy of Engineering Report Says EV Success Depends on Low-Carbon Electricity, Universal Broadband Provision and Smart Grids

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The introduction of electric vehicles on a large scale in the UK can only have a beneficial effect on CO 2 emissions if low-carbon electricity, universal broadband provision and smart grids are in place to support the transition, according to a new report published by the UK Royal Academy of Engineering. Dr Chris Brace, Bath University.

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DOE announces $26.6M SBIR/STTR FY15 Phase 1 Release 2 awards; fuel cells, batteries, power electronics and efficient combustion engines

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Of these, 16 are vehicle-related, encompassing projects developing batteries, power electronics and improved combustion engine technology including on-board reformers, and two are specifically hydrogen fuel cell-related. The US Department of Energy (DOE) has selected 162 projects to receive about $26.6 Earlier post.) 149,999.70.

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OSU smart membrane could enable new category of high-energy, high-power energy storage for EVs

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A team at the Ohio State University has developed a membrane that regulates bi-directional ion transport across it as a function of its redox state and that could be used as a programmable smart membrane separator in future supercapacitors and redox flow batteries. plugin EVs to Tesla’s 85 kWh battery pack).