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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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Rechargeable membrane-less hydrogen bromine flow battery shows high power density

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MIT researchers have engineered a new rechargeable, membrane-less hydrogen bromine laminar flow battery with high power density. The membrane-less design enables power densities of 0.795?W?cm 2 at room temperature and atmospheric pressure, with a round-trip voltage efficiency of 92% at 25% of peak power.

Recharge 291
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BHP orders two Wabtec FLXdrive battery-electric locomotives

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Wabtec Corporation announced an order from BHP Western Australia Iron Ore (WAIO) for two FLXdrive battery locomotives ( earlier post ). The deal builds momentum in the market for the world’s first 100%, battery-powered locomotive and supports the Australia-based natural resource company’s plan to decarbonize its rail network.

Batteries 199
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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.

Batteries 243
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New electrode material for solid-state batteries improves performance

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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. Credit: Atsushi Sakuda, Osaka Prefecture University.

Li-ion 536
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Prototype electric New Flyer transit bus powered by 120 kWh MHI MLiX Li-ion pack in operational testing in Manitoba, Canada

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An all-electric, battery-powered prototype demonstration bus under joint development by Mitsubishi Heavy Industries, Ltd. The 40-foot “E-Bus” is based on New Flyer’s 40-foot Xcelsior heavy-duty transit bus and is powered by a 120 kWh lithium-ion rechargeable battery pack developed by MHI. Earlier post.)

Canada 294
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Siemens and Fjellstrand partner on battery-electric car ferry

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The ship’s batteries will be recharged in the breaks between crossings, a procedure which only takes 10 minutes. In normal conditions, operating at a speed of 10 knots, battery power of 400 kW (536 hp) will suffice. To deal with this problem, batteries have been installed at each port.