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New solid-electrolyte interphase may boost prospects for rechargeable Li-metal batteries

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Rechargeable lithium metal batteries with increased energy density, performance, and safety may be possible with a newly-developed, solid-electrolyte interphase (SEI), according to Penn State researchers. The Office of Vehicle Technologies in the US Department of Energy and the National Science Foundation supported this work.

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Allison Transmission’s eGen Flex electric hybrid solution introduced in NYC Transit buses

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The eGen Flex system—comprising the drive unit, inverter and rechargeable energy storage system—includes full electric drive capability for up to 10 miles, depending upon duty cycle and accessory load demands. This also reduces dependence on fossil fuels at the pump, while delivering increased uptime.

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Ricardo reports significant efficiency advance in its Kinergy hermetically-sealed high-speed flywheel energy storage system; prospects for price-sensitive hybridization

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Ricardo reports that a significant improvement in the magnetic coupling and gearing system in its Kinergy hermetically-sealed high-speed flywheel energy storage device ( earlier post ) has now taken the system efficiency to better than that of a conventional geared-drive system. Click to enlarge. Kinergy prototype prepared for testing.

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Hybrid DLC-Battery Energy Storage System for Streetcars

Green Car Congress

Siemens earlier this year launched a new hybrid energy storage system for streetcars that combines a double-layer capacitor (DLC) and NiMH battery pack. Streetcars equipped with the Sitras HES hybrid energy storage system can be driven up to 2,500 meters (1.6 miles) without an overheadcontactt line (OCL).

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Capstone Receives order for 34 microturbines for Denver RTD electric bus fleet

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Two Capstone-equipped DesignLine buses have been in service for more than a year on the mall, and they have better maintenance records than the TransTeq vehicles, according to RTD officials. The DesignLine range-extended electric buses are 45 feet long, and feature an all-electric drivetrain using Li-ion batteries for energy storage.

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CalSEED awards $4.2M to early-stage clean energy innovations

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The awardees went through a rigorous process including a review with CalSEED’s curated technical advisory committee, who volunteered their time and expertise to select the most promising future clean energy technologies. rechargeable battery?technology?that the cost of energy storage?by Innovasion Labs PINC, Inc.

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Maxwell Technologies introduces ultracapacitor-based engine start module for medium-duty diesel trucks

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The ESM ULTRA 31/900 is a no-acid, lead-free energy storage solution that weighs less than one-fourth of the Group 31 lead-acid battery it replaces in the battery bay of the truck. It stays fully charged even when the truck’s lead-acid battery is as low as 9.5V; the ESM charges off the lead-acid batteries in the truck. ESM diagram.

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