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Coritech Services orders Ideal Power’s bi-directional battery converters for DoD vehicle-to-grid program

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Coritech intends to install the battery converters in its bi-directional electric vehicle charging system for use in Vehicle-to-Grid (V2G) applications for the Department of Defense (DoD). All the energy runs through, and is temporarily stored in, a high-frequency AC link consisting of an inductor and capacitor. Earlier post.)

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Stanford study quantifies energetic costs of grid-scale energy storage over time; current batteries the worst performers; the need to improve cycle life by 3-10x

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A plot of ESOI for 7 potential grid-scale energy storage technologies. Credit: Barnhart and Benson, 2013. Benson from Stanford University and Stanford’s Global Climate and Energy Project (GCEP) has quantified the energetic costs of 7 different grid-scale energy storage technologies over time. Click to enlarge.

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New lithium polysulfide flow battery for large-scale energy storage

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Currently the electrical grid cannot tolerate large and sudden power fluctuations caused by wide swings in sunlight and wind. The new flow battery developed by Cui’s group has a simplified, less expensive design that presents a potentially viable solution for large-scale production. Batteries Power Generation Smart Grid'

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

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That is about three times as much power per square centimeter as other membrane-less system—a power density that is an order of magnitude higher than that of many lithium-ion batteries and other commercial and experimental energy-storage systems. Membrane-less hydrogen bromine flow battery. —Braff et al.

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Volkswagen presents status of fleet study in electromobility; latest generation of twïnDRIVE plug-in hybrid

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One of the goals of Volkswagen AG is to launch numerous plug-in hybrid cars on the market in the years 2013/2014. When powerful acceleration is required, the battery-powered E-motor and the TSI work together in the Golf Variant (boosting). Whenever necessary, the battery can also be charged via the generator.

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Audi highlights its range of electrification efforts; Q7 diesel PHEV, A7 fuel cell PHEV, BEV, 48V and more; 750 Wh/l by 2025

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While they store a high amount of energy compared to the other designs, their power output is comparatively low. With minor changes to their exterior dimensions, they can be configured specifically for maximum power output, maximum energy or a combination of both, making them ideal for a plug-in hybrid vehicle.

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How Carmakers Are Responding to the Plug-In Hybrid Opportunity

Tony Karrer Delicious EVdriven

Small long-term evaluation program, including modeling of vehicle-to-grid building benefits and economics, begun with Southern California Edison, joined by EPRI, other utilities, US DOE. Batteries not ready. Hyundai Partnering with Korean battery companies for hybrids. Establishing dealer network. No announced plans.

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