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New lithium polysulfide flow battery for large-scale energy storage

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Researchers from the US Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a new lithium/polysulfide (Li/PS) semi-liquid (flow) battery for large-scale energy storage, with lithium polysulfide (Li 2 S 8 ) in ether solvent as a catholyte and metallic lithium as an anode.

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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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Using a new metric—“Energy Stored on Invested, ESOI”—they concluded that batteries were the worst performers, while compressed air energy storage (CAES) performed the best, followed by pumped hydro storage (PHS). The five battery technologies fared much worse. PHS followed at 210.

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The Net-Zero Neighborhood: Advanced Energy Storage and Highly Efficient Photovoltaics Take Transportation Off the Gasoline Grid and Residential Off the Electric Grid

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The NZN concept relies on high energy density storage systems incorporated into the local grid, as well as efficient photovoltaic generation. batteries); the creation of grid-enabled consumer-side energy generation appliances; and a robust set of standards and protocols. NZN can integrate with the centralized grid. Source: Gil Weigand.

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

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Volkswagen, for example, has installed one of the highest performance wind power systems in the world at its German plant in Emden; it already supplies one-third of the factory’s energy requirements. In parallel, more and more electricity is being generated from solar and water power. sunshine duration, wind strength).

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Volkswagen Group shows 3 hydrogen fuel cell concepts at LA Show: Audi A7 Sportback h-tron; Golf Sportwagen HyMotion; Passat HyMotion

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This is the opposite of the approach taken by Toyota with its Mirai fuel cell vehicle ( earlier post ) and Honda with its new FCV Concept ( earlier post ). Fuel cell technology is running in comepetition with long-range battery electric vehicles. The h-tron concept car shows that we have also mastered fuel cell technology.

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New Gen4 smart electric drive; electrification of all smart models

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Powered by a 17.6 kWh Li-ion battery pack, the electric drive has a range (NEDC) of approximately 160 km (99 miles); maximum speed is electronically limited to 130 km/h (81 mph) to maximize the range. Combined cycle power consumption is 12.9 kWh/100 km.

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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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TDI quattro plug-in hybrid ( earlier post ); the Audi A7 h-tron quattro fuel cell vehicle ( earlier post ); the Audi e-tron quattro concept battery-electric SUV ( earlier post ); the Audi TT clubsport turbo concept ( earlier post ); the Audi RS 5 TDI competition concept ( earlier post ); and the Audi R18 e-tron quattro ( earlier post ).

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