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PNNL study outlines requirements for grid storage, reviews four electrochemical energy storage systems: vanadium redox flow, Na-beta, Li-ion and lead-carbon

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note the potential of each technology and explain what advances must occur with each if they’re ultimately to be deployed. High discharge rates or high current densities are important, although the state-of-charge (SOC) of the storage system typically will not move over a wide range. 15 years) and a long cycle life (e.g.,

Li-ion 231
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Third-Generation VW Sharan Van Will Offer Fuel Consumption As Low As 5.5 L/100km (43 mpg US); Start-Stop and Battery Regeneration

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For engines ranging up to 170 PS in power, a BlueMotion Technology pack is implemented with a start-stop system and battery regeneration (recovery of kinetic energy by storing it in the battery). Depressing the clutch (or with DSG simply releasing the brake),re-starts the engine and clears the “Start Stop” text. Start-Stop system.

MPG 210