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New nanoparticle copper compound cathode could enable low-cost, long-life and high-power potassium-ion batteries for grid storage

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Yi Cui has developed nanoparticle copper hexacyanoferrate (CuHCF) battery cathode materials that demonstrate long cycle life and high power for use in grid storage applications. Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. A team at Stanford led by Prof.

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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). Coal- and natural gas-fired power plants are responsible for at least a third of those emissions.

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Pike Research forecasts worldwide grid energy storage spending to reach $22B by 2021, down from 2010 forecast of $35B

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Energy storage technologies represent an alternative to traditional grid management using generation assets such as natural gas peakers to balance the grid by adding power to it. The value of the ESG market is now measured by using the value of energy ($/kWh), not power ($/kW). Energy storage on the grid is reaching a turning point.

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PNNL team develops sodium-manganese oxide electrodes for sodium-ion rechargeable batteries

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low-cost Na-ion battery system for upcoming power and energy. low-cost Na-ion battery system for upcoming power and energy. solar and wind) with variable output to the electrical grid, grid managers require electrical energy storage systems (EES) that can accommodate large amounts of energy created at the source.

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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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published in the ACS journal Chemical Reviews , reviews in detail four stationary storage systems considered the most promising candidates for electrochemical energy storage: vanadium redox flow; sodium-beta alumina membrane; lithium-ion; and lead-carbon batteries. In their study, Yang et al. The need for storage.

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