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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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Advanced lithium ion batteries, sodium sulfur (NaS) batteries, and compressed air energy storage (CAES) are other key technologies that will be utilized for bulk storage applications during the forecast period. Balancing Li-ion capacity with market opportunities. Commenting on recent reports of Li-ion overcapacity (e.g.

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OSU smart membrane could enable new category of high-energy, high-power energy storage for EVs

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A team at the Ohio State University has developed a membrane that regulates bi-directional ion transport across it as a function of its redox state and that could be used as a programmable smart membrane separator in future supercapacitors and redox flow batteries. — Herya and Sundaresan.