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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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A plot of ESOI for 7 potential grid-scale energy storage technologies. 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. Credit: Barnhart and Benson, 2013. Click to enlarge.

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Report: VW Group to decide how to proceed with Quantumscape solid state energy storage by July

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Bloomberg reports that the Volkswagen Group will decide by July how to proceed with solid state energy storage technology under development by Quantumscape ( earlier post) , citing Prof. The all solid-state system would enable high energy density, high power density, and reversibility of a lithium-air battery, according to the claims.

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

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Described in a paper published in the RSC journal Energy & Environmental Science , the smart membrane separator could enable the design of a new category of rechargeable/refillable energy storage devices with high energy density and specific power that would overcome the contemporary limitations of electric vehicles.

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Industry study finds lead-acid to remain most wide-spread automotive energy storage for foreseeable future; new chemistries continue to grow

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The study, which provides a joint industry analysis of how different types of batteries are used in different automotive applications, concludes that lead-based batteries will by necessity remain the most wide-spread energy storage system in automotive applications for the foreseeable future. Lithium-ion batteries.

Lead Acid 304
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New hydrogen storage material could enable smaller, cheaper, more energy dense systems for vehicles; Kubas binding

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It could enable the design of tanks that are smaller, cheaper, more convenient and energy dense than existing hydrogen fuel technologies, and significantly out-perform battery-powered vehicles. A paper on their work is published in the journal Energy and Environmental Science. —Morris et al. Leah Morris, James J.

Hydrogen 400
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PNNL team finds that new electrolyte mix increases energy storage capacity of vanadium redox batteries by 70%

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Researchers at the Department of Energy’s Pacific Northwest National Laboratory (PNNL) have found that adding hydrochloric acid to the sulfuric acid electrolyte typically used in vanadium redox flow batteries increased the batteriesenergy storage capacity by 70% and expanded the temperature range in which they operate.