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U Alberta team develops hybrid sodium-ion capacitor; intermediate in energy & power between ultracaps and batteries

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A team led by researchers from the University of Alberta (Canada) Scientists has developed a hybrid sodium-ion capacitor (NIC) using active materials in both the anode and the cathode derived entirely from peanut shells—a green and highly economical waste globally generated at more than 6 million tons per year. doi: 10.1039/C4EE02986K.

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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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With regard to overall storage capability and potential for further fuel efficiency improvements, the demand for larger battery systems based on lithium, nickel and sodium will continue to grow through the increased market penetration of vehicles with higher levels of hybridization and electrification. Sodium-nickel chloride batteries.

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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). When demand is high, the water is released through turbines that generate electricity. —Charles Barnhart.

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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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However, while a number of potential technologies for EES exist, and some have been applied or demonstrated, they face either challenges in meeting the performance and economic matrix for the stationary applications, or limits in environment, site selection, and so on, Yang et al. In their study, Yang et al. Credit: ACS, Yang et al.

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Fraunhofer develops new dry-coating process for battery electrodes

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This coating contains the active components that are responsible for storing energy. Removing toxic solvents and long, energy-intensive drying machines from the process benefits the environment. It could equally be used on lithium-ion cells as on lithium-sulfur or sodium-ion cells. We are even looking at solid-state batteries.

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Fraunhofer researchers develop new low-cost dry-film electrode production process

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BroadBit uses it to produce new types of sodium-ion batteries. First, they mix the active materials, intended later to release the stored energy, with additives to create a paste. In order to protect operators and the environment, elaborate precautions for occupational safety and reprocessing are necessary.

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ARPA-E awards $43M to 19 energy storage projects to advance electric vehicle and grid technologies

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This latest round of ARPA-E projects seek to address the remaining challenges in energy storage technologies, which could revolutionize the way Americans store and use energy in electric vehicles, the grid and beyond, while also potentially improving the access to energy for the US. environment of a lithium-ion battery in real-time.