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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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Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. Stationary energy storage systems that can operate for many cycles, at high power, with high round-trip energy efficiency, and at low cost are required. Cost is a greater concern. —Colin Wessells.

Low Cost 304
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New Na-ion battery combining intercalation and conversion could be promising low-cost energy storage system

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A team led by Yang-Kook Sun at Hanyang University (South Korea), Bruno Scrosati at University of Rome Sapienza, and Khalil Amine at Argonne National Laboratory reports the development of a sodium-ion battery based on a carbon-coated Fe 3 O 4 anode, Na[Ni 0.25 Credit: ACS, Oh et al. Click to enlarge. V versus Na/Na +. Mn 0.25 ]O 2.

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New aqueous rechargeable lithium battery shows good safety, high reliability, high energy density and low cost; another post Li-ion alternative

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Researchers from Fudan University in China and Technische Universität Chemnitz in Germany have developed an aqueous rechargeable lithium battery (ARLB) using coated Li metal as the anode. It presents an energy density of 446 Wh kg -1 together with excellent cycling performance. mol l -1 Li 2 SO 4 aqueous solution as electrolyte.

Li-ion 281
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New catalysts convert ethanol to butanol with high selectivity; potential low-cost upgrade for ethanol plants

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Researchers at the University of Bristol (UK) have developed a new family of catalysts that enables the conversion of ethanol into n-butanol—a higher alcohol with better characteristics for transportation applications than ethanol—with selectivity of more than 95% at good conversion.

Convert 236
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BASF and Volkswagen present Science Award Electrochemistry to Dr. Vanessa Wood for work on Li-ion batteries

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Dr. Wood developed a new method for image analysis for this purpose, upon which she created a new low-cost technique that is compatible with current manufacturing processes. The award was presented in a ceremony at Stanford University by Dr. Kurt Bock, Chairman of the Board of Executive Directors of BASF SE, and Prof.

Li-ion 244
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Researchers combine AI and radar to allow vehicles to spot hazards around corners

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Credit: Princeton University. The radar sensors are also relatively low-cost, especially compared to lidar sensors, and scale to mass production. —Felix Heide, an assistant professor of computer science at Princeton University. Image courtesy of the researchers.

Vehicles 505
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MIT team outlines path to low-cost solar-to-fuels devices; the artificial leaf

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Considering recent cost reductions of Si solar cells, this paper offers a path to the construction of low cost solar-to-fuels devices. The approach presented by the team allows for each component of the artificial leaf to be tested individually, then combined. —Winkler et al.

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