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New high energy, highly stable cathode for sodium-ion batteries

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Researchers in South Korea have developed a novel high-energy cathode material, Na 1.5 F 0.7 , for sodium-ion (Na-ion) batteries (NIBs). This new material provides an energy density of 600 Wh kg –1 , the highest value among Na-ion cathodes. The larger Na + ion as compared to the Li + ion (1.02

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PNNL: single-crystal nickel-rich cathode holds promise for next-generation Li-ion batteries

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Scientists at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) report new findings about how to make a single-crystal, nickel-rich cathode hardier and more efficient. Researchers are working on ways to store more energy in the cathode materials by increasing nickel content. —Bi et al.

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PNNL team develops electrolyte for high-voltage sodium-ion battery with extended longevity

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Cheap and abundant, sodium is a promising candidate for new battery technology. However, the limited performance of sodium-ion batteries has hindered large-scale application. A paper on the work appears in Nature Energy. V—higher than most sodium-ion batteries previously reported. —Jin et al.

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WSU, PNNL researchers develop viable sodium battery

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A paper on their work is published in the journal, ACS Energy Letters. Although O3-layered metal oxides are promising cathode materials for high-energy Na-ion batteries, they suffer from fast capacity fade. The WSU-PNNL team developed a high-performance O3-NaNi 0.68 The cathode can deliver a high specific capacity of ?196

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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. Scanned from 1.5–4.2

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KAUST team devises electrically-driven membrane process for seawater lithium mining

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ppm) with a nominal Li/Mg selectivity >45 million. An open-access paper on their work is published in the RSC journal Energy & Environmental Science. ppm) and an abundance of interfering ions (i.e., 13000 ppm of sodium, magnesium, calcium, and potassium ions, among others). —Li et al. to 9013.43

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Study identifies halogen-free superhalogen electrolytes for Li-ion batteries

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Most electrolytes currently used in Li-ion batteries contain halogens, which are toxic. An in-depth study based on first-principles calculations by researchers at Virginia Commonwealth University has shown that the anions of commercially available electrolytes for Li-ion batteries are all superhalogens. —Giri et al.

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