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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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New class of coordination polymers for high-performance Li-, Na- and K-ion storage

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Coordination compounds are molecules that possess a metal center bound to ligands (atoms, ions or molecules that donate electrons to the metal); these complexes can be neutral or charged. V in lithium-, sodium-, or potassium-based cells. An open-access paper on their work is published in the RSC journal Energy & Environmental Science.

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UP Catalyst CO2-derived carbon nanotube electrode material boosts cycle life in Na-ion batteries

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Tests conducted by Titirici Group , a multidisciplinary research team based at Imperial College London, have found that a novel carbon nanotube electrode material derived from CO 2 —produced by Estonian nanotech company UP Catalyst ( earlier post )—enhances the cyclability of sodium-ion batteries.

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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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CATL launches “condensed battery” with an energy density of up to 500 Wh/kg for aircraft; automotive version this year

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At Auto Shanghai, Chinese battery giant CATL launched what it calls a “condensed battery”—a type of semi-solid state cell with an energy density of up to 500 Wh/kg. CATL says the cell can achieve high energy density and high level of safety at the same time, opening up a new electrification scenario for passenger aircraft.

Energy 435
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Chalmers team develops graphite-like anode for Na-ion batteries; Janus graphene

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Researchers at Chalmers University of Technology, Sweden, have developed a nanometric graphite-like anode for sodium ion (Na + storage), formed by stacked graphene sheets functionalized only on one side, termed Janus graphene. The estimated sodium storage up to C 6.9 100 to 150 mA h g ? 100 to 150 mA h g ?1

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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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