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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. V for Li-, Na- and K-ion batteries. V for Li-, Na- and K-ion batteries.

Li-ion 273
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Researchers show that inherent lithium ions in bioderived borate polymer enhance extreme fast charging capability in graphite anodes

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In order to enable fast-charging ability in batteries, researchers have attempted to enhance the mass transfer of electrolytes and charge transfer in electrodes, with extensive research carried out on the former compared to the latter. Generally, when charging surpasses rate of intercalation, Li + plating occurs on graphite electrodes.

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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.

Carbon 366
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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.

Li-ion 418
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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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ARPA-E awards $42M to 12 projects for advanced EV batteries; EVs4ALL program

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The US Department of Energy (DOE) will award $42 million to 12 projects to strengthen the domestic supply chain for advanced batteries that power electric vehicles (EVs). The EVs4ALL program is managed by DOE’s Advanced Research Projects Agency-Energy (ARPA-E). Award amount: $3,198,085). Award amount: $2,120,120).

Li-ion 256