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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 Na is comparable to graphite for standard lithium ion batteries.

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Univ. of Maryland team develops promising sodium-ion cathode material: FePO4/nanotube composite

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Researchers at the University of Maryland have developed a nanocomposite material of amorphous, porous FePO 4 nanoparticles electrically wired by single-wall carbon nanotubes as a potential cathode material for sodium-ion batteries (SIBs). SWNT composite is a promising cathode material for viable sodium-ion batteries. C rate (10 mA/g).

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Hollow carbon nanowires show high capacity and cycle life as anodes for sodium-ion batteries; insight into Na-ion insertion-extraction mechanism

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The researchers attributed the good sodium-ion insertion properties to the short diffusion distance in the HCNWs and the large interlayer distance (0.37 They investigated sodium ion insertion?extraction Saraf, Zhengguo Yang, and Jun Liu (2012) Sodium Ion Insertion in Hollow Carbon Nanowires for Battery Applications.

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Xcel Terms First Phase of Sodium-Sulfur Battery Wind Energy Storage Test Project Successful

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In October 2008, Xcel began testing a one-megawatt sodium-sulfur (NaS) battery ( earlier post ) to demonstrate its ability to store wind energy and move it to the electricity grid when needed. The battery installation is connected to a nearby 11-megawatt wind farm owned by Minwind Energy, LLC. A final report is expected in summer 2011.

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New high-power, high-capacity, long-life sodium battery

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A team from the Max Planck Institute for Solid State Research in Stuttgart and the University of Science and Technology of China, Hefei, has developed a high-power, high-capacity sodium battery with 96% capacity retention after 2,000 cycles. 2016), “High Power–High Energy Sodium Battery Based on Threefold Interpenetrating Network.”

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Altris presents high-capacity Prussian White cathode material for Na-ion batteries; 160 mAh/g

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Swedish sodium-ion battery developer Altris presented a pure Prussian White cathode material with a capacity of 160 mAh/g, making it the highest capacity declared to date. Prussian White is a framework material consisting of sodium, iron, carbon and nitrogen (Na x Fe[Fe(CN) 6 ] with x>1.9). Earlier post.) Earlier post.)

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Berkeley Lab team uses high-entropy mechanism to boost ionic conductivity in solid electrolyte

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Experiments verify that high entropy leads to orders-of-magnitude higher ionic conductivities in lithium (Li)–sodium (Na) superionic conductor (Li-NASICON), sodium NASICON (Na-NASICON), and Li-garnet structures, even at fixed alkali content. —Zeng et al.

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