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UCSD researchers improve method to recycle and renew used cathodes from Li-ion batteries via eutectic molten salts

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Researchers at the University of California San Diego have improved their recycling process that regenerates degraded cathodes from spent lithium-ion batteries. Illustration of the process to restore lithium ions to degraded NMC cathodes using eutectic molten salts at ambient pressure. —Zheng Chen.

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

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High-energy nickel (Ni)–rich cathode will play a key role in advanced lithium (Li)–ion batteries, but it suffers from moisture sensitivity, side reactions, and gas generation. The gliding occurs as the battery charges and discharges—lithium ions depart and return to cathode, straining the crystal ever so slightly each time.

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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. From every 3.7

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New long-duration, extended capacity Na-Al battery design for grid storage

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The new sodium-based molten salt battery uses two distinct reactions. The team previously reported a neutral molten salt reaction. The new discovery shows that this neutral molten salt can undergo a further reaction into an acidic molten salt. Resources J. Mark Weller, Minyuan M.

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Report: Sumitomo and Kyoto University developing lower temperature molten-salt battery; about 10% the cost of Li-ion

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in partnership with Kyoto University, has developed a lower temperature molten-salt rechargeable battery that promises to cost only about 10% as much as lithium ion batteries. Molten-salt batteries use highly conductive molten salts as an electrolyte, and can offer high energy and power densities.

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Silicon nanoparticles show high capacity and cycling stability as Li-ion anode

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A team at the University of Science and Technology of China (USTC) reports a new method for the synthesis of polycrystalline silicon nanoparticles for use as anode materials in Li-ion batteries in a paper in the journal Angewandte Chemie. AlCl 3 not only acts as molten salt, but also participates in the reaction.

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Lux: Li-ion dominating grid storage market with 90% of 2014 proposals

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Lithium-ion (Li-ion) batteries have become the dominant new technology in grid storage, capturing a 90% share of systems proposed last year, according to analysts at Lux Research. Li-ion accounted for 419 MW and 1,555 MWh of proposed storage systems in 2014. LFP, NMC are the leading Li-ion cathodes.

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