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New halogen conversion-intercalation chemistry enables high-energy density aqueous Li-ion battery

Green Car Congress

developed a halogen conversion–intercalation chemistry in graphite that produces composite electrodes with a capacity of 243 mAh g -1 (for the total weight of the electrode) at an average potential of 4.2 volts versus Li/Li +. Proposed conversion–intercalation chemistry. Yang et al. —Yang et al.

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UVA researchers devise method for converting retired Li-ion anodes to graphene and GO

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Researchers at the University of Virginia (UVA) have devised a process for converting retired Li-ion battery anodes to graphene and graphene oxide (GO). So far, only 1% of end-of-life Li-ion batteries have been recycled. Here, graphite powders from end-of-life Li-ion battery anodes were used to fabricate graphene. .

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High capacity germanium oxide/germanium nanocomposite for Li-ion anode material

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Korea, have developed a germanium oxide/germanium nanocomposite (GeO 2 /Ge/C) anode material for Li-ion batteries that shows a high capacity of up to 1860 mAh/g at 1 C (2.1 In addition, there is widespread belief that, during the first lithiation, Li 2 O is irreversibly formed. Li+ per GeO 2 (1126 mAh/g) compared to 8.4

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Benchmark: China dominates Li-ion battery supply chain

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China dominates the global Li-ion battery supply chain to the extent that removing the country in favor of European or North American alternatives will be difficult, according to analysis by Benchmark Minerals Intelligence. —Albert Li, an analyst at Benchmark.

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Study shows paper-folding concepts can compact a Li-ion battery and increase its areal energy density

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Researchers at Arizona State University have shown that paper-folding concepts can be applied to Li-ion batteries in order to realize a device with higher areal energy densities. These initial results showed that the Li-ion batteries can still exhibit good electrochemical performance even after multiple folds, they said.

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KIT researchers develop fluoride-ion batteries; potential for much higher energy densities than conventional Li-ion batteries

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Setup of the fluoride-ion battery: A fluoride-containing electrolyte separates the metal anode from the metal fluoride cathode. Metal fluorides may be applied as conversion materials in lithium-ion batteries. Instead of the lithium cation (as in Li-ion batteries), the fluoride anion takes over charge transfer.

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Leyden Energy providing Li-ion cells with imide electrolyte for electric Dream Car

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Li-ion battery manufacturer Leyden Energy provided its high energy-density, high-performance Li-ion battery cells for SSI Racing’s electric Dream Car at the annual Toyota Grand Prix of Long Beach. Li-Ion battery has 2,200 mAh capacity with a cycle life of more than 1,000 charge/discharge cycles.

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