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Stanford, SLAC team cages silicon microparticles in graphene for stable, high-energy anode for Li-ion batteries

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A team from Stanford University and the Department of Energy’s SLAC National Accelerator Laboratory has developed a new practical, high-energy-capacity lithium-ion battery anode out of silicon by encapsulating Si microparticles (∼1–3 µm) using conformally synthesized cages of multilayered graphene. —Li et al.

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High capacity, long-life porous nano-silicon Li-ion anode material from beach sand

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Researchers at the University of California, Riverside’s Bourns College of Engineering have synthesized a porous nano-silicon material from beach sand (SiO 2 ) via a highly scalable heat scavenger-assisted magnesiothermic—i.e., using a combination of heat and magnesium—reduction. —Favors et al. Favors et al. Batteries'

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MIT/Tsinghua high-rate aluminum yolk-shell nanoparticle anode for Li-ion battery with long cycle life and high capacity

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A team of researchers at MIT and Tsinghua University has developed a high-rate, high-capacity and long-lived anode for Li-ion batteries comprising a yolk-shell nanocomposite of aluminum core (30 nm in diameter) and TiO 2 shell (~3 nm in thickness), with a tunable interspace (Al@TiO 2 , or ATO). —Li et al.

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Kyoto team develops new cathode material for high-energy-density rechargeable magnesium batteries

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Charge–discharge profiles of ion-exchanged MgFeSiO 4. A team of researchers from Kyoto University has demonstrated ion-exchanged MgFeSiO 4 as a feasible cathode material for use in high-energy-density rechargeable magnesium batteries. The ion-exchanged MgFeSiO 4 cathode materials provide a capacity of more than 300 mAh·g ?

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UT Austin team develops new family of high-capacity anode materials: Interdigitated Eutectic Alloys

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Researchers in the Cockrell School of Engineering at The University of Texas at Austin have developed a new family of anode materials that can double the charge capacity of lithium-ion battery anodes. It is a simple, low-cost approach that can be applied to a broad range of alloy systems with various working ions such as Li, Na, or Mg.

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Stanford team develops new ultrahigh surface area 3D porous graphitic carbon material for improved energy storage

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Stanford University scientists have created a new ultrahigh surface area three-dimensional porous graphitic carbon material that significantly boosts the performance of energy-storage technologies. As a result, extensive purification is needed to achieve high-quality supercapacitor-grade AC, which substantially increases the cost.

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NETL investigating researching chemistries for large-scale battery- and supercapacitor-based grid energy storage systems

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The US Department of Energy’s National Energy Technology Laboratory (NETL) is conducting research on alternative options to reduce costs and make large-scale energy storage safer and more practical. Magnesium is much more abundant in the Earth’s crust, making it less expensive than Li by a factor of 24. Earlier post.)