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New solid-electrolyte interphase may boost prospects for rechargeable Li-metal batteries

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Rechargeable lithium metal batteries with increased energy density, performance, and safety may be possible with a newly-developed, solid-electrolyte interphase (SEI), according to Penn State researchers. —Donghai Wang, professor of mechanical and chemical engineering and corresponding author. Credit: Donghai Wang,Penn State.

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Stanford team develops sodium-ion battery with performance equivalent to Li-ion, but at much lower cost

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Stanford researchers have developed a sodium-ion battery (SIB) that can store the same amount of energy as a state-of-the-art lithium ion, at substantially lower cost. Thus, further research is required to find better sodium host materials. The sodium salt makes up the cathode; the anode is made up of phosphorous.

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Faradion demonstrates proof-of-concept sodium-ion electric bike

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British battery R&D company Faradion has demonstrated a proof-of-concept electric bike powered by sodium-ion batteries at the headquarters of Williams Advanced Engineering, which collaborated in the development of the bike. Sodium-ion intercalation batteries—i.e., Oxford University was also a partner. Earlier post.)

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U Waterloo team identifies key reaction in sodium-air batteries; implications for improving Li-air

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Chemists at the University of Waterloo have identified the key reaction that takes place in sodium-air batteries. Understanding how sodium-oxygen batteries work has implications for developing the more powerful lithium-oxygen battery, which has been proposed by some as the “holy grail” of electrochemical energy storage.

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Carnegie Mellon researchers develop semi-liquid lithium metal anode for use with solid electrolytes

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Researchers from Carnegie Mellon University’s Mellon College of Science and College of Engineering have developed a semiliquid lithium metal-based anode (SLMA) that represents a new paradigm in battery design for solid electrolyte batteries. The interdisciplinary research team published their findings in the current issue of Joule.

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Goodenough and UT team report new strategy for all-solid-state Na or Li battery suitable for EVs; plating cathodes

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lithium, sodium or potassium) on a copper–carbon cathode current collector at a voltage of more than 3.0 Traditional rechargeable batteries use a liquid electrolyte and an oxide as a cathode host into which the working cation of the electrolyte is inserted reversibly over a finite solid-solution range. Resources. Grundish, A.

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Researchers devise electrode architectures to prevent dendrite formation in solid-state batteries

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So far, the current densities that have been achieved in experimental solid-state batteries have been far short of what would be needed for a practical commercial rechargeable battery. In a second version, the team introduced a very thin layer of liquid sodium potassium alloy in between a solid lithium electrode and a solid electrolyte.

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