Electrochemical impedance spectroscopy shows how solid-state lithium metal batteries degrade

20-Sep-2022

Researchers from Tokyo Metropolitan University have demonstrated that electrochemical impedance spectroscopy (EIS) can be a powerful non-destructive tool to study the degradation mechanisms of all-solid-state lithium metal batteries. They studied ceramic-based all-solid-state Li metal batteries ...

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Whisker-thin nanofilaments trail bubbles to grow

28-Jun-2022

Scientists from Tokyo Metropolitan University have discovered the mechanism behind the rapid growth of ultra-thin nanowires or “whiskers” in organic compounds. Nanowires are both a desirable technological innovation and a hazard when they short electronics: understanding how they grow is crucial ...

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Quasi-solid-state-electrodes realize a significant reduction in interfacial resistance

22-Mar-2022

Researchers from Tokyo Metropolitan University have developed a new quasi-solid-state cathode for solid-state lithium metal batteries, with significantly reduced interfacial resistance between the cathode and a solid electrolyte. By adding an ionic liquid, their modified cathode could maintain ...

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Mechanistic insights into state-of-the-art iron -based catalysts

08-Mar-2022

Researchers from Tokyo Metropolitan University have discovered key clues behind the workings of “single-atom” catalysts based on iron-pyridine sites in a carbon matrix. They firstly developed a new, simple synthesis method for a catalyst that activate peroxymonosulfate, highly effective in ...

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Hemispherical array of ultrasound transducers lifts objects off reflective surfaces

27-Jul-2021

Researchers from Tokyo Metropolitan University have developed a new technology which allows non-contact manipulation of small objects using sound waves. They used a hemispherical array of ultrasound transducers to generate a 3D acoustic fields which stably trapped and lifted a small polystyrene ...

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04-Dec-2019

Scientists from Tokyo Metropolitan University have used aligned "metallic" carbon nanotubes to create a device which converts heat to electrical energy (a thermoelectric device) with a higher power output than pure semiconducting carbon nanotubes (CNTs) in random networks. The new device bypasses ...

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03-Jul-2018

Researchers from Tokyo Metropolitan University have observed the formation of holes that move by themselves in droplets of ionic liquids (IL) sitting inside water-ethanol mixtures. This curious, complex phenomenon is driven by an interplay between how ionic liquids dissolve, and how the boundary ...

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08-May-2018

Researchers from Tokyo Metropolitan University have created new superconductors made of layers of bismuth sulfide (BiS2) and a high entropy rare earth alloy oxyfluoride, containing five different rare earth (RE) elements at the same crystallographic site. The new material retains superconducting ...

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22-Mar-2018

Researchers from Tokyo Metropolitan University used a light-sensitive iridium-palladium catalyst to make "sequential" polymers, using visible light to change how different building blocks are combined into polymer chains. By simply switching the light on or off, they were able to realize ...

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12-Feb-2018

Researchers from Tokyo Metropolitan University have developed a way to mount gold nanoparticles on a molecular support known as a polyoxometalate (POM). They successfully applied this to realize nearly 100% conversion of carbon monoxide (CO) over a wide temperature range, demonstrating stable ...

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