Category Technology/Electronics

Lean Electrolyte design is a game-changer for Magnesium Batteries


Directing Mg-Storage Chemistry in Organic Polymers toward High-Energy Mg BatteriesJoule, 2018; DOI: 10.1016/j.joule.2018.11.022

Chloride-free electrolyte and organic cathode boosted energy density, stability. Researchers from the University of Houston and the Toyota Research Institute of America have discovered a promising new version of high-energy magnesium batteries, with potential applications ranging from electric vehicles to battery storage for renewable energy systems.

The battery, reported Dec. 21 in Joule, is the first reported to operate with limited electrolytes while using an organic electrode, a change the researchers said allows it to store and discharge far more energy than earlier magnesium batteries...

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Sound Waves Levitate Multiple Objects


Researcher testing the acoustic traps generated by the Holographic Acoustic TweezersSergio Larripa, Asier Marzo, Bruce Drinkwater © 2018

Future technology for contactless medical procedures. In the perhaps not so distant future, surgeons could perform a range of medical procedures all without touching the patient, thanks to advancements in ‘acoustic tweezers’.

Surgeons won’t be shrunk and sent into the body like in the 1960s Sci-Fi, Fantastic Voyage, but could program a specialised array of mini-speakers to create an intricate sound field that ‘traps’ and manipulates selected objects in ‘acoustic tweezers’ for manipulation within tissue.

Advancements in acoustic tweezers from Professor Bruce Drinkwater in the Department of Mechanical Engineering, University of Bristol, and his...

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3D-printed Robot Hand Plays the Piano


Robot hand playing the piano.
Credit: Josie Hughes

Scientists have developed a 3D-printed robotic hand which can play simple musical phrases on the piano by just moving its wrist. And while the robot is no virtuoso, it demonstrates just how challenging it is to replicate all the abilities of a human hand, and how much complex movement can still be achieved through design.

The robot hand, developed by researchers at the University of Cambridge, was made by 3D-printing soft and rigid materials together to replicate of all the bones and ligaments – but not the muscles or tendons – in a human hand...

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Flexible Thermoelectric Generator Module: A silver bullet to fix waste energy issues


Photo and schematic design of the FlexTEG module, photo of Bismuth-telluride (Bi-Te) semiconductor chips, and voltage and power as a function of the current for the FlexTEG module at different temperature gradients.
Credit: Osaka University

A team of researchers led by Osaka University developed an inexpensive large-scale flexible thermoelectric generator (FlexTEG) module with high mechanical reliability for highly efficient power generation. Through a change in direction of the top electrodes at the two sides of the module and the use of high density packaging of semiconductor chips, the FlexTEG module has more flexibility in any uniaxial direction...

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