a) Schematic: Metal foil inserted for internal heating and fast heat transfer to electrodes and electrolyte. Self-heating activated by switching off the connection between activation terminal and negative terminal. b) Evolution of cell voltage and temperature during activation at Vact = 0.4 V (inset) and subsequent 1C discharge at −20 °C. Battery temperature increases from −20 °C to 0 °C...
Osteoboost, a wearable device that delivers vibrations to the hips and spine to treat low bone density, has become the first medical device of its type to receive FDA approvalBone Health Technologies The FDA has given its approval to a wearable belt, the first non-drug prescription medical device, that administers targeted vibrations to the spine...
A breakthrough in hybrid supercapacitors has been achieved by increasing the active material in electrodes through a novel method involving β-Ni(OH)2 and NH4F. This innovation leads to more efficient energy storage, opening new possibilities for advanced energy systems. Credit: SciTechDaily.com New research improves hybrid supercapacitors by developing more efficient electrodes, representing a substantial advancement in...
Geothermal pools, like the Grand Prismatic Spring in Yellowstone National Park seen here, contain ample amounts of lithiumDepositphotos Lithium-ion batteries power everything from vapes to electric cars, but they rely on hard-to-extract lithium. A new electrochemical reactor from Rice University promises to make lithium harvesting safer and more efficient. Lithium-ion batteries dominate the market due to...
An artist's impression of an accreting X-ray pulsar. (Dana Berry/NASA) Neutron Star Spins at Unbelievable Speed A neutron star located 27,400 light-years away is exhibiting one of the most remarkable rotational speeds ever observed. In the binary system 4U 1820-30, this dead star spins so rapidly around its axis that it completes an astounding 716 rotations per second....
Credit: Pixabay The term "atom," derived from Latin for "indivisible," can be misleading. A recent simulation by U.S. theoretical physicists has provided a detailed microscopic view of how an atom splits in two, shedding light on an energetic event that has significantly impacted science and technology. In 1938, physicists Otto Hahn, Lise Meitner, and Fritz Strassmann...
COF-999, shown here in its form of a yellow powder, adsorbs a huge quantity of CO2 at room temperature, and can be reused at least 100 timesZihui Zhou / UC Berkeley Researchers at the University of California, Berkeley have developed a powdery material that adsorbs carbon dioxide with remarkable efficiency. Just 200 grams (about 0.5...
Concept of the Airbus/Toshiba superconducting aircraft motor Collaboration for Ultra-Efficient Motor Development Airbus and Toshiba have joined forces to develop an ultra-efficient superconducting motor for aircraft that utilizes liquid hydrogen to power the propulsion system and cool adjacent systems. Among the alternatives for reducing aircraft emissions, hydrogen stands out for its high energy density and ability to...
The Super Magdrive gives us ACME vibesMagdrive The most prevalent metal known to humanity is iron. It can be found everywhere, not just on Earth but also in space. Astro engineers have recently discovered how to utilize iron—and nearly any metal, for that matter—as plasma rocket fuel. It's well-established that certain metals can ignite explosively. Lithium...
Columbia Engineering scientists are advancing renewable energy storage by developing cost-effective K-Na/S batteries that utilize common materials to store energy more efficiently, aiming to stabilize energy supply from intermittent renewable sources. Columbia Engineers have developed a new, more powerful battery electrolyte that lasts longer and is cheaper to produce. Renewable energy sources like wind and...
