Researchers have developed high volumetric-energy-density and long-life lithium sulfur (Li-S) batteries based on the free-standing, densely compact, and integrated cathode.... nanowerk · 6 months
Scientists put the ​"solve" in ​"solvent" for lithium-sulfur battery challenge  PHYS.ORG · 1 week
Lithium-ion batteries represent the majority of batteries in consumer electronics and electric vehicles. Today, scientists are looking for new chemistries that could improve the energy density and performance... more
Calcium batteries: New electrolytes, enhanced properties  SCIENCE DAILY · 4 weeks
Calcium-based batteries promise to reach a high energy density at low manufacturing costs. This lab-scale technology has the potential for replacing lithium-ion technology in future energy storage systems. Using the electrolytes available, however, it has been... more
High-energy-density polymeric cathode for fast-charge sodium- and multivalent-ion batteries  PHYS.ORG · 1 week
Next-generation batteries will probably see the replacement of lithium ions by more abundant and environmentally benign alkali metal or multivalent ions. A major challenge, however, is the development of stable... more
Post-lithium battery technology  nanowerk · 1 week
High-energy-density polymeric cathode for fast-charge sodium- and multivalent-ion batteries. more
Scientists develop superfast-charging, high-capacity potassium batteries  PHYS.ORG · 20 hours
Skoltech researchers in collaboration with scientists from the Institute for Problems of Chemical Physics of RAS and the Ural Federal University have shown that high-capacity, high-power batteries can be made from organic materials without lithium or... more
The rise of graphynes  nanowerk · 2 weeks
Graphyne is a little known sibling of graphene. Simulations have shown that graphyne's conduction electrons travel extremely fast - as they do in graphene - but in only one direction. That property could help researchers design faster transistors and other... more
Scientists closer to understanding nature of ultrahigh-energy cosmic rays  PHYS.ORG · 4 weeks
With the help of a multitude of original developments, scientists hope to research the processes of birth and propagation of very-high-energy gamma rays, and in the future, to find mysterious... more
Nobel-winning lithium-ion batteries powering space  ESA · 4 weeks
ESA’s space power experts congratulate the winners of this year’s Nobel Prize for Chemistry, for their invention of lithium-ion batteries. These energy-dense, long-lasting and rechargeable batteries... more
The next graphene? Shiny and magnetic, a new form of pure carbon dazzles with potential  Science Magazine · 12 hours
U-carbon could be used in lightweight coatings, medical products, and novel electronic devices more
To rid electric grid of carbon, shore up green energy support  SCIENCE DAILY · 2 weeks
Engineers, along with an economist, have created an energy model that helps to remove carbon-generated power from the US electric grid -- replacing it with a... more
Batteries: Post-lithium technology  SCIENCE DAILY · 1 week
Next-generation batteries will probably see the replacement of lithium ions by more abundant and environmentally benign alkali metal or multivalent ions. A major challenge, however, is the development of stable electrodes that combine high energy densities with fast charge and... more
Thermionic transport across gold-graphene-WSe2 van der Waals heterostructures  Science Magazine · 5 days
Solid-state thermionic devices based on van der Waals structures were proposed for nanoscale thermal to electrical energy conversion and integrated electronic cooling applications. We study thermionic cooling across gold-graphene-WSe2-graphene-gold structures computationally and... more
Study casts doubt on carbon capture  PHYS.ORG · 3 weeks
One proposed method for reducing carbon dioxide (CO2) levels in the atmosphere—and reducing the risk of climate change—is to capture carbon from the air or prevent it from getting there in the first place. However, research... more
Twisted physics: Magic angle graphene produces switchable patterns of superconductivity  PHYS.ORG · 2 weeks
Last year, scientists demonstrated that twisted bilayer graphene—a material made of two atom-thin sheets of carbon with a slight twist—can exhibit alternating superconducting and insulating regions. Now, a... more
Researchers: Unusually broad diffraction background marks high-quality graphene  PHYS.ORG · 2 weeks
Producing structurally perfect graphene and other 2-D materials is the secret to tapping into their potential novel electronic and spintronic properties. But how do we know when graphene, the most widely studied... more
Mitochondria work much like Tesla battery packs, study finds  PHYS.ORG · 4 weeks
For years, scientists assumed that mitochondria—the energy-generating centers of living cells—worked much like household batteries, generating energy from a chemical reaction inside a single chamber or cell. Now, UCLA researchers... more
Go with the flow: Scientists design new grid batteries for renewable energy  SCIENCE DAILY · 6 days
Scientists have designed an affordable 'flow battery' membrane that could accelerate renewable energy for the electrical grid. more
Scientists pinpoint cause of harmful dendrites and whiskers in lithium batteries  SCIENCE DAILY · 4 weeks
Scientists have uncovered a root cause of the growth of needle-like structures -- known as dendrites and whiskers -- that plague lithium batteries, sometimes causing a... more
Are we underestimating the benefits of investing in renewable energy?  PHYS.ORG · 4 weeks
As policymakers seek to reduce carbon dioxide and other pollutants through increases in renewable energy, improving energy efficiency or electrifying transportation, a key question arises: Which interventions provide... more
Scientists pinpoint cause of harmful dendrites and whiskers in lithium batteries  nanowerk · 4 weeks
Scientists have uncovered a root cause of the growth of needle-like structures -- known as dendrites and whiskers -- that plague lithium batteries, sometimes causing a... more
New research finds carbon nanotubes show a love/hate relationship with water  PHYS.ORG · 14 hours
Carbon nanotubes (CNTs) are valuable for a wide variety of applications. Made of graphene sheets rolled into tubes 10,000 times smaller than a human hair, CNTs... more
Taking 2-D materials to the MAX  PHYS.ORG · 4 weeks
Discovered by researchers at Drexel University as electrodes for energy applications, MXenes have become a research focus for KAUST. Husam Alshareef and his team specialize in creating nanomaterials for electronic and energy applications. They turn them... more
Will lithium-air batteries ever take flight?  PHYS.ORG · 2 weeks
Amid growing climate concerns, many governments and scientists worldwide are trying to reduce air travel's environmental impact. Electric planes are a possible solution, but better batteries are needed to power large aircraft for long distances. Lithium-air... more
High density of genuine growth twins in electrodeposited aluminum  Science Magazine · 4 weeks
We demonstrate electrodeposition as a synthesis method for fabrication of Al coatings, up to 10 μm thick, containing a high density of genuine growth twins. This has not been expected... more
Atomic images reveal unusually many neighbors for some oxygen atoms in graphene  nanowerk · 3 weeks
Researchers have found unexpected new configurations of oxygen and nitrogen in graphene. more
Probing work and heat dissipation in the quantum Hall edges of graphene  PHYS.ORG · 3 weeks
Combining our nano-SQUID on tip with scanning gate measurements in the quantum Hall phase of graphene we were able to measure and identify work... more
3D printing batteries - an overview  nanowerk · 1 week
As an advanced fabrication technique, 3D printing has been increasingly utilized to fabricate complex 3D objects via digitally controlled deposition of phase change and reactive materials and solvent-based inks. When it comes to batteries, 3D printing... more
Magic angle graphene produces switchable patterns of superconductivity  SCIENCE DAILY · 2 weeks
A new study shows that superconductivity in bilayer graphene can be turned on or off with a small voltage change, increasing its usefulness for electronic devices. more
Room temperature strain-induced Landau levels in graphene on a wafer-scale platform  Science Magazine · 5 days
Graphene is a powerful playground for studying a plethora of quantum phenomena. One of the remarkable properties of graphene arises when it is strained in particular... more
A plethora of states in magic-angle graphene  nanowerk · 2 weeks
Researchers use twisted bi-layer graphene to unveil a new zoo of previously unobserved states, from superconducting to insulating to a new range of magnetic and topological states. more
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