Battery and energy news
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Hydrogen storage
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power converters
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Researchers develop sodium battery capable of rapid charging in just a few seconds
Sodium (Na), which is over 500 times more abundant than lithium (Li), has recently garnered significant attention for its potential in sodium-ion battery technologies. However, existing sodium-ion batteries face fundamental limitations, including lower power output, constrained storage...
Mess is best: Disordered structure of battery-like devices improves performance
The energy density of supercapacitors—battery-like devices that can charge in seconds or a few minutes—can be improved by increasing the 'messiness' of their internal structure.
Neutron scattering study points the way to more powerful lithium batteries
An international team of scientists has found a way to improve battery design that could produce safer, more powerful lithium batteries.
Proof-of-concept nanogenerator turns CO₂ into sustainable power
University of Queensland researchers have built a generator that absorbs carbon dioxide (CO2) to make electricity.
Harnessing solar energy for high-efficiency NH₃ production
A technology that harnesses solar energy to produce high-efficiency ammonia (NH3) has been unveiled by a research team affiliated with UNIST.
Garbage could replace a quarter of petroleum-based jet fuel every year
Every year, the nation's aviation industry uses around 22 billion gallons of jet fuel, which produces about 1 billion tons of carbon dioxide—or 3% of the world's carbon dioxide emissions. Because of this, researchers and policymakers alike are eyeing aviation as an industry ripe with opportunity...
Coffee grinder, old tires spur creation of sulfur-free oil
Using a coffee grinder, a freezer and a furnace, researchers have discovered a chemical synergy between scrap tires and polystyrene can be harnessed to create sulfur-free, light oil.
Floating solar's potential to support sustainable development
A study, published in Nature Energy, is among the first to explore the floating photovoltaics (FPV) at the continental scale, finding that FPV installed at existing major reservoirs could produce 20–100% of the electricity expected from Africa's planned hydropower dams. Using a state-of-the-art...
Clearing the air: Wind farms more land efficient than previously thought
Wind power is a source of energy that is both affordable and renewable. However, decision-makers have been reluctant to invest in wind energy due to a perception that wind farms require a lot of land compared to electric power plants driven by fossil fuels. Research led by McGill University and...
Retro-reflectors could help future cities keep their cool
Engineers at Princeton University have quantified the cooling benefits of a simple solution for beating urban heat: reflecting solar radiation back from whence it came.
Cooler transformers could help electric grid
Most people do not give the U.S. electric grid a second thought—we flip a switch, and the lights come on. Behind the scenes are thousands of power plants and utilities linked by millions of miles of transmission lines. To make raw electricity useful, grid transformers convert high voltage to...
Quantum electronics: Charge travels like light in bilayer graphene
An international research team led by the University of Göttingen has demonstrated experimentally that electrons in naturally occurring double-layer graphene move like particles without any mass, in the same way that light travels. Furthermore, they have shown that the current can be "switched"...
Researchers discover previously unknown gene that indirectly promotes photosynthesis in blue-green algae
Cyanobacteria—also called blue-green algae—are known as the "plants of the ocean" because they carry out photosynthesis on a gigantic scale, produce oxygen and extract the greenhouse gas CO2 from the environment. However, to do this they need additional nutrients such as nitrogen.
Novel material supercharges innovation in electrostatic energy storage
Electrostatic capacitors play a crucial role in modern electronics. They enable ultrafast charging and discharging, providing energy storage and power for devices ranging from smartphones, laptops and routers to medical devices, automotive electronics and industrial equipment. However, the...
Harvesting vibrational energy from 'colored noise'
The energy demands of today's ubiquitous small electronic devices—including sensors, data transmitters, medical implants and 'wearable' consumer products such as Fitbits—can no longer be met by chemical batteries alone. This gap can be filled by energy harvesters, which turn ordinary, ambient...
Combating disruptive 'noise' in quantum communication
In a significant milestone for quantum communication technology, an experiment has demonstrated how networks can be leveraged to combat disruptive 'noise' in quantum communications.
Hydrogen storage
New material for hydrogen storage confines this clean yet troublesome fuel
Skoltech scientists and their colleagues from Shubnikov Institute of Crystallography of RAS and research centers in China, Japan, and Italy have discovered a material for chemical storage of hydrogen that can "soak up" four times as much of this hard-to-contain gas as the current top contenders.
Trash to treasure—Researchers turn metal waste into catalyst for hydrogen
Scientists have found a way to transform metal waste into a highly efficient catalyst to make hydrogen from water, a discovery that could make hydrogen production more sustainable.
Magnetism boosts hydrogen production in model catalysts
Researchers at the University of Twente have shown how to improve the efficiency of hydrogen production in an experimental setup. They showed that the magnetic order of the molecules plays a critical role.
Cost-effective nanorod electrodes for molecular hydrogen production
SUNY Polytechnic Institute (SUNY Poly) Associate Professor of Electrical and Computer Engineering Technology Dr. Iulian Gherasoiu and peers have published research in the Journal of Applied Electrochemistry titled "MoVN-coated MoNi4-MoO2 nanorods as a bifunctional electrode for electrochemical...
power converters
https://techxplore.com/news/2024-04-scientists-high-boost-efficiency-dc.html
A flexible and efficient DC power converter for sustainable-energy microgrids
A new DC-DC power converter is superior to previous designs and paves the way for more efficient, reliable and sustainable energy storage and conversion solutions. The Kobe University development can efficiently interface with a wide range of energy sources while enhancing system stability and...
