Articles tagged with Batteries
A case report highlights the limitations of remote monitoring in detecting premature battery depletion in recalled pacemakers, leading to urgent device replacement. The cases emphasize the importance of closer monitoring and prophylactic generator changes in patients with high-risk devices.
Researchers at WVU are creating control software for aerial robots to survey Venus' atmosphere, helping model the evolution of climate on Earth. The aerobots will use a hybrid airship design and energy-efficient paths to explore the planet's surface.
Researchers at the University of Texas at Austin have developed a new sodium-based battery material that overcomes the dendrite problem in earlier sodium batteries. The new material recharges as quickly as a traditional lithium-ion battery and has a higher energy capacity than existing sodium-ion batteries.
Researchers developed a green synthesis method for ammonia production using green tea as a reducing agent. The study found that the optimized sample showed 2.93-fold enhanced photocatalytic activity and increased NH3 selectivity, outperforming bulk g-C3N4 under simulated sunlight irradiation.
Researchers found that repeated fast charging causes atomic-level damage to the graphite particles in lithium-ion batteries, leading to degradation. This damage hinders the intercalation process, preventing lithium ions from moving into the particles, and ultimately impairing battery performance.
Recent study uses advanced spectroscopy techniques to observe water molecules in superconcentrated salt solutions and identifies heterogeneity in solvation structure. This finding explains the unexpected fast lithium-ion transport in highly viscous electrolytes.
A Berkeley Lab study shows how battery-electric trains can cut carbon dioxide emissions by over half, eliminating premature deaths and health costs associated with diesel freight trains. The analysis suggests that retrofitting diesel-electric trains with batteries is a cost-effective solution with multiple benefits.
Researchers used AI to optimize multiple properties of flow batteries, finding molecules that store a lot of energy and remain stable. The study uses quantum chemistry-guided multiobjective Bayesian optimization to identify promising candidates.
A new study found that research and development on chemistry and materials science were key factors behind the significant cost decline of lithium-ion batteries. The analysis revealed that over 50% of the cost reduction came from R&D activities, with chemistry and materials research being the primary contributors.
Researchers at Berkeley Lab are developing next-generation materials and systems for thermal energy storage, which could be a viable alternative to batteries. The technology has the potential to reduce demand on the electricity grid from thermal loads and free up resources for other applications.
Scientists from City University of Hong Kong successfully developed battery-like electrochemical Nb2CTx MXene electrodes with stable voltage output and high energy density. The findings break the performance bottleneck of MXene devices, exhibiting superior rate capability, durable cyclic performance, and high energy density.
An international research team led by Jennifer L. Schaefer has analyzed the potential of magnesium-ion-conducting solid polymer electrolytes in two separate battery systems. The study found that these electrolytes exhibit higher thermal, mechanical, and electrochemical stability compared to traditional liquid electrolytes, making them ...
The study investigates the effect of solvent on liquid-phase synthesis of lithium solid electrolytes. The research team found that solvents with high dielectric constants enhance reactivity and lead to crystalline Li7P3S11 with high conductivity. Acetonitrile emerges as the best solvent for mass production of sulfide solid electrolytes.
Scientists have created a photostabilizer that scavenges singlet oxygen atoms and free radicals, improving electrochemical performance in high-voltage lithium batteries. The bio-inspired mechanism addresses the issue of electrolyte degradation, which poses challenges to next-generation energy storage devices.
Researchers developed a molecular compound that serves as a low-cost electrolyte for redox flow batteries, enabling stable operation and high capacity retention. The compound overcomes limitations of previous electrolytes by increasing its hydrophilicity and conductivity.
Researchers developed a hybrid membrane using graphene oxide and tungsten trioxide nanoparticles to reduce vanadium ion permeation in VRFBs. The new membrane shows high ion selectivity, improving Coulombic and energy efficiency compared to commercial membranes.
Researchers at the University of Rochester develop a computational V2G model that accounts for factors not previously considered, showing potential savings of $120-$150 per year for vehicle owners. The model uses data from the US Census Bureau and calculates battery degradation costs based on various variables.
Penn State researchers have received a $2.9 million grant to tackle challenges related to lithium-sulfur batteries, which could provide double the energy density and cycle life of current technology. The project aims to address issues such as polysulfide dissolution and dendrite formation to improve battery stability.
Researchers focus on cathode materials in rechargeable aluminum batteries to improve electrochemical performance. Current studies classify cathode materials into four groups based on ion charge carriers and discuss their respective electrode structures, optimization strategies, and charge storage mechanisms.
A Curtin University study has found a simple and affordable way to test which chemicals are best used to store and supply energy, solving the puzzle of energy storage and supply. The breakthrough method can be performed in a basic lab with minimal equipment, producing full charges that last for at least four days.
Researchers developed a flexible, self-powered device that translates sound waves into electrical signals, mimicking the inner ear's function. The device, implanted in a model ear, accurately recreated music files, offering a promising solution for treating hearing loss without batteries.
Researchers have overcome significant barriers to developing safe and long-life lithium metal batteries by creating a new structure in the negative electrode that can regulate lithium ion flux. The results show high capacity retention of over 80% after more than 200 cycles of recharging.
The study found that a stack pressure of 350 kilo Pascal increases lithium particle deposition in neat columns, improving stability and reducing the risk of short circuits. Additionally, partial discharge during cycling can also boost performance without affecting the solid electrolyte interphase structure.
A recent study has found that the COVID-19 pandemic led to a significant increase in cases of children ingesting small magnets and button batteries, which can cause serious harm or even death. The American Academy of Pediatrics reports that emergency departments saw a higher proportion of battery and magnet ingestions during the pandemic.
Researchers at Ural Federal University successfully experimentally determined the optimal thickness of an aluminum layer in a fully solid-state lithium power source. The results will be used to create high-energy batteries with increased operational safety and lower production costs.
Researchers introduce a new platform called BFree that allows users to build battery-free devices using intermittent energy harvesting. The system includes energy-harvesting hardware and a power-failure-resistant version of Python, making it accessible to novice programmers.
Scientists have discovered a two-dimensional type I superionic conductor with high ionic conductivity and low thermal conductivity, making it a promising material for batteries, fuel cells, thermoelectrics, and environmental cleanup applications.
A universal descriptor has been found to indicate the best electrolytes for organic redox flow batteries, reducing experimentation time. This breakthrough could speed up the development of new storage technologies, enabling grid-scale energy storage with a stable grid.
Scientists create a flexible supercapacitor using wrinkled titanium carbide nanosheets that maintains its ability to store and release electronic charges after repetitive stretching. The device has a high energy capacity comparable to existing MXene-based supercapacitors, but with extreme stretchability up to 800% without cracking.
A new research method developed by an interdisciplinary team of engineers and scientists has the potential to significantly increase lithium supply and reduce costs for devices that rely on it. The technique involves extracting lithium from contaminated water using precise membranes, which can improve efficiency and simplify the extrac...
Researchers developed a lightweight and flexible passive air-breathing PEMFC with simplified components. The new design allows for easy assembly and folding, reducing the number of parts and increasing power output when connected in series.
Berkeley Lab researchers developed a method to increase the efficiency of LED devices by applying mechanical strain to thin semiconductor films. This approach reduces exciton annihilation, allowing for high-performance LEDs even at high brightness levels.
Storing lithium-ion batteries at below-freezing temperatures can crack the cathode material, reducing electric storage capacity. Researchers identified this issue by analyzing battery particles using X-ray methods and machine learning techniques.
Scientists at Tokyo University of Science develop a new methodology to investigate the elusive electric double layer (EDL) effect in all-solid-state batteries. The study reveals that the EDL effect is dominated by the electrolyte's composition and can be suppressed through charge compensation, leading to improved performance.
The new alkali metal-chlorine batteries can cycle up to 200 times and achieve a capacity of 1,200 milliamp hours per gram, significantly outperforming commercial lithium-ion batteries. Researchers envision their batteries being used in satellites and remote sensors where frequent recharging is not practical.
Researchers at Tohoku University have developed liquid-sulfur/sulfide composite cathodes enabling high-rate magnesium batteries. The material shows high capacity, potential, cyclability, and rate capability, with a discharge capacity of ~900 mAh/g and stable performance for over 50 cycles.
A new membrane design reduces dendrite issues in zinc-based batteries, achieving high areal capacity and current density. The study demonstrates improved energy efficiency and stability at high current densities.
Researchers at Nagoya City University find a fourfold increase in surface deuterium atoms on nanocrystalline silicon, paving the way for sustainable deuterium enrichment protocols. The efficient exchange reaction could lead to more durable semiconductor technology and potentially purify tritium contaminated water.
Researchers at Berkeley Lab have made significant breakthroughs in developing a highly effective COVID-19 antibody therapy and an efficient thermoelectric system that can convert waste heat to electricity. The new antibody, S309, has been shown to neutralize all known SARS-CoV-2 strains and may be more difficult for new mutants to escape.
NTU scientists create soft and stretchable battery powered by human perspiration, suitable for wearable devices. The battery generates electricity in the presence of sweat, providing a sustainable alternative to conventional batteries.
A Hebrew University study reveals that as worldwide lead production increases, so do rates of lead absorption in people, leading to toxic effects. The research uses ancient human bones to show the close relationship between lead production and human exposure.
A UK team developed a portable ventilator to treat COVID-19 patients in developing countries. The Field Ventilator can be used beyond COVID-19 to treat various respiratory diseases and patients needing respiratory support.
Researchers have designed a novel material that combines the desirable characteristics of chloride solid electrolytes, including high ionic conductivity and deformability. The new electrolyte, Li2ZrCl6, offers a significantly lower raw material cost and improved humidity tolerance than existing alternatives.
Researchers developed a novel method to visualize and understand the structural and chemical evolution of silicon and its interface with the electrolyte. This breakthrough could lead to more robust lithium batteries with improved performance and longer cycle life.
The UK has invested £10 million in the Faraday Battery Challenge to develop innovative battery technologies. Four projects, including Power-UP, GENESIS, HIPERCARB, and SABRE, aim to create high-performance batteries for electric vehicles, with applications in energy density, cost optimization, and fast charging.
A leading nano-technologist argues that there are no excuses left to justify the use of fossil fuels. Significant innovations in advanced batteries and energy storage technologies are needed to meet the goal of a carbon net-zero planet by 2050.
Scientists have long struggled to make reliable lithium-metal batteries due to high failure rates and safety issues. New nanoscale images reveal a hard buildup of solid electrolyte interphase, which tears holes in the separator and allows metal deposits to form a short, leading to catastrophic device failure.
A study from University of Michigan researchers found that electric delivery vehicle charging practices can greatly impact their potential to reduce greenhouse gas emissions. Optimizing charging strategies can lower emissions by up to 37% and protect investment. Charging from a cleaner energy source, such as renewables, is key.
A new study suggests that collective battery storage can significantly reduce the cost of providing load smoothing and peak shaving services to households. By sharing batteries or having one per 20 houses, households can provide essential grid services while reducing individual costs, a key finding published in Energy & Buildings.
Researchers at UC Berkeley created an insect-scale robot using electrostatic adhesion, allowing it to traverse complex terrain and make sharp turns with unprecedented speed and control. The robot can survive being stepped on by a human and operate for up to 19 minutes on battery power.
Engineers at UC Berkeley created an insect-scale robot using electrostatic adhesion to traverse complex terrain and avoid obstacles with incredible agility. The robot's design allows it to swerve, pivot, and make sharp turns with unprecedented speed and control.
The KAUST team's solution involves a layer of hierarchically porous graphene that significantly suppresses polysulfide shuttling in Li-S batteries. This innovation improves the capacity and recharging ability of Li-S battery technologies, making them suitable for large-scale commercial applications.
A new study by Carnegie Mellon University researchers suggests that storing both oil and gas on-site at power plants can reduce dependence on gas grids and mitigate fuel shortages. This could reduce costs for electric customers in New England, where gas supply constraints have led to frequent power plant outages.
The CSEM innovation enables devices to run independently for over a year, reducing installation and maintenance costs. The system's two-tiered data processing approach drastically reduces power requirement, with most applications using only the first accelerator.
Researchers developed semiconducting passivation layers to inhibit dendrite formation, enhancing battery stability and safety. The new technology improved battery capacity by up to 81% compared to conventional Li electrodes.
A newly developed LDH-based composite membrane enhances AZIFB performance by improving selectivity and hydroxide ion conductivity. The study achieved an operating current density of 200 mA cm‒‒, along with high energy efficiency of 82.36%.
A new study presents a high-efficiency battery system that can be charged using indoor lighting, showcasing an overall energy efficiency of 13.2%. The research team developed a novel electrode material that significantly enhances charging efficiency under dim light conditions.
Researchers at NUS successfully demonstrated a system that wirelessly powers wearables by harnessing energy from the environment and transmitting it through the human body. The technology can power up to 10 wearable devices for over 10 hours, paving the way for battery-less wearables.
A team of scientists has observed direct atomic evidence of the anionic redox mechanism in lithium-rich cathodes, which could lead to breakthroughs in battery technology. The discovery provides conclusive evidence for this mechanism, nearly doubling the energy storage capacity compared to conventional cathodes.
Researchers at the University of Liverpool have made a groundbreaking discovery in charge storage mechanisms for calcium-air batteries. The new finding, known as trapped interfacial redox, introduces a novel mechanism that can be harnessed to create highly sustainable battery technologies.