Articles tagged with Batteries
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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.
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 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.
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.
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...
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.
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.
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.
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.
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 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.
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.
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.
Researchers developed a biodegradable supercapacitor that can store electricity for hours, withstand thousands of charge cycles, and degrade naturally. The device uses a combination of cellulose nanofibers, carbon, and glycerin to achieve its capabilities.
Researchers discovered that a valence gradient can serve as a new approach for stabilizing high-nickel-content cathode materials against degradation and safety issues. By isolating the valence gradient from concentration gradient, they confirmed its critical role in battery performance.
Researchers from Heriot-Watt University developed AI algorithms to optimize community energy assets, using multi-agent systems and cooperative game theory. The models provide fair ways to share joint gains among community members, considering individual contributions and needs.
Researchers review biopolymer-based electrolytes for lithium batteries, highlighting polysaccharides and proteins with unique properties. The study aims to improve interfacial stability and mechanical strength of membranes, enabling the design of zero-pollution batteries.
A ban on new fossil-fuel car sales could lead to a significant reduction in carbon dioxide emissions, but the effect will depend on factors like battery manufacturing. By 2045, electric cars can reduce life-cycle emissions by 3-5 million tonnes of CO2.
Researchers from Skoltech developed a simple redox-active polyimide with promising features in various energy storage devices. The new material showed high specific capacities, relatively high redox potentials, and decent cycling stability.
A new class of molecules has been engineered to provide energy storage for aqueous organic redox flow batteries. The approach delivers a high energy efficiency even after four months of cycling at elevated temperatures.
Scientists at PNNL have demonstrated the potential of low-cost organic compounds for storing massive amounts of energy to be fed into the electric grid. The researchers showed that fluorenone, a common compound found in candles, can operate continuously for 120 days and lose less than 3% of its energy capacity after 1,111 full cycles.
Researchers at the University of Illinois have made significant breakthroughs in solid-state battery technology by controlling atomic alignment of materials to improve cathode-solid electrolyte interface stability. This enables more efficient charging and discharging cycles, leading to increased energy density and improved cycle life.
Researchers at Chalmers University of Technology have created a prototype for a rechargeable cement-based battery with an average energy density of 7 Wh/m2. The concept has vast potential for energy storage and monitoring applications in buildings, offering a sustainable alternative to traditional materials.
Researchers found that older lithium-based batteries are safer due to reduced energy potential, leading to more efficient designs and improved safety. The study's results will aid in deriving safety factors for subsequent use of used batteries.
The study reveals two competing theories on lithium metal dendrite growth through ceramic electrolytes, proposing a new mechanism for solid-state battery failure. The researchers used X-ray computed tomography and spatially mapped X-ray diffraction to visualize and characterize crack growth and dendrite propagation.
Scientists at Texas A&M University designed a new type of battery that eliminates the need for metals and flammable electrolytes. The metal-free, water-based battery shows improved energy storage performance despite lower capacity compared to traditional Li-ion batteries.
Scientists identified depletion of liquid electrolyte as primary cause of failure in high-energy-density lithium-metal batteries. The study used high-energy x-rays to map performance variations and calculate cathode material state, enabling the discovery of dominant failure mechanism.
Researchers analyzed a database of over 3 million urban electric vehicles in China to understand energy consumption patterns. They found that energy consumption changes by up to 21% during winter-to-spring seasonal transitions.
Researchers developed an AI framework to estimate battery health without interrupting operation, considering operating conditions and chemistry. The model can quantify uncertainty in predictions, supporting operating decisions.
A recent X-ray study clarifies the reaction mechanism of lithium manganese oxide (Li2MnO3) and finds it suitable as a catalyst for high-energy electrode materials. The discovery paves the way for exploring alternative battery technologies, including lithium-air and lithium-carbon dioxide batteries.