Articles tagged with Batteries
A team of electrical engineers at KAUST has successfully made pure red LEDs from nitride crystals, paving the way for improved display technologies and efficient lighting. The breakthrough utilizes metalorganic vapor-phase deposition to add indium and aluminum to the crystal, reducing defects and increasing voltage efficiency.
A new device, PuffPacket, can track e-cigarette consumption patterns and provide valuable insights for research on vaping. It helps researchers understand addiction triggers and create interventions to help people quit.
A new device developed at Carnegie Mellon University uses multiple strings attached to the hand and fingers to simulate the feel of obstacles and heavy objects in virtual reality. The device provides more realistic haptic feedback than other techniques, enabling users to feel the contours of virtual objects and sense resistance.
A study by researchers at the University of São Paulo has identified a promising technological alternative to solvents used in batteries. Highly concentrated aqueous electrolytes offer significant advantages over conventional methods, including being nontoxic and cheaper. However, challenges such as hygroscopicity and corrosion need to...
Purdue University researchers developed a technique to turn waste polyethylene terephthalate into battery components using ultrafast microwave irradiation. The technology has shown promising results for lithium-ion and sodium-ion battery cells, offering a low-cost and sustainable solution for renewable energy storage.
Researchers have developed a hydrogel that can cool down electronic devices and convert waste heat into electricity, reducing overheating issues and increasing device efficiency. The new material, which is self-regenerating and safe for use, has shown promising results in cooling cell phone batteries during fast discharging.
Researchers at ORNL successfully demonstrated a 20-kilowatt bi-directional wireless charging system on a UPS truck, transferring power across an 11-inch air gap with over 92% efficiency. The technology also supports energy storage and expands possibilities for fleets to utilize vehicle battery storage.
Researchers at the University of Eastern Finland developed a hybrid material combining mesoporous silicon microparticles and carbon nanotubes to improve silicon's performance in Li-ion batteries. The material was produced from barley husk ash, reducing its carbon footprint.
Scientists have discovered that more energy can be stored by charging less frequently, but right up to 100%. The study found that dividing the storage system into compartments increases energy storage. This discovery may revolutionize electric car battery technology and lead to significant increases in capacity.
Researchers have developed Fe <sub>1-x</sub> S-decorated mesoporous carbon spheres as a nanoreactor for lithium-sulfur battery cathodes, showing excellent polysulfide catalytic activity and cyclic stability. The design strategy provides a new protocol for building high-capacity and long-cycle rechargeable batteries.
Researchers at USTC observed single-atom-layer defects that act as 'Li-ion traps', significantly influencing ionic transport and reducing conductivity by up to 1-2 orders of magnitude. The discovery opens new avenues for understanding non-periodic features in solid electrolytes.
Researchers are using high-efficiency mrixS to study oxygen atoms and metal states in battery electrodes. The technique helps detect chemical states, track electron movement, and measure degradation, leading to improved battery performance.
Researchers at KIST have developed a sulfide-based superionic conductor that delivers Li-ion conductivity comparable to liquid electrolytes, solving a key challenge in all-solid-state battery technology. The new material enables accelerated mass production and commercialization of safe batteries.
Researchers at the University of Würzburg and Technical University of Braunschweig have developed two innovative technologies, Skith and Wall#E, to simplify satellite construction. Skith enables wireless control and reduces satellite mass, while Wall#E is a fiber-reinforced structure that stores electrical energy.
Researchers have created an all-organic proton battery with the ability to charge in seconds and retain capacity down to -24°C. The battery uses quinones as active material and an acidic aqueous solution as electrolyte, providing a safe and environmentally friendly alternative to traditional batteries
Researchers found that stroke survivors who engaged in light physical activity reported fewer physical limitations than their more sedentary peers. Light physical activity was associated with improved performance on routine physical tasks and daily activities.
Researchers at MIT used machine learning to streamline the discovery process for new materials, narrowing down 3 million candidates to eight promising options in just five weeks. The neural network was able to predict properties and optimize criteria, improving upon conventional analytical methods.
The researchers demonstrate a novel type of supercapacitor that can store energy like a battery but with some key differences. It stores energy through charge separation and cannot create its own electricity, making it perfect for short, high-power applications.
A new composite catalyst has been developed to enhance the performance of metal-air batteries (MABs), which are considered a strong candidate for next-generation electric vehicles. The catalyst, combining two types of materials, improves charge and discharge efficiency by synergistically enhancing the reaction rates.
Drexel University researchers have discovered a water-free method to produce MXenes, altering their chemical structure to improve battery and solar cell performance. This breakthrough enables the use of MXene materials in applications where water is a contaminant or hampers performance.
The UC San Diego team created a nano-composite separator that slows down the flow of energy and heat inside lithium metal batteries when they short circuit. This allows the battery to self-discharge gradually, preventing catastrophic failure and potential fires.
The 911$ Rescue Drone, a flying stretcher designed by UNIST's design team, has won the iF Design Award 2020 for its innovative features. It includes an emergency stretcher bed, compact propellers, and follow-me feature, making it an efficient tool in responding to golden hour emergencies.
Scientists have developed a method to recharge bioelectronic implants wirelessly using soft and flexible materials that absorb sound waves. The new technology could minimize surgical treatments and improve patient comfort. Researchers have successfully demonstrated the concept by charging devices with ultrasonic energy.
The researchers developed a low-cost and straightforward liquid phase process to create an active sulfur material and carbon nanofiber composite. This composite showed higher discharge capacity and better cycle stability than traditional lithium-ion secondary batteries. The new battery technology has the potential to revolutionize the ...
Researchers developed a simple self-charging battery using ferroelectric glass electrolyte within an electrochemical cell. The technology enables batteries to self-charge without losing energy, increasing autonomy and output power.
The study validated the use of the NIH Toolbox Cognitive Battery in individuals with a mental age of 5 or above, measuring cognitive skills and executive function. The test proved to be feasible and reliable for a high percentage of participants, offering a standardized metric for assessing this population.
Researchers developed a composite membrane for long-life zinc-based flow batteries, improving cycle life and energy efficiency by regulating zinc deposition morphology. The new membrane can stabilize alkaline zinc-iron flow batteries for 500 charge-discharge cycles with over 80% energy efficiency.
Researchers adapted the NIH Toolbox Cognitive Battery to assess cognitive ability in people with intellectual disabilities aged 5 years and above, providing objective measures. The validated battery produces reliable and valid results, paving the way for further research on its adaptation for lower mental ages and older adults.
A team at Stanford University developed a machine learning-based method that accelerates battery development for electric vehicles, reducing testing times from almost two years to 16 days. The approach optimizes the charging process, finding better protocols to test and predicting battery performance based on only a few charging cycles.
Researchers have developed a new supercapacitor that combines high power density and energy density, enabling fast charging and long runtime. The device can be bent to 180 degrees without compromising performance, making it ideal for wearable electronics and electric vehicles.
Researchers at UC San Diego developed a new ultra-low power Wi-Fi radio that consumes just 28 microwatts of power, enabling IoT devices to communicate with existing Wi-Fi networks. The chip can transmit data at a rate of 2 megabits per second over a range of up to 21 meters.
A team of researchers used a virtual unrolling technique to analyze a lithium battery's electrode layers, revealing unseen trends in performance degradation. By combining X-ray and neutron tomography with a mathematical model, the team gained a fuller understanding of how the battery works and how it degrades over time.
A team of researchers investigated electrode surfaces during charging and discharging using X-ray and neutron tomography methods. They found deformations, discontinuities, and areas with low electrolyte levels that affect battery performance. The analysis allows for the development of strategies to improve lithium battery design.
A new study reveals that controlling structural defects in cathode materials can enhance battery performance by allowing lithium ions and electrons to move in three dimensions across layers. High-precision powder diffraction analyses achieved unprecedented accuracy in measuring defect concentrations.
Michigan Tech engineers focus on lithium's unique mechanics at small scales to address battery defects. They find that at tiny lengths, lithium is much stronger than at macroscopic scales, relying on diffusion instead of dislocation motion to relieve stress.
Researchers are exploring seawater-based Na-ion batteries as a potential alternative to lithium ion batteries. A new study investigated electrode materials that increase voltage, capacity, and wattage. The development of these batteries could alleviate concerns around cobalt mining and reduce costs.
Researchers have created an ultra-thin ion-conducting membrane with high selectivity and conductivity, which can boost the power of flow batteries. The membrane overcomes the trade-off between ion selectivity and conductivity, resulting in improved flow battery performance.
A new study by NIMS researchers reveals that a Si anode composed of commercial Si nanoparticles in solid electrolytes exhibits excellent electrode performance, approaching that of film electrodes. This breakthrough enables low-cost and large-scale production of high-capacity anodes for all-solid-state Li batteries.
Researchers have proposed new concepts for in situ formed and artificial SEIs to fundamentally modulate the electrochemical characteristics of zinc. The interfacial design enables reversible and dendrite-free Zn plating/stripping, resulting in excellent cycling stability with negligible capacity loss.
Researchers from POSTECH have successfully developed a flexible battery with thin and three-dimensional organic electrode, increasing energy density by four times. The new technology uses a three-dimensional copper collector to lower the weight of a battery by 10 times more than conventional copper collectors.
The collaboration supports a four-year PhD programme to improve Li-S battery cycle life, funded by EPSRC and Swansea University. The partnership aims to promote Wales as a leading commercial production site for lithium sulfur cells.
Argonne researchers used a machine learning algorithm to relate known molecular structures to larger data sets, reducing computational costs while maintaining precision. The approach improved the accuracy of predictions about battery electrolyte candidates, enabling scientists to identify potential materials for next-generation batteries.
Scientists have developed a novel polymer binder with single lithium-ion channels that effectively immobilizes polysulfide intermediates, maintaining the structure integrity of sulfide cathodes. The binder improves Li-S battery performance by increasing energy density and capacity retention.
A new theory by Assistant Professor Kyle Smith predicts how fluid flow affects molecule reaction at porous electrode surfaces in redox flow batteries. The research enables prediction of mass transfer coefficients based on microscopic pore structure, enabling engineers to design optimal structures.
Researchers from Peter the Great St.Petersburg Polytechnic University have successfully printed electrodes for miniature li-ion batteries using an inkjet printer. The proposed technological approach utilizes a lithium and manganese-enriched cathode material, which can lead to further miniaturization of these power supplies.
A new power-saving chip developed by UC San Diego engineers significantly reduces the need to replace batteries in IoT devices and wearables. The wake-up receiver wakes up devices only when necessary, allowing for reduced power use and increased battery life.
Researchers develop a versatile yet affordable battery membrane technology using AquaPIMs, enabling long-lasting and low-cost grid batteries. The new membrane reduces costs by eliminating expensive fluorinated polymer membranes, making flow batteries more viable for widespread adoption.
A team led by Chongmin Wang at the Pacific Northwest National Laboratory found that certain compounds in the electrolyte prompt the growth of dendrites and whiskers. By manipulating the battery's ingredients, they hope to prevent their growth and eliminate a major obstacle to widespread use of lithium metal batteries.
Researchers build robots entirely from smaller robots called smarticles to unlock a new locomotion technique, enabling movement in response to stimuli. The supersmarticle, formed by five smarticles, can navigate mazes and change shape on demand.
A new study found that mobile technology alters how people view the outside world based on battery life and charging points. Battery icons shape daily activities and user identities, with full batteries linked to feelings of positivity and control, while low batteries induce anxiety and discomfort. The research reveals a strong social ...
Researchers developed a single-layer separator using bacterial cellulose nanofiber, achieving 80% capacity retention after 1,000 cycles. The new separator's cycle-life is superior to commercial multilayer separators with a more sustainable manufacturing process.
Acetic acid irrigation after button battery removal may prevent continued tissue injury and long-term complications in children. A recent study found that irrigation with dilute sterile vinegar, 0.25% acetic acid, improved mucosal appearance and prevented esophageal complications.
Researchers propose atom-to-atom strategy to address electrode-electrolyte contact issue in solid-state Li batteries. By creating epitaxial interfaces, they achieve intimate contact between solid electrolytes and electrodes, resulting in improved rate performances and energy density.
Researchers have developed a new electrolyte regulation strategy for Li-O2 batteries using hydrophobic silica colloidal particles. The strategy prevents lithium dendrite growth and corrosion, achieving a 980-times better anticorrosion effect and stable long-life electrochemical performance.
Binghamton University has acquired a $1.75 million HArd X-ray Photoelectron Spectroscopy system, the third of its kind worldwide and first outside Europe. This HAXPES system allows researchers to analyze materials without disassembling them, providing detailed information about chemical and electronic structures.
Researchers from NUST MISIS have successfully turned hogweed into a material for supercapacitors, demonstrating its potential as a sustainable alternative for energy storage. The processing technology involves treating the plant stems with hydrochloric acid and carbon dioxide to create a porous structure suitable for electrodes.
A new rechargeable CCNY aqueous battery has been developed with a voltage of 2.45-2.8V, exceeding the 2 V barrier in aqueous zinc chemistry. The alkaline MnO2|Zn battery is expected to break the dominance of flammable and expensive lithium-ion batteries.
The Stanford group's battery captures blue energy by releasing sodium and chloride ions, then reincorporating them through rapid wastewater and seawater exchanges. The technology has shown 97% effectiveness in capturing salinity gradient energy over 180 cycles.
Researchers from UCLouvain have discovered a new material, LiTi2(PS4)3 or LTPS, which shows the highest lithium diffusion coefficient ever measured in a solid. This discovery is an important step towards developing all-solid-state batteries with improved performance.
Researchers at Tokyo Tech create sensitized thermal cells (STCs) that can generate electric power using the Earth's crust heat. The team found that the battery can recharge itself when opened, making geothermal energy a promising renewable source.