Articles tagged with Electrodes
A new cellulose nanofiber coating offers enhanced water resistance for flexible electronic devices, allowing them to withstand hundreds of bending cycles and underwater exposure. The coating's unique properties make it an ideal solution for medical devices used in emergency disaster response situations.
Researchers at MIT have discovered three ways bubbles form and release from porous electrodes, which can be controlled by adjusting surface treatment. The team found that the wettability of the surface is crucial in determining bubble formation, allowing for precise control over system performance.
University of Utah professor Tao Gao's discovery reveals physics behind lithium plating and enables prediction of its occurrence. The breakthrough could lead to faster charging times for electric vehicles and smartphones, reducing charging time from over an hour to under 10 minutes.
The new battery has an energy density of 24 Wh/kg, ten times higher than previous prototypes, and a stiffness of 25 GPa. This breakthrough paves the way for 'massless' energy storage in vehicles and consumer electronics.
A team of researchers developed an ultrasmall needle-electrode technology called 'STACK' that enables high-quality brain recordings in mice with a high signal-to-noise ratio. The device offers improved biocompatibility and minimized tissue damage, making it suitable for long-term and safe chronic recordings.
Researchers have created a more powerful, fast-charging supercapacitor with improved connectivity and recyclability using affordable tin. The material enhances the properties of cobalt oxide-based electrodes, leading to increased conductivity and promising practical applications.
Researchers at MIT have developed a way to prevent dendrite formation in solid-state lithium batteries, potentially unlocking the potential of high-powered batteries. The team created a semisolid electrode with a self-healing surface, allowing for high current densities without dendrites.
A new manufacturing process developed by Georgia Tech researchers allows for the mass production of solid-state batteries using nonflammable ceramic electrolytes. This breakthrough could lead to lighter, safer, and more energy-dense batteries, potentially reducing costs and increasing efficiency.
Researchers at EPFL have developed a retinal implant that uses electrodes to stimulate retinal cells, allowing blind individuals to see simplified images in black-and-white. The system has been tested virtually using virtual reality simulations and has demonstrated promising results, paving the way for potential human trials.
Researchers developed a technique to manufacture fiber electronic components with desired electrode structures by wrapping electrodes around thread. The resulting fiber photodiodes can detect light and measure the wearer's pulse from their fingertips.
Researchers at the University of Oregon have discovered a fractal network of connecting neurons in the brain, which balances energy costs to facilitate communication between neurons. The study's findings have implications for designing implants to treat macular degeneration and other retinal diseases.
Researchers from INRS have developed a new approach for foldable and solid electrochromic devices using silver nanowires coated with compact gold shells. The device demonstrates high stability and flexibility in harsh environments, overcoming the limitations of traditional indium tin oxide-based devices.
Researchers found that modifying the surface of electrodes with bismuth can significantly increase electrical current, driving the reactions that split water into oxygen and hydrogen. This process could lead to a clean and sustainable energy future.
Researchers at University of Chicago and Brookhaven National Laboratory develop a new method to improve photoelectrodes for producing solar fuels. By modifying the surface composition of bismuth vanadate electrodes, they found that surfaces with more bismuth atoms favor water splitting reactions.
A team of researchers at Tokyo Tech has designed a flexible and free-standing terahertz sensor array that can image irregularly shaped objects. The camera patch sheet can be easily cut into smaller sensors for better coverage, showcasing its potential in industrial applications such as quality control operations.
Scientists at IPC PAS designed a novel solution by accelerating ion transport in narrow pores to charge supercapacitors faster. They presented slit-like pores with sizes slightly larger than ions and achieved promising results through complex computer simulations and experiments.
Researchers propose a new strategy to explore electrochemical process on electrode surfaces using operando surface science methods. They successfully visualize intercalation of super-dense multilayer anions into graphite electrode surface region, revealing a distinct electrochemical process in the surface region.
A research team observed the internal evolution of materials inside solid-state lithium batteries as they charged and discharged using ultrabright X-rays. The detailed 3D information may help improve reliability and performance of the batteries, which use solid materials to replace liquid electrolytes in existing lithium-ion batteries.
A research team observed internal evolution of materials in solid-state lithium batteries using X-ray tomography. The operando synchrotron imaging revealed how dynamic changes at electrode interfaces determine battery behavior. Understanding these dynamics is crucial for improving the reliability and performance of solid-state batteries.
A research team has developed new nanostructured electrodes to split water molecules under sunlight, paving the way for efficient green hydrogen production. The electrodes, made with titanium dioxide and cobalt oxide, can absorb up to 50% of visible light and produce hydrogen through photocatalysis.
Researchers at the University of Michigan have made a significant breakthrough in electron transfer for grid-scale batteries, which could lead to more efficient and cost-effective energy storage. The study found that bridging plays a critical role in improving the reaction rate of flow batteries.
Researchers at the University of Illinois have developed a new electrochemical reaction using polymers to improve CO2-to-ethylene conversion efficiency. The study found that the new polymer-entrained electrodes produced more stable chemical intermediates, resulting in up to 87% ethylene production, surpassing previous reports.
Researchers at POSTECH developed a new liquid metal ink that can withstand harsh deformation and maintain electrical conductivity, enabling the creation of flexible electronics. The ink was successfully printed on various substrates, displaying negligible resistance changes even when stretched up to 500%.
Researchers at Ohio State University have discovered a cheaper and more efficient way to conduct a chemical reaction that converts sugar into biofuels. The new method uses less expensive and simpler helper molecules, or cofactors, which are essential for energy conversion in cells.
Researchers used a special backpack to monitor brain waves while participants walked around an empty room, finding hidden spots. The study found that brain waves flowed in a distinct pattern suggesting the brain mapped out physical space and boundaries.
A new UCLA study suggests that our brains generate a common code to mark where other people are in relation to ourselves. The research, published in Nature, used brain electrodes to observe how patients navigated physical spaces and monitored others nearby.
Scientists have developed a new metallic glass electrode made of thin palladium-based metallic glass films, which are 85% more efficient in oxidizing methanol than platinum-based analogs. The film is also resistant to corrosion and could replace existing materials in the energy sector.
A new study on people with amputations using bionic hands for over a year found that the brain never shifted its perception of touch sensations to match the prosthetic thumb. The participants' brains persisted in perceiving the sensation in other locations, such as their middle finger or palm.
Researchers developed a non-toxic hydrothermal treatment that enhances conductivity of PEDOT:PSS films by 250 times, making them suitable for biomedical applications.
Researchers have discovered that tiny bubbles on electrodes can facilitate electrochemical reactions, leading to faster pollutant removal and chlorine production. The formation of hydroxide anions in the bubble's corona accelerates these processes, making them more efficient than usual.
Researchers developed high-resolution implants consisting of 1024 electrodes to generate artificial images, enabling the recognition of shapes, lines, and letters in sighted monkeys. The technology aims to restore vision in blind people with intact visual cortex, significantly improving their independence.
Researchers at Netherlands Institute for Neuroscience developed high-resolution brain implants that enable recognition of artificially induced shapes and percepts. The breakthrough technology allows for a rudimentary form of vision restoration, enabling profoundly blind individuals to navigate and interact more easily.
A new study demonstrates a high-definition brain prosthesis that can recreate complex shapes and letters in the minds of macaque monkeys. The device, containing 1024 electrodes, successfully evokes phosphenes and allows animals to recognize patterns.
Researchers have developed a method to pattern hundreds-of-meters-long multimaterial fibers with embedded functional elements, enabling the creation of customized devices. This breakthrough could pave the way for new fiber-based devices and smart textiles.
Thicker electrodes with greater surface roughness improve resistance switching memory cell characteristics. The study found that such electrodes reduce forming and switching voltages, increase endurance to 50 million cycles, and enhance device performance.
Researchers at the University of Texas at Dallas are working on a new brain implant that aims to restore vision to people with blindness. The device uses small electrodes to stimulate neurons, producing phosphenes that can help individuals recognize objects and navigate their surroundings.
A new method developed at KAUST uses laser beams to produce uniform, three-dimensional graphene electrodes with high porosity and surface area. The electrodes exhibit excellent electrocatalytic activity and distinguish paracetamol and other compounds. Researchers plan to optimize the fabrication of sensors and expand their applications.
Researchers at Kumamoto University developed a new electrochemical system to measure antioxidant capacity in food, eliminating complex separation and extraction steps. This system allows for easy analysis of fat-soluble antioxidants in colorful or cloudy samples without extensive equipment or special treatment.
Researchers used conductive fillers like single-walled carbon nanotubes to improve battery performance. The study found that combining NCM electrodes with as little as 0.16% by weight of SWCNT produced good electrical conductivity.
Researchers at DGIST developed a 3D digital twinning platform to analyze all-solid-state battery interfaces, reducing defects and improving performance. The technique uses detailed 3D replicas of the real thing, capturing structural analyses and validating efficacy.
Researchers at KAUST developed a new material that significantly improves the energy density of supercapacitors, enabling quick bursts of energy. The material uses covalent organic frameworks (COFs) with carefully selected molecular functional groups to overcome conductivity limitations.
Researchers at Dartmouth College developed a smart tablecloth that can detect non-metallic objects such as fruits and liquids using an 'implicit input' technique. The system achieved a 94.5% accuracy rate in testing, with notable success in distinguishing between different types of liquids and fruits.
Neural interface electrodes play a crucial role in studying the nervous system and developing potential treatments for diseases. A new set of guidelines has been established to standardize the testing of these electrodes, enabling transparent reporting and promoting an efficient scientific process.
A POSTECH research team has developed a faster charging and longer lasting battery material for electric cars. They proved that forming an intermediate phase during charging and discharging can generate high power without losing energy density or reducing particle size, enabling the development of long-lasting Li-ion batteries.
Materials scientists developed a method to spray graphene ink onto flexible substrates at a specific angle and temperature, creating micro-supercapacitors with excellent performance. The new design stores up to 2 times more charge per square centimeter than previous devices, making it suitable for wearable electronic skin devices.
Researchers discovered a new approach to control chemical reaction reactivity using a single gold electrode, which can behave like multiple functional groups by switching applied voltage. This 'electro-inductive effect' enables in-situ tuning of electronic property and reactivity in the middle of a reaction.
Researchers at Graz University of Technology have developed a sustainable hybrid supercapacitor made of carbon and aqueous sodium iodide electrolyte. The system achieves unexpectedly high energy storage capacity by storing all chemical energy in solid iodine particles, enabling fast charging and discharging processes.
Researchers have developed a new type of transistor that can emit strong light, overcoming previous limitations. By modulating the contacts and channel with separate three gates, the polarity and light emission can be controlled, showing great promises for multi-digit logic devices and highly integrated optoelectronic circuitry.
Researchers developed a new generation of microelectrode-array chips that can record electrical activity from up to 20,000 nerve cells simultaneously. The new chip enables comprehensive measurements of more than 1,000 cells at once, suitable for testing the effects of drugs and reducing animal experiments.
Researchers have developed a novel single-atom Pt catalyst that can operate stably at high temperatures, increasing electrode reaction rates by up to 10 times. This breakthrough could accelerate the commercialization of solid oxide fuel cells, next-generation eco-friendly power generation systems.
Researchers at Yokohama National University have proposed a fix to prevent stretched-out stretchable sensors from producing large errors in pressure movement measurement. The new sensors use a hard silicone shell to protect the soft porous silicone pressure sensor, allowing it to measure force without being overextended.
Researchers at Technische Universitßt Dresden have successfully developed printable organic transistors with high switching frequencies and adjustable threshold voltages. These breakthrough devices can be used to create complex logic circuits and enable flexible electronic applications such as RFID and high-resolution displays
The Rice University project aims to optimize the use of flexible nanoelectronic thread (NET) probes to record neuronal activity in different brain regions. The biocompatible probes can be implanted in various areas of the brain, enabling researchers to analyze complex patterns of neural dynamics over time.
Researchers at Texas A&M University have designed a new plant-based energy storage device that can store up to 900 times greater charge than state-of-the-art supercapacitors. The devices are also environmentally friendly, lightweight, and cost-effective, making them suitable for charging electric cars within minutes.
A team of researchers from the University of California, San Francisco, has made a significant breakthrough in developing a 'plug and play' brain prosthesis that enables individuals with paralysis to control devices using their brain activity. The device uses machine learning algorithms to match brain signals to desired movements, allo...
Researchers developed a smart eyewear that tracks eye movement and cardiac data, providing accurate measurements in everyday environments. The device uses washable hydrogel electrodes and pulse sensors, offering comfort and durability, with potential applications in health monitoring, virtual reality, and advertising analysis.
The researchers created a lightweight eye mask called Chesma with two kinds of fabric electrodes to track electro-oculography and cardiac signals. The mask can be integrated into various garments and tested for performance after multiple washings.
Researchers have developed a new rechargeable zinc battery that integrates into the structure of a robot to provide much more energy. The battery uses a network of aramid nanofibers and a water-based polymer gel, making it environmentally friendly and efficient.
Scientists at Okayama University developed a new technique to analyze dendrite formation in rechargeable batteries, improving safety. They discovered that quasimetallic Li clusters act as a buffer for dendrite formation in hard carbon electrodes, providing valuable insight into overcoming lithium dendrite formation limitations.
Researchers at RMIT University developed a simple method for making ultra-thin, cost-effective transparent electrodes that can block heat and conduct electricity. The new spray-on coatings rival current industry standards and could simplify the fabrication of smart windows and low-emissivity glass.