Articles tagged with Electrodes
Researchers at MIT have created tiny, bioresorbable batteries that can power ingestible electronic devices, such as RFID tags and capsules that stimulate ghrelin production, for up to three days. The batteries, made from magnesium and molybdenum trioxide, can be fully broken down and absorbed by the body, reducing environmental impact.
Researchers at Nagoya University developed a new way to lower the resistance of p-type GaN contacts by depositing an ultrathin magnesium layer and applying a brief heat treatment. This approach achieves a contact resistivity of (1–3) × 10⁻⁴ Ω cm², a significant improvement over existing methods. The new process has promise for accelera...
Carefully controlled sulfidation boosts supercapacitor electrode performance by guiding distinct structural phases and revealing a heterojunction composition that delivers enhanced energy storage. NCF-S95 achieves high specific capacity and cycle stability, showing promise for next-generation supercapacitor materials.
Researchers developed a skin-worn Janus bioelectrode that uses gradient impedance to suppress electromagnetic interference and maintain signal quality. The electrode achieved high recognition accuracy for human motion states when combined with electromyography and electrocardiography signals.
Researchers analyzed 49 journal articles on bacterial cellulose-derived carbon electrodes for supercapacitors, finding that preservation of the nanofiber network and mechanical properties are crucial for performance. The study highlights BCC's potential to outperform commercial activated carbon under comparable conditions.
A Korean research team identified surface oxidation occurring during dehydration as the true cause of performance degradation in promising next-generation battery materials. They developed a new liquid-phase bubbling dehydration process that suppresses surface oxidation and improves battery performance.
A research team led by Prof. Yongtaek Hong developed a high-performance transparent organic light-emitting diode (OLED) incorporating highly conductive transparent metal mesh top electrodes fabricated using a selective metal deposition technique. The electrodes achieved high optical transparency of 93-99% and low sheet resistance, maki...
The City University of Hong Kong has developed a new generation of aqueous zinc-based batteries offering improved safety, higher power, lower cost and environmental sustainability. The breakthrough addresses large-scale energy storage challenges, providing ideal backup power for data centers.
Researchers designed contact lenses with electrodes to deliver mild electrical signals to the brain, reducing behavioral and physiological signs of depression. The treatment showed comparable improvements to Prozac in mice.
Max Planck researchers have discovered how microscopic dendrites induce fractures in solid-state batteries, leading to short circuits. By understanding the counterintuitive phenomenon of dendrite formation, they've identified potential strategies to prevent or delay cracking.
Researchers created a new polymer electrode that conforms to the skin, is comfortable, and can pick up ECG signals without gel or adhesives. The technology performed comparably to existing sensors in proof-of-concept testing, showcasing its potential for practical and cost-effective health monitoring applications.
Researchers at USC, Caltech, and UC Irvine have developed a two-way brain interface that allows patients to control wearable robotic legs using their thoughts. The system accurately detected brain signals indicating the intent to walk about 92% of the time and restored walking sensations with about 93% accuracy in an early proof-of-con...
Recent progress in advanced energy manufacturing highlights 3D printing's potential to redefine next-generation lithium batteries. The technology enables precise control over three-dimensional structures, improving ion-transport pathways and mechanical robustness.
Researchers developed micro-pillar patterned electrodes with ordered ionomer structures to improve proton conduction and oxygen delivery, enhancing fuel cell performance. The design enabled robust operation under dry conditions and maintained electrochemical surface area, outperforming conventional electrodes.
Researchers have developed a 3D electrode inspired by an aquatic plant, which captures and transports gas bubbles to increase hydrogen production. The design achieved a current density eight times higher than common flat electrodes, collecting 53.9% more hydrogen.
The new dynamic shielding layer allows the sensor to focus on specific areas when needed, achieving a 104.56% increase in detection depth. The sensor can also detect approaching objects from over 90mm away, providing a vital split-second for robots to avoid collisions.
Researchers found that implanted cuff electrodes can trigger unintended nerve stimulation during MRI, causing discomfort or pain. The study recommends more refined guidelines and careful safety considerations to mitigate this risk.
Xiwen Gong and Zhen Xu, both from the University of Michigan Engineering, received the award for developing optoelectronics and histotripsy, a cancer treatment using sound waves. The new treatment can spare patients from chemotherapy and radiation therapy.
Researchers review how torrefaction converts biomass into versatile precursor for advanced functional materials. The process improves durability, electrical properties, and surface chemistry, enabling specific technological uses.
Researchers at Jeonbuk National University have developed a new Prussian-blue based electrode that can effectively remove cesium from water. The electrode, made by combining Prussian blue with chemically treated carbon cloth, demonstrates high capacity for cesium adsorption and excellent reusability.
Researchers developed a new nickel-iron battery that can recharge in seconds and achieve over 12,000 cycles of draining and recharging, equivalent to 30 years of daily recharges. The technology uses tiny clusters of metal patterned with proteins on a graphene aerogel substrate.
Researchers introduce a novel fabrication technique to create high-resolution, low-resistance graphene electrodes for transparent and flexible devices. The method achieves exceptionally low electrical resistance and high pattern fidelity without etching-induced defects or chemical contamination.
Electrospinning fabricates electroactive fibrous scaffolds that mimic the structure of the extracellular matrix while providing electrical activity, enabling non-invasive and self-powered tissue repair. This technology promotes diverse intelligent applications in tissue regeneration, including conductive, piezoelectric, and triboelectr...
Researchers developed an anode-free lithium metal battery that delivers nearly double driving range using the same battery volume. The battery's volumetric energy density of 1,270 Wh/L is nearly twice that of current lithium-ion batteries used in electric vehicles.
A new hybrid anode technology has been developed that delivers higher energy storage while reducing thermal runaway and explosion risks. The 'magneto-conversion' strategy applies an external magnetic field to ferromagnetic manganese ferrite conversion-type anodes, promoting uniform lithium ion transport and preventing dendrite formation.
Researchers found that sodium-ion batteries using hard carbon negative electrodes can reach faster charging rates than lithium-ion batteries, thanks to the pore-filling mechanism. This process is limited by the efficiency of ion aggregation within the electrode's nanopores, which requires less energy for sodium insertion.
Researchers at Linköping University have successfully created electrodes from conductive plastics using visible light, eliminating the need for toxic chemicals. The technology allows for the creation of flexible electronics and biocompatible sensors on various surfaces, including skin.
Researchers developed three advanced strategies to create ordered membrane electrode assemblies for high-efficiency anion exchange membrane water electrolysis. The first strategy uses nanoimprinting, while the second employs integrated membrane electrodes. The third strategy leverages 3D interlocked interfaces, achieving exceptional pe...
Researchers have developed a new acoustic wave-producing technology on an electronic chip, enabling customizable curved waves for trapping objects, routing wave information, and transporting fluids. This innovation has significant potential in medical applications, such as noninvasive surgery and biosensors.
Researchers from POSTECH found that aluminum reduces internal structural distortion in cathodes, preventing oxygen holes and shortening battery life. By adding a small amount of aluminum, the team extends battery lifespan while improving energy density.
Researchers developed a scalable solution using a perforated Cu current collector to induce a regularly arranged micropore structure, enhancing ion diffusion and mechanical stability in SiOx/Artificial Graphite electrodes. This design improvement leads to improved electrochemical performance for fast-charging and long-life batteries.
A new anion-exchange-membrane water electrolyzer technology has been developed to address the degradation issue in membrane electrolyzers. This innovation combines the efficiency of simple caustic or alkaline electrolytes with the low-cost material advantages of solid polymer membranes.
A new, affordable sensor detects toxic perchlorate in water with rapid accuracy, offering a solution for better environmental monitoring and public health. The sensor's design combines precision molecular engineering with practical field applications to improve safety.
A new alloy design strategy for metal alloy negative electrodes has improved the performance and durability of next-generation solid-state batteries. The design enhances lithium ion movement, leading to faster charge-discharge rates and longer battery lifespan.
Researchers at South China University of Technology develop a method to solve unstable anode:electrolyte interfaces using digital light processing (DLP) 3D printing. The resulting batteries retain over 91% capacity after 8,000 cycles and achieve stable cycling over 2,000 hours.
Researchers at Tampere University discovered that quantum scars enhance electron transport in open quantum dots, enabling electrical conduction in nanoscale components. This breakthrough paves the way for developing efficient microchips and potentially new types of qubits for quantum computing.
Researchers developed a dynamic soft electrode called NeuroWorm that enables wireless steering of implanted devices via external magnetic fields. This allows for noninvasive repositioning of implants, potentially eliminating surgeries due to drift or misplacement.
A deep learning approach called Electrode Net optimizes porous-electrode design without sacrificing accuracy. The method achieves high predictive accuracy and speeds up computation time by 96%, enabling rapid screening of large design spaces.
A team of researchers proposes hydroxyl adsorption as a selectivity descriptor for electrocatalytic nitrate reduction to ammonia over copper-based catalysts. They found that more negative potentials and lower NO3- concentrations can improve ammonia selectivity.
Researchers from Tohoku University have discovered a new material that can conduct both protons and electrons efficiently at intermediate temperatures. The material, titanium dioxide doped with niobium, enhances proton conductivity by up to 10 times, making it suitable for next-generation fuel cells and hydrogen separation membranes.
Scientists investigated how Pr content impacts perovskite oxide crystal structure and oxygen exchange. Higher Pr content led to disorder phase transition and improved orbital hybridization, accelerating oxygen exchange. The discovery provides guidance for designing high-performance SOEC anodes.
Recent advances in biofabrication and biomedical electronics have led to the development of biohybrid-engineered tissue (BHET) platforms, turning passive constructs into intelligent systems. These platforms show promise in diverse applications, including brain organoids and cardiac tissues, blurring the line between biology and machine.
Researchers at Rice University found that electrode materials' thermodynamic properties impact energy flow and performance differently. They showed that even with similar structures, some materials degrade faster under identical cycling conditions due to uneven lithium flow.
A novel electrochemical microfluidic workstation detects additive concentrations in acidic copper plating solution with average relative errors below 10%. The system reduces single-test solution consumption to 220 microliters, enabling online monitoring of process stability and reliability.
Scientists have created a novel method to distinguish between healthy and senescent cells using electric fields, marking a fresh start in ageing research. The frequency-modulated dielectrophoresis (FM-DEP) technique is label-free, rapid, and easy to apply, allowing for the characterization of cell type by measuring the cutoff frequency.
Researchers at POSTECH have developed an interlocked electrode-electrolyte system that forms covalent chemical bonds between the electrode and electrolyte, maintaining long-term stability. The IEE-based pouch cell demonstrated significantly higher energy density compared to traditional lithium-ion batteries.
A new hairlike electrode made of 3D-printed hydrogel material has been developed to monitor brain activity for extended periods without the need for gels or skin preparation. The device's lightweight and flexible design allows for stable, high-quality recordings and minimizes discomfort, making it suitable for chronic monitoring.
Researchers at Shinshu University have developed a double-helical fiber sensor design that places both electrodes on one end, addressing the mechanical challenges of traditional wearable sensors. The new design enables durable, flexible sensors suitable for tracking finger gestures, facial expressions, and gait movements.
Researchers at UCLA Health are launching a clinical trial to test whether wearable nerve stimulation can ease ADHD symptoms in children with prenatal alcohol exposure. The study aims to improve focus and behavior by gently stimulating the trigeminal nerve, which is linked to attention and executive function.
Scientists at EPFL create a flexible auditory brainstem implant that closely conforms to the curved surface of the brainstem, enabling better tissue contact and reducing side effects. The device has been successfully demonstrated in macaques, showing promising results for high-resolution prosthetic hearing.
Researchers developed an intelligent lithium plating detection system using a Random Forest machine learning algorithm, analyzing pulse charging data to identify subtle electrical signatures. The system achieves high accuracy and can be implemented without modifying existing battery systems.
A team of researchers, led by Jean-Paul Noel, has discovered that the brain's motor area largely coincides with the onset of intention. The study used a brain-machine interface to separate intentions from actions in a paralyzed participant, revealing a compressed temporal binding between intention and action.
A study presents a versatile electrodynamics simulation model to analyze driving forces in partially filled electrodes, optimizing structural parameters of digital microfluidic chips. The model reveals the effects of dielectric layer parameters, droplet electrical properties, and substrate spacing on droplet driving performance.
Researchers have developed a new understanding of electrolyte wetting in advanced lithium-ion batteries, revealing the impact of manufacturing processes on wetting behavior. The study provides insights into permeability and capillary forces, offering concrete guidance for optimizing production processes.
Researchers developed a method to detect epileptic seizures in humans using canine EEG data. The approach leverages feature similarities across species and modalities, reducing input space discrepancies. Euclidean alignment and knowledge distillation are key components of the proposed joint alignment mechanism.
Researchers have developed a new understanding of electrolyte wetting in advanced lithium-ion batteries, addressing a critical bottleneck in manufacturing. The study's findings reveal that manufacturing processes impact wetting behavior through key parameters like permeability and capillary forces.
Researchers developed a streamlined process for converting CO₂ into carbon monoxide with record-breaking efficiency, cutting down processing time from 24 hours to 15 minutes. The new method uses low-cost pigment-based catalysts and offers a promising pathway for carbon neutral energy production.
A team of chemists from Virginia Tech found a way to visualize the intricate structure and chemical reactions of battery interfaces using an X-ray beam line. This breakthrough enables researchers to gain better control over these critical surfaces, potentially leading to cheaper, higher performance batteries.
Researchers at UT Health San Antonio are among the first to use adaptive deep brain stimulation technology that adjusts treatment based on a patient's symptoms. This innovative approach offers improved therapy and symptom optimization for patients with Parkinson's disease, dystonia, epilepsy, and essential tremor conditions.
Researchers at Saarland University and ZeMA are developing smart film actuator technology using thin silicone films that can be precisely controlled to vibrate, flex, or press. These films enable wearable textiles to provide haptic feedback for enhanced VR gaming experiences and industrial gloves to respond to hand gestures.