Articles tagged with Cathodes
Asymmetric stresses within electrodes used in wearable electronic devices can lead to improved durability and lifespan of batteries. Researchers from the University of Warwick have found that varying coating properties on each side of double-sided coated electrodes can help mitigate high bending stress and improve mechanical resilience.
Researchers at Argonne National Laboratory are working on a new generation of lithium-ion battery materials, including manganese-rich compounds and spinel-type structures. These materials have the potential to improve energy density, safety, and cost-effectiveness, enabling widespread adoption of electric vehicles.
Multivalent metal-ion batteries using magnesium, calcium, zinc, and aluminum show great promise but face steep challenges. Researchers provide a roadmap for future work, highlighting key strengths and common misconceptions.
Researchers from the University of Texas at Austin have developed a cobalt-free high-energy lithium-ion battery with improved energy density and reduced cycle life. The new cathode is anchored by 89% nickel, manganese, and aluminum, increasing energy storage and potentially boosting electric vehicle range.
Researchers review recent progress in sulfur/carbon cathode materials and high safety electrolytes for advanced Li-S batteries. Effective strategies to solve technical obstacles like low cycling stability and safety issues are discussed.
Researchers developed a machine learning approach to predict seasonal fire risk in Africa, using data on ocean temperatures and land surface changes. Additionally, scientists found that charge loss in lithium-ion batteries is related to the inherent structural instability of the cathode's crystalline structure. A new microscope tool pr...
Researchers develop new type of cathode with high specific capacity and large energy density using interface strain engineering in a 2D graphene nanomaterial. The work showcases a promising strategy to utilize strain engineering for advanced energy storage applications.
Scientists at DGIST propose novel host structure called 'platelet ordered mesoporous silica' to trap lithium polysulfides and improve battery stability. The silica structure retains more sulfur, resulting in greater capacity retention and stability over 2000 cycles.
Researchers from SUTD have developed a new material that increases the lifespan of rechargeable batteries using sodium ion technology. The breakthrough addresses the global shortage of lithium resources and enhances energy density, enabling more efficient power supplies for electronic products.
Scientists have created a sodium-ion battery that can deliver high energy capacity and recharge successfully, keeping over 80% of its charge after 1,000 cycles. This breakthrough has the potential to replace rare and expensive lithium-ion batteries with more abundant and affordable materials.
Researchers at Peter the Great St.Petersburg Polytechnic University created a solid-state thin-film battery with high specific energy density, suitable for miniature devices like biosensors and smartwatches. The new technology uses Atomic Layer Deposition to produce lithium nickelate cathodes, improving performance and efficiency.
Researchers at SLAC National Accelerator Laboratory used computer vision and X-ray tomography data to understand how nickel-manganese-cobalt cathodes degrade over time. They found that particles detaching from the carbon matrix contribute significantly to battery decline, contradicting previous assumptions about making smaller particle...
A Korean research team has developed a high-performance cathode material for lithium-ion batteries by stabilizing the surface of over-lithiated layered oxides (OLO) using salmon DNA. The study improved catalyst performance and lifespan through integrated advanced analytical techniques.
Researchers created a commercially attractive advanced cathode material based on titanium fluoride phosphate, exhibiting high electrochemical potential and unprecedented stability at high charge/discharge rates. The discovery opens up new opportunities for practical applications of titanium-containing cathode materials.
A WSU research team has developed a unique protective layer around lithium anode, protecting batteries from degradation and allowing them to work longer under typical conditions. The innovation could make high-energy batteries more viable for next-generation energy storage.
Researchers at Virginia Commonwealth University will develop next-generation rechargeable batteries with a potential 300-500 cycle lifespan. The project aims to reduce costs and safety risks while increasing battery life.
Researchers at ITMO University propose a method to print lithium-ion battery electrodes on an inkjet printer, reducing their thickness by 10-20 times. This technology opens new possibilities for compact electronics and transformer devices, which is crucial for the development of foldable and extendable gadgets.
SPARKZ Inc. exclusively licensed five battery technologies from the Department of Energy's Oak Ridge National Laboratory, eliminating cobalt metal in lithium-ion batteries for more sustainable, fast-charging batteries. The partnership aims to accelerate electric vehicle production and grid energy storage solutions.
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.
Researchers at MIT have devised a lithium metal anode that could improve battery performance by reducing stress on the solid electrolyte layer. The new design utilizes a three-dimensional nanoarchitecture, allowing the lithium to flow like a liquid while maintaining its solid structure.
Researchers at Rice University have discovered a mechanism that protects cathodes from degrading in lithium-ion batteries by applying a thin layer of alumina, which also accelerates charging speed. This breakthrough could lead to more stable and efficient batteries for electric cars and grid storage.
Researchers found that intentionally adding defects to lithium-ion batteries can cause stress, leading to cracks and degradation. The study suggests a sweet spot for defect levels to optimize performance, contradicting previous findings.
Researchers at the University of Oxford and Seville have developed new cathode materials that prevent energy density loss in the first charge cycle, improving overall battery performance and safety.
Scientists at Rice University have discovered that placing specific defects in the crystalline lattice of lithium iron phosphate-based cathodes can broaden the avenues through which lithium ions travel. This could improve performance by up to two orders of magnitude and potentially lead to similar improvements in other types of 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.
Skoltech researchers created potassium-based batteries with record-high energy density and impressive stability, offering an alternative to lithium-ion batteries. The batteries charge in under 10 seconds and retain their capacity after thousands of cycles.
Researchers at Tianjin University develop a potential-tuned strategy for efficient synthesis of azoxy, azo- and amino-aromatics via aqueous selective reduction of nitroarene feedstocks over a CoP nanosheet cathode. The method yields products with up to 99% selectivity and 99% yield.
Researchers have developed a high-performance cathode made of an organic polymer for sodium-ion batteries, achieving excellent electrochemical performances. The new material outperforms current polymeric and inorganic cathodes in capacity delivery and retention.
Researchers at Argonne National Laboratory have developed a new mechanism to speed up lithium-ion battery charging using concentrated light. By exposing the cathode to white light, the charging time is reduced by a factor of two without degrading battery performance.
A multidisciplinary team at Argonne National Laboratory has developed a powerful technique to probe the crystalline structure of cathode materials in three dimensions. This breakthrough could lead to improved understanding and performance of next-generation batteries.
A new concept for an aluminum battery has twice the energy density of previous versions and is made of abundant materials, potentially leading to reduced production costs and environmental impact. The idea could be used in large-scale applications such as solar and wind energy storage.
Researchers at ETH Zurich have developed a flexible thin-film battery that can be bent, stretched and twisted without disrupting power supply. The new battery features a water-based gel electrolyte that is environmentally friendly and non-toxic.
Researchers at Georgia Tech have developed a new cathode and electrolyte system using transition metal fluorides and solid polymer electrolytes, showing remarkable stability and potential for safer, lighter lithium-ion batteries. The new design has more than double the lithium capacity of traditional cobalt- or nickel-based cathodes.
Researchers at Georgia Tech develop stretchy plastic electrolytes that enable new lithium-ion battery designs with less reliance on scarce metals. The new cathode and electrolyte system shows remarkable stability even at high temperatures, promising safer, lighter, and cheaper batteries.
A new £11.2 million research consortium led by Professor Saiful Islam at the University of Bath aims to develop next-generation lithium batteries for electric vehicles with improved cost, performance, and range.
Researchers at UT Austin aim to develop a lithium-ion battery that requires no cobalt while maintaining high energy density. A $3 million collaborative project funded by the US Department of Energy seeks to demonstrate low-cobalt battery technology in large cells and create a cobalt-free battery.
Researchers have designed a new polymer cathode material for ultrafast metal-ion batteries with superior characteristics, offering high energy density and impressive charge/discharge rate capability. The material successfully demonstrated excellent performance while charged and discharged at high current rates.
Researchers at Brookhaven National Laboratory have designed an organic cathode material with sulfur for lithium batteries, achieving higher energy density, cost-effectiveness, and environmental sustainability. The new material overcomes challenges associated with sulfur batteries by stabilizing it through an organic backbone.
Researchers at Tokyo University of Science developed a novel rock salt for use in rechargeable magnesium batteries, offering promising results as a cathode material. The synthesized rock salt shows excellent potential for use as the positive electrode material.
Scientists at Argonne National Laboratory have developed a new cathode coating that provides extra layer of protection for battery cathodes while maintaining electrical and ionical conductivity. The coating also prevents oxygen release and promotes structural stability, leading to potential energy output increases and longer lifetimes.
A team from Ohio State University has built a more efficient and reliable potassium-oxygen battery that can store excess energy from renewable sources. The battery can be charged at least 125 times, making it a potential solution for long-lasting energy storage in the power grid and cell phones.
Researchers have identified a new cathode chemistry that increases the energy density of lithium-ion batteries while maintaining improved safety. The discovery, which utilizes an aqueous electrolyte, has the potential to significantly increase the energy capacity of batteries without increasing weight or risk of fire.
The organic cathode offers more reliable contact with the electrolyte, extending cycle life and allowing for higher energy density. The flexibility of the organic cathode maintains intimate contact at the interface even as the cathode expands and contracts during cycling.
A new recycling process regenerates degraded cathodes from spent lithium-ion batteries, restoring their original capacity and cycle performance. The method uses eutectic lithium salts to dissolve degraded materials without adding pressure, reducing costs and safety concerns.
Researchers developed an Al anode design with Cu codeposition, improving cycling stability and capacity retention. The new battery configuration achieved a capacity retention of ~88% over 200 cycles with a high areal density cathode.
Engineers at University of Wisconsin-Madison have revealed new insights about the chemical reactions that power fuel cells, shedding light on their degradation issues. The study found that the rate-limiting step in fuel cell efficiency is not oxygen splitting, but rather how oxygen atoms find and enter vacancies at the surface.
Researchers at MIT developed a new 'hybrid' cathode combining two approaches to increase energy output per pound and liter, resulting in higher power density. The new material can already beat existing batteries in terms of energy density, paving the way for longer-range electric cars and portable electronics.
Researchers at Brookhaven National Laboratory have identified the causes of capacity fading in nickel-rich layered materials, which could lead to improved battery performance for electric vehicles. The team used multiple research techniques, including synchrotron light sources and machine learning, to pinpoint the problem and provide p...
Researchers summarize recent advances in 2D nanomaterials for electrodes in lithium-ion batteries, showcasing their high electrochemical and mechanical properties. The review highlights the potential of 2D nanomaterials as anodes and cathodes, with applications in high-performance energy storage devices.
Researchers have found a way to improve LiCoO2 cathode performance in Li-ion batteries by decorating it with BaTiO3 nanodots. The team discovered that the BTO dots create a special interface for Li ions to circulate easily, leading to improved stability and discharge capacity.
Researchers at the University of Houston have developed a high-energy magnesium battery with up to 243 watt hours per kilogram, outperforming earlier models. The new design uses a chloride-free electrolyte and organic cathode, enabling stable performance and high energy storage capacity.
The US Advanced Battery Consortium has funded an extension of the patented lithium-ion battery recycling process developed at Worcester Polytechnic Institute. The process can recycle spent Li-ion batteries and produce new cathode materials, including nickel-rich cathodes for commercial-grade automotive batteries.
Researchers at Drexel University have developed a stable cathode material that can hold polysulfides in place, maintaining energy density while reducing weight and production time. The new approach uses titanium monoxide nanofibers to immobilize polysulfides, enabling Li-S batteries to achieve superior performance through hundreds of c...
Researchers at Shinshu University developed a self-assembled monolayer coating that promotes efficient transportation within electrodes, suppressing side reactions in high-voltage lithium-ion batteries. The coating improved power density and cyclability, allowing the battery to maintain capacity even after 100 cycles.
Lithium trivanadate cathode thick films were successfully fabricated on garnet-type oxide solid electrolytes using aerosol deposition method. The resulting cells showed high reversible charge and discharge capacities, cycling stability, and safety, making LVO a promising candidate for high-capacity oxide-based solid-state batteries
Researchers have developed a way to increase operating temperature and use alternative materials to overcome thermodynamic barriers in lithium-oxygen batteries. The resulting cell achieves nearly 100% coulombic efficiency, a significant step towards commercial adoption.
Researchers at Ruhr-University Bochum gained new insight into the processes involving oxygen-depolarised cathodes, which consume less current than conventional systems. They found that reaction conditions change constantly during chlorine production and are not uniform throughout the electrode surface.
Scientists identified nanoscale defects as the cause of voltage fade in Lithium-rich NMC cathode materials. By combining experimental and theoretical approaches, researchers showed that heat treating the materials eliminated most defects, restoring original voltage.
Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries. By manipulating the reaction pathway through chemical substitution, researchers were able to make the material more reversible, increasing its energy density by tripling it.
A Northwestern University research team has discovered a new battery material with a record-high charge capacity, enabling smartphones and electric vehicles to last more than twice as long between charges. By adding oxygen to the traditional cathode compound, the battery achieves higher capacity and stability.