Vincent Pluvinage, PhD’s Post

🔋 CNT-Coated Al Foil: A Gamechanger in Sodium Ion Technology? The quest for better, more sustainable battery technology is intensifying, and CNT-coated aluminum foil is emerging as a pivotal innovation in the realm of sodium-ion batteries. 🔬 Innovative Research: Ongoing research is addressing the challenges of increasing cycle life and energy density in sodium-ion batteries. Among the promising developments, CNT (Carbon Nanotube) coatings on aluminum foil have shown remarkable improvements in performance metrics. (see graph attached) 📊 Why CNT-Coated Al Foil? Enhanced Cycle Life: CNT-coated aluminum foil significantly improves the longevity of sodium-ion batteries, ensuring more charge-discharge cycles without substantial capacity loss. Improved Energy Density: This technology helps in achieving higher energy density, making sodium-ion batteries more competitive with their lithium-ion counterparts. Superior Performance: As demonstrated in recent cycle test comparisons, CNT-coated foil outperforms traditional materials, offering better capacity retention over hundreds of cycles. #Cathode #Anode #Battery #Nanomaterials #BatteryTechnology

Graphene sponge is a three-dimensional porous network structure formed by cross-linking graphene sheets. It features high specific surface area, high electrical conductivity, excellent chemical stability, and thermal stability. The adsorption capacity of graphene sponge far exceeds that of traditional adsorption materials (which typically can only adsorb liquids up to about 10 times their own weight). It can adsorb up to 600 times its weight, meaning 1 gram of such sponge can absorb over 600 grams of liquid. Even after 10 cycles of use, it maintains consistent adsorption capacity. In addition to handling oil spills or organic pollutants, it can also recycle valuable pollutants such as crude oil, after recovering toxic liquids like benzene for centralized treatment. This achievement has been featured as a cover article in the top-tier journal "Advanced Functional Materials". Shortly thereafter, numerous domestic and international academic media outlets reported on this achievement, including "USA Online", "Materials Views", "Renewable Energy", Xinhua News Agency, and Sina. USA Online commented that graphene sponge could potentially become the first industrialized form of graphene. Currently, the laboratory has made significant progress, including the ability to produce graphene sponges of different densities and sizes, as well as compressible graphene sponges. The current technology is ready for pilot production. Graphene sponge has wide-ranging application prospects: in environmental protection for treating wastewater and purifying air; in energy applications as electrode materials for energy storage devices like supercapacitors and lithium-ion batteries. Additionally, graphene sponge could serve as sensors, catalytic carriers, sound absorbers, electromagnetic wave absorbers, and highly efficient composite materials. Elastic cylindrical graphene sponge JCGS-6-6 Dimensions: Diameter 6 mm, Height 6 cm Elastic cylindrical graphene sponge JCGS-25-2.5 Dimensions: Diameter 25 mm, Height 2.5 cm https://lnkd.in/gjNv-nih

Here is a summary of some metrics comparing graphite anode materials and hard carbon anode materials. More than 15 years ago, OneD Battery Sciences grew nano-silicon inside the pores of both types of anode materials for use in lithium ion batteries. Later, the SINANODE manufacturing process was perfected to efficiently and cost effectively grow nano-silicon inside the pores of EV-grade graphite particles from anode materials produced by several EV-qualified anode suppliers to EV cell factories. This year, hundreds of EV cells were built in three different formats and with three different types of commercial cathodes. The results are clear: SINANODE-processed graphite anode materials are easier to use in preparing slurries, coating EV anode electrodes and producing high energy density EV cell with excellent cycling performance, lower carbon footprint and significantly lower costs. #evbatteries #graphite #hardcarbon #silicon

Addressing Your Questions About Our Nano-LMPZD Slurry: Why Phosphazene? Many of you have asked about the role of Phosphazene in our newly launched nano-LMPZD slurry, and I'm here to provide some insights. 🔋 Why Phosphazene? 🔋 The integration of Phosphazene into our slurry is backed by robust scientific research. Phosphazene enhances fire resistance and forms a protective layer on the battery's cathode. This dual function is crucial in preventing thermal runaway—a significant risk with high-energy-density batteries—and in improving the overall stability of the battery system. Phosphazene is a flame retardant additive used in lithium-ion batteries, mainly because the P-N ring structure will absorb heat energy at a certain temperature and break down to open the ring, stop the battery temperature from rising, and then prevent thermal runaway Towards Safer High-Nickel Cells: By incorporating Phosphazene in our nano-LMPZD slurry, we're advancing the safety and reliability of high-nickel lithium-ion batteries. This move goes beyond simple enhancements; it's a transformative approach aimed at addressing the intrinsic safety challenges associated with high-energy-density cells. For more detailed insights into the benefits of additives like Phosphazene in battery technology, feel free to explore this link: https://lnkd.in/dZqDdPkA #BatteryTechnology #Battery #LithiumIonBatteries #Cathode #BatterySafety

🔋 Li-Polymer vs. Lithium-Ion: Which Battery is Right for You? In today's world, choosing the right battery for your devices can make all the difference. Li-Polymer and Lithium-Ion batteries both offer unique benefits, but which one should you choose? In our latest blog, we dive into: ⚡ Key differences in performance, durability, and safety 📈 How to choose the best option for your specific needs Check out the full blog to learn more and make an informed decision for your next project! 🚀 #BatteryTech #LiPolymer #LithiumIon #EnergyStorage #Innovation #TechSolutions

New publication in Sustainable Materials and Technologies: Surface-controlled deposition of discharge products in Na-O2 batteries using a defect-rich graphene cathode

Another cathode breakthrough from these South Korean researchers should provide respite for lithium battery manufacturing lines by decreasing costs and increasing safety. Prussian blue (PB), a well-known pigment used to dye jeans, has been recognized as an emerging material for next-generation batteries. This research team has made a significant breakthrough in the development of low-cost, high-performance lithium-ion batteries (LIBs) using PB, leading to significantly reduced battery prices. The study demonstrates a new electrolyte system that overcomes the limitations of PB's slow kinetics and valence state inactivation, enabling stable and efficient battery operation. In this study, the research team developed a novel polymeric cathode electrolyte interphase (CEI) layer through a ring-opening reaction of ethylene carbonate triggered by OH– radicals from structural water. This innovative approach significantly improves the electrochemical kinetics in organic electrolytes, achieving a specific capacity of 125 mAh/g with a stable lifetime over 500 cycles. The team's achievement is a game-changer in the development of LIBs, which are crucial for the widespread adoption of electric vehicles (EVs) and other energy storage applications. PB is a cost-effective and efficient material, comprising iron, carbon, and nitrogen. Its affordability and high ionic conductivity make it an attractive alternative for LIBs. This research not only overcomes the limitations of existing PB, but also contributes to more efficient and stable battery development in the future. This breakthrough has far-reaching implications for the battery industry, paving the way for the widespread adoption of PB as a next-generation cathode material. #climatechange #evcosts #safety #batteries #energystorage

This innovative design allows for stable operation across large areas by utilizing a carbon fiber catalyst, as opposed to a powder-type catalyst that is prone to detachment. Notably, this advanced electrode boasts a lifespan 100 times longer than conventional electrodes while maintaining optimal performance through the use of ruthenium instead of the more expensive platinum, resulting in significantly reduced manufacturing costs. Traditionally, electrochemical electrodes were manufactured by spraying a powder catalyst like carbon powder onto the electrode for fixation. However, this method posed challenges related to uneven application, leading to issues such as clumping or detachment of the powder. Conversely, carbon fiber-based electrochemical electrodes are gaining attention for their high thermal and electrical conductivity properties, as well as their ease of use across large surfaces. ~~ by JooHyeon Heo https://lnkd.in/eXF2keKE

Adding polymerized ionic liquid improves performance of perovskite solar cells

Advancing Polymer Electrolytes for Lithium-Ion Batteries 🔋 The future of lithium-ion battery technology hinges on breakthroughs in solid-state polymer electrolytes, which promise enhanced performance and improved safety compared to traditional solvent-based systems. A recent study explores the development of a glassy single-ion-conducting polymer—𝗣𝗟𝗶𝗠𝗧𝗙𝗦𝗜 (𝗯𝘆 𝗦𝗣𝗘𝗖𝗜𝗙𝗜𝗖 𝗣𝗢𝗟𝗬𝗠𝗘𝗥𝗦) —blended with a flexible polymer to overcome limitations in ion conductivity. This innovative blend achieves impressive ionic conductivities of up to 1 × 10–2 S/cm at 150°C by decoupling lithium-ion transport from the polymer’s sluggish segmental dynamics. Key highlights:  ⚡ High Li+ selectivity (transference number = 0.9) ⚡ Electrochemical stability up to 4.7 V ⚡ Promising alternative to current benchmark systems, with potential for faster charging and higher energy density These findings open up new possibilities for safer, high-performance batteries, especially for high-voltage, energy-dense applications. 🚀 Access the publication ➡ https://lnkd.in/d3TjZABa #lithiumbatteries #energytech #solidstateelectrolytes