CIC energiGUNE’s Post

🔋 ⚡ Blended electrodes can be custom-designed for specific applications if synergistic effects are well understood. In our latest study, Dimitrios Chatzogiannakis (Destiny PhD Programme MSCA COFUND PhD) looks into charge transfer dynamics in blended electrodes. We show how current distribution between blend components is influenced by their individual voltage profiles and varies across SoC. And we also captured the "buffer effect" (charge exchange between components during relaxation) in operando XRD experiments conducted at ALBA Synchrotron! In collaboration with M.Rosa Palacin (INSTITUT DE CIÈNCIA DE MATERIALS DE BARCELONA (ICMAB-CSIC)) and Umicore.

!!!New article alert!!!!! Check out our new article in literature past week!!! This article published in Electrochimica Acta is a result of joint collaboration between Colorado School of Mines (Kasra Taghikhani, Prof. J.R. Berger, and Prof. Robert Kee), and National Renewable Energy Laboratory (Avtar Singh, Peter Weddle, Andrew Colclasure, and Kandler Smith). In this work, we investigated how the 2-D approximations in the coupled chemo-mechanical models influence the predicted behavior of NMC cathode particles. More specifically, the present work explores the implications of using plane-stress and plane-strain assumptions in 2-D as compared to simulating a full 3-D electrode particle. As alternatives to the pure plane-strain and plane stress approximations, two modified plane-strain assumptions are found to better approximate the fully coupled chemo-mechanical 3-D behavior. Link to the article: https://lnkd.in/gJdVVNFi

Really excited to share this new direction from my Ph.D. research, now published in #EESJournal. Modeling and experimental characterization of bipolar membranes for electrochemical carbon capture! This is the result of three years of really hard work across LBL and our collaborators Caltech, and I am ecstatic to see it out in the world. Story time: This was initially started as an effort to understand what reactive carbon species do inside of a BPM during CO2 reduction, really with the goal of measuring carbon crossover. But in 2021, when my undergraduate Andrew Liu observed substantial amounts of bubbles forming on the surface of our BPMs at pretty low applied potentials, we identified this new application. Meeting and talking with Eric Lees helped us identify we were liberating from our bicarbonate electrolytes CO2 using the proton flux from our BPM. Digging into the field, we found there was a lot of great work done on BPM carbon capture, but most of that work was done with suboptimal BPMs by today’s standards and without good potential sensing measurements. We wanted to see if, using potential sensing techniques and continuum modeling, we could deconvolute losses and understand what are the bottlenecks for this technology. We were able to work with Éowyn Lucas, Ph.D. in the Atwater Group at Caltech, who had been developing really beautiful experimental systems with integrated potential sensing to rigorously characterize BPMs immersed in varying carbon capture solutions! After a few months of her running these membranes, for carbon capture, we had some really amazing data to try to understand with continuum modeling. So that's what we did. We developed a representative continuum model of the system that was able to resolve local environments and fluxes, capturing a lot of previously unresolved phenomena, such as the presence of a field enhanced bicarbonate dissociation pathway at low applied potentials. Applied voltage analysis revealed that bubble management and improving water dissociation catalysis are key to advancing this technology! Using state of the art BPMs, one could theoretically achieve energy intensities < 100 kJ/mol CO2 at current densities exceeding 100 mA cm-2. We think this tech is very promising and our group is looking forward to exploring and optimizing reactors for this process. Always amazed by the power of BPMs to generate pH swings, and all of the energy and environmental applications that can be enabled by this capacity, especially with the next-generation BPMs that our group and others have been developing. Thanks to my advisors, longtime collaborators at Caltech, and my partners in crime Eric and Éowyn. This work would not be possible without funding by @doescience through @LiSA_Hub_DOE , and the facilities at Berkeley Lab and at the Resnick Institute at Caltech. As always, I am happy to answer any questions about this work! https://lnkd.in/gvYYmdfY

Navigating the Future of Lithium Batteries in 2024 🌟 🎉 Welcoming a New Era in Battery Technology As we step into 2024, it's fascinating to reflect on the progress made in lithium battery technology, especially when compared to the issues and challenges outlined in a pivotal research paper from the past. This Nature paper from 2001 had highlighted the intrinsic link between battery performance and the materials of the electrodes, underscoring the importance of the interfaces between electrodes and electrolyte in determining life cycle and safety. Today, we're witnessing how these insights have guided advancements in material science, leading to the development of more efficient, durable, and safer lithium batteries. 🔋 Revolutionising Electrode Materials The paper had specifically noted the critical role of materials in positive electrodes, with choices varying between rechargeable Li-metal and Li-ion batteries. The advancements in this area have been substantial. Modern research and development efforts have led to the creation of innovative electrode materials that enhance energy density and safety. The once common LiCoO2 has seen competition from newer, more efficient compounds that offer better performance and stability. Similarly, the quest for ideal negative electrode materials has evolved, with emerging technologies outperforming traditional graphite in terms of capacity and safety. 🔄 Adapting to New Challenges and Opportunities Reflecting on the paper's emphasis on the need for a fundamental understanding of interfacial chemistry and structure-property relationships, it's clear that current research is increasingly focusing on these aspects. Breakthroughs in understanding the chemical and mechanical stability of batteries at the molecular level have led to significant improvements in their performance and longevity. As we continue to confront the challenges associated with battery degradation and efficiency, the insights from past research remain crucial. This year and beyond, we can anticipate further exciting developments in lithium battery technology, driven by a deeper understanding of the materials and mechanisms at play. To read more about how far or close current battery technologies are from the issues outlined over 2 decades ago ➡️ https://lnkd.in/ebSeM89z

[💡R&D] Lithium–sulfur batteries (LSBs) demonstrate superior energy density, thanks to TUBALL™ slurry, making them promising candidates for next-generation energy storage. Chinese researchers have developed a high-loading SPAN electrode with enhanced integrity and charge transport, achieved through cobweb-structured nanotube networks and interactions between PDA and PVP. The battery exhibits stable cycle performance even at high loading, as detailed in an article published in Nano Macro Small. Read the article in full here: https://lnkd.in/edbFCUyK Learn more on graphene nanotube applications and uses: https://lnkd.in/epQtWN_W #randd #LSB #electrode #battery

⚡ Unlocking the Potential: 2D Self-Intercalated Materials in Electrochemistry! 🌐 Dive into the latest research on "Theoretical Evidence of #SelfIntercalated #2DMaterials for #Battery and #ElectrocatalyticApplications." 🔋 Read the full article: https://lnkd.in/gUKjP3Zn 📖 Download PDF: https://lnkd.in/g7ebVvZR #2DMaterials #Electrochemistry #EnergyMaterials 🔄 🔍 Key Insights: Explore the world of covalently bonded 2D self-intercalated transition metal chalcogenides (ic-2Ds) and their versatile properties in lithium-ion batteries (LIBs) and electrocatalytic hydrogen evolution reactions (HER). This theoretical study, backed by density functional theory calculations, unveils the potential of seven 3d-metal ic-2Ds as stable, conductive, and promising materials. 🌐 Applications Explored: LIB Electrodes: Ti7S12 and V7S12 emerge as potential anode materials with low Li diffusion barriers, suitable open-circuit voltages, and ultrahigh capacities. HER Catalysts: Cr7S12 and Co7S12 show promise for HER with moderate hydrogen adsorption strengths. 💡 Significance: This theoretical exploration paves the way for the practical application of ic-2Ds in various electrochemical energy conversion and storage applications, offering a new dimension to their role in advancing energy technologies. ⚙️ Join the conversation on the future of 2D materials in energy applications! #TheoreticalChemistry #EnergyStorage #Electrocatalysis #ResearchInsights 🌱

Our review paper "Ion Mobility in Crystalline Battery Materials" has been published in Advanced Energy Materials! 📚 This review critically examines potential factors affecting ion mobility in crystalline battery materials, shedding light on chemical trends in batteries concerning both charge carriers and host materials. 🧪💡 Fundamental questions are explored to deepen our understanding of ion mobility in different classes of materials. 🔋 Thanks to my co-authors Sebastian, Manuel, Johannes, Katrin, Katharina, Daniel, and Axel for their invaluable contributions, as well as to POLiS - Cluster of Excellence and Ulm University! #IonMobility #BatteryMaterials #Electrochemistry #ResearchPaper #AdvancedEnergyMaterials 

Whether for biological production of hydrogen or solar conversion of light to electricity, electrons are arguably the most basic currency of energy transformation. NREL’s Advanced Spin Resonance Facility has electronic paramagnetic resonance spectrometers that peer into the mysteries of an organism at the electron level. Researchers can probe subatomic, electronic, and magnetic properties of biological chemical materials relevant to catalysis, energy transfer, and conversion. Learn more about how this facility is advancing applied R&D of systems for generating sustainable low-carbon fuels, chemicals, and electricity: https://bit.ly/3RBNsiR

🌟 Breaking barriers in materials science! Researchers have achieved groundbreaking results with high-performance p-type V2O3 films using spray pyrolysis. These films boast outstanding conductivity (up to 1079 Scm⁻¹) and transparency (32-65% in visible light), setting a new standard for transparent conducting oxides. From solar cells to thin-film transistors, these innovations promise to reshape future technologies. Dive into the specifications of SPE https://lnkd.in/dTnnUTpE #MaterialsScience #Innovation #TechAdvancement Source: @Nature

#Manganese Ion Battery  Our recent research publication explores the Na1.25V3O8 nano-rods as an Intercalation-based cathode system for Mn-ion batteries (MIBs) and their potential to reversibly store Mn2+ ions in the layered structure is decoded effectively. The article is published in JMCA. 💡 To find out more about our research into an efficient and sustainable energy future, read the full article. #Energystroage, #Battery, #FutureTech Dr. Nithiananth Subramanian, Duong Tung Pham https://lnkd.in/eunUBNuc