<link>https://lmadec.com/</link></image><item><title>Experience</h1> <article> <h1>Experience</h1> <p>Sat, 15 Aug 2026 00:00:00 +0000</p> </article> <article> <h1>Impact of Graphite Properties and Electrode Formulation on Potassium-Ion Battery Performance and Storage Mechanisms</h1> <p>Thu, 30 Oct 2025 00:00:00 +0000</p> </article> <article> <h1>Cobalt and Nickel Nanocatalysts Confined inside Halloysite Nanotubes for Selective Hydrogenations</h1> <p>Wed, 04 Sep 2024 00:00:00 +0000</p> </article> <article> <h1>Significance of in situ X-ray tomography for analysing buried interfaces in solid-state batteries: A case study on a Li/Li symmetric cell with a polymer-based electrolyte</h1> <p>Wed, 17 Apr 2024 00:00:00 +0000</p> </article> <article> <h1>Impact of Milling Conditions on Hard and Soft Carbon Properties and Performance in Potassium-Ion Batteries</h1> <p>Thu, 04 Apr 2024 00:00:00 +0000</p> </article> <article> <h1>Advanced Nickel-Based Catalytic Materials on Hydroxyapatite: Effect of the Metal Particle Size on Tri-reforming of Methane</h1> <p>Fri, 23 Feb 2024 00:00:00 +0000</p> </article> <article> <h1>Nonaqueous potassium-ion full-cells: Mapping the progress and identifying missing puzzle pieces</h1> <p>Wed, 24 Jan 2024 00:00:00 +0000</p> </article> <article> <h1>A novel K-ion KVPO4F0.5O0.5/graphite full cell: Correlation between XPS SEI studies and electrochemical testing results</h1> <p>Wed, 25 Oct 2023 00:00:00 +0000</p> </article> <article> <h1>Impact of Hard Carbon Properties on Their Performance in Potassium-Ion Batteries</h1> <p>Tue, 02 May 2023 00:00:00 +0000</p> </article> <article> <h1>Novel Catalyst Composites of Ni- and Co-Based Nanoparticles Supported on Inorganic Oxides for Fatty Acid Hydrogenations</h1> <p>Sun, 23 Apr 2023 00:00:00 +0000</p> </article> <article> <h1>Operando Auger/XPS using an electron beam to reveal the dynamics/morphology of Li plating and interphase formation in solid-state batteries</h1> <p>Fri, 07 Apr 2023 00:00:00 +0000</p> </article> <article> <h1>Toward Highly Reliable Potassium-Ion Half and Full Coin Cells</h1> <p>Wed, 15 Mar 2023 00:00:00 +0000</p> </article> <article> <h1>Cross-section nano-Auger/SEM analysis to reveal bulk chemical/morphological properties of composites for energy storage</h1> <p>Tue, 07 Mar 2023 00:00:00 +0000</p> </article> <article> <h1>Composite Mn–Co electrode materials for supercapacitors: why the precursor's morphology matters!</h1> <p>Fri, 07 Oct 2022 00:00:00 +0000</p> </article> <article> <h1>Interfaces analysis in lithium solid-state batteries using operando Auger, XPS and ToF-SIMS</h1> <p>Tue, 04 Oct 2022 00:00:00 +0000</p> <div class="text-left"> <a id="button-ae0756ffb35d5a5c8e6c331b137b6d64" href="https://lmadec.com/presentations/IBA_solid-state-2022.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-4 py-2 text-base rounded-lg" role="button" aria-label="Presentation PDF" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M3.75 3v11.25A2.25 2.25 0 0 0 6 16.5h2.25M3.75 3h-1.5m1.5 0h16.5m0 0h1.5m-1.5 0v11.25A2.25 2.25 0 0 1 18 16.5h-2.25m-7.5 0h7.5m-7.5 0l-1 3m8.5-3l1 3m0 0l.5 1.5m-.5-1.5h-9.5m0 0l-.5 1.5M9 11.25v1.5M12 9v3.75m3-6v6"/></svg> </span> <span>Presentation PDF</span> </a> </div> </article> <article> <h1>Nickel Nanoparticles Immobilized on Pristine Halloysite: An Outstanding Catalyst for Hydrogenation Processes</h1> <p>Tue, 06 Sep 2022 00:00:00 +0000</p> </article> <article> <h1>Optimized electrode formulation for enhanced performance of graphite in K-ion batteries</h1> <p>Thu, 01 Sep 2022 00:00:00 +0000</p> </article> <article> <h1>K-ion batteries: role of K metal in half-cells and assembly of reliable full-cells</h1> <p>Tue, 05 Jul 2022 00:00:00 +0000</p> <div class="text-left"> <a id="button-a3488ba194e95cbdfa69e8d2e1238694" href="https://lmadec.com/presentations/fr-jp-kion-2022.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-4 py-2 text-base rounded-lg" role="button" aria-label="Presentation PDF" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M3.75 3v11.25A2.25 2.25 0 0 0 6 16.5h2.25M3.75 3h-1.5m1.5 0h16.5m0 0h1.5m-1.5 0v11.25A2.25 2.25 0 0 1 18 16.5h-2.25m-7.5 0h7.5m-7.5 0l-1 3m8.5-3l1 3m0 0l.5 1.5m-.5-1.5h-9.5m0 0l-.5 1.5M9 11.25v1.5M12 9v3.75m3-6v6"/></svg> </span> <span>Presentation PDF</span> </a> </div> </article> <article> <h1>Cross-section nano-Auger analysis to reveal bulk chemical/morphological information in composites for energy storage</h1> <p>Thu, 02 Jun 2022 00:00:00 +0000</p> <h2 id="hahahugoshortcode10s0hbhb"> <div class="text-left"> <a id="button-c82af533abc0d190566c81a25cda1f4a" href="https://lmadec.com/presentations/eMRS-cross-section-2022.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-4 py-2 text-base rounded-lg" role="button" aria-label="Presentation PDF" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M3.75 3v11.25A2.25 2.25 0 0 0 6 16.5h2.25M3.75 3h-1.5m1.5 0h16.5m0 0h1.5m-1.5 0v11.25A2.25 2.25 0 0 1 18 16.5h-2.25m-7.5 0h7.5m-7.5 0l-1 3m8.5-3l1 3m0 0l.5 1.5m-.5-1.5h-9.5m0 0l-.5 1.5M9 11.25v1.5M12 9v3.75m3-6v6"/></svg> </span> <span>Presentation PDF</span> </a> </div> </h2> </article> <article> <h1>Catalysis 🧪 2021-2023</h1> <p>Wed, 01 Dec 2021 00:00:00 +0000</p> <div class="project-page"> <h3 id="-overview">🔍 Overview</h3> <p>This project was an academic collobaration initiated by D. Pla (CNRS researcher at LHFA, UMR5069, Toulouse). The aim was to demonstrate that Ni and Co nanoparticles deposited on substrates (for catalysis) were in a metalic state using XPS which was a challenge as such materials are highly reactive to O2 and H2O traces.</p> <h3 id="-key-finding---my-contributions">🎯 Key Finding / 👤 My Contributions</h3> <p>I developped a specific XPS sample preparation and analysis which allowed demonstrating the partially metallic state of the Ni or Co nanoparticles in agreement with their catalytic properties.</p> <h3 id="-communication">📢 Communication</h3> <p>📄 4 publications</p> </div> </article> <article> <h1>Impact of the Salt Anion on K Metal Reactivity in EC/DEC Studied Using GC and XPS Analysis</h1> <p>Tue, 23 Nov 2021 00:00:00 +0000</p> </article> <article> <h1>A critical discussion on the analysis of buried interfaces in Li solid-state batteries. Ex situ and in situ / operando studies</h1> <p>Fri, 22 Oct 2021 00:00:00 +0000</p> </article> <article> <h1>XPS Analysis of K‑based Reference Compounds to Allow Reliable Studies of Solid Electrolyte Interphase in K‑ion Batteries</h1> <p>Wed, 29 Sep 2021 00:00:00 +0000</p> </article> <article> <h1>Surface Reactivity and Surface Characterization of the Layered β(III)-CoOOH Material: an Experimental and Computational Study</h1> <p>Thu, 15 Apr 2021 00:00:00 +0000</p> </article> <article> <h1>Complex Lithiation Mechanism of Siloxene and Germanane: Two Promising Battery Electrode Materials</h1> <p>Thu, 07 Jan 2021 00:00:00 +0000</p> </article> <article> <h1>Cross-Section Auger Analysis to Study the Bulk Organization/Structure of Mn-Co Nano-Composites for Hybrid Supercapacitors</h1> <p>Thu, 07 Jan 2021 00:00:00 +0000</p> </article> <article> <h1>Self-supported carbon nanofibers as negative electrodes for K-ion batteries: Performance and mechanism</h1> <p>Tue, 01 Dec 2020 00:00:00 +0000</p> </article> <article> <h1>Electrochemical Redox Processes Involved in Carbon-Coated KVPO4F for High Voltage K-Ion Batteries Revealed by XPS Analysis</h1> <p>Thu, 01 Oct 2020 00:00:00 +0000</p> </article> <article> <h1>How the Binder/Solvent Formulation Impacts the Electrolyte Reactivity/Solid Electrolyte Interphase Formation and Cycling Stability of Conversion Type Electrodes</h1> <p>Tue, 14 Apr 2020 00:00:00 +0000</p> </article> <article> <h1>Cross-section Auger imaging: A suitable tool to study aging mechanism of conversion type electrodes</h1> <p>Thu, 17 Oct 2019 00:00:00 +0000</p> </article> <article> <h1>RAISE 🪫 2019-2023</h1> <p>Tue, 01 Oct 2019 00:00:00 +0000</p> <div class="project-page"> <h3 id="-overview">🔍 Overview</h3> <p>This project was an academic (IPREM and D-MEX) and industrial (Arkema and Saft) collaboration. It aimed at developing a polymer-based all-solid-state battery as well as developping inovatives methods to reveal the buried interfaces of the solid-state batteries in order to understand and optimize the aging mechanisms. It was built on a collaboration initiated with L. Rubatat (Polymerist at IPREM) including the Master thesis of F. Fall and also on the pionering results obtained in the . This project was funded by the E2S-UPPA I-SITE and led by H. Martinez.</p> <h3 id="-key-findings">🎯 Key Findings</h3> <ul> <li>Development of a unique non-destructive argon-ion beam cross-sectioning method for polymer-based all-solid-state batteries (-150°C).</li> <li>Development of <em>in situ</em> XPS analysis using a dedicated electrochemical cell.</li> <li>Development of new approaches for <em>operando</em> analysis using electron beams for Auger (world-first) and XPS.</li> <li>Development of an <em>in situ</em> cycling cell for X-ray tomography.</li> </ul> <h3 id="-my-contributions">👤 My Contributions</h3> <ul> <li>Writing (65%), WP leader (analytical development: cross-section, <em>in situ</em>, <em>operando</em>).</li> <li>Co-supervision of 2 postdocs (I. Lopez-Marin and S. Patra).</li> <li>Co-direction of 🎓 J. Morey’s PhD thesis (70%). <div class="text-left"> <a id="button-e462de245d0895bfc2e9198763e780ce" href="https://lmadec.com/phd-thesis/JMorey-phd-thesis.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-3 py-1.5 text-sm rounded-lg" role="button" aria-label="Download J. Morey PhD thesis - PDF (fr-en)" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M19.5 14.25v-2.625a3.375 3.375 0 0 0-3.375-3.375h-1.5A1.125 1.125 0 0 1 13.5 7.125v-1.5a3.375 3.375 0 0 0-3.375-3.375H8.25m.75 12l3 3m0 0l3-3m-3 3v-6m-1.5-9H5.625c-.621 0-1.125.504-1.125 1.125v17.25c0 .621.504 1.125 1.125 1.125h12.75c.621 0 1.125-.504 1.125-1.125V11.25a9 9 0 0 0-9-9"/></svg> </span> <span>Download J. Morey PhD thesis - PDF (fr-en)</span> </a> </div> </li> </ul> <h3 id="-communication">📢 Communication</h3> <p>📄 4 publications<br> 🎤 2 international conferences</p> </div> </article> <article> <h1>TROPIC 🔋 2019-2023</h1> <p>Tue, 01 Oct 2019 00:00:00 +0000</p> <div class="project-page"> <h3 id="-overview">🔍 Overview</h3> <p>This project was an academic collaboration (ICGM, ICMCB and IPREM) that was built notably on the . It was funded by the French National Research Agency and led by L. Monconduit. The aim was to develop alternative K-ion batteries with >90 Wh/kg while (i) adressing the K metal reactivity, (ii) selecting the promising active materials and optimizing the corresponding electrodes formulation and (iii) assembling reliable and optimized full cells with a focus on the aging understanding.<br> Two PhD were funded, R. Wernert and B. Larhrib. The key findinds decrisbed after refer to B. Larhrib’s thesis entitled “<em>From Electrode Design to K-Ion Full Cell Optimization: Electrochemical Performance and Interface Phenomena Investigations</em>”.</p> <h3 id="-key-findings">🎯 Key Findings</h3> <ul> <li>Optimized graphite electrode formulation with…..btention of thick graphite electrodes (8 mg/cm² vs. 1–2 mg/cm² in the literature).</li> <li>Full cells assemlby methodology …</li> <li>First full graphite//KVPO4F cells with 50 Wh/kg energy density (device level).</li> <li>aging….</li> </ul> <h3 id="-my-contributions">👤 My Contributions</h3> <ul> <li>Writing (25%), WP leader (graphite electrode formulation, full-cells assembly, electrolyte formulation and aging mechanism using XPS).</li> <li>Co-direction of 🎓 B. Larhrib’s PhD thesis (85%). <div class="text-left"> <a id="button-a5b07e42460272b21c28d08d7026c743" href="https://lmadec.com/phd-thesis/BLarhrib-phd-thesis.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-3 py-1.5 text-sm rounded-lg" role="button" aria-label="Download B. Larhrib PhD thesis - PDF (en)" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M19.5 14.25v-2.625a3.375 3.375 0 0 0-3.375-3.375h-1.5A1.125 1.125 0 0 1 13.5 7.125v-1.5a3.375 3.375 0 0 0-3.375-3.375H8.25m.75 12l3 3m0 0l3-3m-3 3v-6m-1.5-9H5.625c-.621 0-1.125.504-1.125 1.125v17.25c0 .621.504 1.125 1.125 1.125h12.75c.621 0 1.125-.504 1.125-1.125V11.25a9 9 0 0 0-9-9"/></svg> </span> <span>Download B. Larhrib PhD thesis - PDF (en)</span> </a> </div> </li> </ul> <h3 id="-communication">📢 Communication</h3> <p>📄 7 publications<br> 🎤 2 international conferences</p> </div> </article> <article> <h1>Cross-Section Auger/XPS Imaging of Conversion Type Electrodes: How Their Morphological Evolution Controls the Performance in Li-Ion Batteries</h1> <p>Sat, 22 Jun 2019 00:00:00 +0000</p> </article> <article> <h1>Paving the Way for K-Ion Batteries: Role of Electrolyte Reactivity through the Example of Sb-Based Electrodes</h1> <p>Fri, 28 Sep 2018 00:00:00 +0000</p> </article> <article> <h1>Toward efficient Li-ion cells at high temperatures: Example of TiSnSb material</h1> <p>Thu, 26 Apr 2018 00:00:00 +0000</p> </article> <article> <h1>Impact of the metal electrode size in half-cells studies: Example of graphite/Li coin cells</h1> <p>Tue, 10 Apr 2018 00:00:00 +0000</p> </article> <article> <h1>K-ion Genesis 🔋2018-2021</h1> <p>Mon, 01 Jan 2018 00:00:00 +0000</p> <div class="project-page"> <h3 id="-overview">🔍 Overview</h3> <p>This K-ion battery research project was initiated through a preliminary study, in collaboration with ICGM (L. Monconduit / L. Stievano) and LRCS (G. Gachot) within the RS2E network.<br> In parallel, a PhD funding was secure by L. Caracciolo via E2S-UPPA I-SITE, entitled: “<em>Study of K-ion batteries: redox processes and interfacial phenomena</em>”.</p> <h3 id="-key-findings">🎯 Key Findings</h3> <p><strong>Preliminary study:</strong><br><br> Detrimental interactions (cross-talks) between electrodes were highlighted. In other words, species formed on the K-metal surface migrate and deposit at the working electrode surface whatever the electrode/electrolyte combination was thus preventing SEI study in half-cells in K-ion batteries.<br><br> <strong>PhD results:</strong></p> <ul> <li>XPS was used on KVPO4FxO1-x and revealed a high reversibility of the redox processes although the K+ extraction (and insertion) from x = 0.5 to 0 was hindered, possibly by structural constraints while electrolyte degradation occurred mostly above 4.5V.</li> <li>An unique XPS database was created with K-based SEI reference compounds compared to Li and Na ones.</li> <li>XPS (SEIs) and GC/MS/FTIR (Gases) analysis were combined for the first time to determine the complete degradation pathways of KPF6 and KFSI in EC:DEC in contact with K-metal and compared to LiPF6 in EC:DEC in contact with Li metal.</li> </ul> <h3 id="-my-contributions">👤 My Contributions</h3> <ul> <li>The XPS - GC/MS/FTIR combination that for the time allowed obtening full degradation mechanisms of electrolytes.</li> <li>Co-direction of 🎓 L. Caracciolo’s PhD thesis (>75%). <div class="text-left"> <a id="button-58264cbe5539c05c09b4aa178c37c7ab" href="https://lmadec.com/phd-thesis/LCaracciolo-phd-thesis.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-3 py-1.5 text-sm rounded-lg" role="button" aria-label="Download L. Caracciolo PhD thesis - PDF (fr-en)" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M19.5 14.25v-2.625a3.375 3.375 0 0 0-3.375-3.375h-1.5A1.125 1.125 0 0 1 13.5 7.125v-1.5a3.375 3.375 0 0 0-3.375-3.375H8.25m.75 12l3 3m0 0l3-3m-3 3v-6m-1.5-9H5.625c-.621 0-1.125.504-1.125 1.125v17.25c0 .621.504 1.125 1.125 1.125h12.75c.621 0 1.125-.504 1.125-1.125V11.25a9 9 0 0 0-9-9"/></svg> </span> <span>Download L. Caracciolo PhD thesis - PDF (fr-en)</span> </a> </div> </li> </ul> <h3 id="-communication">📢 Communication</h3> <p>📄 5 publications<br> 🎤 3 international conferences</p> <h3 id="-next-steps">🚀 Next Steps</h3> <p><strong>K-ion Genesis</strong> outcomes helped built the </p> </div> </article> <article> <h1>Exploring Interactions between Electrodes in Li[NixMnyCo1-xy]O2/Graphite Cells through Electrode/Electrolyte Interfaces Analysis</h1> <p>Thu, 07 Dec 2017 00:00:00 +0000</p> </article> <article> <h1>Interest of molecular functionalization for electrochemical storage</h1> <p>Tue, 05 Sep 2017 00:00:00 +0000</p> </article> <article> <h1>Cross-section ✂️ 2017...</h1> <p>Sun, 01 Jan 2017 00:00:00 +0000</p> <div class="project-page"> <h3 id="-overview">🔍 Overview</h3> <p>To investigate in depth morphology and chemical distribution of composite materials and electrodes, I developed cross-sectioning methods using Ar+ ions beam coupled to Auger analysis. It allows analyzing morphological and chemical informations of a micro-scale region of interest with a nano-scale resolution (~30 nm lateral, ~3 nm depth). This approach was applied to:<br></p> <ul> <li><strong>Composite electrodes based on conversion materials for batteries</strong>: conversion materials such as MSnSb (M=Ti or Nb) overcome huge volume expansion (>200%) and very fast amorphization so that conventional XRD/SAXS as well as TEM (focusing individual particles) are unsuitable tecnhiques to study their reversibility. This was performed in collaboration with L. Monconduit (ICGM).<br></li> <li><strong>Nano-composite powders for supercaps</strong>: MnO2-CoOOH performance being governed by their assembly, morphology and porosity at both the nano- and micro-scales, standard XRD (coherent domain size), SEM (surface) and TEM (individual particles) are unsuitable tecnhiques to fully asses their properties at once. It started as a preliminary collaboration with D. Giaume (Chimie ParisTech) and L. Guerlou-Demourgues (ICMCB) through the RS2E network. As the result were conclusive, this method was pursued in a larger project funded by the REGION Nouvelle-Aquitaine and led by D. Flahaut (IPREM).</li> </ul> <h3 id="-key-findings">🎯 Key Findings</h3> <ul> <li><strong>Composite electrodes:</strong> The cross-section/Auger approach demonstrated for the first time that conversion of MSnSb (M=Ti or Nb) still occurs after 400 cycles. It occurs through a shell to core expansion/break up of the particles upon cycling. This leads to a micron scale spreading that fills the initially large and highly porous structure of the electrodes together with a large electrode volume expansion.</li> <li><strong>Composite powders:</strong> The cross-section/Auger approach revealed for the first the Mn-Co scale organization together with the morphology and porosity at both the micro-particles and nano scales.</li> </ul> <h3 id="-my-contributions">👤 My Contributions</h3> <ul> <li>Development of both the electrodes / powders cross-sectioning and Auger analysis protocols with the support of J.-B. Ledeuil (CNRS Research Engineer, IPREM).</li> <li>Co-supervision of 🎓 A. Lemoine’s PhD thesis (20%). <div class="text-left"> <a id="button-22d8ad16e907715714fae2340731e216" href="https://lmadec.com/phd-thesis/ALemoine-phd-thesis.pdf" target="_blank" rel="noopener" class="inline-flex items-center gap-2 font-medium no-underline transition-all duration-300 ease-out transform-gpu focus:outline-none focus:ring-4 focus:ring-offset-2 focus:ring-offset-white dark:focus:ring-offset-zinc-900 disabled:opacity-50 disabled:cursor-not-allowed disabled:pointer-events-none bg-gradient-to-br from-secondary-500 to-secondary-600 hover:from-secondary-600 hover:to-secondary-700 active:from-secondary-700 active:to-secondary-800 text-white shadow-lg shadow-secondary-500/25 hover:shadow-xl hover:shadow-secondary-500/30 hover:scale-105 active:scale-95 focus:ring-secondary-500/50 px-3 py-1.5 text-sm rounded-lg" role="button" aria-label="Download A. Lemoine PhD thesis - PDF (fr-en)" > <span class="flex-shrink-0"> <svg class="w-4 h-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M19.5 14.25v-2.625a3.375 3.375 0 0 0-3.375-3.375h-1.5A1.125 1.125 0 0 1 13.5 7.125v-1.5a3.375 3.375 0 0 0-3.375-3.375H8.25m.75 12l3 3m0 0l3-3m-3 3v-6m-1.5-9H5.625c-.621 0-1.125.504-1.125 1.125v17.25c0 .621.504 1.125 1.125 1.125h12.75c.621 0 1.125-.504 1.125-1.125V11.25a9 9 0 0 0-9-9"/></svg> </span> <span>Download A. Lemoine PhD thesis - PDF (fr-en)</span> </a> </div> </li> </ul> <h3 id="-communication">📢 Communication</h3> <p>📄 6 publications<br> 🎤 2 international conferences</p> <h3 id="-next-steps">🚀 Next Steps</h3> <p>Cross-section were then applied to solid-state battery stacks in the </p> </div> </article> <article> <h1>Some Lewis acid-base adducts involving boron trifluoride as electrolyte additives for lithium ion cells</h1> <p>Wed, 17 Aug 2016 00:00:00 +0000</p> </article> <article> <h1>Some Effects of Intentionally Added Water on LiCoO2/Graphite Pouch Cells</h1> <p>Sat, 04 Jun 2016 00:00:00 +0000</p> </article> <article> <h1>Impact of the salts and solvents on the SEI formation in Sb/Na batteries: An XPS analysis</h1> <p>Sat, 30 Apr 2016 00:00:00 +0000</p> </article> <article> <h1>The Effects of a Ternary Electrolyte Additive System on the Electrode/Electrolyte Interfaces in High Voltage Li-Ion Cells</h1> <p>Tue, 22 Mar 2016 00:00:00 +0000</p> </article> <article> <h1>Study of the consumption of the additive prop-1-ene-1,3-sultone in Li[Ni0.33Mn0.33Co0.33]O2/graphite pouch cells and evidence of positive-negative electrode interaction</h1> <p>Sat, 19 Mar 2016 00:00:00 +0000</p> <p>Add the <strong>full text</strong> or <strong>supplementary notes</strong> for the publication here using Markdown formatting.</p> </article> <article> <h1>Novel nanoporous MnOx (x=∼1.75) sorbent for the removal of SO2 and NH3 made from MnC2O4·2H2O</h1> <p>Tue, 01 Mar 2016 00:00:00 +0000</p> </article> <article> <h1>Effect of LiPF6 concentration in Li[Ni0.4Mn0.4Co0.2]O2/graphite pouch cells operated at 4.5 v</h1> <p>Tue, 06 Oct 2015 00:00:00 +0000</p> </article> <article> <h1>Understanding the Role of Prop-1-ene-1,3-Sultone and Vinylene Carbonate in LiNi1/3Mn1/3Co1/3O2/Graphite Pouch Cells: Electrochemical, GC-MS and XPS Analysis</h1> <p>Fri, 02 Oct 2015 00:00:00 +0000</p> </article> <article> <h1>Mechanism of action of ethylene sulfite and vinylene carbonate electrolyte additives in LiNi1/3Mn1/3Co1/3O2/graphite pouch cells: electrochemical, GC-MS and XPS analysis.</h1> <p>Tue, 22 Sep 2015 00:00:00 +0000</p> </article> <article> <h1>The role of prop-1-ene-1,3-sultone as an additive in lithium-ion cells</h1> <p>Sat, 29 Aug 2015 00:00:00 +0000</p> </article> <article> <h1>Study of triallyl phosphate as an electrolyte additive for high voltage lithium-ion cells</h1> <p>Sun, 12 Jul 2015 00:00:00 +0000</p> <p>Add the <strong>full text</strong> or <strong>supplementary notes</strong> for the publication here using Markdown formatting.</p> </article> <article> <h1>Effect of Sulfate Electrolyte Additives on LiNi1/3Mn1/3Co1/3O2/Graphite Pouch Cell Lifetime : Correlation between XPS Surface Studies and Electrochemical Test Results</h1> <p>Sat, 06 Dec 2014 00:00:00 +0000</p> </article> <article> <h1>Formulation of flowable anolyte for redox flow batteries: Rheo-electrical study</h1> <p>Wed, 22 Oct 2014 00:00:00 +0000</p> <p>Add the <strong>full text</strong> or <strong>supplementary notes</strong> for the publication here using Markdown formatting.</p> </article> <article> <h1>Redirected charge transport arising from diazonium grafting of carbon coated LiFePO4.</h1> <p>Thu, 04 Sep 2014 00:00:00 +0000</p> </article> <article> <h1>Surfactant for enhanced rheological, electrical, and electrochemical performance of suspensions for semisolid redox flow batteries and supercapacitors</h1> <p>Tue, 20 May 2014 00:00:00 +0000</p> </article> <article> <h1>Electronic vs Ionic Limitations to Electrochemical Performance in Li4Ti5O12-Based Organic Suspensions for Lithium-Redox Flow Batteries</h1> <p>Thu, 13 Mar 2014 00:00:00 +0000</p> </article> <article> <h1>Synergistic effect in carbon coated LiFePO4 for high yield spontaneous grafting of diazonium salt. structural examination at the grain agglomerate scale</h1> <p>Mon, 29 Jul 2013 00:00:00 +0000</p> </article> <article> <h1>Non-aqueous carbon black suspensions for lithium-based redox flow batteries: rheology and simultaneous rheo-electrical behavior.</h1> <p>Fri, 07 Jun 2013 00:00:00 +0000</p> </article> <article> <h1>Covalent vs. non-covalent redox functionalization of C-LiFePO4 based electrodes</h1> <p>Fri, 18 Jan 2013 00:00:00 +0000</p> </article> <article> <h1>In situ redox functionalization of composite electrodes for high power-high energy electrochemical storage systems via a non-covalent approach</h1> <p>Fri, 02 Dec 2011 00:00:00 +0000</p> </article> <article> <h1>Modification of activated carbons based on diazonium ions in situ produced from aminobenzene organic acid without addition of other acid</h1> <p>Wed, 20 Jul 2011 00:00:00 +0000</p> </article> </main></body></html>