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DTSTART;TZID=Europe/Paris:20260205T090000
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DTSTAMP:20260409T195708
CREATED:20260123T095352Z
LAST-MODIFIED:20260123T095352Z
UID:3772-1770282000-1770292800@www.cnrs-imn.fr
SUMMARY:XPS Theoretical Training
DESCRIPTION:
URL:https://www.cnrs-imn.fr/en/event/xps-theoretical-training/
LOCATION:Amphi IMN
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260212T133000
DTEND;TZID=Europe/Paris:20260212T170000
DTSTAMP:20260409T195708
CREATED:20260129T171640Z
LAST-MODIFIED:20260409T083106Z
UID:3771-1770903000-1770915600@www.cnrs-imn.fr
SUMMARY:Solid State Chemistry Seminar - Camila Campos (IMEC Belgium)
DESCRIPTION:Camila Campos (IMEC Belgium) \nExploiting the electric response of materials for improved analytical performance
URL:https://www.cnrs-imn.fr/en/event/solid-state-chemistry-seminar-camila-campos-imec-belgium/
LOCATION:Videoconferencing
ATTACH;FMTTYPE=image/jpeg:https://www.cnrs-imn.fr/wp-content/uploads/2026/01/Camila_Campos.jpg
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DTSTART;TZID=Europe/Paris:20260213T093000
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UID:3435-1770975000-1770984000@www.cnrs-imn.fr
SUMMARY:Thesis defense of Aswadh S. SAJEEVAN (ST2E)
DESCRIPTION:Friday\, February 13 at 9:30 a.m.\n \n\nLi-Organic Solid Polymer Electrolyte Batteries: Integration of Lithiated p-Dihydroxyterephthalate Salts\, Electrochemical Properties and Recycling Strategy\nSummary: Organic electrode materials offer a promising route to the development of more sustainable batteries\, by reducing dependence on critical metals. Among them\, p-dihydroxyterephthalate derivatives feature high operating potentials and scalable structures. This thesis investigates how their redox properties\, electrode architecture and compatibility with solid polymer electrolytes can be optimized to improve the performance of lithium-organic batteries.   \nThe first part examines zinc(II) (2\,5-dilithium-oxy)-terephthalate\, which adopts a lamellar structure and exhibits stable monoelectronic electrochemical activity at a potential of 3.4 V vs. Li+/Li. The second part evaluates magnesium and zinc derivatives in flexible all-solid-state cells using poly(e-caprolactone-trimethylene carbonate) electrolytes. At 60°C\, the polymer electrolyte ensures high ionic conductivity and performance comparable to that observed with liquid electrolytes. The third section focuses on copper(II) (2\,5-dilithium-oxy)terephthalate. Although the bulk material exhibits limited electrochemical activity due to large aggregates\, the synthesis of a carbon-based composite with high specific surface area leads to a nanostructured system that provides access to the full faradic capacity of this organic structure\, but at the expense of sufficient cycling stability. Finally\, the fourth section reports on a pioneering study into the recycling of magnesium(II) (2\,5-dilithium-oxy)-terephthalate-based electrodes.      \nKey words: Organic electrode materials\, Polymer electrolytes\, Battery recycling\, Lithium batteries. \n\nTowards Soft Solid-State Li-Organic Batteries: Implementation of Lithiated p-Dihydroxyterephthalate-Based Positive Electrode Materials\, Electrochemical Properties\, and Recycling Strategy\nAbstract: Organic electrode materials offer a promising route toward sustainable lithium-based batteries by reducing reliance on scarce metals. Among these\, p-dihydroxyterephthalate derivatives provide high operating potentials and tunable structures. This thesis investigates how their redox properties\, electrode architecture\, and compatibility with solid polymer electrolytes can be optimized for improved performance.   \nThe first part examines zinc(II) (2\,5-dilithiumoxy)-terephthalate\, which forms a lamellar structure and shows stable one-electron activity near 3.4 V vs Li+/Li. The second part evaluates magnesium and zinc derivatives of this material in soft solid-state cells with poly(e-caprolactoneco-trimethylene carbonate) based solid polymer electrolytes. At 60 °C\, the polymer electrolyte provides high ionic conductivity and delivers performance comparable to that observed with liquid electrolytes. The third part focuses on copper(II) (2\,5-dilithium-oxy)-terephthalate. Although the bulk material shows limited electrochemical activity due to large aggregates\, the synthesis of a composite based on high surface area carbon yields a nanostructured system that enables access to the full faradaic capacity of this organic framework\, albeit at the expense of adequate cycling stability. Finally\, the fourth part reports a pioneering study on the recycling of magnesium-based (2\,5-dilithium-oxy)-terephthalate electrodes.      \nKeywords: Organic electrode materials\, Polymer electrolytes\, Battery recycling\, Lithium batteries
URL:https://www.cnrs-imn.fr/en/event/thesis-defense-of-aswadh-s-sajeevan-st2e/
LOCATION:Amphi IMN
ATTACH;FMTTYPE=image/jpeg:https://www.cnrs-imn.fr/wp-content/uploads/2026/01/SAJEEVAN_Aswadh.jpg
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