التفاصيل البيبلوغرافية
| العنوان: |
Electrochemical study coupled with X-ray tomography on Lithium Metal anode impurities |
| المؤلفون: |
Bouchet, R., Reydet, Nathan, Perticarari, Sofia, Deschamps, Marc, Maire, E |
| المساهمون: |
Matériaux Interfaces ELectrochimie (MIEL), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI), Institut de Chimie - CNRS Chimie (INC-CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP), Université Grenoble Alpes (UGA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP), Université Grenoble Alpes (UGA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP), Matériaux, ingénierie et science Villeurbanne (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Blue Solutions, Odet, Ergue Gaberic, 29500 Quimper, France, ANRT (CIFRE)-Blue Solutions |
| المصدر: |
The 14th Japan-France Joint Seminar on Battery 2024 ; https://hal.science/hal-04812995 ; The 14th Japan-France Joint Seminar on Battery 2024, Sep 2024, Izumo, Japan |
| بيانات النشر: |
HAL CCSD |
| سنة النشر: |
2024 |
| المجموعة: |
Université Grenoble Alpes: HAL |
| مصطلحات موضوعية: |
[CHIM]Chemical Sciences, [PHYS]Physics [physics] |
| جغرافية الموضوع: |
Izumo, Japan |
| الوصف: |
International audience ; The growing needs of batteries in many critical technologies such electrified transport drive a high pressure for developing post-li-ion technologies with improved performance . (H. Adenusi et al Adv. Energy Mater. mars 2023). The lithium metal (LM), considered as the “Holy grail” of negative electrodes with the lowest redox potential (-3.04 vs SHE) and a huge specific capacity of 3860 mAh.gr-1, is thus at the core of many research studies, especially in the context of solid-state batteries (SSB) . However, the implementation of LM in a battery faces many issues that have not yet been resolved and whose underlying mechanisms are not yet fully understood. Among them, a special effort is needed to remove the formation of “dendrites” and, more generally, all types of heterogeneity during the lithium plating or stripping step, which leads to many different degradation mechanisms . However, the analysis of the Li/electrolyte interface properties alone seems insufficient, and a thorough study of the intrinsic bulk properties of LM may provide additional keys to understanding. For example, recent studies on the lithium polymer electrolyte interface have identified insulating impurities present in the bulk of the lithium electrode and responsible for the nucleation of globular structures caused by a strong variation of the current density , which grow during cycling and triggers soft shorts in the cell . Herein, all-solid lithium metal polymer batteries, with a POE-LiTFSI based electrolyte, and an olivine LiFePO4 based positive electrode (1,2 mAh/cm2), were assembled in pouch cell configuration with lithium metal foils with different impurity populations (volumic ratio & size). In this work, the impact of the size of impurities on the cycle life has been thoroughly analyzed. The batteries were galvanostatically cycled with a constant voltage (CV) step at the end of the charge (3,6V). At each step, the average lithium foil thickness varied of +/- 6 µm (charge/discharge, respectively). The ... |
| نوع الوثيقة: |
conference object |
| اللغة: |
English |
| الاتاحة: |
https://hal.science/hal-04812995 |
| رقم الانضمام: |
edsbas.849E1B8C |
| قاعدة البيانات: |
BASE |