Investigation of bi-porous electrodes for lithium oxygen batteries
| Autor: | Caroline Gaya, Yinghui Yin, Amangeldi Torayev, Alejandro A. Franco, Youcef Mammeri |
|---|---|
| Přispěvatelé: | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 (LRCS), Université de Picardie Jules Verne (UPJV)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IRT Saint Exupéry - Institut de Recherche Technologique, University of Cambridge [UK] (CAM), Advanced Lithium Energy Storage Systems - ALISTORE-ERI (ALISTORE-ERI), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Amiénois de Mathématique Fondamentale et Appliquée - UMR CNRS 7352 (LAMFA), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Réseau sur le stockage électrochimique de l'énergie (RS2E), Université de Nantes (UN)-Aix Marseille Université (AMU)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Université de Picardie Jules Verne (UPJV)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
020209 energy General Chemical Engineering Diffusion chemistry.chemical_element 02 engineering and technology [CHIM.MATE]Chemical Sciences/Material chemistry Electrochemistry Oxygen Cathode Electrochemical cell law.invention chemistry Chemical engineering law Electrode 0202 electrical engineering electronic engineering information engineering Specific energy Lithium |
| Zdroj: | Electrochimica Acta Electrochimica Acta, 2018, 279, pp.118-127. ⟨10.1016/j.electacta.2018.05.056⟩ |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2018.05.056⟩ |
| Popis: | International audience; The development of practical lithium oxygen batteries with high specific energy needs to move towards the use of thick positive electrodes. However, a specific textural design of thick electrodes is required to enhance O-2 diffusion which represents a significant limiting factor of the cell capacity. In this work we investigate, through a continuum modeling approach, the feasibility of using a bi-porous cathode to improve electrochemical cell response. This electrode contains mesopores providing active surface area towards the Oxygen Reduction Reaction (ORR) and macropores acting as an oxygen reservoir and diffusion medium. Results of this work highlight the complex interplays between the formulation, thickness and texture of the electrode as well as their impacts on the electrochemical performance. (c) 2018 Published by Elsevier Ltd. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect