Na <sub>10</sub> Mn <sub>4</sub> O <sub>9</sub> : Synthesis, Structure, and Electrochemical Properties
In the search for sustainable cathode materials for Na–ion batteries, Mn-based oxides have emerged as attractive candidates owing to their earth abundance and structural versatility. In this context, a comprehensive investigation of the electrochemical behavior of the sodium-rich Mn2+ oxide Na10Mn4O9 toward sodium extraction/insertion is presented. The structural framework of this phase, prepared through a simple solid-state synthesis at 450 °C, is built on MnO4 and MnO3 polyhedra. Seven sodium ions per unit formula can be extracted during the first charge, and XAS analysis reveals the main transformation into a layered NaxMnO2·Na2O composite. Upon further cycling, once this phase is formed, the material delivers a reversible capacity of 110 mAh g–1 at an average potential of 2.24 V vs Na+/Na.
Authors
- Vadim M. Kovrugin (ORCID: https://orcid.org/0000-0002-9010-625X)
- V. Pralong (ORCID: https://orcid.org/0000-0003-4644-8006)
- Tanguy Soudant (ORCID: https://orcid.org/0009-0000-5541-4022)
- Maignan Antoine
- Jean Marie Tarascon
- Antonella Iadecola
- Gwenaëlle Rousse
- Lorenzo Stievano
Institutions
- École Nationale Supérieure de Chimie de Montpellier (FR)
- Centre National de la Recherche Scientifique (FR)
- Collège de France (FR)
- Université de Montpellier (FR)
- Sorbonne Université (FR)
- Réseau sur le Stockage Electrochimique de l'énergie (FR)
- Normandie Université (FR)
- Institut Charles Gerhardt Montpellier (FR)
- PHENIX laboratory (FR)
- Université de Caen Normandie (FR)
Publication Details
- Journal
- ACS Applied Energy Materials
- Published
- 2026-01-15
- DOI
- https://doi.org/10.1021/acsaem.5c03485
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00