Interstitial cation defect chemistry and correlated disorder in melilite solid electrolytes
migration is facilitated through a continuous "S-curve knock-on" mechanism between interstitial and lattice Sr sites. This study offers complementary insights into the defect chemistry and migration dynamics of interstitial cations in melilite solid electrolytes, laying a fundamentally important foundation of defect chemistry characterization for understanding ionic conduction and designing advanced solid electrolytes.
Authors
- Xianyi Wei
- Cécile Genevois (ORCID: https://orcid.org/0000-0003-2955-2688)
- Mathieu Allix (ORCID: https://orcid.org/0000-0001-9317-1316)
- Xiaoming Wang (ORCID: https://orcid.org/0000-0002-2399-6336)
- Xiaoge Wang (ORCID: https://orcid.org/0000-0003-0582-9881)
- Xianran Xing (ORCID: https://orcid.org/0000-0003-0704-8886)
- Xiaohui Li
- Xiao Ma
- Qiang Li
- Qilong Gao
- Cheng Li (ORCID: https://orcid.org/0000-0002-6546-6413)
- Xiaojun Kuang (ORCID: https://orcid.org/0000-0003-2975-9355)
- Lu Liang
- Sihao Deng (ORCID: https://orcid.org/0000-0002-5142-3519)
- Lunhua He
Institutions
- Oak Ridge National Laboratory (US)
- Centre National de la Recherche Scientifique (FR)
- Shanxi University (CN)
- Guilin University of Technology (CN)
- Zhengzhou University (CN)
- China Spallation Neutron Source (CN)
- Songshan Lake Materials Laboratory (CN)
- Beijing National Laboratory for Molecular Sciences (CN)
- Gannan Normal University (CN)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- Conditions Extrêmes et Matériaux Haute Température et Irradiation (FR)
- Shanxi Normal University (CN)
- National Laboratory for Superconductivity (CN)
- University of Science and Technology Beijing (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2026-04-25
- DOI
- https://doi.org/10.1038/s41467-026-72322-x
- Primary Topic
- Advancements in Solid Oxide Fuel Cells
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Guilin University of Technology
- Natural Science Foundation of Guangxi Province
- Guangxi Key Research and Development Program