“Oxygen Into Sulfur”- New Synthesis of Sulfide Solid Electrolyte by Oxygenophilic Boron
Sulfide solid electrolytes (SEs) with high ionic conductivity and facile formability provide great promise to construct high energy density and safe all-solid-state batteries (ASSBs). However, the poor air stability of sulfide feedstock and SEs makes the synthesis, storage, and postprocessing of the materials in a dry inert-gas atmosphere, which increases the complexity and cost of the production process. Here, a boron-assisted sulfurization synthesis method is reported for preparing various sulfide SEs from oxide raw materials, including Li<sub>4</sub>SnS<sub>4</sub>, Na<sub>3</sub>SbS<sub>4</sub>, and Li<sub>6</sub>PS<sub>5</sub>X (X = Cl, Br). Boron bonds oxygen from oxide precursors and can be separated, while elemental sulfur reacts with the remaining mixture to form sulfide SEs. Furthermore, nontoxic boron and sulfur ensure the safety of production. Finally, the assembled lithium symmetric batteries and all-solid-state batteries with prepared sulfide SEs exhibit stable cycling. Hence, this work may be important for the practical production and application of sulfide-based ASSBs.
Authors
- Yujing Wu (ORCID: https://orcid.org/0000-0001-5688-9839)
- Weitao He
- Qifa Gao
- Pushun Lu (ORCID: https://orcid.org/0000-0002-1381-5837)
- Xiang Zhu (ORCID: https://orcid.org/0000-0002-6952-4019)
- Tenghuan Ma
- Ming Yang (ORCID: https://orcid.org/0000-0002-9846-0405)
- Fan Wu (ORCID: https://orcid.org/0000-0001-8009-3945)
- Liquan Chen (ORCID: https://orcid.org/0000-0002-6557-1213)
- Hong Li (ORCID: https://orcid.org/0000-0002-8659-086X)
Institutions
- University of Science and Technology of China (CN)
- Chinese Academy of Sciences (CN)
- Yangtze River Delta Physics Research Center (China) (CN)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- Tianmu Lake Institute of Advanced Energy Storage Technologies (China) (CN)
- Wuhan Engineering Science & Technology Institute (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Nano Letters
- Published
- 2025-04-07
- DOI
- https://doi.org/10.1021/acs.nanolett.4c03750
- Citations
- 2
- Primary Topic
- Advanced Battery Materials and Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Jiangsu Science and Technology Department
- Recruitment Program of Global Experts
- Jiangsu Provincial Key Research and Development Program
- Beijing Municipal Natural Science Foundation