Anion sublattice design enables superionic conductivity in crystalline oxyhalides
Solid-state batteries are attractive energy storage systems as a result of their inherent safety, but their development hinges on advanced solid-state electrolytes (SSEs). Most SSEs remain largely confined to single-anion systems (e.g., sulfides, oxides, halides, and polymers). Through mixed-anion design strategy, we develop crystalline Li<sub>3</sub>Ta<sub>3</sub>O<sub>4</sub>Cl<sub>10</sub> (LTOC) and its derivatives with excellent ionic conductivities (up to 13.7 millisiemens per centimeter at 25°C) and electrochemical stability. The LTOC structure features mixed-anion spiral chains, consisting of corner-shared oxygen and terminal chlorine atoms, which induces continuous "tetrahedron-tetrahedron" Li-ion migration pathways with low energy barriers. Additionally, LTOC demonstrates holistic cathode compatibility, enabling solid-state batteries operation at 4.9 volts versus Li/Li<sup>+</sup> and low temperature, down to -50°C. These findings describe a promising class of superionic conductors for high-performance solid-state batteries.
Authors
- Feipeng Yang (ORCID: https://orcid.org/0000-0002-5470-3241)
- Yining Huang (ORCID: https://orcid.org/0000-0001-9265-5896)
- James A. Kaduk (ORCID: https://orcid.org/0000-0001-6610-541X)
- Xueliang Andy Sun (ORCID: https://orcid.org/0000-0003-0374-1245)
- Graham King (ORCID: https://orcid.org/0000-0003-1886-7254)
- Joel W. Reid (ORCID: https://orcid.org/0000-0001-7415-8642)
- Tsun‐Kong Sham (ORCID: https://orcid.org/0000-0003-1928-6697)
- Jing Luo (ORCID: https://orcid.org/0000-0003-3844-9746)
- Yifei Mo (ORCID: https://orcid.org/0000-0002-8162-4629)
- Jinghua Guo (ORCID: https://orcid.org/0000-0002-8576-2172)
- Wei Xia (ORCID: https://orcid.org/0000-0003-3164-2789)
- W.S. Li (ORCID: https://orcid.org/0000-0002-5768-9641)
- Sandamini H. Alahakoon
- Jianwen Liang (ORCID: https://orcid.org/0000-0003-4055-1301)
- Yang Zhao (ORCID: https://orcid.org/0000-0002-4148-2603)
- Feipeng Zhao (ORCID: https://orcid.org/0000-0003-2686-6956)
- Shuo Wang (ORCID: https://orcid.org/0000-0002-7907-9676)
- Jue Liu (ORCID: https://orcid.org/0000-0002-4453-910X)
- Yingjie Gao (ORCID: https://orcid.org/0000-0002-6853-7870)
- Shumin Zhang (ORCID: https://orcid.org/0000-0003-4655-8619)
Institutions
- Western University (CA)
- Oak Ridge National Laboratory (US)
- Lawrence Berkeley National Laboratory (US)
- Illinois Institute of Technology (US)
- Laboratoire de physique des Solides (FR)
- Ningbo Institute of Industrial Technology (CN)
- North Central College (US)
- University of Maryland, College Park (US)
- Canadian Light Source (Canada) (CA)
Publication Details
- Journal
- Science
- Published
- 2025-10-09
- DOI
- https://doi.org/10.1126/science.adt9678
- Citations
- 20
- Primary Topic
- Advanced Battery Materials and Technologies
- Type
- article
- Field-Weighted Citation Impact
- 14.61