Novel Amorphous Nitride‐Halide Solid Electrolytes with Enhanced Performance for All‐Solid‐State Batteries
Solid electrolytes (SEs) in all-solid-state batteries (ASSBs) are garnering considerable attention for their potential applications in next-generation energy storage systems. Amorphous SEs with dual-anion hold great promise for achieving favorable performance, such as high ionic conductivity and good compatibility with electrodes within ASSBs. Here, we discover a family of amorphous nitride-halide SEs, Li<sub>3x</sub>MCl<sub>y</sub>N<sub>x</sub> (M=Ta or La, 1≤3x≤1.4, y=5 or 3), which can achieve ionic conductivities up to 7.34 mS cm<sup>-1</sup> at 30 °C. The amorphous properties and local structures are investigated using powder X-ray diffraction, cryogenic transmission electron microscopy, and atomic pair distribution function analysis. Impressively, ASSBs employing amorphous Li<sub>3x</sub>TaCl<sub>5</sub>N<sub>x</sub> have demonstrated good performance at high rates and charging voltages, as well as at low temperature.
Authors
- Bolong Hong
- Jinlong Zhu (ORCID: https://orcid.org/0000-0002-7314-8394)
- Jun Gu (ORCID: https://orcid.org/0000-0002-4902-2433)
- Qiang Xü (ORCID: https://orcid.org/0000-0001-5385-9650)
- Ruqiang Zou (ORCID: https://orcid.org/0000-0003-0456-4615)
- Yuhang Li (ORCID: https://orcid.org/0000-0001-8257-2253)
- Songbai Han (ORCID: https://orcid.org/0000-0002-7552-5317)
- Ming Liu (ORCID: https://orcid.org/0000-0001-9849-1845)
- Lei Gao (ORCID: https://orcid.org/0000-0002-1565-3309)
- Pengfei Nan (ORCID: https://orcid.org/0009-0009-0454-1262)
Institutions
- Anhui University (CN)
- Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
- Peking University (CN)
- Dongguan University of Technology (CN)
- Southern University of Science and Technology (CN)
- University Town of Shenzhen (CN)
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality (CN)
- National Supercomputing Center in Shenzhen (CN)
- Tsinghua–Berkeley Shenzhen Institute (CN)
- Peking University Shenzhen Hospital (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2024-10-11
- DOI
- https://doi.org/10.1002/anie.202415847
- Citations
- 23
- Primary Topic
- Inorganic Chemistry and Materials
- Type
- article
- Field-Weighted Citation Impact
- 3.64
Funders
- National Natural Science Foundation of China
- Basic and Applied Basic Research Foundation of Guangdong Province