Novel Amorphous Nitride-Halide Solid Electrolytes with Enhanced Performance for All-Solid-State Batteries

Bolong Hong; Lei Gao; Pengfei Nan; Yuhang Li; Ming Liu; Ruqiang Zou; Jun Gu; Qiang Xu; Jinglong Zhu; Songbai Han

doi:10.1002/anie.202415847

Novel Amorphous Nitride-Halide Solid Electrolytes with Enhanced Performance for All-Solid-State Batteries

Angew Chem Int Ed Engl. 2024 Oct 11:e202415847. doi: 10.1002/anie.202415847. Online ahead of print.

Authors

Bolong Hong¹, Lei Gao², Pengfei Nan³, Yuhang Li⁴, Ming Liu⁴, Ruqiang Zou², Jun Gu⁵, Qiang Xu⁶, Jinglong Zhu⁷, Songbai Han⁸

Affiliations

¹ Southern University of Science and Technology, Department of Physics, 1088 Xueyuan Avenue, Shenzhen 518055, P.R. China, ShenZhen, CHINA.
² Peking University, School of Materials Science and Engineering, No.5 Yiheyuan Road, Haidian District, Beijing 100871, P.R.China, CHINA.
³ Anhui University, Institutes of Physical Science and Information Technology, 3 Feixi Road, Hefei, Anhui, China (230039), CHINA.
⁴ Tsinghua University, Shenzhen Geim Graphene Center, Tsinghua Shenzhen International Graduate School, University Town of Shenzhen, Nanshan District, Shenzhen 518055 P.R. China, CHINA.
⁵ Southern University of Science and Technology, Department of Chemistry, 1088 Xueyuan Avenue, Shenzhen 518055, P.R. China, CHINA.
⁶ Southern University of Science and Technology, Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Department of Chemistry, Department of Materials Science and Engineering, SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, 1088 Xueyuan Avenue, Shenzhen 518055, P.R. China, CHINA.
⁷ Southern University of Science and Technology, Department of Physics, 1088 Xueyuan Avenue, Shenzhen 518055, P.R. China, CHINA.
⁸ Southern University of Science and Technology, 1088# Xue Yuan Str., Shenzhen, CHINA.

PMID: 39391901
DOI: 10.1002/anie.202415847

Abstract

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, Li3xMClyNx (M = Ta or La, 1 ≤ 3x ≤ 1.4, y = 5 or 3), which can achieve ionic conductivities up to 7.34 mS cm‒1 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 Li3xTaCl5Nx have demonstrated good performance at high rates and charging voltages, as well as at low temperature.

Keywords: amorphous * solid electrolyte * all-solid-state batteries.