Solid Halide Electrolytes with High Lithium‐Ion Conductivity for Application in 4 V Class Bulk‐Type All‐Solid‐State Batteries

  title={Solid Halide Electrolytes with High Lithium‐Ion Conductivity for Application in 4 V Class Bulk‐Type All‐Solid‐State Batteries},
  author={Tetsuya Asano and Akihiro Sakai and Satoru Ouchi and Masashi Sakaida and Akinobu Miyazaki and Shinya Hasegawa},
  journal={Advanced Materials},
New lithium halide solid‐electrolyte materials, Li3YCl6 and Li3YBr6, are found to exhibit high lithium‐ion conductivity, high deformability, and high chemical and electrochemical stability, which are required properties for all‐solid‐state battery (ASSB) applications, particularly for large‐scale deployment. The lithium‐ion conductivities of cold‐pressed powders surpass 1 mS cm−1 at room temperature without additional intergrain or grain boundary resistances. Bulk‐type ASSB cells employing… 

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