卤化物
离子电导率
电解质
离子键合
电导率
离子
快离子导体
化学物理
纳米技术
材料科学
无机化学
化学
物理化学
有机化学
电极
作者
Qidi Wang,Yunan Zhou,Xuelong Wang,Huajun Guo,Shun Gong,Zhenpeng Yao,Fangting Wu,Jianlin Wang,Swapna Ganapathy,Xuedong Bai,Baohua Li,Chenglong Zhao,Jürgen Janek,Marnix Wagemaker
标识
DOI:10.1038/s41467-024-45258-3
摘要
Abstract All-solid-state lithium batteries have attracted widespread attention for next-generation energy storage, potentially providing enhanced safety and cycling stability. The performance of such batteries relies on solid electrolyte materials; hence many structures/phases are being investigated with increasing compositional complexity. Among the various solid electrolytes, lithium halides show promising ionic conductivity and cathode compatibility, however, there are no effective guidelines when moving toward complex compositions that go beyond ab -initio modeling. Here, we show that ionic potential, the ratio of charge number and ion radius, can effectively capture the key interactions within halide materials, making it possible to guide the design of the representative crystal structures. This is demonstrated by the preparation of a family of complex layered halides that combine an enhanced conductivity with a favorable isometric morphology, induced by the high configurational entropy. This work provides insights into the characteristics of complex halide phases and presents a methodology for designing solid materials.
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