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Advancing Interface Engineering for Non-Close-Packed Halide-Based All-Solid-State Lithium Batteries
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DOI：10.1021/acsaem.5c04039.png)
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Abstract
En 中文
The growing demand for high-energy-density batteries has positioned all-solid-state lithium batteries (ASSBs) as a leading technology with the potential for significant impact. As a key material for ASSBs, halide solid electrolytes (SEs) have emerged as a current research hotspot, especially for non-close-packed halide SEs with ultrahigh ionic conductivity (>10 mS cm–1 at room temperature). However, they still suffer from insufficient compatibility with high-voltage cathode materials (>4.3 V vs Li/Li+) and poor reduction limit (>0.9 V vs Li/Li+). Based on the recent advancements, those challenges have been alleviated through cation/anion regulation engineering and the introduction of extra interlayers. This review distinguishes itself from previous works by systematically examining interfacial failure mechanisms and modification strategies for emerging non-close-packed halide SEs. Surpassing conventional halide SEs with close-packed structures, the non-close-packed ones enable broader cationic/anionic doping versatility, including multi-element co-doping and facilitate the improvement of interfacial engineering through more diverse interlayers. This focused review is expected to inspire more research on improving the interfacial stability between non-close-packed halide SEs and electrode materials, which would promote the development of high-performance ASSBs.
Keywords:
Batteries
Electrodes
Halogens
Inorganic compounds
Solid electrolytes
halide solid electrolytes
all-solid-state batteries
interfaces
element doping
non-close-packed structure
Journal
IF:
5.5
Papers:
1.1W
Citations:
4.5W
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