Thermodynamically Driven Synthetic Optimization for Cation‐Disordered Rock Salt Cathodes

نویسندگان

چکیده

Relating the synthesis conditions of materials to their functional performance has long been an experience-based trial-and-error process. However, this methodology is not always efficient in identifying appropriate protocol and can lead overlooked opportunities for optimization through simple modifications In work, authors systematically track structural evolution a representative disordered rock salt (a promising next-generation Li-ion cathode material) at scale both long-range crystal structure short-range atomic using various situ ex techniques, including transmission electron microscopy, X-ray diffraction, pair distribution function analysis. An strategy proposed protocol, leading remarkably enhanced capacity (specific energy) 313 mAh g−1 (987 Wh kg−1) low rate (20 mA g−1), with more than 140 retained even very high cycling 2000 g−1. This further rationalized ab initio calculations, important synthetic demonstrated study are highlighted.

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ژورنال

عنوان ژورنال: Advanced Energy Materials

سال: 2022

ISSN: ['1614-6832', '1614-6840']

DOI: https://doi.org/10.1002/aenm.202103923