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Entropy-Modulated Short-Chain Cathode for Low-Temperature All-Solid-State Li-S Batteries.
Zhao, Wei; Zhang, Yan; Liu, Qingsong; Song, Yajie; Li, Xu; Ren, Liping; Yin, Geping; Lou, Shuaifeng; Wang, Jiajun.
Afiliación
  • Zhao W; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, 92 Xidazhi Street, harbin, CHINA.
  • Zhang Y; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, 92 Xidazhi Street, harbin, CHINA.
  • Liu Q; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, 92 Xidazhi Street, harbin, CHINA.
  • Song Y; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, 92 Xidazhi Street, harbin, CHINA.
  • Li X; Harbin Institute of Technology, State Key Laboratory of Robotics and System, CHINA.
  • Ren L; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, CHINA.
  • Yin G; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, 92 Xidazhi Street, harbin, CHINA.
  • Lou S; Harbin Institute of Technology, School of Chemistry and Chemical Engineering, 92 Xidazhi Street, harbin, CHINA.
  • Wang J; Harbin Institute of Technology, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, No. 92 West Da-zhi street, 150001, Harbin, CHINA.
Angew Chem Int Ed Engl ; : e202413670, 2024 Sep 18.
Article en En | MEDLINE | ID: mdl-39295281
ABSTRACT
All-solid-state Li-S batteries (ASSLSBs) due to high theoretical energy density and exceptional safety are highly desirable for electric aircraft. However, as the flight altitude rises, the low-temperature performance is hampered by inadequate practical capacity. Here, we discover that low-temperature sulfur utilization is constrained by the multi-step endothermic conversion reaction. By introducing multi-chalcogen to modulate the local entropy, a short-chain molecule cathode is designed to shorten the reduction pathways and enhance low-temperature discharge capacity. Furthermore, the mismatched lithiation lattice of the short-chain cathode reduces the decomposition energy barriers, thus enhancing low-temperature charge/discharge reversibility. The designed short-chain cathode exhibits high cathode utilization (99.4%) and cycling stability (400 cycles, 92.2% retention) at room temperature, as well as delivers excellent discharge capacity (579.6 mAh g-1, -40 °C) and cycling performance (100 cycles, 98.4% retention, 394.9 Wh kg-1electrode, -20 °C) at low temperature. This study presents new opportunities to stimulate the development of low-temperature ASSLSBs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania