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A fast-charging/discharging and long-term stable artificial electrode enabled by space charge storage mechanism.
Zhao, Linyi; Wang, Tiansheng; Zuo, Fengkai; Ju, Zhengyu; Li, Yuhao; Li, Qiang; Zhu, Yue; Li, Hongsen; Yu, Guihua.
Afiliación
  • Zhao L; College of Physics, Qingdao University, Qingdao, 266071, China.
  • Wang T; College of Physics, Qingdao University, Qingdao, 266071, China.
  • Zuo F; College of Physics, Qingdao University, Qingdao, 266071, China.
  • Ju Z; Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
  • Li Y; College of Physics, Qingdao University, Qingdao, 266071, China.
  • Li Q; College of Physics, Qingdao University, Qingdao, 266071, China.
  • Zhu Y; Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA. zhuyue@ouc.edu.cn.
  • Li H; School of Materials Science and Engineering, Ocean University of China, Qingdao, 266404, China. zhuyue@ouc.edu.cn.
  • Yu G; College of Physics, Qingdao University, Qingdao, 266071, China. hsli@qdu.edu.cn.
Nat Commun ; 15(1): 3778, 2024 May 06.
Article en En | MEDLINE | ID: mdl-38710689
ABSTRACT
Lithium-ion batteries with fast-charging/discharging properties are urgently needed for the mass adoption of electric vehicles. Here, we show that fast charging/discharging, long-term stable and high energy charge-storage properties can be realized in an artificial electrode made from a mixed electronic/ionic conductor material (Fe/LixM, where M = O, F, S, N) enabled by a space charge principle. Particularly, the Fe/Li2O electrode is able to be charged/discharged to 126 mAh g-1 in 6 s at a high current density of up to 50 A g-1, and it also shows stable cycling performance for 30,000 cycles at a current density of 10 A g-1, with a mass-loading of ~2.5 mg cm-2 of the electrode materials. This study demonstrates the critical role of the space charge storage mechanism in advancing electrochemical energy storage and provides an unconventional perspective for designing high-performance anode materials for lithium-ion batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido