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A safe and non-flammable sodium metal battery based on an ionic liquid electrolyte.
Sun, Hao; Zhu, Guanzhou; Xu, Xintong; Liao, Meng; Li, Yuan-Yao; Angell, Michael; Gu, Meng; Zhu, Yuanmin; Hung, Wei Hsuan; Li, Jiachen; Kuang, Yun; Meng, Yongtao; Lin, Meng-Chang; Peng, Huisheng; Dai, Hongjie.
Afiliação
  • Sun H; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Zhu G; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Xu X; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Liao M; School of Aerospace Engineering, Tsinghua University, Beijing, 100084, China.
  • Li YY; State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China.
  • Angell M; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Gu M; Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, 62102, Taiwan.
  • Zhu Y; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Hung WH; Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
  • Li J; Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
  • Kuang Y; Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China.
  • Meng Y; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Lin MC; Department of Materials Science and Engineering, Feng Chia University, Taichung, 40724, Taiwan.
  • Peng H; Institute of Materials Science and Engineering, National Central University, Taoyuan, 32001, Taiwan.
  • Dai H; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
Nat Commun ; 10(1): 3302, 2019 Jul 24.
Article em En | MEDLINE | ID: mdl-31341162
ABSTRACT
Rechargeable sodium metal batteries with high energy density could be important to a wide range of energy applications in modern society. The pursuit of higher energy density should ideally come with high safety, a goal difficult for electrolytes based on organic solvents. Here we report a chloroaluminate ionic liquid electrolyte comprised of aluminium chloride/1-methyl-3-ethylimidazolium chloride/sodium chloride ionic liquid spiked with two important additives, ethylaluminum dichloride and 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide. This leads to the first chloroaluminate based ionic liquid electrolyte for rechargeable sodium metal battery. The obtained batteries reached voltages up to ~ 4 V, high Coulombic efficiency up to 99.9%, and high energy and power density of ~ 420 Wh kg-1 and ~ 1766 W kg-1, respectively. The batteries retained over 90% of the original capacity after 700 cycles, suggesting an effective approach to sodium metal batteries with high energy/high power density, long cycle life and high safety.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
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Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos