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Aqueous Batteries Operated at -50 °C.
Nian, Qingshun; Wang, Jiayue; Liu, Shuang; Sun, Tianjiang; Zheng, Shibing; Zhang, Yan; Tao, Zhanliang; Chen, Jun.
Afiliación
  • Nian Q; Key Laboratory of Advanced Energy Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
  • Wang J; State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences, Dalian, 116023, China.
  • Liu S; Key Laboratory of Advanced Energy Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
  • Sun T; Key Laboratory of Advanced Energy Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
  • Zheng S; Key Laboratory of Advanced Energy Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
  • Zhang Y; Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, 266237, China.
  • Tao Z; Key Laboratory of Advanced Energy Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
  • Chen J; Key Laboratory of Advanced Energy Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
Angew Chem Int Ed Engl ; 58(47): 16994-16999, 2019 Nov 18.
Article en En | MEDLINE | ID: mdl-31541502
Insufficient ionic conductivity and freezing of the electrolyte are considered the main problems for electrochemical energy storage at low temperatures (low T). Here, an electrolyte with a freezing point lower than -130 °C is developed by using dimethyl sulfoxide (DMSO) as an additive with molar fraction of 0.3 to an aqueous solution of 2 m NaClO4 (2M-0.3 electrolyte). The 2M-0.3 electrolyte exhibits sufficient ionic conductivity of 0.11 mS cm-1 at -50 °C. The combination of spectroscopic investigations and molecular dynamics (MD) simulations reveal that hydrogen bonds are stably formed between DMSO and water molecules, facilitating the operation of the electrolyte at ultra-low T. Using DMSO as the electrolyte additive, the aqueous rechargeable alkali-ion batteries (AABs) can work well even at -50 °C. This work provides a simple and effective strategy to develop low T AABs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania