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Solvation-property relationship of lithium-sulphur battery electrolytes.
Kim, Sang Cheol; Gao, Xin; Liao, Sheng-Lun; Su, Hance; Chen, Yuelang; Zhang, Wenbo; Greenburg, Louisa C; Pan, Jou-An; Zheng, Xueli; Ye, Yusheng; Kim, Mun Sek; Sayavong, Philaphon; Brest, Aaron; Qin, Jian; Bao, Zhenan; Cui, Yi.
Afiliação
  • Kim SC; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Gao X; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Liao SL; Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Su H; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Chen Y; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Zhang W; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Greenburg LC; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Pan JA; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Zheng X; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Ye Y; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Kim MS; Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Sayavong P; Department of Chemistry, Stanford University, Stanford, CA, 94305, USA.
  • Brest A; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Qin J; Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA. jianq@stanford.edu.
  • Bao Z; Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA. zbao@stanford.edu.
  • Cui Y; Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA. yicui@stanford.edu.
Nat Commun ; 15(1): 1268, 2024 Feb 10.
Article em En | MEDLINE | ID: mdl-38341443
ABSTRACT
The Li-S battery is a promising next-generation battery chemistry that offers high energy density and low cost. The Li-S battery has a unique chemistry with intermediate sulphur species readily solvated in electrolytes, and understanding their implications is important from both practical and fundamental perspectives. In this study, we utilise the solvation free energy of electrolytes as a metric to formulate solvation-property relationships in various electrolytes and investigate their impact on the solvated lithium polysulphides. We find that solvation free energy influences Li-S battery voltage profile, lithium polysulphide solubility, Li-S battery cyclability and the Li metal anode; weaker solvation leads to lower 1st plateau voltage, higher 2nd plateau voltage, lower lithium polysulphide solubility, and superior cyclability of Li-S full cells and Li metal anodes. We believe that relationships delineated in this study can guide the design of high-performance electrolytes for Li-S batteries.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos