Your browser doesn't support javascript.
loading
Concentration controlling of carboxylic ester-based electrolyte for low temperature lithium-ion batteries.
Gao, Song; Wang, Kang; Wang, Liying; Yang, Xijia; Yang, Yue; Xiu, Wencui; Li, Xuesong; Lü, Wei.
Afiliación
  • Gao S; Changchun University of Technology, School of Materials Science and Engineering, CHINA.
  • Wang K; Changchun University of Technology, School of Materials Science and Engineering, CHINA.
  • Wang L; Changchun University of Technology, School of Materials Science and Engineering, CHINA.
  • Yang X; Changchun University of Technology, School of Materials Science and Engineering, CHINA.
  • Yang Y; Changchun University of Technology, School of Materials Science and Engineering, CHINA.
  • Xiu W; Jilin Agricultural Science and Technology University School of Mechanical and Civil Engineering, School of Mechanical and Civil Engineering, CHINA.
  • Li X; Changchun University of Technology, School of Materials Science and Engineering, CHINA.
  • Lü W; Changchun Institute of Technology, No.2055 Yanan Street, Changchun, CHINA.
Chemistry ; : e202401935, 2024 Jul 23.
Article en En | MEDLINE | ID: mdl-39042471
ABSTRACT
Low temperature has been a major challenge for lithium-ion batteries (LIBs) to maintain satisfied electrochemical performance, and the main reason is the deactivation of electrolyte with the decreasing temperature. To address this point, in present work, we develop a low-temperature resistant electrolyte which includes ethyl acetate (EA) and fluoroethylene carbonate (FEC) as solvent and lithium difluoro(oxalato)borate (LiDFOB) as the primary lithium salt. Due to the preferential decomposition of LiDFOB and FEC, a solid electrolyte interface rich in LiF is formed on the lithium metal anodes (LMAs) and lithium cobalt oxide (LCO) cathodes, contributing to higher stability and rapid desolvation of Li+ ions. The batteries with the optimized electrolyte can undergo cycling tests at -40 °C, with a capacity retention of 83.9 % after 200 cycles. Furthermore, the optimized electrolyte exhibits excellent compatibility with both LCO cathodes and graphite (Gr) anodes, enabling a Gr/LCO battery to maintain a capacity retention of 90.3 % after multiple cycles at -25 °C. This work proposes a cost-effective electrolyte that can activate potential LIBs in practical scenarios, especially in low-temperature environments.
Palabras clave
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: Chemistry Asunto de la revista: QUIMICA Año: 2024 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: Chemistry Asunto de la revista: QUIMICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania