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A Lithium-Ion Battery with Enhanced Safety Prepared using an Environmentally Friendly Process.
Mueller, Franziska; Loeffler, Nicholas; Kim, Guk-Tae; Diemant, Thomas; Behm, R Jürgen; Passerini, Stefano.
Afiliación
  • Mueller F; Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, 89081, Ulm, Germany.
  • Loeffler N; Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021, Karlruhe, Germany.
  • Kim GT; Institute of Physical Chemistry, University of Muenster, Corrensstr. 28/30, 48149, Muenster, Germany.
  • Diemant T; Helmholtz Institute Ulm (HIU), Helmholtzstr. 11, 89081, Ulm, Germany.
  • Behm RJ; Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021, Karlruhe, Germany.
  • Passerini S; Institute of Physical Chemistry, University of Muenster, Corrensstr. 28/30, 48149, Muenster, Germany.
ChemSusChem ; 9(11): 1290-8, 2016 06 08.
Article en En | MEDLINE | ID: mdl-27159254
A new lithium-ion battery chemistry is presented based on a conversion-alloying anode material, a carbon-coated Fe-doped ZnO (TMO-C), and a LiNi1/3 Mn1/3 Co1/3 O2 (NMC) cathode. Both electrodes were fabricated using an environmentally friendly cellulose-based binding agent. The performance of the new lithium-ion battery was evaluated with a conventional, carbonate-based electrolyte (ethylene carbonate:diethyl carbonate-1 m lithium hexafluorophosphate, EC:DEC 1 m LiPF6 ) and an ionic liquid (IL)-based electrolyte (N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide-0.2 m lithium bis(trifluoromethanesulfonyl)imide, Pyr14 TFSI 0.2 m LiTFSI), respectively. Galvanostatic charge/discharge tests revealed a reduced rate capability of the TMO-C/Pyr14 TFSI 0.2 m LiTFSI/NMC full-cell compared to the organic electrolyte, but the coulombic efficiency was significantly enhanced. Moreover, the IL-based electrolyte substantially improves the safety of the system due to a higher thermal stability of the formed anodic solid electrolyte interphase and the IL electrolyte itself. While the carbonate-based electrolyte shows sudden degradation reactions, the IL exhibits a slowly increasing heat flow, which does not constitute a serious safety risk.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suministros de Energía Eléctrica / Seguridad / Tecnología Química Verde / Litio Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2016 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suministros de Energía Eléctrica / Seguridad / Tecnología Química Verde / Litio Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2016 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Alemania