Details

Autor(en) / Beteiligte

• Bresser, Dominic
• Leclere, Mélody
• Bernard, Laurent
• Rannou, Patrice
• Mendil‐Jakani, Hakima
• Kim, Guk‐Tae
• Zinkevich, Tatiana
• Indris, Sylvio
• Gebel, Gérard
• Lyonnard, Sandrine
• Picard, Lionel

Titel

Organic Liquid Crystals as Single‐Ion Li+ Conductors

Ist Teil von

• ChemSusChem, 2021-01, Vol.14 (2), p.655-661

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• The development of new materials for tomorrow's electrochemical energy storage technologies, based on thoroughly designed molecular architectures is at the forefront of materials research. In this line, we report herein the development of a new class of organic lithium‐ion battery electrolytes, thermotropic liquid crystalline single‐ion conductors, for which the single‐ion charge transport is decoupled from the molecular dynamics (i. e., obeys Arrhenius‐type conductivity) just like in inorganic (single‐)ion conductors. Focusing on an in‐depth understanding of the structure‐to‐transport interplay and the demonstration of the proof‐of‐concept, we provide also strategies for their further development, as illustrated by the introduction of additional ionic groups to increase the charge carrier density, which results in a substantially enhanced ionic conductivity especially at lower temperatures. Increasing order: Lithium‐comprising thermotropic organic liquid crystals mimick the lithium‐ion conduction mechanism characteristic for inorganic solid‐state electrolytes, while providing the beneficial mechanical properties of organic electrolyte systems; thus allowing for the complete decoupling of segmental motion and charge transport.