About this Research Topic
As the key component in energy storage devices, electrolytes are being intensively studied to address critical issues on conduction, potential window, cycle life, reaction mechanism of advanced electrode materials, and metal stripping/plating. Current development in electrolytes has shown success in high voltage lithium ion battery/sodium ion battery and lithium metal battery/sodium metal battery, high performance aqueous rechargeable, and long cycle life redox flow battery. To achieve next-generation energy storage devices, investigation on novel electrolytes is driven by boosting kinetics, enlarging potential window, designing new reaction mechanism, achieving higher energy density, reducing cost, and safety, together with establishing understanding on so-related solid electrolyte interface (SEI).
In this Research Topic, new types of electrolytes will be discussed in the perspectives of fundamental chemistry and energy storage mechanism for lithium/sodium ion batteries, aqueous rechargeable batteries, and redox flow batteries. The types of electrolytes that will be discussed include:
1. Complex ionic liquid for lithium/sodium ion batteries to explore formulation rules and understand transportation mechanism and energy storage mechanism.
2. Deep eutectic solvent/complex salt for aqueous rechargeable batteries to pursuit high potential window with conductivity (approaching 10-3 S cm-1), explore chemistry on metal electrode and reaction mechanism on electrode materials.
3. Highly concentrated electrolyte for redox flow batteries to facilitate high solubility of active materials (3-5 M), achieve high energy density (above 50 Wh/L) with good capacity retention, and study mechanism of redox targeting reaction between active molecule and solid energy storage materials.
Both original research articles and review articles are welcomed in this Research Topic, with the scope including but not limited to:
• Formulation rules of complex ionic liquid electrolytes
• Development of deep eutectic solvent/complex salt
• Highly-soluble organic molecule electrolyte
• Redox targeting based electrolytes
• Ionic transportation in complex electrolytes
• Chemistry of complex electrolytes on metal anode
• Investigation on SEI between complex electrolyte and electrode materials
• Energy storage mechanism with complex electrolytes
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.