About this Research Topic
Electrochemical energy storage devices become ubiquitous in modern life, from portable electronics to the emerging electric vehicle market. Rechargeable batteries based on Li and Na chemistries are among the most successful energy storage technologies. With the increasing demand for energy/power densities, cost, safety and lifespan, new electrochemical systems beyond conventional Li-ion batteries have been under intense investigation, such as Li-sulfur, Li-metal, solid-state and analogous Na systems. In practice, these Li and Na batteries demand high-performance electrode and electrolyte materials, as well as advanced characterization techniques and computational tools for mechanism understanding.
High-energy Li and Na batteries involve electrode materials with aggressive electrochemical processes, such as Li/Na metal anode and high-voltage/high-capacity cathodes. The degradation of electrode and electrode/electrolyte interphase becomes severe, compromising the stability and safety of the battery system. Designed synthesis of electrode materials with desirable composition and microstructure, as well as novel electrolytes, ranging from liquid to solid, have proven efficient to improve the electrochemical performance. In order to gain mechanistic insight and to accelerate material development, advanced characterization and computation methods that provide information at multi-scale would help to understand the electrochemical process and failure mechanism.
This Research Topic will cover recent progress and new ideas on the development of functional materials for advanced Li and Na batteries. Research articles and reviews are both welcomed. Potential topics may include, but are not restricted to, the following:
• Electrode materials design, synthesis and modification for Li/Na-ion batteries
• Materials and structures for stable Li-metal and Na-metal batteries
• Advanced organic, ionic liquid and mixed electrolytes
• Polymer, ceramic and composite solid-state electrolytes for solid-state batteries
• Novel current collectors, binders, separators and functional additives
• Advanced characterization and diagnostic methods
• Modeling and simulation of electrodes and electrolytes
Keywords: Li battery, Na battery, electrode, electrolyte, solid-state battery
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