Special Issue "Advanced Nanomaterials for Li- and Na-Ion Batteries"
Deadline for manuscript submissions: 22 March 2021.
Interests: nanostructured electrode materials for lithium- and sodium-ion batteries; mechanical activation; mechanochemically assisted solid-state synthesis; structural and electrochemical characterization
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Among known systems, lithium-ion batteries are recognized as the most appropriate energy storage systems because of their high energy density and thus space saving in applications. Nanotechnology has opened up new frontiers in materials science and engineering in the past several decades. Considerable efforts on nanostructured electrode materials have been made to fulfill the future requirements of electrochemical energy storage. Compared to bulk materials, most nanostructured electrode materials improve the thermodynamic and kinetic properties of electrochemical reactions for achieving higher energy and power densities. These enhancements are achieved by shortening ion diffusion paths through the solid state, reducing intercalation stress, increasing the utilization of the active materials to improve capacity, and reducing polarization to enhance working voltage.
However, their small size and large specific surface area may have adverse impacts on some applications of nanomaterials. A large electrolyte/electrode surface area may lead to more significant side reactions with electrolytes. Another potential disadvantage is the less dense packing density leading to lower volumetric energy density. A hierarchical micro–nano structure becomes an effective strategy to solve these problems. Choosing between nanostructured electrodes and those with dense architectures creates both opportunities and challenges for enhanced energy storage. In order to enhance stability and reduce the agglomeration of nanoparticles, the nanostructured core-shell approach becomes a very plausible approach to maximize the effect of nanosizing.
When using Na-ion batteries, it is hard to reach the same energy density because the Na atom is three times heavier than the Li atom and the standard electrochemical potential of Na is higher than that of Li. However, they show great potential applications in large-scale stationary energy storage systems because sodium is much more abundant, ecologically sound, and cheaper than lithium. In this context, many efforts have been made to give the electrode materials of Na-ion batteries a higher capacity, better rate capability, and a longer cycle life (including the nanosize approach). It is anticipated that totally new materials with unexpected properties will be discovered through nanotechnologies.
Prof. Dr. Nina V. Kosova
Manuscript Submission Information
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- nanoscale electrode materials for lithium- and sodium-ion batteries
- nanosized electrode materials for lithium- and sodium-ion batteries
- nanostructured electrode materials for lithium- and sodium-ion batteries
- synthesis methods for nanosized and nanostructured electrode materials