Nanowire electrodes for electrochemical energy storage devices

There are numerous electric energy storage techniques. Among them, electrochemical devices possess a lot of advantages, including low cost, long life span, high energy power density, good reversibility, and pollution-free operation. On the basis of the larger abundance resources and lower cost of sodium, sodium-based batteries possess the promising potential to meet the demands of large-scale energy storage. Since sodium-ion batteries are newly developed compared with LIBs, they require exploration of new materials and discovery of redox couples. Fortunately, the general technology of LIBs can be utilized to realize the high performance of sodium batteries. Thus, sodium-ion batteries have been considered as a future prospective candidate for reversible energy storage and conversion. Batteries can deliver a high energy density, but electrochemical capacitors, including electrical double-layer capacitors (EDLCs) and pseudocapacitors, are well known for their high power density