Sulfur-Hollow Carbon Nanosphere (S@HCS) Composite Cathode
Materials for Lithium-Sulfur Batteries
Sultan Akhmetov
Department of Chemistry, School of Science and Technology, Nazarbayev University,
Astana, Kazakhstan
Email: [email protected]
Abstract
The one of the current global issues is the energy production and its storage, so there are many
researches are going in this direction, and particularly, there is an intense interest in lithium-
sulfur batteries as an electrochemical energy storage. The lithium-sulfur (Li-S) battery is a
promising electrochemical system as a high-energy secondary battery, particularly for large-
scale applications, due to its low cost, theoretically large specific capacity, theoretically high
specific energy, and its ecofriendly footprint. The Li-S battery exhibits excellent potential and
has attracted the attention of battery developers in large scale production in recent years.
However, the most important challenge in the practical development of Li-S batteries is finding
suitable cathode materials. This presentation attempts to evaluate the most suitable candidate
among sulfur-hollow carbon nanosphere (S@HCS) composite cathodes, as HCS are one of the
promising materials to be used as sulfur host, because of their structural advantages which
provide with a huge number of available nanoparticles for sulfur to be attached, thus the
utilization of active material is improved significantly, as a result, studies involving this type
of cathodes demonstrated a reasonable high capacity and excellent cycling stability.