The lithium sulfide is a compound with the chemical formula as Li2S. Lithium sulfide (Li2S) as an electrode material has high capacity but also overpowers several problems triggered by pure sulfur electrodes. It is considered to be capable to cathode material considering to its high capacity, high melting point, reasonable volume expansion, and lithium composition. Growing in demand for energy-dense batteries to overcome limits of conventional lithium (Li) ion technology, lithium–sulfur (Li–S) batteries are considered the most favorable due to their high energy density and structural similarity with Li-ion batteries. Lithium sulfides electrode material aids in overpowering problems caused by pure sulfur electrodes. In precise, the battery routine of nanoscale (Li2S) clusters is much better than that of bulk sized Li2S. However, real-world applications of Li–S batteries are still troubled by inherent problems such as the low conductivity of sulfur and lithium sulfide (Li2S), huge volumetric changes associated to electrode, and dissolution of middle lithium polysulfide (LiPS) species. These limits the results such as low sulfur utilization, low coulombic efficiency, and fast fading of Li–S batteries. The Li2S is both poor electronic and ionic conductors, which would characteristically prevent its use in electrochemical applications.
According to study, “Global Lithium Sulfides Market Status (2015-2019) and Forecast (2020-2024) by Region, Product Type & End-Use” the key companies operating in the global lithium sulfides market are Intelligent Materials Pvt., TriveniInterchem, American Elements, Sichuan Brivo lithium Materials, Axiom Chemicals, Dhara Fine Chem, ParadChem, Leverton Clarke, Avantor.
The Li2S cathode can be used in Lithium-ion batteries combination with nontoxic lithium metal-free anodes (e.g., graphite, silicon, and Sn) for the lithium composition, which can sidestep the safety glitches caused by lithium metal anodes. Associated with the Li-S batteries, the LIBs via the Li2S resources as cathodes can spread dynamism as high as that of Li-S batteries, which is numerous times that of the current viable LIBs which are used as intercalation-type cathode materials such as LiFePO4, LiMnO4, and LiCoO2, along with advanced safety avoiding the use of lithium metal anodes.
Li2S has good solubility in some of the key solvents such as ethanol and tetrahydrofuran. Owing tothis, a simple liquid infiltration-evaporation method is widely used for synthesizing the Li2S-carbon composite. The synthesis process mainly includes preparation of the Li2S solution, the infiltration and the evaporation of the solvent and nucleation of Li2S. This method requires a high precise external area and porosity of the carbon material (e.g., graphene, carbon nanotube, and porous carbon) to get a higher Li2S content and better dispersion of Li2S in the composite.
Based on type, market is segmented into nanopowder forms, submicron forms and others. In addition, based on application, market is segmented into building materials, pharmaceuticals and agricultural.
The market is driven by upsurges in demand for energy-dense batteries, followed by rise in lead pollution & stringent laws and increase in focus on renewable energy as an alternative to conventional energy sources. Due to the ever increasing demand for high-density energy storage devices, lithium-ion batteries with a high-capacity cathode and anode are believed to be the advanced batteries expected to register substantial demand over the forecast period.
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Ankur Gupta, Head Marketing & Communications