How to prepare lithium sulfide Li2S?

Overview of lithium sulfide Li2S powder

Lithium sulfide, molecular formula Li2S, is lithium sulfide, molecular weight: 45.95. White to yellow crystals. It has an anti-fluorite structure. The specific gravity is 1.66 (water = 1), the melting point is 938°C, and the boiling point is 1372°C. It is easily soluble in water, soluble in ethanol, soluble in acid, and insoluble in alkali. It can be used as a potential electrolyte material in rechargeable lithium-ion batteries.

White to yellow crystals. It has an anti-fluorite structure. The specific gravity is 1.66 (water = 1), the melting point is 938°C, and the boiling point is 1372°C. It is easily soluble in water, soluble in ethanol, soluble in acid, and insoluble in alkali.

In the air, it is easy to absorb water vapor and hydrolyze, releasing highly toxic hydrogen sulfide gas. It can be liberated by acid to liberate hydrogen sulfide; it can react violently with nitric acid, but hydrobromic acid and hydroiodic acid can only decompose it when heated. It reacts slowly with concentrated sulfuric acid, but reacts violently with dilute sulfuric acid. When heated to about 300°C in the air, it is oxidized by oxygen, but does not generate sulfur dioxide, but generates lithium sulfate.

How to prepare lithium sulfide Li2S?

Lithium sulfide can be prepared by a variety of methods. In the past, lithium and sulfur were used to heat together to react, and carbon or hydrogen was used to reduce lithium sulfate under heating to prepare lithium sulfide. Later, it was discovered that lithium and sulfur can act in liquid ammonia, or lithium ethoxide can decompose the ethanol adduct of lithium hydrosulfide to produce lithium sulfide. Afterwards, some people used lithium pentoxide and hydrogen sulfide to react first to prepare lithium hydrogen sulfide, and then make lithium hydrogen sulfide decomposed by heating in a vacuum to prepare lithium sulfide.

High-quality anhydrous lithium sulfide can be produced by reacting metallic lithium with hydrogen sulfide in tetrahydrofuran.

Application of lithium sulfide Li2S powder

Lithium sulfide (Li2S) is a product specially designed for high-performance batteries and can be used as an electrode material or a precursor for solid electrolytes. As an electrode material, it not only has high capacity, but also overcomes many problems caused by pure sulfur electrodes.

Lithium sulfide Li2S powder is an anti-fluorite semiconductor (band gap is 3.865eV). It exists in an orthogonal and cubic structure. The densities of the orthogonal and cubic structures are 1.75g/cm3 and 1.63g/cm3, respectively.

Lithium sulfide Li2S powder has been studied as a superconductor similar to MgB2. It is also used as a positive electrode material for rechargeable lithium-sulfur batteries.

Lithium sulfide Li2S powder price

The price of lithium sulfide Li2S powder will vary with the production cost, transportation cost, international situation and market supply and demand of lithium sulfide Li2S powder. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for lithium sulfide Li2S powder, please feel free to send an inquiry to get the latest price of lithium sulfide Li2S powder.

Lithium sulfide Li2S powder supplier

As a global supplier of lithium sulfide Li2S powder, Tanki New Materials Co., Ltd. has advanced design and material performance, application and cost-effective manufacturing experience. The company has successfully developed a series of powder materials (chromium sulfide, zinc sulfide, nickel sulfide), high-purity targets, functional ceramics and structural devices, and provides OEM services.