Titanium sulfide TiS2 can be used as a cathode material for rechargeable batteries

Overview of titanium sulfide TiS2 powder

Titanium disulfide is an inorganic compound with the molecular formula TiS2. Brass flake crystals with metallic luster. The density is 3.22g/mL. It is stable at room temperature, stable to water, dilute sulfuric acid and hydrochloric acid, but nitric acid and concentrated sulfuric acid will decompose it into sulfur. Lithium can be inserted between the titanium disulfide layers, and the composition of the compound LiTiS2 forming the inner layer changes continuously between x=0 and 1, so it is an ideal non-stoichiometric compound. Titanium disulfide is a yellow or gray powder with an unpleasant odor and is used as a solid lubricant. Contact with this substance may burn skin, eyes and mucous membranes. May be toxic if swallowed, inhaled or absorbed through the skin.

Titanium disulfide has a layered structure, and each layered structure is composed of a sulfur-titanium-sulfur intermediate layer connected by weak van der Waals forces. Crystals can be grown from titanium wires heated in sulfur vapor, or they can be synthesized by the reaction of titanium tetrachloride and hydrogen sulfide. Lithium can be inserted between the titanium disulfide layers, and the composition of the compound LiTiS2 forming the inner layer changes continuously between x=0 and 1, so it is an ideal non-stoichiometric compound.

Titanium disulfide is an inorganic compound with the molecular formula TiS2. The stoichiometric unit ME2.TiS2 is a group of highly conductive golden yellow solids belonging to transition metal halogens, which are used as cathode materials for rechargeable batteries.

Titanium disulfide (TiS2)

The density of titanium disulfide: 3.22 g / ML

Molecular weight of titanium disulfide: 112

Purity of titanium disulfide: 99.95%

Titanium disulfide specification: powder

Titanium disulfide CAS 2039-13-3

Titanium disulfide packaging: without gas cylinder

How to produce titanium sulfide TiS2 powder?

Titanium disulfide is prepared by reacting elements at about 500°C.

Ti + 2S→TiS2

It can be more easily synthesized from titanium tetrachloride, but the purity of the product is usually lower than that obtained from the elements.

TiCl4 + 2H2S→TiS2 + 4HCl

This approach has been applied to the process of forming TiS 2 film by chemical vapor deposition. Mercaptans and organic disulfides can be used instead of hydrogen sulfide.

Many other titanium sulfides are known.

Application of titanium sulfide TiS2 powder

Titanium sulfide TiS2 powder is mainly used in lithium batteries, targets, scientific research, etc.

In 1973, the prospect of using titanium disulfide as a positive electrode material for rechargeable batteries was proposed. Group IV and V halogen compounds have attracted attention due to their high electrical conductivity. The battery originally described uses a lithium anode and a titanium disulfide cathode. The energy density of the battery is high, the diffusion process of lithium ions to the titanium disulfide cathode is reversible, and the battery can be charged.

Titanium disulfide was chosen because it is the lightest and cheapest chalcogenide.

Lithium ions diffuse the fastest in titanium disulfide.

The main problem is the degradation of the cathode after repeated use. This reversible insertion process allows the battery to be charged. In addition, among all the layered dihalides IV and V, titanium disulfide is the lightest and cheapest.

In the 1990s, other cathode materials (manganese oxide and cobalt oxide) in most rechargeable batteries replaced titanium disulfide.

Use of TiS2 cathode in solid-state lithium batteries Most lithium-ion batteries use liquid electrolytes, which may cause safety hazards due to their flammability. Many different solid electrolytes have been proposed to replace these harmful liquid electrolytes.

For most solid-state batteries, higher interface resistance will reduce the reversibility of the insertion process and shorten the service life. For TIS2, these bad interface effects are no longer a problem. The power density of all solid-state lithium batteries is 1000 W/kg, and the maximum power density of 50 cycles is 1500 W/kg. In addition, the average capacity of the battery dropped by less than 10% in 50 cycles. Although titanium disulfide has high conductivity, high energy density and high power, its discharge voltage is relatively low compared with other lithium batteries with high reduction potential cathodes.

The price of titanium sulfide TiS2 powder

The price of titanium sulfide TiS2 powder will vary randomly with the production cost, transportation cost, international situation, exchange rate and market supply and demand of titanium sulfide TiS2 powder. Tanki New Materials Co.,Ltd. aims to help all 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 titanium sulfide TiS2 powder, please feel free to send it to get the latest titanium sulfide TiS2  price.

Supplier of titanium sulfide TiS2 powder

As a global supplier of titanium sulfide TiS2 powder, Tanki New Materials Co.,Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced technology and engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.