As an electrolyte additive for lithium-ion batteries, the development of vinyl sulfate (DTD) industry is accelerating

Vinyl sulfate (DTD), also known as ethylene glycol sulfate, ethylene glycol sulfate, and ethylene sulfate, has a molecular formula of C2H4O4S and is a chemical substance. Vinyl sulfate appears as white crystals or crystalline powder, is insoluble in water, is flammable and volatile, and is widely used in organic synthesis, medicine, lithium-ion batteries and other fields.

The main synthesis methods of vinyl sulfate include ionization method, transesterification method, hydrolysis method, photochemical method, electrochemical method, etc. The ionization method is an emerging method for the preparation of vinyl sulfate. It uses sodium sulfate and ethylene as the main raw materials, adds a metal catalyst, and uses high-energy current to ionize the finished product. This method has the advantages of high yield of finished product, low reaction temperature, and simple operation. , but it has not yet been applied on a large scale; the transesterification method is a traditional preparation method for vinyl sulfate. This method can prepare high-purity vinyl sulfate, but the yield of the finished product is low.

Vinyl sulfate has a wide range of applications, including organic synthesis, medicine, lithium-ion batteries, etc. The lithium-ion battery field has the largest demand for vinyl sulfate. It can be used as an electrolyte additive for lithium-ion batteries, which can effectively improve the battery cycle times and charge and discharge performance, and can also increase the initial discharge capacity of the battery. In recent years, the prosperity of the lithium-ion battery industry has continued to improve, driving the market demand for vinyl sulfate to become increasingly strong. According to the “2023-2028 China Vinyl Sulfate (DTD) Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center ” shows that global demand for vinyl sulfate will exceed 10,000 tons in 2022, a year-on-year increase of 26.8%.

In the field of organic synthesis, industrial grade vinyl sulfate is an important organic synthesis intermediate, and hydroxyethylation reagents, heterocyclic compounds, etc. are its end products. In September 2022, the China Chemical Society released the T/CIESC 0042-2022 “Vinyl Sulfate for Industrial Use” group standard drafted by Shenghua New Materials, clarifying the inspection rules, technical requirements, test methods, etc. for vinyl sulfate for industrial use. Make strict regulations. Against this background, my country’s vinyl sulfate industry will gradually develop in a standardized direction.

There are many vinyl sulfate manufacturers in my country, and the market competition is fierce. In recent years, attracted by market prospects, many companies in my country have announced the expansion of vinyl sulfate production, which has accelerated the development of the industry. Shi Dashenghua, Guancheng Datong, Tianci Materials, Xinzhoubang, etc. are the main manufacturers of vinyl sulfate in my country. Shi Dasheng Huawei is my country’s leading vinyl sulfate enterprise. The company is currently promoting a vinyl sulfate production project with an annual output of 2,000 tons.

Industry analysts said that benefiting from the increased prosperity of the lithium-ion battery industry, vinyl sulfate as an electrolyte additive for lithium-ion batteries, the market Demand is growing. Competition in my country’s vinyl sulfate market is fierce. As local companies continue to expand their production capacity, the development prospects of my country’s vinyl sulfate industry will continue to improve.