Lithium-ion battery electrolyte core technology level improved

Benefiting from the strong demand for consumer electronics products represented by mobile phones, electric cars, notebook computers, digital products, etc., the global lithium-ion battery industry has maintained rapid growth in recent years.

Lithium ion batteries are mainly composed of four parts: positive electrode material, negative electrode material, electrolyte and separator. The electrolyte is one of the key raw materials of lithium ion batteries, and is the blood of lithium ion batteries. The lithium hexafluorophosphate (LIPF6) is the core material of the electrolyte for lithium ion batteries, commonly known as lithium salt, and is the electrolyte with the best performance and the most usage.

The ratio of the amount of lithium hexafluorophosphate to organic solvent (including additives) is about 1: 7, and its cost accounts for 50% -70% of the total electrolyte production cost. At present, the price of lithium hexafluorophosphate is 25-30 million yuan / ton, and the gross profit rate is 60% It is one of the highest value-added parts of lithium-ion battery materials. The technical research and development level, production and supply capacity, and price level of lithium hexafluorophosphate have greatly affected the development scale and profit level of the lithium-ion battery industry.

Domestic lithium-ion electrolyte manufacturers basically purchase lithium hexafluorophosphate from Japanese companies to produce lithium-ion battery electrolyte products. Before the company successfully achieves large-scale production, the production technology of this product is basically monopolized by three Japanese companies, Kanto Electrochemical, SUTERAKEMIFA, and Morita Chemical.

Tianci successfully broke through technical barriers and realized large-scale production of lithium hexafluorophosphate. In 2011, the company had a production capacity of 300 tons of lithium hexafluorophosphate. The company's lithium hexafluorophosphate products are mainly used for self-use, and the lithium ion battery electrolyte products are sold for external sales. In 2011, the lithium-ion battery electrolyte had a capacity of 2,540 tons.

The trend of rapid development of new energy vehicles will bring explosive growth to the lithium-ion battery industry. It is understood that the capacity of an electric vehicle's lithium-ion battery is 10,000 times that of a mobile phone battery. According to the Japan Institute of Information Technology (IIT) forecast, the global output of new energy vehicles will reach 6.89 million units, based on the average consumption of 40 kilograms of lithium ion battery electrolyte for a new energy vehicle. Lithium-ion battery electrolyte is about 275,800 tons, with a compound growth rate of up to 86%.

Industry analysts predict that the future market capacity of lithium hexafluorophosphate will show rapid growth. Once the new energy vehicle market breaks through, it will bring geometric growth to the upstream lithium ion battery electrolyte and lithium hexafluorophosphate.

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