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The important composition of electrolyte, the price trend of lithium ion battery electrolyte. Lithium perchlorate and lithium hexafluorophosphate are the important electrolytes used in lithium-ion batteries. The price of electrolyte is greatly affected by lithium hexafluorophosphate, so the price of lithium ion battery electrolyte fluctuates greatly. Due to fierce market competition, the price of lithium-ion battery electrolyte has decreased, resulting in a decrease in gross profit.

The electrolyte is mainly composed of three parts:

Solvent: cyclic carbonate (PC, EC); Chain carbonates (DEC, DMC, EMC); Carboxylates (MF, MA, EA, MA, MP, etc.).

Lithium salts: LiPF6, LiClO4, LiBF4, LiAsF6, etc.

Additives: film forming additives, conductive additives, flame retardant additives, overcharge protection additives, additives to control the content of H2O and HF in the electrolyte, additives to improve low-temperature performance, multi-functional additives.

Lithium ion battery electrolyte

The electrolyte of lithium ion battery is the carrier of ion transport in the battery. It is generally composed of lithium salt and organic solvent. Electrolyte plays the role of conducting ions between the positive and negative electrodes of lithium-ion batteries, which is the guarantee for lithium-ion batteries to obtain high voltage, high specific energy and other advantages. Electrolyte is generally made of high-purity organic solvent, lithium salt of electrolyte, necessary additives and other raw materials under certain conditions and in a certain proportion.

As the blood of lithium-ion batteries, electrolyte bears the heavy responsibility of transporting lithium ions. Its quality will directly affect the performance of lithium-ion batteries, and also affect the safety of lithium-ion batteries to a certain extent.

Price trend of lithium ion battery electrolyte

Lithium hexafluorophosphate is the most important component of lithium ion battery electrolyte, accounting for about 43% of the total cost of electrolyte. In the fluorine chemical industry, the demand for high-end products has maintained a strong momentum despite the sharp year-on-year decline of traditional products. In particular, the production and sales of lithium hexafluorophosphate continued to maintain a good momentum. With the continuous expansion of new energy in the future, lithium hexafluorophosphate is expected to continue to explode.

As the most important component of lithium ion battery electrolyte, the price of lithium hexafluorophosphate has continued to rise recently. According to the monitoring, on March 22, the price of lithium hexafluorophosphate was between 90000 and 150000 yuan/ton. Although the average price was the same as that of the previous day, the high price rose by 15000 yuan/ton. With regard to the average price on March 19, the price of lithium hexafluorophosphate rose by 5000 yuan/ton in a few days.

According to the research report, the rapid increase in the shipments of lithium ion batteries for power and energy storage drives the demand for electrolyte and lithium hexafluorophosphate to continue to grow. It is estimated that the global demand for lithium hexafluorophosphate will be 30800 tons, 40000 tons and 53600 tons respectively from 2018 to 2020, with a compound growth rate of 32%.

At present, lithium hexafluorophosphate has far met the market demand. With the future market development, the price of lithium hexafluorophosphate will gradually decline. Additives generally meet the existing needs, including solvents, but need to be further improved. At present, the electrolyte has covered all materials, including the demand for voltage and the demand for use environment, but there are still many problems in the middle, which need to be solved gradually.

The electrolyte is composed of lithium salts, high-purity organic solvents, necessary additives and other raw materials, which is critical to the specific capacity, operating temperature range, cycle efficiency and safety performance of the battery. Electrolyte accounts for 5-15% of the cost of lithium-ion battery, and the gross profit margin of the product is 25-30%. The lithium salt of electrolyte is lithium hexafluorophosphate, accounting for 40% of the cost of electrolyte.

From the perspective of price trend, entering the supply chain of excellent manufacturers means relatively stable profitability. We expect that the gross profit rate of electrolyte products of domestic first-tier manufacturers is expected to stabilize at 25%. According to the price of raw material lithium hexafluorophosphate stabilized at 90000 yuan/ton (excluding tax), and the gross profit rate of electrolyte products is 25%, the price of lithium ion battery electrolyte is estimated at 35000 yuan/ton.

In addition, impacted by the surge in raw materials, the industry reshuffle has intensified, and the concentration of lithium ion battery electrolyte industry will further improve.

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