Lithium battery manufacturers interpret the development level and technical status of the four key materials of 18650 1800mah battery

　　Lithium battery manufacturers interpret the development level and technical status of the four key materials of 18650 1800mah battery. With the continuous development of the global economy, the gradual deepening of the energy crisis and the increasing awareness of environmental protection, the power battery industry as a new energy and environmentally friendly and low-carbon power battery has developed rapidly, and lithium-ion batteries have become the preferred choice for many power batteries due to their excellent performance and mature technology. mainstream development direction. Below, lithium battery manufacturers explain the development level and technical status of the four key materials of 18650 1800mah battery.

　　Development level of four key materials for 18650 1800mah battery

　　Cathode material is the most critical raw material for 18650 1800mah battery, accounting for more than 30% of the cost of 18650 1800mah battery. Due to the rapid development of large-scale lithium battery cathode materials in China in the past decade, product quality has been greatly improved, and strong cost advantages have been achieved, Japanese and Korean lithium battery companies have begun to gradually import lithium battery cathode materials from China in recent years. It is reported that the current market share of China's lithium battery cathode materials has increased Occupying about half of the world, there is still broad room for future development.

　　The anode materials industry is highly concentrated. The top four companies in the world have a combined market share of 78%. Anode materials show a high degree of concentration. At present, the negative electrode materials are mainly carbon materials, which account for a low cost of 18650 1800mah battery, and have basically been fully industrialized in China. In order to be close to resources and reduce manufacturing costs, Japan's major anode material companies have also transferred their production capacity to China, which is rich in graphite resources.

　　The electrolyte transports ions and conducts current between the positive and negative stages of the lithium battery, which is one of the key factors for the battery to obtain high energy, long life and safety. In the past, lithium battery electrolytes have always been dominated by Japanese and Korean manufacturers. However, with the improvement of China's technology and the increasing growth of domestic demand, especially after the localization of lithium hexafluorophosphate, electrolyte production capacity has continued to shift to China.

　　The separator is second only to the cathode material in terms of cost composition, accounting for 20-30%. The performance of the separator determines the interface structure, internal resistance, etc. of the lithium battery, which directly affects the battery's capacity, cycle and safety performance. Benefiting from the increasing demand for downstream new energy vehicle power batteries, the global lithium battery separator industry has developed rapidly. Currently, my country is still in the stage of import substitution in lithium battery separators.

　　Current status of the four key material technologies for 18650 1800mah battery

　　In terms of cathode materials, domestic enterprises are forming a "catch-up" trend in terms of technology and scale, and their future development prospects are promising; in terms of anode materials, domestic enterprises have comprehensive leading advantages, and their industry status has been established, and it will be difficult to be surpassed in the short term;

　　Because electrolytes are controlled by foreign companies due to patents and core additives, and the formula is controlled by customers, domestic electrolyte manufacturers have actually become OEMs; in terms of separators, domestic companies have made slow technological progress, and new systems have not achieved breakthroughs. The industry needs disruptors who can essentially solve the problem.

　　1. Current status of cathode materials: Industry concentration will further increase, and ternary materials deserve attention

　　At present, there are about 200 domestic positive material manufacturers. The advantages of ternary batteries compared with lithium iron phosphate are higher energy density and longer cruising range. The market expects that ternary materials will become the mainstream material for power batteries in the future, but they will face safety assessment tests in the short term and promotion will require a process.

　　2. Current status of anode materials: high industrial concentration, the strong will always be strong

　　The price of graphite anode materials has shown a continuous downward trend in recent years, and this trend is expected to continue in the next few years. By expanding the production scale of anode materials, leading domestic companies in the industry can strengthen their bargaining power in purchasing raw materials for their products, improve the efficiency of production equipment, and enhance market competitiveness.

　　3. Current status of diaphragm materials: There is huge room for import substitution of high-end products

　　In the past few years, the high gross profit margin of lithium battery separators has attracted a large number of new entrants, and the new production capacity has been concentrated in the low-end product field, resulting in an oversupply situation of low-end products, while high technical barriers have made the domestic supply of mid- to high-end products far lower than Market demand, especially high-end products, accounts for about 90% of imported diaphragms. The global diaphragm industry is concentrated in the United States, Japan and South Korea, and there is huge room for domestic development.

　　4. Current status of electrolyte: The boom of the raw material lithium hexafluorophosphate will continue, and the price is expected to usher in a wave of price increases.

　　Due to its high technical threshold, strict production process requirements, long time for environmental protection approval and equipment procurement, the expansion cycle is long, and the expansion cycle is more than 1.5 years. Therefore, we expect that the high prosperity of lithium hexafluorophosphate will last for more than 1 year.

　　According to the current development status, among the four major material fields of 18650 1800mah battery in my country, cathode materials, anode materials and electrolytes have gradually become self-sufficient. Only separator materials are still highly dependent on imports, but the development speed is also very fast. Generally speaking, my country's 18650 1800mah battery There is no shortage of core technologies, and the foundation for industrialization is relatively solid. As companies strengthen technology research and development and the promotion of the new energy vehicle market, the quality of my country's 18650 1800mah battery will further improve and usher in a good period of development.

Read recommendations:

6F22

Analysis of the Causes of Lithium Battery Explosion.18650 lithium rechargeable battery

Master the three major characteristics of lithium iron phosphate battery.48v solar power energy stor

703048 battery Manufacturing

NiMH battery pack