Abstract With the rapid development of the electric vehicle industry, power batteries have become an important element. The industrial status of lithium iron phosphate batteries can therefore be divided into two levels: one is the status of lithium batteries in the battery industry, and the other is the status of lithium iron phosphate batteries.
With the rapid development of the electric vehicle industry, power batteries have become an important element. The industrial status of lithium iron phosphate batteries can therefore be divided into two levels: one is the status of lithium batteries in the battery industry, and the other is the status of lithium iron phosphate batteries in lithium batteries.
On the first level, lead-acid batteries, nickel-hydrogen batteries and lithium-ion batteries are currently used as power batteries. Lead-acid batteries are strictly restricted. Because of their high pollution, they are currently restricted to the field of small electric bicycles; Ni-MH batteries have mature technology and low purchase and use costs, but they have high self-discharge rate and low specific energy, which can only be used as a transitional one. Batteries: Only lithium-ion batteries can comprehensively match electric vehicles, which have the characteristics of long cycle life and low self-discharge rate.
On the second level, the difference between various lithium iron phosphate batteries is manifested in price and safety, and safety is a performance that fundamentally determines the status of different genre power lithium batteries. From the perspective of cathode materials, lithium-ion batteries can be divided into four categories: lithium cobalt oxide, lithium manganate, ternary materials, and lithium iron phosphate. Lithium cobalt oxide battery has the highest degree of industrialization and the most mature technology, but due to safety considerations, it is mainly used in the field of small batteries such as mobile phones and digital products. Among the remaining three types of lithium batteries, lithium iron phosphate batteries are favored by the industry due to their advantages in cost and cycle life, and become the development direction of China's power lithium batteries.
In China, the industrialization of lithium iron phosphate batteries and their materials is basically synchronized with the international development. Looking ahead, its application fields may penetrate from the fields of electric vehicles, electric bicycles, and power tools into wind power, solar power generation devices, medical equipment, miner’s lamps and other fields. . If calculated on the basis of an annual growth rate of 10% to 20%, the current four major application areas (electric vehicles, electric bicycles, electric scooters, and electric tools) alone, the power lithium battery will have 15 billion yuan in the next 5 years Market size. If all lithium iron phosphate batteries are used for driving, by then, the lithium iron phosphate cathode material will reach a market size of 4.5 billion yuan.
Although China's lithium iron phosphate is on the international starting line, the cost of Chinese products is relatively low, but it also puts itself below the critical point of industrialization in this regard, especially in patents, there is still more room for improvement.
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