Ternary lithium battery VS lithium iron phosphate battery

The main advantages of lithium iron phosphate batteries are high safety and longer cycle life, which can theoretically reach 7 to 8 years, but the disadvantage is that the energy density is low, which means poor battery life.

The main advantage of ternary lithium batteries is that the energy storage density is higher, which means high endurance, but the disadvantages are poor safety, easy to explode, and poor life.

It is worth noting that the cost of lithium iron phosphate batteries is lower than that of ternary lithium batteries, and car companies are replacing lithium iron phosphate batteries with lithium iron phosphate batteries. Lithium iron phosphate has huge market prospects.

In April, BYD stated that BYD Han is equipped with blade batteries. In June, BYD has decided to expand the "blade battery" production line of Chongqing Fudi, from the current annual production capacity of 6GWh to more than 13GWh by the end of this year. Subsequently, the 2021 Tang EV will cancel the ternary lithium battery of the current model, and use the same blade battery as the Han pure electric version, and the cruising range of the two-wheel drive version will also be greatly increased by 45km.

The so-called "blade battery" is an improved version of the lithium iron phosphate battery, which improves the packaging efficiency and greatly improves its energy density. Therefore, it has high safety under high temperature conditions or overcharging, fast charging, high discharge power, long cycle life, safety and environmental protection.

In July, the installed capacity of Guoxuan Hi-Tech increased by 81.7% month-on-month, of which the installed capacity of the passenger car segment increased by 34.1% month-on-month, and the macro MINI EV model that brought the largest increase space. Guoxuan Hi-Tech provided lithium iron phosphate batteries for the car.

In addition, it is understood that the single energy density of Guoxuan Hi-Tech's lithium iron phosphate battery has exceeded 200Wh/kg. At the same time, by improving the battery pack structure design and grouping process, the lithium iron phosphate battery system energy density of 160Wh/kg products have begun Industrialization advances.

In terms of energy storage, lithium iron phosphate batteries have huge incremental space. It is predicted that the demand for lithium iron phosphate batteries for newly built and renovated 5G base stations in 2020 will reach 10GWh.

Although the current market share of lithium iron phosphate batteries is far less than that of ternary lithium batteries, lithium phosphate batteries will have better development in the future by virtue of their own advantages. Market research institutions said that lithium iron phosphate is expected to surpass nickel cobalt lithium manganate ternary batteries to become the dominant electrical energy storage chemical in the next ten years, and will gradually dominate the electric vehicle field after gaining a firm foothold in the energy storage market. .