LiFePO4 battery technology -Lithium - Ion Battery Equipment

The return of lithium iron phosphate battery technology -Lithium - Ion Battery Equipment

1. Why can lithium iron phosphate return?

When electric vehicles were first developed in the early years, we would see that the power lithium batteries of many vehicles used lithium iron phosphate. However, in recent years, the reputation of ternary lithium has become more famous. When buying a car, you will even ask "what is this car?" Is the battery ternary lithium?" Lithium iron phosphate battery seems to have become a type of battery that has been eliminated. However, the recent news that TSLA may use lithium iron phosphate batteries and the application of BYD's "blade battery" have brought people's attention back to lithium iron phosphate batteries. Are we going to use lithium iron phosphate batteries again? Is it a "regression" of technology or a "concession" of capital? Let's talk today.(Lithium - Ion Battery Equipment)

The important core points of this article:

1. If TSLA wants to use iron phosphate batteries, the big reason is that they see the advantage of low cost. They want to use them to reduce the price of entry-level models and expand their competitive advantages.

2. With the accelerated decline of subsidies and the intensification of market competition, the low-cost advantage of lithium iron phosphate batteries is optimistic again.

3. The new packaging technology enables iron phosphate batteries to have similar battery energy density to ternary lithium batteries, the same cruising range, and lower prices. The return of iron phosphate batteries is not a technological regression.

4. It is more suitable to choose low-cost, long-life and high-safety lithium iron phosphate batteries for mini-vehicles.

1. Why can lithium iron phosphate batteries return?

1. Cost of ownership advantage

In terms of domestic battery costs, according to the data of True Lithium Research, as of the end of 2019, the unit price of domestic ternary lithium battery packs is 1.05 yuan/Wh; the unit price of lithium iron phosphate battery packs is 0.8 yuan/Wh. According to Reuters, TSLA and CATL are discussing battery supply. Reuters quoted a source directly involved in the negotiations between TSLA and CATL as saying that lithium iron phosphate batteries are at least 10% lower in cost than those currently used by TSLA. .

TSLA has been accelerating the process of localization of all parts and components since it was launched in China. One of the purposes is to reduce production costs. At present, the domestic TSLA Model 3 standard battery life rear-drive upgraded version is priced at 299,050 yuan after subsidies. According to the 10% cost reduction estimated by the above-mentioned people, using a cheaper battery pack can also give TSLA about 30,000 yuan in price reduction. . In this way, the price threshold of the domestic Model 3 may be expected to be less than 260,000 yuan, and its competitive advantage will be further expanded, which will be a big impact on competitors.

2. Subsidies decline and return to rationality

The rapid rise of ternary lithium batteries in recent years is inseparable from the help of domestic subsidy policies. In recent years, the state has favored models with long cruising range and high energy density of battery systems in subsidies, so the products of car companies are moving in this direction.

However, by 2020, the state's subsidies for new energy will gradually decline, and will eventually disappear completely in the future. After the subsidy declines, in order to maintain the price advantage of the models, the choice of power lithium batteries has returned to "rational", and the cost and benefit must be recalculated. The relatively low cost lithium iron phosphate battery has become a lot of cars. company's choice. And this is related to us consumers, we hope to see that after the subsidy declines, the car price can remain unchanged and unaffected.

3. Can there be subsidies for using lithium iron phosphate batteries?

Although the subsidy has declined, what consumers are most concerned about is whether there is still a subsidy for vehicles using lithium iron phosphate batteries? According to the 2019 national subsidy policy, the cruising range of the vehicle must be at least 250km, and the energy density of the battery system is not less than 125Wh/kg. Can the current lithium iron phosphate battery system do it?

Therefore, from a technical point of view, it is not difficult to achieve the above two indicators, such as BYD Han EV, according to the subsidy standard in 2019, it can still get a subsidy of 24,750 yuan. In fact, it can be seen from the two indicators of cruising range and battery energy density that models equipped with lithium iron phosphate batteries can already compete with models with ternary lithium batteries.



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