Why does BYD insist on the path of lithium iron phosphate batteries?

Introduction Why does BYD insist on the path of lithium iron phosphate batteries? As an essential component of electric vehicles, power batteries determine vehicle performance and other aspects. According to the type of power batteries, they can be divided into.

Why does BYD insist on the path of lithium iron phosphate batteries?

As the main component of electric vehicles, power batteries determine vehicle performance and other aspects. According to the type of power batteries, they can be divided into lithium iron phosphate batteries and ternary lithium batteries. in the market, there is not a significant share of ternary lithium batteries, according to the number of batteries equipped in the "Catalogue of Recommended Models for the Promotion and Application of New Energy Vehicles (2020 Batch)" published by the Ministry of Industry and Information. Technology, there are passenger car models equipped with ternary batteries, there are 283 models, accounting for 88.7%; there are 35 models equipped with lithium iron phosphate batteries, accounting for 11.0%. on the market. Although the installed capacity is not large, BYD still insists on using lithium iron phosphate batteries.

BYD still insistson the use of lithium iron phosphate batteries for the following reasons. The first aspect is low cost. The cost of lithium iron phosphate batteries is much lower than that of ternary lithium batteries. battery, the price of ternary lithium battery is about 1-3 w/h, while the price of lithium iron phosphate battery is about 0.7-1 yuan w/h. Judging from the capacity of 40 kW/h, the lowest price is calculated, the price difference between the two is about 12,000 yuan. In comparison, there is a difference between car prices.

The second aspect is good stability. The thermal stability of lithium iron phosphate batteries can reach 350℃-500℃, while lithium manganate and lithium cobalt oxide are only about 200℃. According to the temperature inside the battery, when the temperature between the electrolytes inside the lithium iron phosphate battery reachesAt a high temperature of 500-600°C, its internal chemical components begin to decompose, so there is almost no spontaneous combustion problem. The high temperature performance of ternary lithium batteries is much worse.

In summary, BYD's insistence on using lithium iron phosphate batteries is related to its own battery manufacturing. At the same time, an analysis of battery cost and safety is also a factor in BYD's insistence on the use of lithium. iron phosphate batteries.

This article is from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.

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