Why does BYD insist on using lithium iron phosphate batteries?

Why BYD insists on using lithium iron phosphate batteries from electric vehicles into the national 863 high-tech development, seven strategic emerging industries listed in the new energy automobile industry, and since 2009, it has implemented two rounds of new energy vehicle subsidy policies by the four ministries and commissions of the country The new energy vehicle industry has achieved rapid development in the past ten years, but my country’s development of new energy vehicle power lithium-ion batteries has always been controversial: in terms of direction, the dispute between ternary lithium manganate and lithium iron phosphate has not yet subsided. Regardless of the advantages and disadvantages of the complex technologies of the competition, as long as we find the key factors and support points for the rapid development and true transcendence of my country's new energy automobile industry, then choosing lithium battery new energy vehicles should not be a complicated problem. In fact, the industry has reached a consensus on these key factors and support points: First of all, for the development of new energy vehicles in China, we must ensure the use of safe, reliable, stable performance, and low-cost power lithium-ion batteries. Safety and reliability are the first First, there will be no future new energy automobile industry without safety; second, in terms of technology, we must have the ability to surpass and lead developed countries and regions, and we cannot always catch up. Only in this way can my country's new energy automobile industry truly realize overtaking in corners. We have found the key factors and support for the development of my country's new energy vehicles. Combining the actual situation of the industry, compare the status quo and development direction of lithium tri-lithium phosphate and lithium iron phosphate. If we continue to develop ternary, our power lithium battery will always be in a state of catching up. Not only will it not be able to achieve overtaking in corners, but it will also lose the safety of new energy vehicles. At present, the core technologies of modified lithium manganate and ternary lithium are in the hands of Japanese and Korean companies. Especially ternary lithium, whether it is technology, process or equipment, the leading industries in Japan and South Korea have reached a very mature and stable stage. At present, the capacity of the 18650 ternary lithium battery of Sanyo, Panasonic, and Samsung SDI has reached more than 3.1AH, while the capacity of the 18650 ternary lithium battery of the most famous ternary lithium battery company in China is only about 2.2AH. The 18650 ternary lithium batteries processed in batches by Sanyo, Panasonic, and Samsung SDI have a consistency of more than 90% in several key battery indicators such as voltage, capacity, internal resistance, discharge platform, and constant current ratio. It can be assembled without configuring capacity and files, but my country's best ternary lithium battery manufacturer cannot do this. If the development direction of my country’s new energy vehicle batteries is to develop ternary lithium batteries, then my country’s new energy vehicle batteries will catch up with Japanese and Korean companies for a long time, and due to the lack of key technologies, processes and equipment, they will also fall into Development bottleneck. Ability improvement. For example, the domestically excellent 18650 ternary lithium battery with a capacity of about 2.2 ah has safety issues. If it is not a breakthrough technology and process, only increase the capacity in terms of material modification or compaction density to improve the pole piece Not only will the cycle performance of the battery be greatly reduced, but more importantly, the safety problem of ternary lithium battery is more prominent. Safe use is one of the three major elements in the development of new energy vehicles. Tesla uses the best ternary lithium battery, Panasonic battery, which cannot prevent three fires in five weeks. Fortunately, Tesla’s advanced car safety design did not cause casualties. How many Chinese new energy vehicle companies can reach Tesla’s car safety design level? The scale of Japanese and South Korean companies is much smaller. Is severely restricted. Samsung SDI reduced the price of its 2.2ah battery processed in 1850 to US$1 this year, almost driving its domestic competitors to desperation. The performance and price of the domestic ternary power lithium-ion battery cannot be compared with the giants of Japan and South Korea. If we insist on the new energy vehicle power lithium-ion battery of Sanyuan Road, I am afraid that we are still catching up on the road. Beyond the curve. The end result will be the same as the development of traditional cars. High-end cars and core technologies will still come from international giants, and even if we give up the market, we will not return the core technologies. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Can the lithium battery charger be used in common with lead-acid batteries?