Rely on high safety and long mileage to win the prospect of CATL lithium iron phosphate battery

On March 1, the Department of Equipment Industry of the Ministry of Industry and Information Technology released the second batch of “catalogue of recommended models for promotion and application of new energy vehicles” in 2017, including 201 models of 40 companies, including 36 models of new energy passenger vehicles. 128 new energy buses and 37 new energy vehicles.

In the field of pure electric buses, the competition between fast charging and non-fast charging is long-standing. In the second batch of recommended catalogues, what kind of competitive pattern is there between fast-charged and non-fast-charged pure electric buses? Among the 128 new energy buses, there are 5 fast-charged pure electric buses, namely: Yutong Bus 2 and Xiamen Golden Dragon 3. The power batteries used in these five fast-charged pure electric buses are all lithium iron phosphate batteries in the Ningde Era (CATL)!

What about the subsidy status of the five pure electric buses equipped with CATL lithium iron phosphate fast charge batteries?

It is known from the central government's adjustment of subsidies that fast-charged pure electric buses are subdivided into subsidy coefficients according to the fast charge rate, in which the fast charge rate is 15 times higher than the 1.4 times subsidy, and the fast charge rate is 5 times to 15 degrees higher than 1 time. Subsidy, with a quick recharge rate of between 3 and 5C in accordance with a 0.8-fold subsidy. Comparing the fast charging rate of 5 pure electric buses, it can be found that the fast charging rates of 5 pure electric buses are all between 5 and 15C. That is to say, the 5 fast-charging pure electric buses in the second batch of recommended catalogues can be followed. 1 times the central government subsidies.

In fact, the fast-filling technology has a large number of flowering routes and genres. There are lithium iron phosphate, lithium titanate, multiple lithium complexes, and lithium manganate races. From the second batch of catalogs, although the market entered late, CATL EnerSpeedy super fast charging technology came on top and eventually gained market recognition.

According to Wang Shengwei, head of the CATL fast charging team, as a complete fast-charge solution, in addition to increasing the charge rate, the fast charging technology has to consider four other indicators, namely, energy density, lifespan, safety, and price, otherwise the charging rate alone is discussed. it's meaningless. The five indicators are in a relatively stable radar chart. How to avoid sacrificing energy density and cycle life, and to safely and steadily increase charging speed is the ultimate pursuit of CATL's fast charging team.

At the cathode, CATL EnerSpeedy uses a more secure lithium iron phosphate, which meets the safety requirements of new energy passenger vehicles with many passengers and harsh operating conditions. CATL makes the positive electrode more conductive by creating "super electron network" technology. At the negative electrode, CATL uses the "rapid ion ring" technology to create a highway on the surface of graphite, which greatly accelerates the insertion of lithium ions in the graphite layer. In order to solve the problems of fast charging of fast-charged batteries at low temperatures and overheating at high temperatures, CATL has also developed a thermal management system to truly achieve “full climate” fast charging.

After many years of technological accumulation and inheritance, CATL has the advantages of high security and long cruising range, and the application prospect of EnerSpeedy super fast charging technology market is bright!