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Lithium iron phosphate is starting to turn around in the field of vehicle power

Hit Count:4 Date:2019-09-23

In the newly released 8th batch of "Recommended Catalogue of New Energy Vehicle Promotion and Application Models" in 2019, 170 pure electric vehicles are equipped with lithium iron phosphate batteries (one of which is lithium iron phosphate battery), in all 229 models. Among the pure electric models, it accounts for 74.23%.


2019, 1-8 batches of new energy vehicles recommended catalog new models of lithium iron phosphate models accounted for changes in the trend chart

It can also be seen from the above figure that since 2019, the proportion of models equipped with lithium iron phosphate batteries in the total number of recommended catalogues in the current period has generally increased. Lithium iron phosphate batteries are starting to turn their backs when financial subsidies have fallen sharply and vehicle safety has received increasing attention.

The financial subsidies for new energy vehicles have fallen sharply. In 2019, passenger car subsidies fell by more than 70%, and vehicle manufacturers are more sensitive to battery costs. Zhang Yu, secretary-general of the Power Battery Application Branch, believes that the cost of lithium iron phosphate battery can be 10-15% lower than that of the ternary battery. It has a great cost advantage, so many passenger car companies began to turn their attention to iron phosphate this year. lithium.

Despite the subsidy requirements, many lithium iron phosphate passenger cars do not dominate, but in the face of the huge sinking market, the cheaper A0 grade lithium iron phosphate models are more popular in third- and fourth-tier cities and towns.

Zhang Yu also believes that safety is another important condition for lithium iron phosphate batteries to “turn over” in the passenger vehicle market. In recent years, pure electric vehicle safety accidents have occurred frequently. Although many industry experts have called for some trial and error and growth space for electric vehicles, consumers always hold high requirements for the safety of electric vehicles. Therefore, electric vehicles equipped with relatively safe lithium iron phosphate batteries have once again become the choice of many consumers.

Similarly, technological advances have also helped lithium iron phosphate batteries to re-emerge in the "stage" of new energy vehicles.

It is also the eighth batch of new energy vehicle catalogues in 2019. In terms of energy density, there are 31 models with lithium iron phosphate batteries that have a system energy density of 160 Wh/kg or more, up to 161.27 Wh/kg. Among the pure electric vehicles equipped with ternary batteries in the same batch, 18 models have a system energy density of 160 Wh/kg or more and a maximum of 175 Wh/kg. It can be seen that the system energy density of the lithium iron phosphate battery is gradually approaching the ternary battery.

BYD, which has been cultivating lithium iron phosphate for many years, plans to introduce a new generation of lithium iron phosphate battery in 2020, which will increase the energy density by 50%. Zhang Yu believes that this means that under the same model, the new BYD lithium iron phosphate battery will increase the battery capacity by 50%. Although it may also bring about the weight increase, the actual endurance performance must be substantial. Upgrade.

In terms of cycle life, the capacity of lithium iron phosphate battery after charging and discharging cycles is about 3500 times, and the capacity begins to decay. The ternary lithium battery usually shows a decline after 2000 cycles of charge and discharge. The two are far apart, lithium iron phosphate The advantages of the battery are once again revealed.

In the 8th batch of recommended catalogues, the number of new models of passenger cars and special vehicles equipped with lithium iron phosphate batteries is almost 1:1 (82 vs. 79), continuing the proportion of the 7th batch (100 ratios) 105), which also shows that in the field of new energy special vehicles, lithium iron phosphate batteries are being favored.

Zhang Yu said that the compound growth rate of lithium iron phosphate power battery shipments in 2018-2022 is expected to exceed 30%. It is foreseeable that the market share of lithium iron phosphate batteries will increase significantly in the next 2-3 years. At the same time, compared with the ternary battery, China has the largest investment in lithium iron phosphate battery, and the largest production and sales volume. The maturity of the industry and the cost performance of the product are also the highest. It has certain advantages in the global scale, with the lithium iron phosphate battery. The application of products is gradually increasing, and the advantages of China's industrial sector in this respect will gradually emerge.

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