As can be seen from recent batch of “New Energy Automobile Promotion Application Recommended Type Catalog”, lithium iron phosphate ion batteries occupy an absolute advantage in pure electric passenger cars and special vehicles, and improved in the application ratio in passenger cars. On September 9, the Ministry of Industry and Information Technology announced the eighth batch of “New Energy Automobile Promotion Application Recommended Model” (hereinafter referred to as “promotion catalog”), including 246 models. From the battery technology route, the lithium iron phosphate ion battery has a 169 model, accounting for 69%, and in the first batch, the second batch of “promotion catalog”, this ratio is 45%, 58%, respectively.
. Lithium iron phosphate ion battery rebuilding. High security, low cost, long life, three core advantages of lithium iron phosphate ion batteries.
With the continuous breakthrough of technical bottlenecks, the energy density of lithium iron phosphate ion battery continues to increase, and the market is favored to increase the weight level weight.. Technically iterative accelerated energy density continuously enhances the industrial research report released by the Pacific Securities, the gram of lithium iron phosphate positive material has substantially increased from 120mAh / g to 145mAh / g.
This means that the energy density of the lithium iron phosphate ion battery has a significant improvement. This is validated in this new energy car exempt from the purchase tax directory and “promotion catalog”..
According to the statistics of the multiplier, from 2014 to 2018, the power lithium battery energy density of the pure electric passenger car is exempted from 85WH / kg to 138Wh / kg, which has increased by 62%.. In addition, from the “promotion catalog”, a total of 1762 new energy passengers have been announced in 2018, with 93% of the energy density of the power lithium battery, which, of which the energy density is from 140WH / kg-150Wh / kg new energy There is 1006 passenger cars, accounting for 57%, and some models have more than 150Wh / kg models.
. Behind the performance improvement, it is the technology accumulation precipitation and innovation..
As the earliest industrialized power lithium battery technology route, my country’s mainstream phosphate ion battery company continuously innovates from the battery design, material selection, process matching, production equipment, PACK lightweight, etc., lithium iron phosphate ion battery technology is constantly iterative, Energy density continues to improve. A few days ago, BYD revealed at the Performance Exchange Conference, will launch a new generation of phosphate ion battery next year, the volume is 50% higher than the energy density, the life of 8 years is 1.
2 million kilometers, and the cost decreases by about 30%.. Equipped with new batteries, new car life can reach 500-600km.
“The volume is 50% higher than the energy density, although it may cause weight, but the final actual battery life must be greatly improved.. “my country’s Chemistry and Physical Power Industry Association Power Lithium Battery Application Branch Secretary Zhang Yu said.
As a company in China, the company has a carousel lithium iron phosphate ion battery. Guoxuan high-tech has completed the product upgrade of the phosphate monomer energy density 190Wh / kg, and the energy density of the passenger car system is 140Wh / kg. Can meet the new energy vehicle for more than 400km battery life.
Wang Xiaoyang, general manager of Guoxuan High-class Passenger Division, said that in 2019, Guoxuan High Technology Plan increases the energy density of lithium iron phosphate monomer core to 200WH / kg, and the system energy density is increased to 160Wh / kg.. According to industry, the breakthrough in technical bottlenecks has brought the new dawn from the phosphate ion battery.
After the energy density continues to increase, its high cost advantage is enlarged, and the attraction of the market is self-evident.. The core advantage has continued to rise from recent batch of “promotion catalog”.
. “New energy bus or will receive a further support of the policy, and thus tonize the lithium phosphate ion battery industry; for consumers in three or four-tier cities, even towns, low price, high safety, high safety lithium iron battery More market competitiveness; special car fields began to match the lithium phosphate ion battery this year, and an important factor in the market. Zhang Yu explained.
For models of different market positioning, the main plant has different requirements in the energy density and technical route of dynamic lithium battery.. At the A0 and A00-level models, consumers are more sensitive to prices, and they are more popular with the market by replacing lithium iron phosphate ion batteries.
. Cheng Yuxi, deputy general manager of Huading Guo Di Power Lithium Battery Co., Ltd.
, pointed out that the energy density of the lithium iron phosphate ion battery has been in line with the basic battery life requirements of electric vehicles, and the cost is 10% to 15%, medium The low-end model can save 0.3-0.6 million yuan by replacing the lithium iron phosphate ion battery.
. Regardless of performance or price, lithium iron phosphate ion batteries have a certain advantage. The reporter found that the information found that Jianghuai Automobile increased the battery replacement process, a total of 6 models were equipped with a lithium iron phosphate ion battery; Beiqi New Energy’s ECU220 added a standard version of the phosphate ion battery , Compared to the first two versions, the price is not rising and fall; SAIC is generally five-riling, Chery also declares a model equipped with lithium iron phosphate ion batteries.
. At the same time, as the “heart” of the new energy car, the safety of the power lithium battery is always the focus of the industry concerned. Since the thermal decomposition temperature of the lithium iron phosphate positive electrode material is high, the amount of heat is low when the heat is out of control, and therefore, the battery pack structure is the same, and the safety of the lithium iron phosphate is generally in the same conditions.
High than ternary batteries. “Lithium-lithium-free battery charge circulation is only attenuated by about 3,500 lithium phosphate ion batteries, and the ternary lithium-ion battery usually recession after 2000, there is a significant gap..
“Zhang Yu said. Wang Xiaoyang said that the lithium iron phosphate ion battery is basically the life of the whole vehicle, reaching 8-10 years..
Jianghuai generation car in the 2011 market, many users are still in use, fully illustrate the safety, reliable lithium iron phosphate ion battery. Policy orientation to market-oriented prospects is worth looking forward to in 2020, the new energy automotive industry will enter the non-subsidy era, when policy-directed steering market guides, the focus of caring enterprises will also take advantage of “Take more subsidies” to occupy more markets Share “transformation. Liu Jincheng, chairman of Yiqi Lithium, said that subsidizing a resurrection is conducive to the true formation of the new energy vehicle market, only the technical direction is clear, and the quality pass will win the market.
. “After the subsidy is completely exited, the power lithium battery industry will enter the market demand to pull the industry rise, the selection of technical routes will be handed over to the market..
High security, long life cycle, have a high cost-effective product will become an important need for market. “Liu Jianbo, chairman of Anda Science and Technology, said that there will be a lot of lithium iron phosphate ion batteries, especially for 200 kilometers or less, in particular, 200 kilometers or less, in particular, 200 kilometers or less, in particular, 200 km or less, selling price below 150,000 yuan Car market. Therefore, from 2020, the lithium iron phosphate ion battery will become an important part of a passenger vehicle power lithium battery loading method.
. Zhang Yu pointed out that the compound rate of lithium iron phosphate ion battery shipments in 2018-12022 expects more than 30%, which will have a greater impact on the existing multi-dynamic lithium battery technology route market pattern, expect to come within 2-3 years. , Lithium iron phosphate ion battery market share will have a large increase.
Yang Yusheng, academician of our engineering, proposed that the extensive mixed power vehicle and lithium iron phosphate ion battery is an excellent matching combination. In his opinion, the lithium iron phosphate ion battery is used in the extension electric vehicle market, which can not only improve the safety of the vehicle, but also support the marketization of the extension electric vehicle, exempt the mileage, safety, price, and charging of pure electric cars. , Follow-up battery problems, etc.
. In addition, with the rise of the energy storage industry, the power lithium battery company has layout the energy storage business, and also opened a new world for the lithium iron phosphate ion battery..
It is reported that lithium iron phosphate ion batteries have been widely used in user-side and grid-side frequency modulation, which becomes an important force for the application of energy storage.