high Lithium battery manufacturers believe that operating characteristics

　　Overall situation: As of August 2018, the members of the alliance reported a total of 279,000 public charging piles, of which 123,000 were communicated, 93,000 DC charging piles, and 63,000 integrated charging piles in the integrated and DC charging piles. In August 2018, 3,959 new public charging piles were added compared to July 2018. From September 2017 to August 2018, there were about 7,728 public charging piles a monthly average of 7,728 public charging piles.August 2018 rose 50.0%year -on -year.

　　Charging infrastructure operator data: 16 national large -scale operator companies (charging facilities ownership> = 1000);

　　Charging volume data: According to the statistics of the charging alliance, the national charging capacity is important in the three areas of the Pearl River Delta, the Yangtze River Delta, and the Midwest. The battery flow of Sichuan, Hunan, and Shanghai is mainly based on special vehicles such as buses and supplemented by passenger cars. The country's total charging power was about 217 million KWh, an increase of 26 million KWH over the previous month. Among them, 43.148 million kilowatt -hours in Guangdong Province, 200.38 million kilowatt hours in Shaanxi Province, 19.885 million kilowatt hours in Jiangsu Province, 14.909 million kilowatt hours in Hubei Province, 13.95 million kWh of Fujian Province, 13.473 million kWh Beijing, 13.14 million kilowatt -hours in Shandong Province , 12.783 million kilowatt -hours in Sichuan Province, 11.263 million kilowatt -hours of Hunan Province, and 10.474 million kilowatt -hours in Shanghai.

　　Classified high Lithium -ion batteries and its characteristics according to the material system

　　First, high Lithium manganate system, battery negative materials are mainly graphite.

　　Its gram capacity is low, but the density density is high, and the overall energy density is equivalent to the iron phosphate; the big problem is that it is easy to dissolve during higher temperature work. It is necessary to improve its temperature tolerance through participation and surface treatment, and its stability and safety are not as good as iron phosphate.

　　Second, manganese -phosphate iron high Lithium system, negative extremely graphite.

　　The material maturity is low, the electronic resistance is high, and the current life span is relatively short. Because the iron high Lithium and high Lithium manganese high Lithium are mixed, there are two sections of the platform voltage. When making a group strategy, the impact of SOC is not consistent.

　　Third, high Lithium iron phosphate batteries, negative extremely graphite

　　high Lithium battery manufacturers said that the voltage platform is very stable, the energy is well played, the raw material reserves are large, and the economic performance is good. At the same time, there is almost no problem of heat loss (thermal output temperature is above 800 ° C), and the material system is very safe. Because the characteristics of the battery material are high, the battery in the iron phosphate can be used as a large -capacity monomer battery cell (as high as hundreds of safety), which is conducive to the system's group efficiency (calculated by the weight of the weight, the hard shell battery can be used to achieve the hard shell battery can achieve the hard shell battery can reach the hard shell battery. 78%of the group efficiency). Iron phosphate has been widely used in hybrid, pure electric bus, and power storage systems of power grids and home. It is currently a high Lithium -ion power battery that is currently in the new energy buses.

　　Fourth, the three -yuan material battery, most of the nickel cobalt manganese mixed works are used as the positive electrode material, and nickel cobalt aluminum is also used as a positive electrode material (such as the Panasonic battery used by Tesla), which is negatively graphite.

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