6F22 battery

　　Major breakthrough in graphene 6F22 battery technology, focus on positive and negative pole leaders

　　The graphene coating technology developed by a team led by Zhao Jinping, a Ph.D. from the Institute of Metal Research, Chinese Academy of Sciences and chief scientist of Beijing Shengmeng Technology Co., Ltd., can increase the specific capacity of lithium-ion battery cathode materials by 15%-25% and increase the capacity of lithium-ion battery cathode materials after 1,000 cycles. The capacity retention rate is increased by 30%-40%; the capacity of the negative electrode material is increased by 40%-45%, and the capacity retention rate after 1,000 cycles is increased by 35%-50%.

　　This means that applying graphene-coated lithium-ion positive and negative electrode material technology to vehicle power batteries is expected to increase the current energy density of ternary lithium-ion batteries (about 200 Wh/kg) and reach the "Key Points for Smart Cars" "Technology Industrialization Implementation Plan" proposed a target of 300 Wh/kg for vehicle power battery energy density in 2020.

　　June automobile production and sales data released by the China Automobile Association showed that from January to June, the cumulative production and sales of new energy vehicles were 413,000 and 412,000 respectively, an increase of 94.9% and 111.5% respectively compared with the same period last year. Xu Haidong, assistant secretary-general of the China Automobile Association, said that the production and sales of new energy vehicles in the first half of this year were far better than the same period in previous years. It is expected that the development trend will still be good in the second half of the year, maintaining the previous prediction, and the annual production and sales scale will exceed 1 million vehicles.

　　The "Action Plan to Promote the Development of the Automotive Power Battery Industry" requires that the specific energy of new lithium-ion power battery cells exceeds 300Wh/Kg; the system specific energy strives to reach 260Wh/Kg. It is also proposed that the total production capacity of power lithium batteries will exceed 100GWh by 2020, forming a leading enterprise with an annual production and sales scale of more than 40GWh. Driven by the production and sales of new energy vehicles, the installed capacity of power batteries reached 36Gwh in 2017, an increase of 21%. According to statistics from the Advanced Industrial Research Institute, in May 2018, the installed capacity of lithium batteries in the new energy vehicle market reached 4.5GWh, a year-on-year increase of 181%. From January to May this year, the cumulative installed capacity of the new energy vehicle market reached 12.7GWh. , a year-on-year increase of 199%.

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