According to the news, from the China Science and Technology Achievements Evaluation Conference held in Beijing on the 16th, it was learned that China's graphene-coated modified lithium-ion battery is a major breakthrough in anode material technology. After testing, Institute of Metal Research, Chinese Academy of Sciences Dr. Zhao Jinping, the chief scientist of Beijing Shengmeng Technology Co., Ltd., led the team to develop graphene coating technology, which can increase the specific capacity of lithium ion battery cathode materials by 15%-25%, and increase the capacity retention rate after 1000 cycles. %-40%; Increase the capacity of the anode material by 40%-45%, and increase the capacity retention rate after cycling 1000 times by 35%-50%.
This means that the application of graphene-coated lithium ion positive and negative electrode materials to automotive power batteries is expected to increase the energy density of the current ternary lithium-ion battery cells (about 200 watt-hours/kg), reaching the key to smart cars. The Technology Industrialization Implementation Plan proposes the target of 300 watt-hours/kg of energy density indicator for vehicle power batteries in 2020.
