Electrochemical energy storage technology is the key to solve the grid-connected generation of electric vehicles and renewable energy. Lithium-ion batteries that use organic solvents as electrolyte have advantages in energy density but have potential safety issues and limited lithium resources. In contrast, water-based non-lithium ion (such as sodium, potassium, zinc, magnesium, etc.) batteries have the advantages of high safety and low cost, and have important application prospects in energy storage. Since 2013, the Power Lithium Battery Engineering Laboratory of Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences has made a prospective layout of a new concept battery for non-lithium-ion batteries and made a series of progresses in the basic research of new concept batteries for water-based ions (Scientific Reports 2013 , 3, 1946; ChemSusChem 2014, 7, 2295; Advanced Energy Materials 2015, 5, 1400930; Scientific Reports 2015, 5, 18263; Nature Communications 2016, 7, 11982). However, the water-based ion battery cycle life is more limited, generally less than 1000 times, it is difficult to meet the needs of large-scale energy storage. In 2015, Dai Hongjie, a professor at Stanford University in the US, reported in Nature (2015, 520, 324) that a new type of aluminum ion battery has attracted a great deal of attention from academia and industry due to its durability, low flammability and cost. Inspired by the work, Ningbo Materials Power Lithium Battery Engineering Laboratory carried out graphene as the electrode of the aluminum ion battery research, recent research work with Large-sized few-layer graphene enables an ultrafast and long-life aluminum-ion battery The title is published online at Advanced Energy Materials, DOI: 10.1002 / aenm.201700034. In this work, researchers use mass production of multi-layer graphene (produced by Ningbo Meixi Technology Co., Ltd.) as a flexible positive electrode, aluminum as a negative electrode, and an ionic liquid as an electrolyte to construct an ultra-long cycle life and super High-rate performance 2 V aluminum ion battery. It is found that both the thickness (number of layers) and transverse dimension of two-dimensional flake graphite negative electrode material have an important influence on the embedding behavior of AlCl4- ions. Relative to the number of layers of flake graphite, the number of layers of graphene is very small (less than 10 layers), can significantly reduce the activation energy of AlCl4- ions embedded and diffused, making the battery has super high rate performance, so Charge and discharge can be completed within 1 minute. On the other hand, electrodes made from larger layers of multi-layer graphene have greater resistance to repeated insertion and ejection of AlCl4- ions due to their greater flexibility and graphitization, allowing the battery to behave Long cycle life, charge and discharge cycles after 10,000 times almost no attenuation. In addition, this work further reveals the intercalation mechanism of AlCl4- ions in the two-dimensional graphite cathode materials such as multi-layer graphene and graphite by a series of fine characterization, that is, the fourth- and fifth-order structures induced by intercalation ions Change mechanism. The research work not only has an important guiding significance for the choice of graphite anode materials in aluminum ion batteries, but also has great academic value for the development of a new type of long-life energy storage battery with practical graphene. The above research work has been funded by key projects of Chinese Academy of Sciences, projects of Youth Promotion Association of Chinese Academy of Sciences, National Natural Science Foundation of China and Zhejiang Provincial Natural Science Foundation. Packing Bag,Vacuum Pack Bags,Vacuum Seal Storage Bags,Packing Bags For Clothes Jiangmen Yingzhihui Electronic Commerce Co., LTD , https://www.yzhprint.com