![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
Recently, the research results of the "High Energy Density All-Liquid Organic Electrochemical Active Material Flow Battery" completed by the Beijing Low-Carbon Clean Energy Research Institute and the Department of Chemical Engineering of Tsinghua University were published in the latest issue of "ACSAppliedEnergyMaterials" sponsored by the American Chemical Society, and It has been reported as a key cover of magazines and has received widespread attention from the society.
High energy density negative electrolyte developed by the Low Carbon Institute
It is reported that large-scale energy storage (or grid energy storage) technology is a key technology to improve the connection rate and popularization of renewable energy, as well as the development of energy Internet, distributed power generation, power auxiliary frequency modulation, off-grid power supply, safe backup power supply and other fields Key enabling technology.
The research results of the "High Energy Density All Liquid Organic Electrochemical Active Material Flow Battery" completed by the Beijing Low Carbon Clean Energy Research Institute and the Department of Chemical Engineering of Tsinghua University for the first time proposed an organic liquid battery based on all liquid active materials. The theoretical energy High density, high theoretical power density and good reactivity, it is one of the most promising large-scale energy storage technologies. Compared with traditional flow batteries, it has good safety, independent design of power and capacity, and energy storage time. Long, high output power, large energy storage capacity and easy expansion.
Photograph and test results of the high power density flow density flow battery stack developed by the Low Carbon Institute
The power density of a typical kilowatt-level flow battery exceeds 500mWcm-2, which is 2-3 times higher than that of a traditional flow battery of the same level. It realizes the miniaturization of stacks and the high efficiency of materials, and has obvious advantages of low cost. At the same time, the positive and negative electrodes of the flow battery use 2,5-di-tert-butyl-1-methoxy-4- (2-methoxyethoxy) benzene and 2-methyldibenzene, which are rich in raw materials, respectively Ketone. The open circuit voltage of the battery reaches 2.97V, which is 1-1.5 times higher than the traditional flow battery, and the theoretical energy density reaches 223Wh / L, which is more than 4 times the theoretical energy density (50Wh / L) of the traditional flow battery.
Experiments show that the active materials at the two poles of the active flow battery have excellent electrochemical performance and better cycle stability, with a current efficiency of 95% and an energy efficiency of 70%. The study initially explores the direction of successfully improving the energy density of flow batteries from a completely new perspective, and is of great enlightening significance for the research and development of new generation flow battery technologies.
Cylindrical Roller Bearing,High Temperature Cylindrical Bearing,Precision Cylindrical Roller Bearings,Double Row Cylindrical Roller Bearings
Shanghai Yi Kai Cheng bearing Co., LTD , https://www.ykchbearing.com