In recent years, in the research and development of energy storage carbon materials and devices, researcher Chen Chengmeng led the 709th group of the Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences to make a series of progress. The team solved a series of scientific problems in the preparation and application of energy storage carbon. Through collaborative innovation in industry, academia and research, it broke through the core technology of large-scale production of energy storage carbon materials such as graphene, capacitor carbon and spherical graphite, and designed and assembled supercapacitors and lithium ions. Energy storage devices such as batteries and lithium-sulfur batteries form application demonstrations for electric vehicles, road stud lights, and drones. The structural evolution mechanism from the conversion of organic precursors such as biomass and macromolecules to inorganic carbon materials, and the structure-activity relationship between the microstructure of the materials and the electrochemical performance are the common key scientific issues for the controllable preparation and directional application of energy storage carbon. The team explained the main / side chain competition reaction and the carbon-carbon bond breaking and bonding mechanism in the crosslinking process of starch molecules, providing a scientific basis for the controlled conversion of biomass to capacitive carbon (ACS Sustainable Chem. Eng., 2019, 7 , 14796-14804); studied the evolution path of oxygen-containing functional groups during thermal reduction of biomass and phenolic resin-based capacitor carbon or hard carbon, and established a relationship with their performances such as supercapacitors and lithium-ion batteries, which is the surface structure of energy storage carbon materials Optimization indicates the direction (J. Energy Chem., 2020, JECHEM1233; Electrochim. Acta, 2020, 337, 135736-11; J. Energy Chem., 2018, 27, 439-446); explains the activation of phosphoric acid on the surface of porous carbon The chemical mechanism of phosphorus doping, and found its stabilizing effect on the electrochemical interface, provides a new idea for the surface structure design of high-voltage capacitor carbon (ACS Appl. Mater. Interfaces, 2019, 11, 11421-11430; Electrochim. Acta, 2019, 318, 151-160; Electrochim. Acta, 2018, 266, 420-430.). The team also reviewed the domestic and foreign scientific research progress and development trends in the field of biomass-based capacitor carbon and phenolic resin-based carbon aerogel (J. Mater. Chem. A, 2019, 7, 16028-16045; Micropor. Mesopor. Mater. , 2019, 279, 293-315.). The team of Chen Chengmeng cooperated with Jinneng Group, Meijin Group and Shanxi Sanwei and other enterprises to overcome the pilot test technology of ton-scale redox graphene, ten-ton biomass-based capacitor carbon and ton-scale coal-based spherical graphite, and open up a full set of technological processes The development of supporting key equipment has realized the leap of related materials from "sample" to "product". The team's pilot test preparation technology for graphene has passed the Shanxi Scientific and Technological Achievement Appraisal, and the products have been widely used in more than 100 domestic and foreign enterprises and research institutions such as the 18 CEC, 42 Aerospace Science and Technology, and China Aviation Development Beijing Aviation Materials Institute. Capacitive carbon pilot products have successfully passed the application evaluation of domestic capacitor leading companies such as Ningbo CRRC, Jinzhou Kaimei and Shanghai Aowei. Recently, the team has cooperated with Meijin Energy to start the first phase of an annual output of 500 tons of capacitor carbon industrialization project, and it is expected to produce batches of qualified products in 2021. In order to serve the accurate and efficient research and development of energy storage carbon materials, Group 709 has built an international advanced electrochemical energy storage device assembly and evaluation platform. Relying on independent carbon materials, we designed and assembled advanced energy storage devices such as supercapacitors, lithium-ion batteries, and lithium-sulfur batteries, and formed application demonstrations for road stud lights, electric vehicles, and drones. Through the integration of upstream and downstream resources, the transition from "unit matching" to "system integration" has been achieved. While feeding back and guiding the optimization of the material process, it has realized the precise docking of the needs of the energy storage industry. At present, the team has established close cooperative relations with Ningbo CRRC, Ningde Times, Saudi Basic Industries Corporation, Xiamen University, Institute of Aerospace Information Innovation, Chinese Academy of Sciences and Dalian Institute of Chemical Physics. The team has formed a complete intellectual property layout in terms of energy storage carbon materials and devices. At present, it has applied for 3 PCT patents, 45 national invention patents, and 5 utility model patents, of which 19 have been authorized. The team actively promotes standardization work, and presided over the formulation of 4 international standards (IEC / TS 62607-6-13; IEC / TS 62607-6-20; 2 PWI projects) and 2 national standards (20160467-T-491; 20100983 -T-49). The team also won the first prize of Shanxi Province Natural Science Award, the first prize of China Industry-University-Research Cooperation Innovation Achievement, and the second prize of China Chemical Engineering Society Technology Invention Award. The above work was jointly funded by more than 10 projects including NSFC Outstanding Youth Fund, General Project and Youth Fund, STS Key Project of Chinese Academy of Sciences, Shanxi Science and Technology Major Project, Taiyuan Science and Technology Bureau Major Project, and Horizontal Projects of Domestic and Foreign Enterprises. Heavy duty Europe industrial caster Europe Industrial Caster Heavy Duty Heavy duty Europe industrial caster Ningbo Mywin Caster Co., Ltd. , https://www.mywin-caster.com
Energy storage carbon materials and devices pilot test platform and results display