Recently, the team of Wu Zhongshuai, a researcher of the two-dimensional material and energy device research group of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, teamed up with the academician Bao Xinhe of the Chinese Academy of Sciences, and the team of Cheng Huiming and Ren Wencai of the Institute of Metal Research of the Chinese Academy of Sciences. A highly integrated, flexible, high-voltage output graphene-based planar miniature supercapacitor, related results were published in "Energy Environ. Sci." The rapid development of miniaturized and flexible electronic devices has led to an increasing demand for matching miniature energy storage devices. However, the output voltage and current of a single miniature energy storage device are limited, and it is difficult to meet the application requirements of electronic devices that require high voltage and large current drive. In practice, it is usually necessary to integrate multiple energy storage devices in series and / or parallel to integrate Increase the voltage and / or current. At present, integrated energy storage devices generally require the use of metal connectors, resulting in device integrity, poor mechanical flexibility, complicated processing, and difficult to customize performance. Therefore, there is an urgent need to develop new large-scale technologies to mass-produce highly integrated and customizable miniature energy storage devices. In this work, the researchers first developed a graphene conductive ink with excellent rheology and electrochemical properties, and then used the screen printing method to realize the integration of planar and integrated miniature supercapacitors using a one-step method. The preparation of the fluid, the patterned microelectrode and the conductive connection between the devices greatly simplifies the manufacturing process and significantly improves the integrity and mechanical flexibility of the integrated device. According to different practical application requirements, researchers can not only effectively control the shape and size of integrated micro supercapacitors, but also realize the serial-parallel integration of any number of planar micro supercapacitors, and then effectively customize the output voltage (several volts to hundreds Volts) and current (nanoampere to milliampere). For example, the output voltage of a micro supercapacitor module obtained by connecting 130 single devices in series can reach more than 100V. This work proves that graphene conductive ink can be used as a current collector, a conductive connector, and a high-capacity electrode material at the same time. Screen printing technology can efficiently and scale-produce a highly integrated, integrated, high-voltage output planar micro super The capacitor and the obtained modular device have the characteristics of excellent yield, consistent performance, high voltage output and so on, and have broad application prospects. The above work was supported by the National Natural Science Foundation of China, the National Key R & D Program, and the Research and Innovation Fund of the Dalian Institute of Chemical Research. There are three types of Dip switch led batten lights, Change CCT Light, Change Power Light, and Change CCT and Power light. Shop Led Light Fixtures,Workshop Led Light,Shop Light Fittings SHENZHEN LITEHOME OPTOELECTRONIC TECHNOLOGY CO., LTD. , https://www.szlitehomelight.com
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