【Frontiers in HaiChuan Chemical Technology】New ultra-high-efficiency flexible power generation film materials developed by the Institute of Electronics, Chinese Academy of Sciences

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New ultra-high-efficiency flexible power generation film material developed 2025-06-10 Reporters learned on the 9th from the Institute of Electrical Engineering, Chinese Academy of Sciences, that researchers from this institute and other institutions have made breakthrough progress in the field of flexible power generation for smart wearable devices, successfully developing a new ultra-high-efficiency flexible power generation film material. Thanks to its special structural design, this material achieves the highest power density among all reported silver selenide-based flexible thermoelectric devices of its kind. The relevant research findings were published online in the journal Nature Communications. “In this latest study, we used a chemical solution method to convert silver selenide into fine nanowires, which were then mixed with graphene and deposited on a porous nylon substrate. Following filtration and rapid heat pressing, this material with ultra-high performance was created as a flexible ‘power-generating film’. ”said Ding Fazhu, co-corresponding author of the paper and a researcher at the Institute of Electrical Engineering, Chinese Academy of Sciences. A power generation device in the shape of a three-dimensional \"small arch bridge\" made from this film contains 100 pairs of power generation units. This arch bridge design enables better utilization of the temperature difference between the human body and the environment. The power generation capacity of this miniature “body temperature generator” sets a world record for devices of its kind; the electricity it produces is sufficient to power small devices such as electronic watches and hygrometers. Ding Fazhu said that this research successfully applies thermoelectric conversion technology to flexible power generation devices, providing an efficient and sustainable power supply solution for smart wearable devices; it holds great practical significance for the large-scale application of thermoelectric conversion technology.