| CPC H02N 1/04 (2013.01) [B62J 1/28 (2013.01); B62J 45/00 (2020.02)] | 15 Claims | 

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               1. A triboelectric nanogenerating device, configured for providing an electric power to an electronic device, the triboelectric nanogenerating device comprising: 
            at least one scaly triboelectric membrane configured for providing the electric power to the electronic device by frictional electrification, wherein the at least one scaly triboelectric membrane comprises a keratin and a polyvinyl alcohol, the at least one scaly triboelectric membrane has a first triboelectric surface, and the first triboelectric surface of the at least one scaly triboelectric membrane comprises: 
              a plurality of scaly layers, each of the scaly layers arranged in order and extending along an orienting direction, wherein a distal end of each of the scaly layers has a plurality of saw-tooth structures. 
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