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Reclaiming kinetic energy from vibrating machines holds great promise for sustainable energy harvesting technologies. Nevertheless, the impulsive current induced by vibrations is incompatible with conventional energy storage devices. The energy‐management system necessitates novel designs of soft materials for lightweight, miniaturized, and integrated high‐frequency electrochemical devices. Here,...
Unique all‐graphene core–sheath fibers composed of a graphene fiber core with a sheath of 3D graphene network have been developed. Used as flexible electrodes, all‐solid‐state fiber supercapacitors have been fabricated, which can be managed to highly compressible and stretchable spring supercapacitors and can also be woven into a textile for wearable electronics.
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