Chinese scientists have developed hybrid nanogenerators capable of converting the energy of ocean waves with an efficiency of up to 117%. These systems combine triboelectric (TENG), electromagnetic (EMG), and piezoelectric (PENG) technologies, allowing them to capture the full spectrum of water oscillations and maximize the use of marine energy.
The devices feature spherical, dodecahedral, and tensegrity-based structures, providing six degrees of freedom in movement and eliminating orientation “blind spots.” Their volumetric power density has reached 600 W/m²—three orders of magnitude higher than previous models. Special attention has been given to the durability and stability of contacts under moisture and pressure, while integration with solar cells ensures operation even during storms or low-light conditions.
According to the authors of the study published in Nano-Micro Letters, these generators could become a new source of clean energy, transforming the approach to harnessing “blue” energy.
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