Fig. 17

Applications of TENGs for mechanical energy harvesting: a a flexible TENG harvesting small mechanical energy from different parts of the body (Reproduced with permission from Ref. [113]); b schematic diagram of the integrated hybridized NGs on the roof of a house model (Reproduced with permission from Ref. [114]); c TENG for harvesting environmental wind energy (Reproduced with permission from Ref. [115]); d a self-powered backpack on the basis of a TENG with integrated rhombic gridding for harvesting the vibration energy from natural human walking (Reproduced with permission from Ref. [116])