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Using “3D-spacer” technology, we have knitted 80% β-phase PVDF with Ag/PA66 fibres to demonstrate all fibre piezoelectric power generators. The 3D structure provides a power density of 1.10–5.10 μW cm−2at applied impacts of 0.02–0.10 MPa.
Soin et al. (Wed,) studied this question.