resumo
This allows prediction of the time evolution of the multiple DOFs, as well as electrical outputs from predetermined initial conditions and input forces/torques or prescribed trajectories. Power densities up to 5.44 mW/ cm3 (5.44 kW/m3) and efficiencies up to 48.5% were experimentally found in the literature. Nevertheless, no relationship has been widely explored yet between the increasing power density and the increasing sensitivity of the generators to mechanical excitations with a wide range of DOFs. Even though significant advances have already achieved in this field, our findings highlight that future research must focus on developing sophisticated generators with the ability to effectively couple all translational and rotational DOFs from both kinetic and potential energy, ensuring the minimization of coil Ohmic losses and maximization of the electromechanical coupling coefficient, and thus energy conversion efficiency, for multi-DOF excitations and loads.
palavras-chave
TRIBOELECTRIC NANOGENERATOR; POWER; DYNAMICS; COST
categoria
Energy & Fuels; Engineering
autores
Rolo, P; Vidal, JV; Kholkin, AL; Alves, LN; dos Santos, MPS
nossos autores
Andrei Kholkin
Investigador Jubilado
João Vasco Silvestre Vidal
Investigador Júnior
Pedro Miguel Lopes Rolo
Estudante de doutoramentoGrupos
G2 - Materiais Fotónicos, Eletrónicos e Magnéticos
G6 - Materiais Virtuais e Inteligência Artificial
agradecimentos
This work was supported by the Portuguese Foundation for Science and Technology (FCT) (PhD grant references: 2022.13142.BD; project references: UIDB/00481/2020 and UIDP/00481/2020; DOI 10.54499/UIDB/00481/2020, https://doi.org/10.54499/UIDB/00481/2020. and DOI 10.54499/UIDP/00481/2020, https://doi.org/10.54499/UIDP/004 81/2020) . A.K. acknowledges the project "FeLow-D" funded under the Horizon Europe program HORIZON-WIDERA-2023-TALENTS-01, GA nr.101186499.