Innovative low-displacement mechanical energy harvesting using piezomagnetic effects.
MnCoSi0.88Ge0.12 exhibits excellent piezomagnetic properties over a broad temperature range.
Prototype device achieves 34.4 μW/cm3 power density with no moving parts.
Effective energy harvesting from small-displacement vibrations and impacts.
Potential for self-powered sensor networks in harsh, unattended environments.
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| Zhang Z., Zhou T., Hu Y., et al. (2025). Small-displacement mechanical energy harvesting through magnetic phase transition materials. The Innovation Energy 2:100098. https://doi.org/10.59717/j.xinn-energy.2025.100098 |
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M-T curves under pressures of 0, 360, and 650 MPa for the MnCoSi0.88Ge0.12 alloy measured at different magnetic fields.
M-H curves under pressures of 0, 360, and 650 MPa for the MnCoSi0.88Ge0.12 alloy measured at different temperatures.
Design of a piezomagnetic power generation device
Functional verification of the piezomagnetic power generation device under varying air gaps, temperatures, and driving pressures
Power generation performance under 100 MPa pressure: time and frequency dependences