Innovative energy harvesting for portable systems
Batteries are undesirable in many applications – whether because they are difficult to access, require regular replacement, or because alternative energy sources such as photovoltaics are unavailable or unsuitable. This is precisely where our solutions come in.
Our energy harvesting concepts are based on piezoelectric foils and enable the harvesting of electrical energy from low-frequency mechanical vibrations – ideal for wearable devices and IoT applications.
The problem: Frequency dependence of energy yield
Conventional piezoelectric harvesters operate most efficiently near their resonant frequency – however, this is usually above 1000 Hz and is therefore unsuitable for the typical low-frequency movements in wearable applications.
Our solution: decoupling of excitation and resonance
Our innovative concepts decouple the excitation frequency from the resonance frequency. This allows our systems to be efficiently excited even at very low frequencies – and with significantly higher energy yield than conventional approaches.
Scalability for a wide range of applications
Our energy harvesting solutions are scalable—both in their physical dimensions and the amount of energy generated. This makes them suitable for a wide range of applications, from compact wearables to larger industrial systems, such as weather observation or underwater sensing.