Ju-Hyuck Lee*이주혁*
Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST)대구경북과학기술원 에너지공학전공
Currently, hybridization of energy generator and storage devices is considered to be
one of the most important energy-related technologies due to the possibility of replacing batteries
or extending the lifetime of a batteries in accordance with increasing battery demand.
This review aims to describe current progress on the mechanical energy generator and hybridization
of energy generator and energy storage devices for self-powered electronics. First, the
research trends related to energy generation devices using piezoelectric and triboelectric effect
that convert physical energy into electric energy is introduced. In addition, integration of energy
generators and energy storage devices is introduced. In particular, self-charging energy cells provide
an innovative approach to the direct conversion of mechanical energy into electrochemical
energy to decrease energy conversion loss.
Keyword : Piezoelectric, Triboelectric, Energy generator, Hybrid energy generator and storage