Non-resonant Electromagnetic Vibration Energy Harvester with Magnetic Gear for Wearable Technology

NSF Award Search · 01002526DB NSF RESEARCH & RELATED ACTIVIT · $400,000 · view on nsf.gov ↗

Abstract

Abstract Title: Non-resonant Electromagnetic Vibration Energy Harvester with Magnetic Gear for Wearable Technology Abstract: The proposed research is to efficiently generate power from vibration energy associated with humans’ daily activities, such as walking. As the internet of things (IoT) is boldly predicted to connect trillion sensors, and now that smartphones and wearable devices (for fitness or health tracking) are getting ubiquitous, two key issues are how to power the devices and how to keep the devices working constantly and continuously without battery recharging or replacement. Battery recharging or replacement means down-time and human intervention. One approach to avoid frequent battery replacement or recharging is to use a battery with large energy capacity at the cost of large weight and volume, which makes wearable devices heavy and bulky. Indeed, current wearables are critically limited by battery capacity. Human motions offer ubiquitous vibration energy, which the proposed research will tap into to generate electrical power without loading or restricting the person, so that the power requirement of wearables may be substantially aided by a small and light vibration energy harvester (VEH). The proposed research will pave the foundational technology for generating power from human motion without loading the human who carries the power-generating device. The successful outcome of the research will ultimately mean a power-generating device smaller and lighte

Key facts

NSF award ID
2509478
Awardee
University of Southern California (CA)
SAM.gov UEI
G88KLJR3KYT5
PI
Eun S Kim
Primary program
01002526DB NSF RESEARCH & RELATED ACTIVIT
All programs
Novel devices & vacuum electronics
Estimated total
$400,000
Funds obligated
$400,000
Transaction type
Standard Grant
Period
10/01/2025 → 09/30/2028