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Thermoelectric generator powered timepiece circuit for rechargeable battery operation
Sam Methuselah Penumala1, A Karmel2, G Kanimozhi3
1School of Computer Science and Engineering, Vellore Institute of Technology, Chennai, Tamilnadu, 600127, India.
Scientific Reports
|April 15, 2024
Summary
This study introduces an innovative digital watch powered by a thermoelectric generator (TEG) that recharges a lithium-polymer battery using body heat. This eco-friendly design eliminates battery waste and frequent replacements for reliable timekeeping.
Area of Science:
- Materials Science
- Energy Harvesting
- Wearable Technology
Background:
- Digital watches rely on batteries, leading to frequent replacements and environmental waste.
- Existing battery technologies pose limitations in terms of longevity and sustainability.
Purpose of the Study:
- To develop an innovative, eco-friendly digital watch solution.
- To eliminate the need for conventional battery charging and replacement in digital watches.
Main Methods:
- Integration of a thermoelectric generator (TEG1-19913) into a watch strap for continuous skin contact.
- Utilizing the voltage generated by the TEG (11.5-14.5 W) to recharge a high-performance lithium-polymer battery.
- Designing a compact and lightweight watch with an energy-efficient display.
Main Results:
- The thermoelectric generator effectively generates power from body heat.
- The lithium-polymer battery is successfully recharged by the TEG, negating the need for external charging.
- The watch demonstrates a sustainable and convenient timekeeping solution.
Conclusions:
- The proposed digital watch offers an innovative and ecological alternative to traditional battery-powered watches.
- The integration of TEG technology provides a self-sustaining power source for wearable devices.
- This design addresses battery waste and enhances user convenience through reliable, on-demand charging.
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