Engineering and Technology

Moisture-enabled self-charging and voltage stabilizing supercapacitor

L. Wang, H. Wang, et al.

This paper presents a groundbreaking moisture-powered supercapacitor that utilizes atmospheric moisture for self-charging and voltage stabilization. Developed by Lifeng Wang, Haiyan Wang, Chunxiao Wu, Jiaxin Bai, Tiancheng He, Yan Li, Huhu Cheng, and Liangti Qu, this innovative device showcases impressive energy storage capabilities, making it ideal for various electronic applications.

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Abstract

This paper introduces a flexible moisture-powered supercapacitor (mp-SC) capable of self-charging and voltage stabilization using atmospheric moisture. The mp-SC integrates a polyelectrolyte-based moist-electric generator (MEG) and a graphene electrochemical capacitor (EC). The device demonstrates a self-charged high areal capacitance of 138.3 mF cm² and maintains 96.6% voltage for 120 hours. A large-scale device (72 mp-SC units) achieves a self-charged 60 V, powering various commercial electronics.

Publisher

Nature Communications

Published On

Jun 10, 2024

Authors

Lifeng Wang, Haiyan Wang, Chunxiao Wu, Jiaxin Bai, Tiancheng He, Yan Li, Huhu Cheng, Liangti Qu

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