An ultraflexible energy harvesting-storage system for wearable applications

Sakeena Saifi, Xiao Xiao, Simin Cheng, Haotian Guo, Jinsheng Zhang, Peter Müller-Buschbaum, Guangmin Zhou, Xiaomin Xu, Hui Ming Cheng

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The swift progress in wearable technology has accentuated the need for flexible power systems. Such systems are anticipated to exhibit high efficiency, robust durability, consistent power output, and the potential for effortless integration. Integrating ultraflexible energy harvesters and energy storage devices to form an autonomous, efficient, and mechanically compliant power system remains a significant challenge. In this work, we report a 90 µm-thick energy harvesting and storage system (FEHSS) consisting of high-performance organic photovoltaics and zinc-ion batteries within an ultraflexible configuration. With a power conversion efficiency surpassing 16%, power output exceeding 10 mW cm–2, and an energy density beyond 5.82 mWh cm–2, the FEHSS can be tailored to meet the power demands of wearable sensors and gadgets. Without cumbersome and rigid components, FEHSS shows immense potential as a versatile power source to advance wearable electronics and contribute toward a sustainable future.

Original languageEnglish
Article number6546
JournalNature Communications
Volume15
Issue number1
DOIs
StatePublished - Dec 2024

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