journal article·2024-12

Fully Stretchable Microbial Fuel Cell with 75% Stretchability

Shizhe Peng, Jia Li, Yihan Hu, Jinwei Cao, Ming Zhou, Lu Lu, Yude Su

Small· Volume 20· Issue 52
Publisher page

Abstract

Abstract A decent stretchability is of paramount significance to operate microbial fuel cell (MFC) under mechanically dynamic conditions. However, it remains a grand challenge to fabricate fully stretchable MFC without compromising its power output. Here, using Shewanella oneidensis MR‐1 (S. oneidensis) as the model electrogenic bacteria, the study demonstrates a fully stretchable MFC device that can operate with a stretchability of 75%. The design takes advantage of a stretchable and ion‐conductive polyurethane membrane, which encapsulates the biohybrids composed of S. oneidensis and reduced graphene oxide (rGO) on the polydimethylsiloxane (PDMS) current collector for synchronous stretching. It is discovered that the “stretchable” living biohybrids can sustain an adaptive bio‐current output under stretching/releasing stimulation. The design also employs a stretchable air cathode. The stabilized peak power density of the stretchable MFC follows an increasing trend with the applied strain, and reaches 5.0 ± 0.7, 5.9 ± 0.9, 6.2 ± 1.1, 6.6 ± 1.4 µW cm−2 at strains of 0%, 25%, 50%, and 75%, respectively (n = 3). At 75% strain, the stretchable MFC yields a maximum current output of 104 ± 27 µA cm−2 and an open‐circuit voltage of 283 ± 30 mV (n = 3). The results provide insights to design stretchable MFCs to power the next‐generation on‐skin devices, soft robotics, and sustainable electronics.
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Research context

OpenAlex topics: Microbial Fuel Cells and Bioremediation · Supercapacitor Materials and Fabrication · Electrochemical sensors and biosensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Nano Science and Technology Suzhou Institute for Advanced Research University of Science and Technology of China Suzhou Jiangsu 215123 China

School of Chemistry and Materials Science University of Science and Technology of China Hefei Anhui 230026 China

CAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences 1219 West Zhongguan Road Ningbo 315201 China

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nano‐biosensing and Nano‐bioanalysis at Universities of Jilin Province Analysis and Testing Center Department of Chemistry Northeast Normal University Changchun Jilin 130024 China

State Key Laboratory of Urban Water Resource and Environment School of Civil and Environmental Engineering Harbin Institute of Technology Shenzhen Guangdong 518055 China

Key Laboratory of Precision and Intelligent Chemistry University of Science and Technology of China Hefei Anhui 230026 China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China

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