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Title: Advanced fiber-shaped aqueous Zn ion battery integrated with strain sensor
Authors: Zhang, Haozhe
Xiong, Ting
Zhou, Tianzhu
Zhang, Xiao
Wang, Yuntian
Zhou, Xuhui
Wei, Lei
Keywords: Engineering::Nanotechnology
Issue Date: 2022
Source: Zhang, H., Xiong, T., Zhou, T., Zhang, X., Wang, Y., Zhou, X. & Wei, L. (2022). Advanced fiber-shaped aqueous Zn ion battery integrated with strain sensor. ACS Applied Materials & Interfaces, 14(36), 41045-41052.
Project: MOE2019-T2-2-127
IAF-ICP I2001E0067
Journal: ACS Applied Materials & Interfaces 
Abstract: Multifunctional batteries have attracted increasing attention, offering additional functionalities beyond the conventional batteries. Herein, we report a fiber-shaped Zn ion battery that not only acts as a high-performance power supply, but also provides sensing function to monitor human motions. Titanium fiber coated with α-MnO2 nanoflowers is exploited as cathode for fiber-shaped Zn ion battery, taking full advantage of such unique three-dimensional nanoflower structures of α-MnO2 with a large electrochemical active surface area and fast electrochemical reaction kinetics. Thus, the obtained fiber-shaped Zn ion battery shows high capacity of 280 mAh g-1 at 0.1 A g-1, resulting in a notable energy density of 396 Wh kg-1, good stability (capacity retention of 80.6% after 300 cycles), and high flexibility. As a demonstration, an electronic watch and five LEDs are successfully driven by two fiber-shaped Zn ion batteries. Furthermore, the fiber-shaped Zn ion battery is integrated with a strain sensor based on the carbon nanotube/polydimethylsiloxane film, offering good sensitivity to monitor motions of different body parts, such as wrist, finger, elbow, and knee. This work provides insights into multifunctional battery applications for the next-generation wearable electronics.
ISSN: 1944-8244
DOI: 10.1021/acsami.2c11638
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © 2022 American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: embargo_20230921
Fulltext Availability: With Fulltext
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