Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors

Abstract With the rapid development of wearable electronic devices, the demand for flexible, durable, and high‐performance energy storage systems has increased significantly. Nevertheless, maintaining stable electrochemical performance during stretching while ensuring high stretchability and mechani...

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Main Authors: Jing Han, Bingang Xu, Cuiqin Fang, Juyang Wei, Zihua Li, Xinlong Liu, Yujue Yang, Qian Wang, Junze Zhang
Format: Article
Language:English
Published: Wiley 2025-07-01
Series:Advanced Science
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Online Access:https://doi.org/10.1002/advs.202500835
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author Jing Han
Bingang Xu
Cuiqin Fang
Juyang Wei
Zihua Li
Xinlong Liu
Yujue Yang
Qian Wang
Junze Zhang
author_facet Jing Han
Bingang Xu
Cuiqin Fang
Juyang Wei
Zihua Li
Xinlong Liu
Yujue Yang
Qian Wang
Junze Zhang
author_sort Jing Han
collection DOAJ
description Abstract With the rapid development of wearable electronic devices, the demand for flexible, durable, and high‐performance energy storage systems has increased significantly. Nevertheless, maintaining stable electrochemical performance during stretching while ensuring high stretchability and mechanical stability remains a challenge. Herein, this study proposes a novel type of stretchable supercapacitors made from carbon nanotube (CNT) and styrene‐butadiene‐styrene (SBS) composite scaffolds prepared on pre‐stretched carbon fabrics using the breath figure method. Hydrothermal treatment is then performed to grow NiCo‐LDH at the treated carbon fabrics. This method induces the formation of a hierarchically porous structure under high humidity conditions, controls the hydrothermal growth of NiCo‐LDH in the CNT/SBS composite scaffold, and significantly enhances the electrochemical performance and mechanical stability. The supercapacitor demonstrates remarkable retention of 94% capacitance under 80% tensile strain and sustains a small 8% degradation over 20 000 charge–discharge cycles, achieving a specific capacitance of 4948 mF cm⁻2 at 2 mA cm⁻2. The device has an energy density of 801.6 µWh cm⁻2 (400.6 Wh kg⁻¹) and exhibits excellent performance at a power density of 3.5 mW cm⁻2 (1749.5 W kg⁻¹). These properties make the supercapacitors a potential for next‐generation smart wearables and wearable electronics.
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institution Kabale University
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publishDate 2025-07-01
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spelling doaj-art-8273e2e145d44ba7a22ce1d0c863d7c52025-08-20T03:28:58ZengWileyAdvanced Science2198-38442025-07-011225n/an/a10.1002/advs.202500835Hierarchically Porous Wearable Composites for High‐Performance Stretchable SupercapacitorsJing Han0Bingang Xu1Cuiqin Fang2Juyang Wei3Zihua Li4Xinlong Liu5Yujue Yang6Qian Wang7Junze Zhang8Nanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongNanotechnology CenterSchool of Fashion and TextilesThe Hong Kong Polytechnic UniversityKowloon 999077 Hong KongAbstract With the rapid development of wearable electronic devices, the demand for flexible, durable, and high‐performance energy storage systems has increased significantly. Nevertheless, maintaining stable electrochemical performance during stretching while ensuring high stretchability and mechanical stability remains a challenge. Herein, this study proposes a novel type of stretchable supercapacitors made from carbon nanotube (CNT) and styrene‐butadiene‐styrene (SBS) composite scaffolds prepared on pre‐stretched carbon fabrics using the breath figure method. Hydrothermal treatment is then performed to grow NiCo‐LDH at the treated carbon fabrics. This method induces the formation of a hierarchically porous structure under high humidity conditions, controls the hydrothermal growth of NiCo‐LDH in the CNT/SBS composite scaffold, and significantly enhances the electrochemical performance and mechanical stability. The supercapacitor demonstrates remarkable retention of 94% capacitance under 80% tensile strain and sustains a small 8% degradation over 20 000 charge–discharge cycles, achieving a specific capacitance of 4948 mF cm⁻2 at 2 mA cm⁻2. The device has an energy density of 801.6 µWh cm⁻2 (400.6 Wh kg⁻¹) and exhibits excellent performance at a power density of 3.5 mW cm⁻2 (1749.5 W kg⁻¹). These properties make the supercapacitors a potential for next‐generation smart wearables and wearable electronics.https://doi.org/10.1002/advs.202500835porous microstructurestretchablesupercapacitorwearable composite
spellingShingle Jing Han
Bingang Xu
Cuiqin Fang
Juyang Wei
Zihua Li
Xinlong Liu
Yujue Yang
Qian Wang
Junze Zhang
Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors
Advanced Science
porous microstructure
stretchable
supercapacitor
wearable composite
title Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors
title_full Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors
title_fullStr Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors
title_full_unstemmed Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors
title_short Hierarchically Porous Wearable Composites for High‐Performance Stretchable Supercapacitors
title_sort hierarchically porous wearable composites for high performance stretchable supercapacitors
topic porous microstructure
stretchable
supercapacitor
wearable composite
url https://doi.org/10.1002/advs.202500835
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