Stretchable high-capacitance supercapacitors enabled by Soft-Pore-Array engineered Ag@polyurethane current collectors
Jiang X, Wang M, Shang Y, Xu T, Cui J, Forberich K, Zhang C, Meng H (2025)
Publication Type: Journal article
Publication year: 2025
Journal
Book Volume: 523
Article Number: 168489
DOI: 10.1016/j.cej.2025.168489
Abstract
The pursuit of next-generation wearable electronics demands energy storage systems that reconcile extreme deformability with high electrochemical performance, a challenge inadequately addressed by existing intrinsically stretchable or structurally engineered supercapacitors (SCs). Herein, we introduce a Soft-Pore-Array (SP) architecture that synergizes material innovation with hierarchical structural design. A novel class of fluorine-enhanced transparent polyurethanes is engineered to function dually as low-modulus elastic substrates (>2600 % strain tolerance) and interfacial-compliant binders. The SP configuration incorporates stress-adaptive pore arrays that redistribute >83 % strain to the compliant regions while achieving unprecedented electromechanical stability: current collector resistance remains as low as 7 Ω even under 1000 % strain – the lowest reported value to date – coupled with excellent fatigue resistance over 10,000 cycles at 100 % strain. When integrated with the solketal-modified poly(2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt) (S-PAMPS) hydrogel electrolyte, the resulting symmetric MXene-based SP supercapacitors (SP-SCs) demonstrate record-breaking areal specific capacitance, maintaining 1513 mF/cm2 at 50 % strain and retaining 823 mF/cm2 under extreme 150 % strain deformation. Through multimodal strain mitigation mechanisms – including pore-mediated strain localization, triaxial mechanical interlocking, and strain-induced interfacial activation – this work establishes a universal paradigm for creating high-performance stretchable energy devices that transcend conventional performance-stretchability trade-offs.
Involved external institutions
Peking University (PKU) / 北京大学
China (CN)
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Sun Yat-Sen University
China (CN)
China (CN)
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Sun Yat-Sen University
China (CN)
How to cite
APA:
Jiang, X., Wang, M., Shang, Y., Xu, T., Cui, J., Forberich, K.,... Meng, H. (2025). Stretchable high-capacitance supercapacitors enabled by Soft-Pore-Array engineered Ag@polyurethane current collectors. Chemical Engineering Journal, 523. https://doi.org/10.1016/j.cej.2025.168489
MLA:
Jiang, Xin, et al. "Stretchable high-capacitance supercapacitors enabled by Soft-Pore-Array engineered Ag@polyurethane current collectors." Chemical Engineering Journal 523 (2025).
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