Electrochromic (EC) fabrics exhibiting tunable optical and thermal modulation have attracted extensive attention in both active camouflage and wearable electronic. However, the lack of compatibility among the basic components of an EC device for flexible EC fabrics remains a challenge, hindering its future application. Herein, a highly integrated all-in-one EC fabric (AECF) is developed by assembling all the essential components into a piece of fabric, which is based on the dual-band EC polyaniline (PANI), Au collector, and a gel electrolyte filled into the fabric matrix. Benefiting from such a highly integrated configuration, the AECF possesses an ultrathin thickness of 82.0 μm and high flexibility, which could endow it with good conformity on arbitrarily shaped surfaces, further enhancing the applicability of the intrinsically non-stretchable EC fabrics device. Stemming from the optical modulation of the PANI EC layers, the AECF exhibits a color switch between golden yellow and dark green, with both visible and infrared reflectance modulation. Considering the excellent conformability and active optical-thermal modulation, the AECF is further developed into an environmental adaptive camouflage prototype system by integrating with a model car, which exhibits a fast color blending with dynamic environment background. This study is anticipated to provide new insights into developing high-performance EC fabrics toward the applications in wearable displays and active military camouflage.
| [1] |
H. Gong, J. Ai, W. Li, et al., “Self-Driven Infrared Electrochromic Device With Tunable Optical and Thermal Management,” ACS Applied Materials & Interfaces 13 (2021): 50319–50328.
|
| [2] |
M. Sheng, J. Li, X. Jiang, et al., “Biomimetic Solid–Liquid Transition Structural Dye-Doped Liquid Crystal/Phase-Change-Material Microcapsules Designed for Wearable Bistable Electrochromic Fabric,” ACS Applied Materials & Interfaces 13 (2021): 33282–33290.
|
| [3] |
W. Li, T. Bai, Q. Zhang, J. Liu, K. Zhou, and H. Wang, “A Highly Transparent Ion Conducting Film Enabling a Visual Electrochromic Battery,” Journal of Materials Chemistry C 11 (2023): 7740–7749.
|
| [4] |
H. Gong, W. Li, G. Fu, et al., “Recent Progress and Advances in Electrochromic Devices Exhibiting Infrared Modulation,” Journal of Materials Chemistry A 10 (2022): 6269–6290.
|
| [5] |
T. Bai, W. Li, G. Fu, et al., “Dual-Band Electrochromic Optical Modulation Improved by a Precise Control of Lithium Content in Li4+xTi5O12,” ACS Applied Materials & Interfaces 14 (2022): 52193–52203.
|
| [6] |
M. A. Invernale, Y. Ding, and G. A. Sotzing, “All-Organic Electrochromic Spandex,” ACS Applied Materials & Interfaces 2 (2010): 296–300.
|
| [7] |
W. Li, T. Bai, G. Fu, et al., “Progress and Challenges in Flexible Electrochromic Devices,” Solar Energy Materials and Solar Cells 240 (2022): 111709.
|
| [8] |
G. Fu, H. Gong, T. Bai, Q. Zhang, and H. Wang, “Progress and Challenges in Wearable Electrochromic Devices: A Review,” Journal of Materials Science: Materials in Electronics 34 (2023): 1316.
|
| [9] |
M. Li, W. Jiang, Y. Lin, et al., “Preparation of WO3-based Flexible Electrochromic Fabrics and Their Near Infrared Shielding Application,” Journal of Materials Chemistry C 12 (2024): 5420–5430.
|
| [10] |
H. Zhang, Y. Liu, S. Tang, X. Weng, Y. Xiang, and C. Jia, “Multi-Spectrum Compatible Electrochromic Device Combining Microwave Transmission With Ultra-Wide Emissivity Modulation,” Chemical Engineering Journal 498 (2024): 155419.
|
| [11] |
H. Lv, Z. Wei, C. Han, et al., “Cross-Linked Polyaniline for Production of Long Lifespan Aqueous Iron||Organic Batteries With Electrochromic Properties,” Nature Communications 14 (2023): 3117.
|
| [12] |
G. Fu, H. Gong, J. Xu, et al., “Highly Integrated All-in-One Electrochromic Fabrics for Unmanned Environmental Adaptive Camouflage,” Journal of Materials Chemistry A 12 (2024): 6351–6358.
|
| [13] |
S. Guo, Y. Zhang, and S. C. Tan, “Device Design and Optimization of Sorption-Based Atmospheric Water Harvesters,” Device 1 (2023): 100099.
|
| [14] |
S. Guo, S. Zhang, H. Li, et al., “Precisely Manipulating Polymer Chain Interactions for Multifunctional Hydrogels,” Matter 8 (2025): 101785.
|
| [15] |
D. Liu, G. Xu, S. Song, et al., “Fiber-Shaped Dynamic Thermal Radiation-Regulated Device Based on Carbon Fiber and Polyaniline,” Solar Energy Materials and Solar Cells 245 (2022): 111855.
|
| [16] |
G. Xu, L. Zhang, B. Wang, et al., “A Visible-to-Infrared Broadband Flexible Electrochromic Device Based Polyaniline for Simultaneously Variable Optical and Thermal Management,” Solar Energy Materials and Solar Cells 208 (2020): 110356.
|
| [17] |
T. Qin, L. Deng, P. Zhang, et al., “Enhancement of Electrochromic Properties of Polyaniline Induced by Copper Ions,” Nanoscale Research Letters 17 (2022): 51.
|
| [18] |
S. S. Sekhon, Deepa, and S. A. Agnihotry, “Solvent Effect on Gel Electrolytes Containing Lithium Salts,” Solid State Ionics 136–137 (2000): 1189–1192.
|
| [19] |
Z. Tong, T. Kang, Y. Wan, et al., “A Ca-Ion Electrochromic Battery via a Water-in-Salt Electrolyte,” Advanced Functional Materials 31 (2021): 2104639.
|
| [20] |
H. Gong, A. Li, G. Fu, et al., “Ultrathin Flexible Electrochromic Devices Enabled by Highly Transparent Ion-Conducting Films,” Journal of Materials Chemistry A 11 (2024): 8939–8949.
|
| [21] |
L. Zhang, B. Wang, X. Li, et al., “Further Understanding of the Mechanisms of Electrochromic Devices With Variable Infrared Emissivity Based on Polyaniline Conducting Polymers,” Journal of Materials Chemistry C 7 (2019): 9878–9891.
|
| [22] |
A. Teissier, J.-P. Dudon, P.-H. Aubert, et al., “Feasibility of Conducting Semi-IPN With Variable Electro-Emissivity: A Promising way for Spacecraft Thermal Control,” Solar Energy Materials and Solar Cells 99 (2012): 116–122.
|
| [23] |
H. Fu, S. Yan, T. Yang, et al., “New Dual Conjugated Polymer Electrochromic Device With Remarkable Yellow-to-Green Switch for Adaptive Camouflage,” Chemical Engineering Journal 438 (2022): 135455.
|
| [24] |
W. Humphrey, A. Dalke, and K. Schulten, “VMD: Visual Molecular Dynamics,” Journal of Molecular Graphics 14 (1996): 33–38.
|
| [25] |
T. Lu and F. Chen, “Multiwfn: A Multifunctional Wavefunction Analyzer,” Journal of Computational Chemistry 33 (2012): 580–592.
|
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2025 The Author(s). Carbon Neutralization published by Wenzhou University and John Wiley & Sons Australia, Ltd.
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