Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors
Abstract 3D porous carbon electrodes have attracted significant attention for advancing compressible supercapacitors (SCs) in flexible electronics. The micro‐ and nanoscale architecture critically influences the mechanical and electrochemical performance of these electrodes. However, achieving a bal...
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Wiley
2025-03-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202410397 |
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| author | Song Wei Caichao Wan Xingong Li Shanshan Jia Ruwei Chen Guanjie He Yiqiang Wu |
| author_facet | Song Wei Caichao Wan Xingong Li Shanshan Jia Ruwei Chen Guanjie He Yiqiang Wu |
| author_sort | Song Wei |
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| description | Abstract 3D porous carbon electrodes have attracted significant attention for advancing compressible supercapacitors (SCs) in flexible electronics. The micro‐ and nanoscale architecture critically influences the mechanical and electrochemical performance of these electrodes. However, achieving a balance between high compressive strength, electrochemical stability, and cost‐effective sustainable production remains challenging. Here, a superelastic wood nanocarbon sponge (WNCS) with a wrinkled multilayer structure is developed via a facile “top–down” design on natural wood. These unique wrinkled nanolayers effectively alleviate stress concentration through elastic deformation, resulting in a high compressive strength of 580.6 kPa at 70% reversible strain. The significantly increased specific surface area, coupled with abundant micro‐mesopores and highly graphitized nanocarbon, promotes rapid ion/electron transport, enabling the WNCS to achieve an ultrahigh capacitance of 4.21 F cm−2 at 1 mA cm−2, along with excellent cyclic stability and rate capability. Furthermore, an asymmetric supercapacitor (ASC) using a WNCS anode and a NiCo‐layered double hydroxide cathode retains 71.8% of its initial capacitance after 1000 compression cycles and withstands stress up to 1.03 MPa without capacitance degradation. This sustainable, cost‐effective WNCS shows great promise for flexible, compressible, and wearable electrochemical energy systems. |
| format | Article |
| id | doaj-art-49aab874524046e5962579d1ca7b2954 |
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| language | English |
| publishDate | 2025-03-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj-art-49aab874524046e5962579d1ca7b29542025-08-20T02:24:47ZengWileyAdvanced Science2198-38442025-03-011211n/an/a10.1002/advs.202410397Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible SupercapacitorsSong Wei0Caichao Wan1Xingong Li2Shanshan Jia3Ruwei Chen4Guanjie He5Yiqiang Wu6College of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 ChinaCollege of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 ChinaCollege of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 ChinaCollege of Forestry Sichuan Agricultural University Chengdu 611130 P. R. ChinaChristopher Ingold Laboratory Department of Chemistry University College London London WC1H0A UKChristopher Ingold Laboratory Department of Chemistry University College London London WC1H0A UKCollege of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004 ChinaAbstract 3D porous carbon electrodes have attracted significant attention for advancing compressible supercapacitors (SCs) in flexible electronics. The micro‐ and nanoscale architecture critically influences the mechanical and electrochemical performance of these electrodes. However, achieving a balance between high compressive strength, electrochemical stability, and cost‐effective sustainable production remains challenging. Here, a superelastic wood nanocarbon sponge (WNCS) with a wrinkled multilayer structure is developed via a facile “top–down” design on natural wood. These unique wrinkled nanolayers effectively alleviate stress concentration through elastic deformation, resulting in a high compressive strength of 580.6 kPa at 70% reversible strain. The significantly increased specific surface area, coupled with abundant micro‐mesopores and highly graphitized nanocarbon, promotes rapid ion/electron transport, enabling the WNCS to achieve an ultrahigh capacitance of 4.21 F cm−2 at 1 mA cm−2, along with excellent cyclic stability and rate capability. Furthermore, an asymmetric supercapacitor (ASC) using a WNCS anode and a NiCo‐layered double hydroxide cathode retains 71.8% of its initial capacitance after 1000 compression cycles and withstands stress up to 1.03 MPa without capacitance degradation. This sustainable, cost‐effective WNCS shows great promise for flexible, compressible, and wearable electrochemical energy systems.https://doi.org/10.1002/advs.202410397compressible supercapacitorhigh areal capacitancehigh compressive strengthwood nanocarbon spongewrinkled multilayer structure |
| spellingShingle | Song Wei Caichao Wan Xingong Li Shanshan Jia Ruwei Chen Guanjie He Yiqiang Wu Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors Advanced Science compressible supercapacitor high areal capacitance high compressive strength wood nanocarbon sponge wrinkled multilayer structure |
| title | Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors |
| title_full | Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors |
| title_fullStr | Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors |
| title_full_unstemmed | Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors |
| title_short | Top–Down Strategy Enabling Elastic Wood Nanocarbon Sponges with Wrinkled Multilayer Structure and High Compressive Strength for High‐Performance Compressible Supercapacitors |
| title_sort | top down strategy enabling elastic wood nanocarbon sponges with wrinkled multilayer structure and high compressive strength for high performance compressible supercapacitors |
| topic | compressible supercapacitor high areal capacitance high compressive strength wood nanocarbon sponge wrinkled multilayer structure |
| url | https://doi.org/10.1002/advs.202410397 |
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