Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications
Abstract Liquid‐free ion‐conductive elastomers with excellent mechanical and electrical conductivity are widely used in flexible sensors, wearable devices, soft touch screens, and supercapacitors. However, the inherent contradiction between mechanical and electrical properties often limits the devel...
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Wiley
2025-07-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202503510 |
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| author | Zequan Li Jingjing Tang Xuwei Wang Fuqi Wang Fangyan Ou Wenyu Pan Changsheng Wang Ting Xie Chuang Ning Xiwei Xu Jiamin Liu Qihua Liang Wei Gao Shuangliang Zhao |
| author_facet | Zequan Li Jingjing Tang Xuwei Wang Fuqi Wang Fangyan Ou Wenyu Pan Changsheng Wang Ting Xie Chuang Ning Xiwei Xu Jiamin Liu Qihua Liang Wei Gao Shuangliang Zhao |
| author_sort | Zequan Li |
| collection | DOAJ |
| description | Abstract Liquid‐free ion‐conductive elastomers with excellent mechanical and electrical conductivity are widely used in flexible sensors, wearable devices, soft touch screens, and supercapacitors. However, the inherent contradiction between mechanical and electrical properties often limits the development of liquid‐free ion‐conductive elastomers. Therefore, the preparation of liquid‐free ion‐conductive elastomers with both high mechanical properties and high ionic conductivity remains a major challenge. In this study, a polyurethane elastomer with multiple crosslinking and a microphase‐separated structures were designed, inspired by the “brick wall” structure of the pearl layer. A polyurethane‐based liquid‐free ion‐conductive elastomer with excellent mechanical strength and outstanding ion‐conducting properties was prepared by introducing lithium bis(trifluoromethane)sulfoximide (LiTFSI) into the polyurethane elastomer. FLICE‐110% liquid‐free ion‐conductive elastomer had excellent mechanical strength (5.46 MPa), exceptional elongation at break (1213%), excellent ionic conductivity (3.29 × 10−4 S cm−1), and excellent fracture energy (6.25 kJ m−2). Flexible sensors prepared based on FLICE‐110% liquid‐free ion‐conductive elastomer have realized applications in wearable devices, multi‐channel strain sensors, and remote‐controlled robots. In addition, we successfully recovered LiTFSI from FLICE‐110% liquid‐free ion‐conductive elastomer. The development of these liquid‐free ion‐conductive elastomers will be expected to show a wide range of applications in flexible sensors, ionic skin, soft robotics, and human‐machine interactions. |
| format | Article |
| id | doaj-art-6af1c3350bc2440f9ea23c48b65bd976 |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-6af1c3350bc2440f9ea23c48b65bd9762025-08-20T03:12:02ZengWileyAdvanced Science2198-38442025-07-011227n/an/a10.1002/advs.202503510Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing ApplicationsZequan Li0Jingjing Tang1Xuwei Wang2Fuqi Wang3Fangyan Ou4Wenyu Pan5Changsheng Wang6Ting Xie7Chuang Ning8Xiwei Xu9Jiamin Liu10Qihua Liang11Wei Gao12Shuangliang Zhao13School of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaSchool of Resources Environment and Materials Guangxi University Nanning 530004 ChinaState Key Laboratory of Featured Metal Materials and Life‐cycle Safety for Composite Structures Guangxi University Nanning 530004 ChinaAbstract Liquid‐free ion‐conductive elastomers with excellent mechanical and electrical conductivity are widely used in flexible sensors, wearable devices, soft touch screens, and supercapacitors. However, the inherent contradiction between mechanical and electrical properties often limits the development of liquid‐free ion‐conductive elastomers. Therefore, the preparation of liquid‐free ion‐conductive elastomers with both high mechanical properties and high ionic conductivity remains a major challenge. In this study, a polyurethane elastomer with multiple crosslinking and a microphase‐separated structures were designed, inspired by the “brick wall” structure of the pearl layer. A polyurethane‐based liquid‐free ion‐conductive elastomer with excellent mechanical strength and outstanding ion‐conducting properties was prepared by introducing lithium bis(trifluoromethane)sulfoximide (LiTFSI) into the polyurethane elastomer. FLICE‐110% liquid‐free ion‐conductive elastomer had excellent mechanical strength (5.46 MPa), exceptional elongation at break (1213%), excellent ionic conductivity (3.29 × 10−4 S cm−1), and excellent fracture energy (6.25 kJ m−2). Flexible sensors prepared based on FLICE‐110% liquid‐free ion‐conductive elastomer have realized applications in wearable devices, multi‐channel strain sensors, and remote‐controlled robots. In addition, we successfully recovered LiTFSI from FLICE‐110% liquid‐free ion‐conductive elastomer. The development of these liquid‐free ion‐conductive elastomers will be expected to show a wide range of applications in flexible sensors, ionic skin, soft robotics, and human‐machine interactions.https://doi.org/10.1002/advs.202503510human‐machine interactionsion‐conductivityliquid‐free ion‐conductive elastomersmechanical strengthrecovery of LiTFSI |
| spellingShingle | Zequan Li Jingjing Tang Xuwei Wang Fuqi Wang Fangyan Ou Wenyu Pan Changsheng Wang Ting Xie Chuang Ning Xiwei Xu Jiamin Liu Qihua Liang Wei Gao Shuangliang Zhao Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications Advanced Science human‐machine interactions ion‐conductivity liquid‐free ion‐conductive elastomers mechanical strength recovery of LiTFSI |
| title | Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications |
| title_full | Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications |
| title_fullStr | Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications |
| title_full_unstemmed | Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications |
| title_short | Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications |
| title_sort | bioinspired liquid free ion conductive elastomers with ultrahigh mechanical strength and excellent ionic conductivity for multifunctional flexible sensing applications |
| topic | human‐machine interactions ion‐conductivity liquid‐free ion‐conductive elastomers mechanical strength recovery of LiTFSI |
| url | https://doi.org/10.1002/advs.202503510 |
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