Ionogel-based, highly stretchable, transparent, durable triboelectric nanogenerators for energy harvesting and motion sensing over a wide temperature range

Abstract Hydrogel-based triboelectric nanogenerators (H-TENGs) have shown great promise in wearable electronics as soft, stretchable and sustainable power sources. However, H-TENGs can only be used in a narrow temperature range for a short duration due to freezing and evaporation of water. Here, an ionogel-based triboelectric nanogenerator (I-TENG) is designed to significantly broaden the application temperature range and duration while retaining all the superior properties of H-TENGs. The ionogel network constructed by dipole-dipole and ion-dipole interactions exhibits high stretchability (~800%) and ionic conductivity (1.1 mS cm−1). The corresponding I-TENG retains high stretchability (>400%), transparency (>90%), and anti-fatigue resistance (resisting 1000 cycles of 100% stretching) with stable electrical performance for 1 month. The I-TENG shows an instantaneous peak power density of 1.3 W m−2 and efficiently harvests biomechanical energy to drive an electronic watch. Additionally, the I-TENG serves as a self-powered human motion sensor to inspect the bending angle of an elbow. More importantly, the I-TENG retains high stretchability and electrical performance over a wide temperature range from −20 to 100 °C. This work provides a new strategy to design and tailor TENGs that will be very useful for diverse applications, including wearable electronics, electronic skin, and artificial intelligence.

[1]  Mitchell T. Ong,et al.  Force-induced activation of covalent bonds in mechanoresponsive polymeric materials , 2009, Nature.

[2]  Jianhua Hao,et al.  Environmentally Friendly Hydrogel‐Based Triboelectric Nanogenerators for Versatile Energy Harvesting and Self‐Powered Sensors , 2017 .

[3]  Pooi See Lee,et al.  Deformable and Transparent Ionic and Electronic Conductors for Soft Energy Devices , 2017 .

[4]  Yang Zou,et al.  Biodegradable triboelectric nanogenerator as a life-time designed implantable power source , 2016, Science Advances.

[5]  Lijie Sun,et al.  A Single Integrated 3D‐Printing Process Customizes Elastic and Sustainable Triboelectric Nanogenerators for Wearable Electronics , 2018, Advanced Functional Materials.

[6]  C. Chen,et al.  A Wrinkled PEDOT:PSS Film Based Stretchable and Transparent Triboelectric Nanogenerator for Wearable Energy Harvesters and Active Motion Sensors , 2018, Advanced Functional Materials.

[7]  T. Aida,et al.  Thermoresponsive actuation enabled by permittivity switching in an electrostatically anisotropic hydrogel. , 2015, Nature materials.

[8]  Zhigang Suo,et al.  Ionic skin , 2014, Advanced materials.

[9]  Mengmeng Liu,et al.  Triboelectric-Nanogenerator-Based Soft Energy-Harvesting Skin Enabled by Toughly Bonded Elastomer/Hydrogel Hybrids. , 2018, ACS nano.

[10]  Zhenan Bao,et al.  Skin-Inspired Electronics: An Emerging Paradigm. , 2018, Accounts of chemical research.

[11]  Lei Zhang,et al.  A review of electrolyte materials and compositions for electrochemical supercapacitors. , 2015, Chemical Society reviews.

[12]  Lei Wei,et al.  Advanced Multimaterial Electronic and Optoelectronic Fibers and Textiles , 2018, Advanced materials.

[13]  Tao Jiang,et al.  Three-dimensional ultraflexible triboelectric nanogenerator made by 3D printing , 2017, Nano Energy.

[14]  Nae-Eung Lee,et al.  Transparent Stretchable Self-Powered Patchable Sensor Platform with Ultrasensitive Recognition of Human Activities. , 2015, ACS nano.

[15]  Zhigang Suo,et al.  Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt , 2014 .

[16]  Jeong-Yun Sun,et al.  Highly stretchable, transparent ionic touch panel , 2016, Science.

[17]  Jianyong Ouyang,et al.  Soft Electronically Functional Polymeric Composite Materials for a Flexible and Stretchable Digital Future , 2018, Advanced materials.

[18]  Zhong Lin Wang,et al.  Flexible triboelectric generator , 2012 .

[19]  Zhenan Bao,et al.  A stretchable and biodegradable strain and pressure sensor for orthopaedic application , 2018 .

[20]  Tao Chen,et al.  Ultrastretchable and superior healable supercapacitors based on a double cross-linked hydrogel electrolyte , 2019, Nature Communications.

[21]  Zhong Lin Wang,et al.  Progress in triboelectric nanogenerators as a new energy technology and self-powered sensors , 2015 .

[22]  Zhigang Suo,et al.  Highly Stretchable and Tough Hydrogels below Water Freezing Temperature , 2018, Advanced materials.

[23]  Lei Zhang,et al.  Stretchable Porous Carbon Nanotube‐Elastomer Hybrid Nanocomposite for Harvesting Mechanical Energy , 2017, Advanced materials.

[24]  Mingjie Liu,et al.  Low Temperature Tolerant Organohydrogel Electrolytes for Flexible Solid‐State Supercapacitors , 2018, Advanced Energy Materials.

[25]  M. Antonietti,et al.  Poly(ionic liquid)s: An update , 2013 .

[26]  Kaushik Parida,et al.  Highly Transparent, Stretchable, and Self‐Healing Ionic‐Skin Triboelectric Nanogenerators for Energy Harvesting and Touch Applications , 2017, Advanced materials.

[27]  Lie Chen,et al.  Anti-freezing, Conductive Self-healing Organohydrogels with Stable Strain-Sensitivity at Subzero Temperatures. , 2017, Angewandte Chemie.

[28]  Mengmeng Liu,et al.  Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for biomechanical energy harvesting and tactile sensing , 2017, Science Advances.

[29]  Zhongqiu Wang,et al.  Natural Leaf Made Triboelectric Nanogenerator for Harvesting Environmental Mechanical Energy , 2018 .

[30]  J. Brugger,et al.  All-in-one self-powered flexible microsystems based on triboelectric nanogenerators , 2018 .

[31]  Zhong Lin Wang.  Triboelectric nanogenerators as new energy technology for self-powered systems and as active mechanical and chemical sensors. , 2013, ACS nano.

[32]  M. Panzer,et al.  Zwitterion-Containing Ionogel Electrolytes , 2016 .

[33]  Z. Suo,et al.  Hydrogel ionotronics , 2018, Nature Reviews Materials.

[34]  Yu Song,et al.  An ultrathin stretchable triboelectric nanogenerator with coplanar electrode for energy harvesting and gesture sensing , 2017 .

[35]  Xiaodi Zhang,et al.  Transparent and stretchable triboelectric nanogenerator for self-powered tactile sensing , 2019, Nano Energy.

[36]  Dukhyun Choi,et al.  Transparent and attachable ionic communicators based on self-cleanable triboelectric nanogenerators , 2018, Nature Communications.

[37]  Xiaoyu Shi,et al.  Electrochemically Scalable Production of Fluorine-Modified Graphene for Flexible and High-Energy Ionogel-Based Microsupercapacitors. , 2018, Journal of the American Chemical Society.

[38]  Jun Zhou,et al.  Fiber-based generator for wearable electronics and mobile medication. , 2014, ACS nano.

[39]  Changlin Zhou,et al.  Hierarchically Structured Self‐Healing Sensors with Tunable Positive/Negative Piezoresistivity , 2018 .

[40]  Sai Sunil Kumar Mallineni,et al.  Facile and robust triboelectric nanogenerators assembled using off-the-shelf materials , 2017 .

[41]  Renjie Chen,et al.  Ionogel Electrolytes for High‐Performance Lithium Batteries: A Review , 2018 .

[42]  Lei Jiang,et al.  Preparation of High‐Performance Ionogels with Excellent Transparency, Good Mechanical Strength, and High Conductivity , 2017, Advanced materials.