共查询到20条相似文献,搜索用时 15 毫秒
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Zhiyu Wang Si Qin Shayan Seyedin Jizhen Zhang Jiangting Wang Ariana Levitt Na Li Carter Haines Raquel Ovalle‐Robles Weiwei Lei Yury Gogotsi Ray H. Baughman Joselito M. Razal 《Small (Weinheim an der Bergstrasse, Germany)》2018,14(37)
Yarn‐shaped supercapacitors (YSCs) once integrated into fabrics provide promising energy storage solutions to the increasing demand of wearable and portable electronics. In such device format, however, it is a challenge to achieve outstanding electrochemical performance without compromising flexibility. Here, MXene‐based YSCs that exhibit both flexibility and superior energy storage performance by employing a biscrolling approach to create flexible yarns from highly delaminated and pseudocapacitive MXene sheets that are trapped within helical yarn corridors are reported. With specific capacitance and energy and power densities values exceeding those reported for any YSCs, this work illustrates that biscrolled MXene yarns can potentially provide the conformal energy solution for powering electronics beyond just the form factor of flexible YSCs. 相似文献
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Water Surface Assisted Synthesis of Large‐Scale Carbon Nanotube Film for High‐Performance and Stretchable Supercapacitors 下载免费PDF全文
Minghao Yu Yangfan Zhang Yinxiang Zeng Muhammad‐Sadeeq Balogun Kancheng Mai Zishou Zhang Xihong Lu Yexiang Tong 《Advanced materials (Deerfield Beach, Fla.)》2014,26(27):4724-4729
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MXene Yarn Supercapacitors: High‐Performance Biscrolled MXene/Carbon Nanotube Yarn Supercapacitors (Small 37/2018) 下载免费PDF全文
Zhiyu Wang Si Qin Shayan Seyedin Jizhen Zhang Jiangting Wang Ariana Levitt Na Li Carter Haines Raquel Ovalle‐Robles Weiwei Lei Yury Gogotsi Ray H. Baughman Joselito M. Razal 《Small (Weinheim an der Bergstrasse, Germany)》2018,14(37)
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High‐Performance Two‐Ply Yarn Supercapacitors Based on Carbon Nanotube Yarns Dotted with Co3O4 and NiO Nanoparticles 下载免费PDF全文
Yarn supercapacitors are promising power sources for flexible electronic applications that require conventional fabric‐like durability and wearer comfort. Carbon nanotube (CNT) yarn is an attractive choice for constructing yarn supercapacitors used in wearable textiles because of its high strength and flexibility. However, low capacitance and energy density limits the use of pure CNT yarn in wearable high‐energy density devices. Here, transitional metal oxide pseudocapacitive materials NiO and Co3O4 are deposited on as‐spun CNT yarn surface using a simple electrodeposition process. The Co3O4 deposited on the CNT yarn surface forms a uniform hybridized CNT@Co3O4 layer. The two‐ply supercapacitors formed from the CNT@Co3O4 composite yarns display excellent electrochemical properties with very high capacitance of 52.6 mF cm?2 and energy density of 1.10 μWh cm?2. The high performance two‐ply CNT@Co3O4 yarn supercapacitors are mechanically and electrochemically robust to meet the high performance requirements of power sources for wearable electronics. 相似文献
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Oxygen‐Deficient Hematite Nanorods as High‐Performance and Novel Negative Electrodes for Flexible Asymmetric Supercapacitors 下载免费PDF全文
Xihong Lu Yinxiang Zeng Minghao Yu Teng Zhai Chaolun Liang Shilei Xie Muhammad‐Sadeeq Balogun Yexiang Tong 《Advanced materials (Deerfield Beach, Fla.)》2014,26(19):3148-3155
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Self‐Supporting GaN Nanowires/Graphite Paper: Novel High‐Performance Flexible Supercapacitor Electrodes 下载免费PDF全文
Shouzhi Wang Changlong Sun Yongliang Shao Yongzhong Wu Lei Zhang Xiaopeng Hao 《Small (Weinheim an der Bergstrasse, Germany)》2017,13(8)
Flexible supercapacitors have attracted great interest as energy storage devices because of their promise in applications such as wearable and smart electronic devices. Herein, a novel flexible supercapacitor electrode based on gallium nitride nanowire (GaN NW)/graphite paper (GP) nanocomposites is reported. The outstanding electrical conductivities of the GaN NW (6.36 × 102 S m?1) and GP (7.5 × 104 S m?1) deliver a synergistically enhanced electrochemical performance that cannot be achieved by either of the components alone. The composite electrode exhibits excellent specific capacitance (237 mF cm?2 at 0.1 mA cm?2) and outstanding cycling performance (98% capacitance retention after 10 000 cycles). The flexible symmetric supercapacitor also manifests high energy and power densities (0.30 mW h cm?3 and 1000 mW cm?3). These findings demonstrate that the GaN/GP composite electrode has significant potential as a candidate for the flexible energy storage devices. 相似文献
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Flexible,Stretchable, and Transparent Planar Microsupercapacitors Based on 3D Porous Laser‐Induced Graphene 下载免费PDF全文
Weixing Song Jianxiong Zhu Baoheng Gan Shuyu Zhao Hui Wang Congju Li Jie Wang 《Small (Weinheim an der Bergstrasse, Germany)》2018,14(1)
The graphene with 3D porous network structure is directly laser‐induced on polyimide sheets at room temperature in ambient environment by an inexpensive and one‐step method, then transferred to silicon rubber substrate to obtain highly stretchable, transparent, and flexible electrode of the all‐solid‐state planar microsupercapacitors. The electrochemical capacitance properties of the graphene electrodes are further enhanced by nitrogen doping and with conductive poly(3,4‐ethylenedioxythiophene) coating. With excellent flexibility, stretchability, and capacitance properties, the planar microsupercapacitors present a great potential in fashionable and comfortable designs for wearable electronics. 相似文献
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Chenyang Yu Jianing An Ruicong Zhou Hai Xu Jinyuan Zhou Qiang Chen Gengzhi Sun Wei Huang 《Small (Weinheim an der Bergstrasse, Germany)》2020,16(25)
Fiber‐based supercapacitors (FSCs) possess great potential as an ideal type of power source for future weaveable/wearable electronics and electronic‐textiles. The performance of FSCs is, without doubt, primarily determined by the properties of fibrous electrodes. Carbonaceous fibers, e.g., commercial carbon fibers, newly developed graphene fibers, and carbon nanotube fibers, are deemed as promising materials for weaveable/wearable supercapacitors owing to their exotic properties including high tensile strength and robustness, excellent electrical conductivity, good flexibility, and environmental stability. Nevertheless, bare carbonaceous fiber normally exhibits low capacitance originating from electric double‐layer capacitance, which remains unsatisfactory for efficiently powering wearable and portable devices. Numerous efforts have been devoted to tailoring fiber properties by hybridizing pseudocapacitive materials, and impressive progress has been achieved thus far. Herein, the microstructures of pristine carbonaceous fibers are introduced in detail, and the recent advances in rational nano/microstructure design of their hybrids, which provides the feasibility to achieve the synergistic interaction between conductive agents and pseudocapacitive nanomaterials but are normally overlooked, are comprehensively reviewed. Besides, the challenges in developing high‐performance fibrous electrodes are also elaborately discussed. 相似文献
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Negatively Strain‐Dependent Electrical Resistance of Magnetically Arranged Nickel Composites: Application to Highly Stretchable Electrodes and Stretchable Lighting Devices 下载免费PDF全文
Sangwoo Kim Junghwan Byun Seongdae Choi Donghyun Kim Taehoon Kim Seungjun Chung Yongtaek Hong 《Advanced materials (Deerfield Beach, Fla.)》2014,26(19):3094-3099
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Simultaneous Production of High‐Performance Flexible Textile Electrodes and Fiber Electrodes for Wearable Energy Storage 下载免费PDF全文
Liubing Dong Chengjun Xu Yang Li Changle Wu Baozheng Jiang Qian Yang Enlou Zhou Feiyu Kang Quan‐Hong Yang 《Advanced materials (Deerfield Beach, Fla.)》2016,28(8):1675-1681