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Superelastic Hybrid CNT/Graphene Fibers for Wearable Energy Storage
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-11-29 , DOI: 10.1002/aenm.201702047 Zan Lu 1, 2 , Javad Foroughi 2, 3 , Caiyun Wang 2 , Hairu Long 1 , Gordon G. Wallace 2
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-11-29 , DOI: 10.1002/aenm.201702047 Zan Lu 1, 2 , Javad Foroughi 2, 3 , Caiyun Wang 2 , Hairu Long 1 , Gordon G. Wallace 2
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The demands for wearable technologies continue to grow and novel approaches for powering these devices are being enabled by the advent of new electromaterials and novel fabrication strategies. Herein, a novel approach is reported to develop superelastic wet‐spun hybrid carbon nanotube graphene fibers followed by electrodeposition of polyaniline to achieve a high‐performance fiber‐based supercapacitor. It is found that the specific capacitance of hybrid carbon nanotube (CNT)/graphene fiber is enhanced up to ≈39% using a graphene to CNT fiber ratio of 1:3. Fabrication of spring‐like coiled fiber coated with an elastic polymer shows an extraordinary elasticity capable of 800% strain while affording a specific capacitance of ≈138 F g−1. The elastic rubber coating enables extreme stretchability and enabling cycles with up to 500% strain for thousands of cycles with no significant change in its performance. Multiple supercapacitors can be easily assembled in series or parallel to meet specific energy and power needs.
中文翻译：
用于穿戴式能量存储的超弹性CNT /石墨烯杂化纤维
对可穿戴技术的需求不断增长，并且随着新电子材料和新颖制造策略的出现，为这些设备供电的新颖方法得以实现。本文报道了一种新方法，即先开发超弹性湿纺混杂碳纳米管石墨烯纤维，然后再电沉积聚苯胺以实现高性能的基于纤维的超级电容器。研究发现，当石墨烯与CNT纤维的比例为1：3时，杂化碳纳米管（CNT）/石墨烯纤维的比电容可提高至约39％。涂覆有弹性聚合物的弹簧状盘绕纤维的制造显示出非凡的弹性，能够承受800％的应变，同时提供约138 F g -1的比电容。弹性橡胶涂层可实现极高的可拉伸性，并允许以高达500％的应变循环数以千计的循环，而其性能没有明显变化。多个超级电容器可以容易地串联或并联组装，以满足特定的能源和功率需求。
更新日期：2017-11-29
中文翻译：
用于穿戴式能量存储的超弹性CNT /石墨烯杂化纤维
对可穿戴技术的需求不断增长，并且随着新电子材料和新颖制造策略的出现，为这些设备供电的新颖方法得以实现。本文报道了一种新方法，即先开发超弹性湿纺混杂碳纳米管石墨烯纤维，然后再电沉积聚苯胺以实现高性能的基于纤维的超级电容器。研究发现，当石墨烯与CNT纤维的比例为1：3时，杂化碳纳米管（CNT）/石墨烯纤维的比电容可提高至约39％。涂覆有弹性聚合物的弹簧状盘绕纤维的制造显示出非凡的弹性，能够承受800％的应变，同时提供约138 F g -1的比电容。弹性橡胶涂层可实现极高的可拉伸性，并允许以高达500％的应变循环数以千计的循环，而其性能没有明显变化。多个超级电容器可以容易地串联或并联组装，以满足特定的能源和功率需求。
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