Knitted and screen printed carbon-fiber supercapacitors for applications in wearable electronics
Knitted and screen printed carbon-fiber supercapacitors for applications in wearable electronics
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DOI：
10.1039/c3ee40515j
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发表时间：
2013-09-01
影响因子：
32.5
通讯作者：
Dion, Genevieve
中科院分区：
文献类型：
--
作者：
Jost, Kristy;Stenger, Daniel;Dion, Genevieve
能源纺织品领域正在不断发展，但仍然面临两个主要挑战：（1）柔性储能尚不存在可直接与日常织物相比较的形式，包括其手感、悬垂性和厚度；（2）为了生产作为服装一部分的“能源纺织品”，必须以系统的方式制造它，允许同时集成电子纺织品的多个组件。为了帮助解决这些问题，我们开发了基于针织碳纤维和活性炭墨水的纺织超级电容器。我们发现每个器件在 10 mV s(-1) 时的电容高达 0.51 F cm(-2)，这与在相同条件下测试的标准活性炭膜电极的电容可直接比较。我们还演示了该设备在弯曲 90 度、135 度、180 度以及拉伸时的性能。这是第一份关于针织作为集成储能装置制造技术的报告。
The field of energy textiles is growing but continues to face two main challenges: (1) flexible energy storage does not yet exist in a form that is directly comparable with everyday fabrics including their feel, drape and thickness, and (2) in order to produce an "energy textile" as part of a garment, it must be fabricated in a systematic manner allowing for multiple components of e-textiles to be integrated simultaneously. To help address these issues, we have developed textile supercapacitors based on knitted carbon fibers and activated carbon ink. We show capacitances as high as 0.51 F cm(-2) per device at 10 mV s(-1), which is directly comparable with those of standard activated carbon film electrodes tested under the same conditions. We also demonstrate the performance of the device when bent at 90 degrees, 135 degrees, 180 degrees and when stretched. This is the first report on knitting as a fabrication technique for integrated energy storage devices.