A knittable fiber-shaped supercapacitor based on natural cotton thread for wearable electronics

Zhou, Qianlong; Jia, Chunyang; Ye, Xingke; Tang, Zhonghua; Wan, Zhongquan

doi:10.1016/j.jpowsour.2016.07.048

Cited by 68 publications

(47 citation statements)

References 45 publications

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“…Two kinds of materials are mainly used as substrates. First, coating or growing active materials on metal wires has been proven effective in preparing fiber‐shaped electrodes . Owing to their high conductivity, many metal wires have been used as current collectors, such as stainless steel,, Au, Ni, and Pt wires.…”

Section: Introductionmentioning

confidence: 99%

“…Owing to their high conductivity, many metal wires have been used as current collectors, such as stainless steel,, Au, Ni, and Pt wires. However, the FSSCs prepared with metal wires, given their intrinsic rigid and bulky figures, remain too tough to be woven into smart garments or wearable electronics . In addition, metal wires will make the devices heavy and expensive, and have a short lifetime .…”

Section: Introductionmentioning

confidence: 99%

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Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

et al. 2019

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Fiber‐shaped supercapacitors (FSSCs) are expected to motivate the development of wearable electronics. However, their high cost and complex operations limit their industrial production. Herein, commercial sewing threads are utilized as fiber substrates to prepare FSSCs via facile methods. The sewing threads become conductive after poly(3,4‐ethylenedioxythiophene) (PEDOT) uniformly grew on the porous surface by in situ polymerization of vacuum‐deposited 2,5‐dibromo‐3,4‐ethylenedioxythiophene. Then, MnO2 nanoflakes electrochemically grow on the conductive threads and the PEDOT layer uniformly wraps the flake surface, thereby improving the electrochemical performance. The FSSCs based on PEDOT/MnO2/PEDOT sandwich structure exhibit a high specific capacitance of 53.89 mF cm–1 (132.02 mF cm–2), an energy density of 3.07 μWh cm–1 (7.51 μWh cm–2), and a power density of 21.3 μW cm−1 (52.3 μW cm–2). Mild polymerization plays a vital role in converting the sewing threads into fiber electrodes with excellent properties. It confers electrodes with a robust adhesion ability, which results in excellent stability. The intrinsic knittability of sewing threads endows the FSSCs with outstanding flexibility. The low cost of the materials and facile preparation methods promote the large‐scale production and wide application of FSSCs. Moreover, these FSSCs based on sewing threads provide insight into the opportunity to develop smart and wearable electronics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

et al. 2019

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“…Figure 5a presents the CV curves of the as-fabricated PMS YSC at different scanning rates ranging from 20 to 100 mV s −1 . [19,41,42] In addition, the nearly vertical line at low-frequency region reveals the good electrochemical properties of the device. The charge transport performance of the PMS YSC was characterized by electrochemical impedance spectra (EIS), and the corresponding Nyquist plot is given in Figure 5b.…”

Section: Resultsmentioning

confidence: 88%

High‐Performance Yarn Supercapacitor Based on Metal–Inorganic–Organic Hybrid Electrode for Wearable Electronics

Yang

Liu

Zang

et al. 2018

Adv Elect Materials

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A flexible all‐solid‐state yarn supercapacitor (YSC) based on metal–inorganic–organic ternary hybrid structure is fabricated by assembling polypyrrole@manganese oxide nanosheets@stainless steel yarn (PMS) yarn electrode of core/sheath/sheath configuration. The PMS yarn electrode combines the advantages of each component and shows excellent electrochemical performance, mechanical flexibility, and flame retardance owing to its unique structure and synergistic effect. The as‐fabricated YSC exhibits a high areal specific capacitance of 181 mF cm−2, areal energy density of 16.1 µWh cm−2, and areal power density of 10.3 mW cm−2. Moreover, the device possesses desirable voltage/current scalability and outstanding mechanical stability, which maintains 95.8% capacitance retention after 1000 bending cycles. As a demonstration, four YSCs are connected in series and then charged for 10 s to drive a light‐emitting diode (LED) digital watch. The outstanding overall performance of the YSC indicates that it is an ideal flexible power source for safe wearable electronics.

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“…대체 에너지 응용 중에서도 전 기화학 커패시터의 한 종류인 전기이중층의 원리를 이용한 전기이중층 커패시터는 빠른 충?방전 속도, 높은 출력 밀도, 긴 수명 특성 등의 장점을 가지고 있어 이에 대한 연구가 전 세계적으로 활발히 이루 어지고 있는 추세이다 [4][5][6]. 하지만, 전기화학 커패 시터는 낮은 에너지 밀도를 가지고 있다는 단점을 가지고 있어 이를 보완하기 위해 유기 전해질의 개 발을 통한 작동 전압 범위 향상 [7,8] 및 전극 물 질의 비표면적 증가를 통한 비정전용량 증가 [9][10][11] 등에 관한 연구가 이루어지고 있다.…”

Section: 서 론unclassified

“…하지만, 전기화학 커패 시터는 낮은 에너지 밀도를 가지고 있다는 단점을 가지고 있어 이를 보완하기 위해 유기 전해질의 개 발을 통한 작동 전압 범위 향상 [7,8] 및 전극 물 질의 비표면적 증가를 통한 비정전용량 증가 [9][10][11] 등에 관한 연구가 이루어지고 있다. 선행 연구자들 은 전기화학 커패시터의 커패시턴스 즉, 용량 값과 구동 전압을 향상 시키는 것은 전극물질의 에너지 밀도를 향상시키는 효과적인 방법이라고 발표하고 있다 [1,3,[5][6][7][8][9]. 활성 탄소를 전극으로 사용하는 EDLC에서 활성탄소 전극재료는 비정전용량의 비 표면적에 비례하기 때문에 다공성을 부여하여 에너 지밀도의 향상을 모색하는 연구가 활발히 이루어지 고 있다 [12,13].…”

Section: 서 론unclassified

The Study of Manufacturing the AAO Template and Fabrication of Carbon and Metal Oxide Nanofibers using AAO Template

Kim¹,

Park²

2016

Journal of the Korean institute of surface engineering

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In this study, we manufactured the anodized alumina oxide (AAO) template and fabricated the carbon nanofibers and manganese oxide nanofibers using AAO template for application to electrochemical capacitor. Pore diameters of the AAO template were increased from 50 to 90 nm by increasing the acid treatment time after two-step anodizing process. Furthermore nanofibers, which is fabricated by AAO template, showed uniform diameter and micro structure. It is suggested that the surface area is larger than commercial electrode material and it is enhancing the energy density by increasing the specific capacitance.

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A knittable fiber-shaped supercapacitor based on natural cotton thread for wearable electronics

Cited by 68 publications

References 45 publications

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

Converting Commercial Sewing Threads into High‐Performance and Flexible/Wearable Fiber‐Shaped Supercapacitors via Facile Vapor Deposition Polymerization

High‐Performance Yarn Supercapacitor Based on Metal–Inorganic–Organic Hybrid Electrode for Wearable Electronics

The Study of Manufacturing the AAO Template and Fabrication of Carbon and Metal Oxide Nanofibers using AAO Template

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