基于镍钴双氢氧化物和金属化碳纤维上的笔墨电极的柔性纤维状超级电容器,ACS Applied Materials & Interfaces

当前位置： X-MOL 学术 › ACS Appl. Mater. Interfaces › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

基于镍钴双氢氧化物和金属化碳纤维上的笔墨电极的柔性纤维状超级电容器
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-02-06 00:00:00 , DOI: 10.1021/acsami.6b16101
Libo Gao ₁ , James Utama Surjadi ₁ , Ke Cao ₁ , Hongti Zhang _{1,

2} , Peifeng Li ₁ , Shang Xu _{1,

2} , Chenchen Jiang ₁ , Jian Song ₁ , Dong Sun ₁ , Yang Lu _{1,

2}

Affiliation

柔性纤维状超级电容器（FSSC）最近引起了便携式和可穿戴电子设备的广泛关注。然而，缺乏具有高电导率和电容以及低成本的工业规模柔性纤维极大地限制了其实际工程应用。为此，我们在这里介绍了一种通过化学沉积途径涂覆了一层薄金属层的原始加捻碳纤维（CFs），该碳纤维表现出卓越的导电性，增强了约300％，并具有出色的机械强度（约1.8 GPa）。随后，采用市售的导电笔墨水改性的高导电复合纤维，在其上均匀覆盖的超薄镍钴双氢氧化物（Ni-Co DHs）被引入以制造柔性FSSC。合成的功能化分层柔性纤维展现出高达1的高比电容。^–2在KOH水溶液中。不对称固态FSSCs显示28.67μF的最大比电容·厘米^-2的9.57μWh·厘米和能量密度^-2在相应的功率密度高达492.17μW·厘米^-2在PVA / KOH凝胶电解质，表现出具有高拉伸过程中的灵活性，证明了它们在柔性电子设备和可穿戴能源系统中的潜力。

"点击查看英文标题和摘要"

Flexible Fiber-Shaped Supercapacitor Based on Nickel–Cobalt Double Hydroxide and Pen Ink Electrodes on Metallized Carbon Fiber

Flexible fiber-shaped supercapacitors (FSSCs) are recently of extensive interest for portable and wearable electronic gadgets. Yet the lack of industrial-scale flexible fibers with high conductivity and capacitance and low cost greatly limits its practical engineering applications. To this end, we here present pristine twisted carbon fibers (CFs) coated with a thin metallic layer via electroless deposition route, which exhibits exceptional conductivity with ∼300% enhancement and superior mechanical strength (∼1.8 GPa). Subsequently, the commercially available conductive pen ink modified high conductive composite fibers, on which uniformly covered ultrathin nickel–cobalt double hydroxides (Ni–Co DHs) were introduced to fabricate flexible FSSCs. The synthesized functionalized hierarchical flexible fibers exhibit high specific capacitance up to 1.39 F·cm^–2 in KOH aqueous electrolyte. The asymmetric solid-state FSSCs show maximum specific capacitance of 28.67 mF·cm^–2 and energy density of 9.57 μWh·cm^–2 at corresponding power density as high as 492.17 μW·cm^–2 in PVA/KOH gel electrolyte, with demonstrated high flexibility during stretching, demonstrating their potential in flexible electronic devices and wearable energy systems.

更新日期：2017-02-06

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南

全部期刊列表>>