线状可充电锌空气电池
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- 英文论文题名：Rechargeable Fiber-Shaped Zinc-Air Battery
- 论文作者：徐一帆 ; 王永刚 ; 彭慧胜
- 英文论文作者：Yifan Xu ; Yonggang Wang ; Huisheng Peng ; Laboratory of Advanced Materials ; Fudan University ; Department of Chemistry ; Fudan University
- 年：2016
- 作者机构：复旦大学先进材料实验室;复旦大学化学系;
- 论文关键词：碳纳米管 ; 柔性器件 ; 锌空气电池
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十一分会：纳米材料与器件
- 语种：中文
- 分类号：TM911.41
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十一分会 ; 纳米材料与器件
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：219k
- 原文格式：D
- 会议级别：全国
摘要
可拉伸弯曲的便携可穿戴器件是一个新兴的、有前景的领域,当下受到广泛的研究关注。~[1]锌空气电池是一类具有较高体积能量密度的能源器件,适合为电子设备提供长时间连续供能,且电池制备工艺较为成熟,生产成本低以及环境污染小,适宜大规模商业化生产。~[2]然而传统的锌空气电池都受限于刚性平面的结构且不可充电,并不适宜为可穿戴电子设备供能。本文提出了一种基于交错取向碳纳米管(CNT)薄膜的线状可充电锌空气电池的制备方法。在锌弹簧负极上包裹聚乙烯醇(PVA)/聚环氧乙烷(PEO)/氢氧化钾(KOH)水凝胶作为电解液,沾涂二氧化钌(RuO_2)水合物作为氧析出(OER)催化层,最外层包覆交错的碳纳米管薄膜作为电池的正极空气电极。该线状锌空气电池(Fig.1)能够在2 A/g的高电流密度下反复进行充放电(Fig.2),且具有良好的柔性与拉伸性(Fig.3),有望为各类便携及可穿戴电子设备供能。
The fabrication of flexible, stretchable and rechargeable devices with a high energy density is critical for next generation electronics. Herein, fiber-shaped Zn–air batteries, are realized for the first time by designing aligned, cross-stacked and porous carbon nanotube sheets simultaneously that behave as a gas diffusion layer, a catalyst layer, and a current collector. The combined remarkable electronic and mechanical properties of the aligned carbon nanotube sheets endow good electrochemical properties. They display excellent discharge and charge performances at a high current density of 2 A/g. They are also flexible and stretchable, which is particularly promising to power portable and wearable electronic devices.
The fabrication of flexible, stretchable and rechargeable devices with a high energy density is critical for next generation electronics. Herein, fiber-shaped Zn–air batteries, are realized for the first time by designing aligned, cross-stacked and porous carbon nanotube sheets simultaneously that behave as a gas diffusion layer, a catalyst layer, and a current collector. The combined remarkable electronic and mechanical properties of the aligned carbon nanotube sheets endow good electrochemical properties. They display excellent discharge and charge performances at a high current density of 2 A/g. They are also flexible and stretchable, which is particularly promising to power portable and wearable electronic devices.
引文
[1]Yang Z.,Ren J.,Zhang Z.,Chen X.,Guan G.,Qiu L.,Zhang Y.,Peng H.,Chem.Rev.2015,115:5159.
[2]Li Y.,Dai H.,Chem.Soc.Rev.2014,43:5257.
[2]Li Y.,Dai H.,Chem.Soc.Rev.2014,43:5257.