气候变化领域集成服务门户(CCPortal): Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

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DOI	10.1016/j.scib.2020.03.004
	Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery
	Liu C.; Li Q.; Cao J.; Zhang Q.; Man P.; Zhou Z.; Li C.; Yao Y.
发表日期	2020
ISSN	20959273
起始页码	812
结束页码	819
卷号	65 期号:10
英文摘要	Fiber-shaped energy storage devices are indispensable parts of wearable and portable electronics. Aqueous rechargeable Ni/Fe battery is a very appropriate energy storage device due to their good safety without organic electrolytes, high ionic conductivity, and low cost. Unfortunately, the low energy density, poor power density and cycling performance hinder its further practical applications. In this study, in order to obtain high performance negative iron-based material, we first synthesized α-iron oxide (α-Fe2O3) nanorods (NRs) with superstructures on the surface of highly conductive carbon nanotube fibers (CNTFs), then electrically conductive polypyrrole (PPy) was coated to enhance the electron, ion diffusion and cycle stability. The as-prepared α-Fe2O3@PPy NRs/CNTF electrode shows a high specific capacity of 0.62 Ah cm−3 at the current density of 1 A cm−3. Furthermore, the Ni/Fe battery that was assembled by the above negative electrode shows a maximum volumetric energy density of 15.47 mWh cm−3 with 228.2 mW cm−3 at a current density of 1 A cm−3. The cycling durability and mechanical flexibility of the Ni/Fe battery were tested, which show good prospect for practical application. In summary, these merits make it possible for our Ni/Fe battery to have practical applications in next generation flexible energy storage devices. © 2020 Science China Press
关键词	Ni/Fe battery PPy coating Superstructures Wearable electronics α-Fe2O3 nanorods
英文关键词	Carbon nanotubes; Durability; Electrodes; Energy storage; Hematite; Nanorods; Nickel compounds; Polypyrroles; Storage (materials); Wearable technology; Conductive carbon nanotubes; Electrically conductive; High specific capacity; Iron based materials; Mechanical flexibility; Portable electronics; Superstructures; Volumetric energy densities; Secondary batteries
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207124
作者单位	School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China; Division of Advanced Nanomaterials, Key Laboratory of Nanodevices and Applications, Joint Key Laboratory of Functional Nanomaterials and Devices, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nanotech and Nanobionics, Chinese Academy of Sciences, Suzhou, 215123, China; National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China; Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Nanchang, Chinese Academy of Sciences, Nanchang, 330200, China; Senior 1 Class 15, Suzhou High School of Jiangsu Province, Suzhou, 215123, China
推荐引用方式 GB/T 7714	Liu C.,Li Q.,Cao J.,et al. Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery[J],2020,65(10).
APA	Liu C..,Li Q..,Cao J..,Zhang Q..,Man P..,...&Yao Y..(2020).Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery.Science Bulletin,65(10).
MLA	Liu C.,et al."Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery".Science Bulletin 65.10(2020).