journal article·2019-06-24

A Universal Strategy to Fabricate Metal Sulfides@Carbon Fibers As Freestanding and Flexible Anodes for High-Performance Lithium/Sodium Storage

Ting Du, Hang Zhu, Ben Bin Xu, Chu Liang, Mi Yan, Yinzhu Jiang

ACS Applied Energy Materials· Volume 2· Issue 6
Publisher page

Abstract

The future trend toward flexible electronics creates a demand for flexible power sources using rechargeable batteries, where freestanding and flexible electrodes are of critical importance. The utilization of high capacity anode materials like metal sulfides in flexible batteries is highly desirable for the miniaturization of electronic devices but is nevertheless very challenging in the fabrication of an electrode that is freestanding and flexible. Herein, a universal electrospinning strategy to fabricate freestanding and flexible metal sulfides@carbon electrodes is proposed based on the formation of chelate complexes between l-cysteine and metal cations. Taking SnS as a model material, flexible fiber electrodes are realized with SnS nanoparticles well embedded in the continuous and interwoven carbon fibers. As freestanding electrodes for lithium and sodium storage, a high capacity, good rate capability, and excellent cycling stability are simultaneously achieved. Such a strategy is also successfully extended to the fabrication of Ni3S2/C fibers and Fe7S8/C fibers, suggesting the universality in fabricating freestanding and flexible high capacity electrodes.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Silicon Materials, Key Laboratory of Novel Materials for Information Technology of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P.R. China

Smart Materials and Surfaces Lab, Mechanical Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, U.K.

College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P.R. China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, P.R. China

Funding

Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · Key Laboratory of Materials for Energy Conversion

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