DataVXACS Applied Materials & InterfacesPaper
journal article·2018-10-10

Free-Standing 3D-Sponged Nanofiber Electrodes for Ultrahigh-Rate Energy-Storage Devices

Marco Agostini, Du Hyun Lim, Sergio Brutti, Niklas Lindahl, Jou Hyeon Ahn, Bruno Scrosati, Aleksandar Matic

ACS Applied Materials & Interfaces· Volume 10· Issue 40
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Source abstract

Abstract

We have designed a self-standing anode built-up from highly conductive 3D-sponged nanofibers, that is, with no current collectors, binders, or additional conductive agents. The small diameter of the fibers combined with an internal spongelike porosity results in short distances for lithium-ion diffusion and 3D pathways that facilitate the electronic conduction. Moreover, functional groups at the fiber surfaces lead to the formation of a stable solid-electrolyte interphase. We demonstrate that this anode enables the operation of Li-cells at specific currents as high as 20 A g–1 (approx. 50C) with excellent cycling stability and an energy density which is >50% higher than what is obtained with a commercial graphite anode.
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Research context

Energy storageNanomaterials

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

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

Affiliations

Department of Physics, Chalmers University of Technology, SE41296 Göteborg, Sweden

CNR-ISC, U.O.S. Sapienza, Piazzale A. Moro 5, 00185 Roma, Italy

Department of Materials Engineering and Convergence Technology and Research Institute for Green Energy Convergence Technology, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Republic of Korea

Helmholtz-Institut Ulm (HIU), Ulm 89081, Germany

Funding

Svenska Forskningsr?det Formas · Energimyndigheten · National Research Foundation of Korea · Materials Science and Energy Area of Advance, Chalmers Tekniska H?gskola

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