Tin Nanodots Encapsulated in Porous Nitrogen-Doped Carbon Nanofibers as a Free-Standing Anode for Advanced Sodium-Ion Batteries

Yongchang Liu; Ning Zhang; Lifang Jiao; Jun Chen

doi:10.1002/adma.201503015

Tin Nanodots Encapsulated in Porous Nitrogen-Doped Carbon Nanofibers as a Free-Standing Anode for Advanced Sodium-Ion Batteries

Adv Mater. 2015 Nov;27(42):6702-7. doi: 10.1002/adma.201503015. Epub 2015 Sep 30.

Authors

Yongchang Liu¹, Ning Zhang¹, Lifang Jiao¹, Jun Chen^{1

2}

Affiliations

¹ Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin, 300071, China.
² Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, China.

PMID: 26422696
DOI: 10.1002/adma.201503015

Abstract

Ultrasmall Sn nanodots (1-2 nm) are homogeneously encapsulated in porous N-doped carbon nanofibers using a simple and scalable electrospinning method. The composite nanofibers weave into flexible free-standing membrane and can be directly used as binder- and current collector-free anode for Na-ion batteries, exhibiting excellent electrochemical performance with high reversible capacity, exceptional rate capability, and ultralong cycle life.

Keywords: electrospinning; free-standing anodes; porous N-doped carbon nanofibers; sodium-ion batteries; tin nanodots.