Tin Sulfide-Based Nanohybrid for High-Performance Anode of Sodium-Ion Batteries

Jaewon Choi; Na Rae Kim; Kyungmi Lim; Kyojin Ku; Hyeon Ji Yoon; Jin Gu Kang; Kisuk Kang; Paul V Braun; Hyoung-Joon Jin; Young Soo Yun

doi:10.1002/smll.201700767

Tin Sulfide-Based Nanohybrid for High-Performance Anode of Sodium-Ion Batteries

Small. 2017 Aug;13(30). doi: 10.1002/smll.201700767. Epub 2017 Jun 12.

Authors

Jaewon Choi^{1

2}, Na Rae Kim³, Kyungmi Lim⁴, Kyojin Ku⁴, Hyeon Ji Yoon³, Jin Gu Kang¹, Kisuk Kang⁴, Paul V Braun¹, Hyoung-Joon Jin³, Young Soo Yun⁵

Affiliations

¹ Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
² Department of Chemistry, Sungkyunkwan University, Suwon, 16419, South Korea.
³ Department of Polymer Science and Engineering, Inha University, Incheon, 402-751, South Korea.
⁴ Department of Materials Science and Engineering, Seoul National University, Seoul, 151-742, South Korea.
⁵ Department of Chemical Engineering, Kangwon National University, Samcheok, 245-711, South Korea.

PMID: 28605126
DOI: 10.1002/smll.201700767

Abstract

Nanohybrid anode materials for Na-ion batteries (NIBs) based on conversion and/or alloying reactions can provide significantly improved energy and power characteristics, while suffering from low Coulombic efficiency and unfavorable voltage properties. An NIB paper-type nanohybrid anode (PNA) based on tin sulfide nanoparticles and acid-treated multiwalled carbon nanotubes is reported. In 1 m NaPF₆ dissolved in diethylene glycol dimethyl ether as an electrolyte, the above PNA shows a high reversible capacity of ≈1200 mAh g^-1 and a large voltage plateau corresponding to a capacity of ≈550 mAh g^-1 in the low-voltage region of ≈0.1 V versus Na⁺ /Na, exhibiting high rate capabilities at a current rate of 1 A g^-1 and good cycling performance over 250 cycles. In addition, the PNA exhibits a high first Coulombic efficiency of ≈90%, achieving values above 99% during subsequent cycles. Furthermore, the feasibility of PNA usage is demonstrated by full-cell tests with a reported cathode, which results in high specific energy and power values of ≈256 Wh kg^-1 and 471 W kg^-1 , respectively, with stable cycling.

Keywords: Na-ion battery; anode; carbon nanotubes; nanohybrids; tin sulfide.

Publication types

Research Support, Non-U.S. Gov't