3 years ago

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

Tin Sulfide-Based Nanohybrid for High-Performance Anode of Sodium-Ion Batteries
Young Soo Yun, Hyoung-Joon Jin, Jaewon Choi, Paul V. Braun, Jin Gu Kang, Hyeon Ji Yoon, Kyojin Ku, Na Rae Kim, Kyungmi Lim, Kisuk Kang
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. A paper-type nanohybrid anode (PNA) based on tin sulfide nanoparticles and acid-treated multi-walled carbon nanotubes is fabricated for Na-ion batteries, showing feasible electrochemical performance with high Coulombic efficiency and low-voltage plateau.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/smll.201700767

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.