Journal of Physical Chemistry C
Journal of Physical Chemistry C
5 years ago

Investigation of the Effect of Using Al2O3–Nafion Barrier on Room-Temperature Na–S Batteries

Investigation of the Effect of Using Al2O3–Nafion Barrier on Room-Temperature Na–S Batteries
Ali Ata, Baha Sakar, Osman Ozturk, Elif Ceylan Cengiz, Rezan Demir-Cakan, Zeynep Erdol, Ayse Aslan
Room-temperature sodium–sulfur batteries are promising battery systems because of their high theoretical capacity, high energy density, and low cost. However, their application is hindered by several issues, especially linked with the polysulfide shuttle effect. Herein, Al2O3–Nafion membrane is used to prevent migration of polysulfides from the cathode side to the anode assisting to lessen the active material loss. While Al2O3 is a very effective adsorbent to trap polysulfides anions, Nafion membrane has cation selectivity which permits migration of Na+ cations and repels polysulfide anions due to the negatively charged sulfonic groups. Thus, an increase in the performance of room-temperature sodium–sulfur batteries (RT Na–S batteries) is expected by combining their constructive effects. As a result, higher capacity retention is achieved with ∼250 mAh/g capacities after 100 cycles in the presence of Al2O3–Nafion membrane in contrast to the cell without any interlayer.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b04711

DOI: 10.1021/acs.jpcc.7b04711

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.