3 years ago

A Design of Solid-State Li-S Cell with Evaporated Lithium Anode To Eliminate Shuttle Effects

A Design of Solid-State Li-S Cell with Evaporated Lithium Anode To Eliminate Shuttle Effects
Yijie Liu, Ping He, Feng Xu, Haoshen Zhou, Sheng Wang, Ningning Feng, Yujie Hao
Li-S batteries hold great potential for energy storage systems due to their high theoretical capacity and low cost. However, the shuttle of polysulfides in conventional Li-S batteries with organic electrolyte results in severe problems, such as low Coulombic efficiency and poor cycling stability. Here, we developed a solid-state Li-S battery using Li1.5Al0.5Ge1.5(PO4)3 (LAGP) solid ceramic electrolyte instead of liquid electrolyte. Lithium film was deposited on one side of LAGP by an evaporation method to improve the contact between anode and LAGP. Sulfur-coated carbon nanotubes cathode (S-MWCNT) composition was casted on the other side of LAGP as the cathode and a small amount of ionic liquid was dropped in order to improve the ionic conductivity. This battery exhibited a high capacity of 1510 mAh g–1 in the first cycle and retained 1400 mAh g–1 after 30 cycles. Meanwhile, the Coulombic efficiency of the battery was almost 100% for each cycle, which indicated the shuttle effect was circumvented completely.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b07057

DOI: 10.1021/acsami.7b07057

You might also like
Never Miss Important Research

Researcher is an app designed by academics, for academics. Create a personalised feed in two minutes.
Choose from over 15,000 academics journals covering ten research areas then let Researcher deliver you papers tailored to your interests each day.

  • 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.