A membrane-free lithium/polysulfide semi-liquid battery for large-scale energy storage
Large-scale energy storage represents a key challenge for renewable energy and new systems with low cost, high energy density and long cycle life are desired. In this article, we develop a new lithium/polysulfide (Li/PS) semi-liquid battery for large-scale energy storage, with lithium polysulfide (Li2S8) in
<div class="viewport autopad--h fixpadb--m"> <div class="plate plate--warning"> You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our <a href="/en[redacted]">non-JavaScript page</a>. </div> </div> Issue 5, 2013 Previous Article Next Article From the journal: Energy & Environmental Science A membrane-free lithium/polysulfide semi-liquid battery for large-scale energy storage† Yuan Yang,‡a Guangyuan Zheng‡b and Yi Cui*ac Author affiliations * Corresponding authors a Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA E-mail: [email protected] b Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA c SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, 2575 Sand Hill Road, Menlo Park, California 94025, USA Abstract Large-scale energy storage represents a key challenge for renewable energy and new systems with low cost, high energy density and long cycle life are desired. In this article, we develop a new lithium/polysulfide (Li/PS) semi-liquid battery for large-scale energy storage, with lithium polysulfide (Li2S8) in ether solvent as a catholyte and metallic lithium as an anode. Unlike previous work on Li/S batteries with discharge products such as solid state Li2S2 and Li2S, the catholyte is designed to cycle only in the range between sulfur and Li2S4. Consequently all detrimental effects due to the formation and volume expansion of solid Li2S2/Li2S are avoided. This novel strategy results in excellent cycle life and compatibility with flow battery design. The proof-of-concept Li/PS battery could reach a high energy density of 170 W h kg−1 and 190 W h L−1 for large scale storage at the solubility limit, while keeping the advantages of hybrid flow batteries. We demonstrated that, with a 5 M Li2S8 catholyte, energy densities of 97 W h kg−1 and 108 W h L−1 can be achieved. As the lithium surface is well passivated by LiNO3 additive in ether solvent, internal shuttle effect is largely eliminated and thus excellent performance over 2000 cycles is achieved with a constant capacity of 200 mA h g−1. This new system can operate without the expensive ion-selective membrane, and it is attractive for large-scale energy storage. You have access to this article Please wait while we load your content... Something went wrong. Try again? About Cited by Related Download options Please wait... Supplementary files Supplementary information PDF (539K) Article information DOI https://doi.org/10.1039/C3EE00072A Article type Paper Submitted 09 Jan 2013 Accepted 07 Mar 2013 First published 08 Mar 2013 Download Citation Energy Environ. Sci., 2013,6, 1552-1558 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS Permissions Request permissions A membrane-free lithium/polysulfide semi-liquid battery for large-scale energy storage Y. Yang, G. Zheng and Y. Cui, Energy Environ. Sci., 2013, 6, 1552 DOI: 10.1039/C3EE00072A To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page. If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given. If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page. Read more about how to correctly acknowledge RSC content. Social activity Tweet Share Search articles by author Yuan Yang Guangyuan Zheng Yi Cui Fetching data from CrossRef. This may take some time to load. Loading related content Spotlight Advertisements