Henry M. Woolley, Martin Lange, Elina Nazmutdinova, Nella M. Vargas-Barbosa
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Toward High-Capacity Li–S Solid-State Batteries: The Role of Partial Ionic Transport in the Catholyte
To address the challenges of tortuous partial ionic transport and chemomechanical failure due to the large volumetric changes of sulfur during all-solid-state battery cycling, we evaluate a hybrid electrolyte composed of the lithium chloride argyrodite Li6PS5Cl (LPSCl) and an ionic liquid-based lithium liquid electrolyte (ILE) in the cathode composite of Li–S half-cells. We confirm the stability of the LPSCl/ILE interface by coupling Raman and impedance spectroscopy measurements. Charge–discharge curves show a capacity improvement for the hybrid cells (1364 ± 151 mAh·g–1), compared to 904 ± 186 mAh·g–1 for pristine cells. Transport measurements quantify an increase in the partial ionic conductivity of proxy cathode layers from 0.2 to 0.4 mS·cm–1 in hybrid cells. Taken together, the use of the ILE increases the partial ionic transport and access to sulfur which results in higher and more stable discharge capacities.
ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment
CiteScore
31.20
自引率
5.00%
发文量
469
审稿时长
1 months
期刊介绍:
ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format.
ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology.
The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.