Enhanced Built-In Electric Field Facilitates Electron and Ion Transfer for High-Performance Lithium-Sulfur Batteries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933842" target="_blank" >RIV/60461373:22310/25:43933842 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acssuschemeng.5c09447" target="_blank" >https://pubs.acs.org/doi/10.1021/acssuschemeng.5c09447</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acssuschemeng.5c09447" target="_blank" >10.1021/acssuschemeng.5c09447</a>
Alternative languages
Result language
angličtina
Original language name
Enhanced Built-In Electric Field Facilitates Electron and Ion Transfer for High-Performance Lithium-Sulfur Batteries
Original language description
The complex and multistep redox reactions of sulfur species result in severe polysulfide shuttling, which remains a key obstacle to the practical development of lithium-sulfur batteries (LSBs). To address this challenge, this study employs a rectifying interface constructed from molybdenum dioxide (MoO2) and nitrogen-deficient carbon nitride (DCN), with the aim of enhancing the catalytic conversion efficiency of lithium polysulfides (LiPSs) by regulating electron and ion transport through increased interfacial charge transfer between built-in electric fields. Kelvin probe force microscopy characterization confirms the increase in the work function difference at the heterojunction interface. In situ ultraviolet-visible spectroscopy findings further verify the significant enhancement of LiPS transformation kinetics by the MoO2-DCN heterojunction. The cell with MoO2-DCN separators demonstrates outstanding cycling stability across a wide temperature range (0 to 60 degrees C); specifically, after 100 cycles, the average capacity fade rates are as low as 0.082% and 0.21% per cycle, respectively. Notably, the cell achieves a high initial areal capacity of 7.39 mAh cm-2 even at the elevated sulfur loading of 6.09 mg cm-2. This work provides important experimental guidance for designing high-performance LSBs through the regulation of the heterointerfacial built-in electric field.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Sustainable Chemistry & Engineering
ISSN
2168-0485
e-ISSN
2168-0485
Volume of the periodical
13
Issue of the periodical within the volume
46
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
20253-20264
UT code for WoS article
001609991900001
EID of the result in the Scopus database
2-s2.0-105022798778