Issue 33, 2024

Unleashing the potential of Li–O2 batteries with electronic modulation and lattice strain in pre-lithiated electrocatalysts

Abstract

Efficient catalysts are indispensable for overcoming the sluggish reaction kinetics and high overpotentials inherent in Li–O2 batteries. However, the lack of precise control over catalyst structures at the atomic level and limited understanding of the underlying catalytic mechanisms pose significant challenges to advancing catalyst technology. In this study, we propose the concept of precisely controlled pre-lithiated electrocatalysts, drawing inspiration from lithium electrochemistry. Our results demonstrate that Li+ intercalation induces lattice strain in RuO2 and modulates its electronic structure. These modifications promote electron transfer between catalysts and reaction intermediates, optimizing the adsorption behavior of Li–O intermediates. As a result, Li–O2 batteries employing Li0.52RuO2 exhibit ultrahigh energy efficiency, long lifespan, high discharge capacity, and excellent rate performance. This research offers valuable insights for the design and optimization of efficient electrocatalysts at the atomic level, paving the way for further advancements in Li–O2 battery technology.

Graphical abstract: Unleashing the potential of Li–O2 batteries with electronic modulation and lattice strain in pre-lithiated electrocatalysts

Supplementary files

Article information

Article type
Edge Article
Submitted
17 May 2024
Accepted
20 Jul 2024
First published
22 Jul 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 13209-13217

Unleashing the potential of Li–O2 batteries with electronic modulation and lattice strain in pre-lithiated electrocatalysts

Z. Zhang, D. Huang, S. Xing, M. Li, J. Wu, Z. Zhang, Y. Dou and Z. Zhou, Chem. Sci., 2024, 15, 13209 DOI: 10.1039/D4SC03242J

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