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Dynamically Forming Interconnected Interfaces in Confined Heterostructures Enable High Capacity Conversion Chemistry.
- Source :
-
Advanced Energy Materials . Jul2024, Vol. 14 Issue 25, p1-10. 10p. - Publication Year :
- 2024
-
Abstract
- Heterostructures endow electrochemical hybrids with promising energy storage properties owing to synergistic effects and interfacial interaction. However, developing a facile but effective approach to maximize interface effects is crucial but challenging. Herein, a bimetallic selenide heterostructure is realized in a confined carbon network via an in situ electrochemical strategy to induce highly active and stable electrode architecture. The dynamically formed heterostructures upon repeated delithiation/lithiation process not only yield abundant interconnected SnSe2/FeSe2 heterojunctions with continuous channels for ion/electron transfer but maintain excellent conversion reversibility. Serving as anode for lithium storage, the SnSe2/FeSe2@C framework enables a high discharging capacity of 1781.9 mAh g−1 at 0.5 A g−1 after 500 cycles and superior cycling stability (no capacity fade after 1200 cycles at 2 A g−1). This study can guide future design protocols for interface engineering through the formation of dynamic channels of conversion reaction kinetics for potential applications in high‐performance electrodes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16146832
- Volume :
- 14
- Issue :
- 25
- Database :
- Academic Search Index
- Journal :
- Advanced Energy Materials
- Publication Type :
- Academic Journal
- Accession number :
- 178296971
- Full Text :
- https://doi.org/10.1002/aenm.202400498