What question did this study set out to answer?

This research aims to address the limitations of transition metal selenides in sodium-ion battery applications by investigating a new interface.

May 27, 2026Chemical Science0 citationsOpen Access

Synergetic Electronic Spin Modulation and Asymmetric Orbital Hybridization at CoSe 2 /Fe 3 Se 4 Interface Inducing Robust SEI for Enhanced Sodium Ion Storage

MLMa LianHebei University of Technology YSYitong SunTianjin University of Science and Technology DZDi ZhouTianjin University of Science and Technology

Key Points

This research aims to address the limitations of transition metal selenides in sodium-ion battery applications by investigating a new interface.
Investigated the CoSe2/Fe3Se4 interface's electronic and structural properties.
Analyzed the impact of electronic spin modulation and orbital hybridization on sodium ion storage capacity.
The CoSe2/Fe3Se4 interface exhibited a significant increase in sodium ion storage capacity compared to traditional anodes.
Improved electrochemical performance was observed, suggesting stable solid electrolyte interphase formation.

Abstract

Transition metal selenides (TMSes) are recognized as promising anode materials for sodium-ion batteries (SIBs) owing to their ideal capacity and low cost, but their practical application suffers from crucial issues...

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