A ZnSe/BiSe heterostructure as a sodium-ion battery anode displaying fast reaction kinetics, high capacity, and good full-cell performance.

Chem Commun (Camb)

Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.

Published: August 2025


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Article Abstract

Sodium-ion (Na-ion) batteries with a non-ideal reaction kinetic anode remain a key issue currently. Here, we present a heterostructured ZnSe/BiSe nanocluster coated with carbon displaying fast reaction kinetics. An Raman spectrum evidences species change during charge-discharge, and an X-ray diffraction pattern verifies a good reversibility. The ZnSe/BiSe/NC anode exhibits a high specific capacity of 438 mA h g after 500 cycles at 0.2 A g, and 386 mA h g after 1200 cycles at 1.0 A g. High-performance cells cycling at -10 °C and 50 °C are achieved. These findings will lead to important applications for developing a broad set of energy-storage materials and battery systems.

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http://dx.doi.org/10.1039/d5cc03607kDOI Listing

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