Heterogeneous structured pomegranate-like Bi@C nanospheres for high-performance sodium storage

In this work, a heterojunction of pomegranate-like Bi@C nanospheres (PBCNSs) anode with a protective structure and more active sites shows an outstanding rate performance and a long cycle life with no capacity decay at 20 A g⁻¹ for SIBs.

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