A unique chemical pre-zincification method successfully stabilizes the V3+/V4+ mixed-valence state in NASICON-type cathodes, ensuring excellent structural stability. (IMAGE)

Tsinghua University Press

A unique chemical pre-zincification method successfully stabilizes the V3+/V4+ mixed-valence state in NASICON-type cathodes, ensuring excellent structural stability.

Caption

Design strategy for the ZLVP cathode. The lattice of Li₃V₂(PO₄)₃ lacks sufficient open space to accommodate Zn2+ ions. Li+ ions are chemically extracted to create vacant sites and enlarge diffusion channels, allowing for Zn2+ to be reintroduced into these openings. This pre-zincification yields a robust framework with exceptional durability of over 5,000 cycles.

Credit

Liangyu Li, Wuhan University

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