Hydrated Calcium Vanadate Nanoribbons with a Stable Structure and Fast Ion Diffusion as a Cathode for Quasi-Solid-State Zinc-Ion Batteries
Penghua Liang,
Kongjun Zhu,
Yu Rao
et al.
Abstract:We demonstrated the use of hydrated calcium vanadate (CaV 6 O 16 •3H 2 O, denoted as CaVO-2) as a cathode for aqueous zinc-ion batteries (AZIBs). Nanoribbons of hydrated calcium vanadate facilitated shortening of the Zn 2+ transport distance and accelerated zinc-ion insertion. The introduction of interlayer structure water increased the interlayer spacing of calcium vanadate and as a "lubricant". Ca 2+ insertion also expanded the interlayer spacing and further stabilized the interlayer structure of vanadium-ba… Show more
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