This technology synthesizes an orthorhombic Ba1+xV6O16 (0.1 < x < 2) compound capable of reversible barium ion intercalation and deintercalation by performing electrochemical ion exchange on a NaV3O8 (NVO) precursor in an aqueous barium salt solution using chronoamperometry.
Conventional lithium and sodium secondary batteries have faced limitations regarding resource scarcity, ion size, and potential characteristics. In particular, there have been no reported cases of electrode materials for secondary batteries based on barium ions, leaving a gap in the development of related materials.
This technology involves manufacturing a structurally stable Ba1+xV6O16 material through an electrochemical synthesis method, in which an electrode coated with NaV3O8 powder is immersed in an aqueous Ba salt solution and subjected to a voltage of 0.6–0.8V for 20–30 hours, and then utilizing this as a cathode active material for barium-ion batteries. It has high utility as a foundational material for pioneering new battery chemistries without the burden of scarce resources, as it can be applied to research on multivalent ion-based next-generation secondary batteries, alternative battery platforms that reduce reliance on lithium, and the development of vanadium-based cathode materials.
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