Ca-Mo-O-H Based Electrode Composition for Calcium-Ion Batteries and Calcium-Ion Battery Comprising the Same

Cathode for Calcium-Ion Batteries Using Orthorhombic Layered Hydrated Molybdenum Oxide

This technology utilizes CaxMoO3·yH2O (0

Conventional cathode materials for lithium-ion batteries, such as V2O5, MoO3, and Mo6S8, have struggled with poor calcium-ion mobility when applied to calcium-ion batteries. This has resulted in either the inability to operate as a battery or significantly limited performance.

This technology features an orthorhombic layered CaxMoO3·yH2O structure designed to allow for the reversible movement of calcium ions. The active material is produced through a process of reacting molybdenum oxide, dithionite, and molybdate, followed by a secondary reaction with a calcium compound. Applicable to divalent ion-based post-lithium battery research and cost-effective energy storage system cathodes, this design approach utilizes interlayer moisture to expand the pathways for calcium-ion transport.

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Key Features:

• Cathode composition for calcium-ion batteries comprising CaxMoO3·yH2O, where 0 < x < 1 and 0 < y < 1
• Step of preparing a reactant by mixing and reacting molybdenum oxide, dithionite, and molybdate
• Step of preparing CaxMoO3·yH2O by reacting the obtained reactant with a salt containing alkali metal cations and a calcium compound
• Cathode formed by applying an active material, consisting of a mixture of CaxMoO3·yH2O, a binder, and a conductive agent, onto a current collector

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