Method for manufacturing fluorine compounds for secondary battery cathode materials, fluorine compounds for secondary battery cathode materials, secondary battery cathode materials, and secondary batteries

Method for Manufacturing Fluorine Compounds for Cathode Materials via Single Solid-State Reaction of Fluorine-Containing Organic Compounds

This technology synthesizes high-purity binary or ternary metal fluorides through a single solid-state reaction process without the use of strong acids (HF) by mixing and heating metal precursors with fluorine-containing organic compounds (such as PTFE or PVDF).

Conventional wet precipitation methods rely on hydrofluoric acid (HF), which poses safety and environmental risks. Furthermore, these complex processes are difficult to scale for mass production and have limitations in simultaneously implementing additional properties, such as conductive carbon coating.

By using fluorine-containing polymers like PTFE or PVDF as a fluorine source, this technology involves mixing them with metal precursors and heating the mixture between 450°C and 750°C, making it highly effective for improving the efficiency of the manufacturing process for lithium secondary battery cathode materials.

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Key Features:

• Preparing a fluorine compound precursor for cathode materials by mixing a metal precursor with a fluorine-containing organic compound
• Synthesizing metal fluorides by heating the prepared fluorine compound precursor for cathode materials
• Configuration using either polytetrafluoroethylene or polyvinylidene fluoride as the fluorine-containing organic compound
• Configuration for synthesizing high-purity binary or ternary metal fluorides through a single solid-state reaction process without the use of hydrofluoric acid, a strong acid

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