Composite Solid Electrolyte Preventing Self-Discharge

The patent uses a composite structure combining solid electrolyte particles with molten salt particles. The solid electrolyte provides electrical insulation to prevent self-discharge, while the molten salt phase provides high ion conductivity. This composite material approach resolves the contradiction by integrating two materials with complementary properties into a single functional electrolyte system.

The patent changes the physical state parameter of the electrolyte by incorporating molten salt particles that melt at operating temperature. At room temperature, the electrolyte remains solid for insulation, but at operating temperature, the molten salt phase provides liquid-like ion conductivity. This parameter change allows the electrolyte to exhibit different properties at different temperatures, resolving the contradiction between insulation and conductivity.

Instead of using conventional electrically insulating binders, the patent employs a composite electrolyte where molten salt particles are suspended in a solid electrolyte matrix. This composite structure provides both operational stability (through the solid matrix) and low internal resistance (through the molten salt phase), eliminating the need for additional insulating binders that would increase resistance.

The patent replaces expensive and performance-limiting insulating binders with a self-contained composite electrolyte system. The molten salt particles themselves serve the dual function of providing ion conductivity and being contained by the solid electrolyte matrix, eliminating the need for separate binder materials and reducing overall system complexity and cost.

The patent enables the electrolyte to self-organize into a functional composite structure through simple mixing and molding processes. The solid electrolyte particles and molten salt particles naturally form a stable composite where the molten salt is contained within the solid matrix, eliminating the need for complex sintering, hot pressing, or hot isostatic pressing procedures required for traditional solid electrolyte disks.

The patent changes the manufacturing approach from high-temperature sintering processes to low-temperature mixing and molding. By utilizing the phase transition properties of molten salt, the electrolyte can be processed in a simple mixed-powder state and then activated through heating, dramatically simplifying the manufacturing process while maintaining high ion conductivity.

The patent creates a composite electrolyte where molten salt particles (providing high ion conductivity) are suspended within a solid electrolyte matrix (providing electrical insulation). This composite structure allows the system to simultaneously achieve the high ion conductivity of molten salt and the electrical insulation of solid electrolyte, resolving the contradiction between these two opposing properties.

The patent applies local quality by assigning different functional properties to different phases within the electrolyte. The molten salt particles provide localized high ion conductivity pathways, while the solid electrolyte matrix provides localized electrical insulation. This spatial differentiation of properties allows the overall system to achieve both high conductivity and good insulation simultaneously.