Composite Electrode Particles for Stable High-Capacitance MLCCs

The patent applies composite materials by creating a multi-layered composite particle structure consisting of a conductive core, conductive oxide layer, and glass-containing coating. This composite structure combines the advantages of different materials: the conductive core provides electrical conductivity, the oxide layer prevents oxidation and maintains stability, and the glass coating ensures dispersibility and prevents agglomeration. This resolves the contradiction by achieving improved reliability through material composition rather than simplifying the structure.

The patent implements the nesting principle by creating a concentric multi-layered particle structure where the conductive oxide layer surrounds the conductive core, and the glass-containing coating surrounds the oxide layer. This nested configuration allows each layer to perform its specific function while being integrated into a single particle, thereby improving reliability without requiring separate application steps for each functional layer.

The patent applies local quality by creating a glass-containing coating layer with specific properties (controlled thickness of 1-50 nm and glass content of 0.01-20 wt%) that surrounds each particle. This localized glass layer provides dispersibility and prevents agglomeration at the particle surface level, while the overall manufacturing process remains simple. Each particle is individually coated with the glass layer, ensuring uniform dispersibility throughout the electrode layer.

The patent utilizes parameter changes by controlling the thickness of the glass-containing coating (1-50 nm) and the glass content within specific ranges (0.01-20 wt%). By optimizing these parameters, the glass layer provides sufficient dispersibility and prevents agglomeration without compromising ease of manufacture. The controlled parameter ranges ensure that the glass frit remains dispersed while maintaining manufacturing simplicity.

The patent implements preliminary action by pre-coating the conductive core with the conductive oxide layer and glass-containing coating before incorporating the composite particles into the electrode layers. This pre-prepared composite structure ensures that when the electrode layers are thinned for ultra-miniaturization, the particles maintain their structural integrity and stability. The protective layers are already in place to prevent degradation during the thinning process and subsequent handling.

The patent applies composite materials to maintain structural stability in thinned electrode layers by using composite particles with multiple functional layers. The conductive core provides electrical conductivity, the oxide layer prevents oxidation and maintains structural integrity, and the glass coating ensures dispersibility and mechanical stability. This composite structure allows the electrode layers to be thinner while maintaining reliability, as each particle is self-supported with protective layers.