This technology involves forming a thin film by alternately layering transition metal oxide nanoparticles and monomolecular compounds, then injecting conductive metal particles directly into the film via a sputtering process to reduce internal resistance and improve charge mobility.
While transition metal oxides offer high theoretical capacity, their low electrical conductivity leads to slow charge/discharge rates and stability issues caused by volume expansion during reactions with lithium ions. Conventional methods of mixing with carbon materials are complex, difficult to scale for large areas, and reduce energy density due to increased weight.
This technology uses monomolecular compounds (such as TREN) to anchor transition metal oxide nanoparticles (such as Fe3O4 and MnO2) onto a substrate. After forming the thin film, highly conductive metal particles (such as Pt, Au, and Ag) are introduced into the film via sputtering. This creates electrical pathways and maintains structural stability, effectively enhancing the commercial competitiveness of secondary batteries.
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