This technology involves mixing Ag or Au-based metal nitrate (Mx(NO3)y) additives into a lithium powder slurry. By inducing an alloying reaction with lithium, it lowers nucleation energy and forms a stable, Li3N-rich surface film, thereby promoting uniform lithium electrodeposition.
Conventional lithium foils have limitations in scaling up to large areas and suffer from lithium dendrite growth during repeated charge-discharge cycles. This leads to internal short circuits and electrolyte depletion, which significantly reduces battery lifespan.
This technology creates electrodes using a slurry containing lithium powder, a binder, and Mx(NO3)y additives. The Ag or Au provides active sites through lithium-friendly alloying reactions, while nitrate ions react with lithium to form a Li3N-rich film with excellent ionic conductivity and mechanical strength. Applicable to lithium metal secondary battery anodes, large-area pouch cells, and roll-to-roll coating-based mass production lines, it enables the uniform fabrication of large-area lithium electrodes through slurry coating alone, eliminating the need for foil rolling.
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