AmpliSI Pre-Seed · $3M raised · (2026)

AmpliSi is a UK-based advanced materials company that develops proprietary porous silicon anode materials for next-generation lithium-ion batteries. The company's technology aims to replace traditional graphite anodes, offering significantly higher energy density and improved charging performance. AmpliSi utilizes a novel low-temperature, silane-free magnesiothermic process to convert abundant silica into porous silicon, addressing challenges related to cost, scalability, and environmental impact in silicon anode production.