Our Technology

Image by Second Bay Studios/Harvard SEAS

Adden Energy’s unique battery technology originated from several critical discoveries made by a research group at Harvard’s John A. Paulson School of Engineering and Applied Sciences. Beginning with the experimental and theoretical discovery of the constrained ensemble description of battery thermodynamics and kinetics (1, 2, 3, 4), this group developed a new field of mechanical constriction design of battery materials (1, 2) and devices (3, 4).

By carefully controlling the mechano-electrochemical environment of the solid-state batteries, this new design approach drastically improves the stability of the solid-electrolyte and the battery system. Through further critical development of this framework, the team has created an innovative multi-electrolyte-layer separator with a dynamic stability design (5, 6, 9) and new machine learning and high-throughput computational chemistry algorithms which have predicted and can design more novel solid-electrolytes with improved performance (7, 8, 9).

Adden Energy’s technical advances have spanned materials design and synthesis, in-house solid-electrolyte development, and novel cell designs. These combined material and device innovations have enabled the demonstration of the technology with high-current-density lithium metal anodes as well as high voltage cathodes. Adden Energy’s technology roadmap is focused on scaling this remarkable performance into commercially acceptable Amp-hour sized cells.