Reversible high-capacity Si nanocomposite anodes for lithium-ion batteries enabled by molecular layer deposition.

Piper, Daniela Molina; Travis, Jonathan J; Young, Matthias; Son, Seoung-Bum; Kim, Seul Cham; Oh, Kyu Hwan; George, Steven M; Ban, Chunmei et al. · Adv Mater · 2014

basic_science · Level V

Where this comes from

Abstract

The molecular-layer deposition of a flexible coating onto Si electrodes produces high-capacity Si nanocomposite anodes. Using a reaction cascade based on inorganic trimethylaluminum and organic glycerol precursors, conventional nano-Si electrodes undergo surface modifications, resulting in anodes that can be cycled over 100 times with capacities of nearly 900 mA h g(-1) and Coulombic efficiencies in excess of 99%.