Entropeak

Its first material, HEO-A1, is designed as a drop-in replacement for graphite that raises energy density. The company says HEO-A1's specific capacity keeps rising with cycling, eventually more than doubling that of graphite after 500 cycles.

The material is made bottom-up as uniform nanoparticles from commercially available raw materials, without silane gas. Entropeak has increased batch yields more than 35-fold. Entropeak Limited is based in Auckland, New Zealand, and also has an office in Miami. Its backers include Bridgewest Ventures, UniServices and Callaghan Innovation, and it is a member of Volta Foundation.