“Enevate is using a different technical approach for silicon anodes that is truly unique and innovative to deliver both ultrafast charging and high energy density.  I’m impressed that their technology and process is practical, highly manufacturable, and has the potential to be sufficiently inexpensive for high volume mobile devices.”

               -Dr. John Goodenough, inventor of the modern Li-ion battery
                                                                              Recipient of the US National Medal of Science, Enrico Fermi award, and Laureate of the Japan Prize

Enevate has created a new Silicon-dominant composite anode material and process that give a leap in performance while maximizing the use of existing installed Li-ion cell production capabilities.  By riding on top of the existing Li-ion ecosystem and its roadmap, we can provide a massive boost in energy density by size and weight. Add to this the “fab-light” process innovations and you have a technology that gets to market quickly and capital efficiently.  Unlike graphite-dominant anodes that only include a small percentage of silicon-containing additive, Enevate is manufacturing silicon-dominant anodes as a proprietary active material film with over 70 percent silicon content.

Enevate’s innovations, supported by 25 issued and pending patents, allows for a silicon composite anode with a gravimetric energy density of about 2800 mAh/g and very high initial Coulombic efficiencies of 93 percent for the anode and 90 percent for full cells, while controlling the well-known issues associated with volumetric expansion and contraction. The composite is comprised of carbon as a conductive matrix, silicon as the main active material, and silicon-carbide as a nanometer-scale layer protecting the silicon surface.  In addition, Enevate technology is compatible with current high-volume manufacturing processes leading to lower costs and providing the ability for use in existing form-factors.

Enevate’s HD-Energy® Technology has sufficient headroom to create cells with a core volumetric energy density up to and exceeding 1000 Wh/L. These have already been demonstrated in the R&D lab. Furthermore, this technology has exceptionally good gravimetric energy density of up to 300 Wh/kg, making it an excellent fit for mobile applications that require small size and light weight.

The new Silicon-dominant monolithic composite anode combined with the overall battery cell architecture enables high volumetric energy density, structural integrity, and electrical conductivity.

Enevate’s HD-Energy® material structure, SEM photo
Ultra-thin HD-Energy anode cross section, SEM photo