Lithium Metal Battery Solutions

Opportunity

  • Lithium-ion batteries are currently used in the electric vehicles being produced today

Current EV batteries are:

Fire and Explosion-Prone

Expensive

($150 - $175 / kWh)

Low Specific Energy

(150 – 250 Wh/kg, cell level)

Slow to Charge

(2 – 7 hours)

Large and Heavy

  • US Department of Energy claims EV must reduce the battery cost to <$100 kWh without increasing weight to be competitive with ICE vehicles
  • Currently in discussions with global battery manufacturer and end users
  • Exploring potential partnering and / or licensing opportunities

G3 Value Proposition

  • Lithium metal batteries use a lithium metal foil in place of lithium intercalation compounds (e.g. graphite) in the anode
  • By using graphene in lithium metal batteries, G3 is able to solve all of these problems with its batteries, encompassing the below properties:

Lithium Metal Anode Protection

(Prevents dendrite formation; thus preventing fires and dead lithium particles)

  • Dendrites form on traditional lithium metal batteries, causing internal shorting and interfacial instability to fire hazards and isolated, inactive lithium particles
  • Addition of grapheme composite-based protection layer on the lithium metal foil surface
  • Can be applied to all rechargeable batteries with a lithium metal anode (e.g. all solid-state lithium batteries, lithium-sulfur batteries and lithium-air batteries)

G3-Fireshield™ Electrolyte

(Performance of a liquid with safety of a solid, significantly reduces fire risk)

  • Solid state batteries use a solid electrolyte to replace the liquid electrolyte and are regarded as safer than current liquid electrolytes being used
  • However, they have not been perfected yet
  • G3 implementation of Fireshield™ electrolyte has the safety of the solid state

Lithium-Metal Anode Plus Advanced Cathode Materials

(High energy density batteries at low cost)

  • Using advanced cathode materials such as NMC811 or sulfur improves the energy density greatly above the current
  • Lithium-sulfur and lithium-selenium batteries could be improved to have >350 Wh/kg cell level, or an 85% improvement over current battery KPI
  • Able to keep cost <$100 / kWh

Fast Chargeable Batteries (Under Development)

(5 – 15 minutes)

  • Ability to address all issues with recharging traditional lithium batteries
  • Able to keep charging rate constant at low ambient temperatures, preventing lithium-plating at high charging rates and improving lithium ion diffusion rates in the anode and cathode