Lithium Metal Battery Solutions

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 – $…

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Description

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
  • 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 graphene 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

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