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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