Zeta Energy

Leading the charge

Zeta Energy is commercializing lithium-sulfur batteries.
Standard lithium-ion batteries face limitations in energy density and have complex supply chains. Zeta Energy is developing next-generation lithium-sulfur technology that overcomes both of these problems.

Zeta’s proprietary sulfurized-carbon technology unlocks energy densities unattainable with LFP or NMC chemistries, while avoiding the polysulfide shuttle problem that has previously limited lithium-sulfur batteries. Zeta’s technology also leverages widely abundant and affordable materials, eliminating the use of cobalt, graphite, manganese and nickel, which enables short, simple and stable supply chains.

Who We Are

Zeta Energy HQ in Houston Was Opened in 2022

Zeta’s team combines a deep understanding of electrochemistry with expertise in taking technologies from the lab to market. We are focused on delivering real results, not simply making projections.

Technology

Zeta Energy’s lithium-sulfur batteries use no cobalt, nickel, manganese or graphite. They are based on lithium, carbon and sulfur, which are all widely abundant and economical.

Performance of Our Current Pilot Cells

350 Wh/kg

Energy Density

1C Continuous

Discharge Rate

6.4 Ah

Capacity

<1%
peryear

<1% per year

Self-Discharge

Low Self-Discharge Rate

Due to the stability of our cathode material, our cells have a longer shelf life than standard lithium-ion cells.

High Gravimetric Density

If you replace a 21700 Cylindrical NMC Cell in a single-cell lithium-ion drone with our lithium-sulfur cells, you will get 40% longer flight time at the same cell weight.

Zeta Energy Cathodes

Zeta Energy sulfur-based cathodes are inherently inexpensive, have effective cost-per-energy, use no cobalt, graphite, nickel or metal, reducing cost volatility