Leading the charge.

Zeta Energy has created the world's first and only successful lithium-sulfur battery! Offering three times the energy density of today's lithium-ion batteries and at less than half the price per kWh, Zeta Energy's lithium-sulfur batteries are poised to change the way we think about energy storage. Zeta Energy's batteries use no cobalt, no graphite, no nickel, or manganese, and have a far lower carbon footprint than any battery on the market today. Join us in building a more sustainable future!

Our Technology

Zeta has reinvented both the anode and cathode with revolutionary improvements in all three critical areas:




Zeta Energy's lithium-sulfur battery technology has been rigorously tested and has shown consistently better performance than existing lithium ion batteries. Even more importantly, 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.
450 Wh/kg
Energy Density
Up to 10C
Charge Rate
2000 Cycles
Full Charge/Discharge Cycles
<5% after one year

Zeta Energy Anodes

Zeta Energy's 3D structured metallic anodes are made with lithiated vertically-aligned carbon nanotubes. These anodes have higher capacity than any current or advanced anode technology...and they are dendrite free!
Figure: Vertically-aligned carbon nanotubes, double-sided on copper foil, 2022
Photo of double sided anode with vertically-aligned carbon nanontubes used in Zeta Energy lithium-sulfur batteriesAnode Gravimetric Density

Higher Gravimetric Density

Zeta Energy anodes outperform other current and advanced anode technologies, with significantly higher gravimetric density than other major anode chemistries and none of the dendrites that typically form on pure lithium metal anodes.

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 and dependency on foreign nations.

Zeta's cathode is based on a sulfurized carbon material that offers high stability and superior sulfur content, outperforming current metal-based cathode materials.


Zeta Energy lithium-sulfur batteries are sustainably sourced and produced. Zeta Energy's raw materials and production processes give it one of the industry's lowest carbon footprints. Their higher density, lower cost, and better safety profile than today’s batteries will enable breakthroughs in electrification that help us address climate change and democratize energy production.