Zeta Energy announced that it has demonstrated a multilayer 300 Wh/kg pouch cell with up to 20 Ah. Zeta Energy's cells use an innovative lithiated vertically-aligned carbon nanotube anode and a Zeta's patented sulfurized carbon cathode. Zeta Energy is the only lithium-sulfur battery company to have received third-party verification that its technology avoids the polysulfide-shuttle effect.