
PowerNaP Energy
San Leandro, California, United States
About
PowerNaP Energy develops phosphorus-based anode material for sodium-ion batteries, making batteries from sodium and phosphorus rather than lithium.
The company says it is the only one engineering phosphorus as a sodium-ion anode, and that phosphorus can store up to eight times more charge than conventional hard carbon anodes.
Its target applications include electric vehicles, e-mobility, home batteries and drones. PowerNaP is based in San Leandro, California. CEO Giselle Cheung and CTO Ben Rupert lead the company. Rupert previously led electrolyte development at solid-state battery maker Blue Current. Breakthrough Energy's Explorers program supported its early phosphorus work in 2024.
Location Info
- HQ
- San Leandro, California, United States
North America (1)
- Office
- San Leandro, California, United States
Quick Facts
- Last Updated
- Oct 14, 2026




