Sienza Energy

Sienza Energy, based in El Segundo, California, develops advanced 100% silicon anode batteries with over 1000 Wh/L energy density and rapid charging. Founded in 2017, the company’s sustainable technology enhances performance for electric vehicles, consumer electronics, and energy storage applications.

Company Location

Country:

United States

City:

El Segundo, California

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Company Overview

Sienza Energy, founded in 2017 as a Caltech-incubated company, develops advanced battery technologies specializing in 100% silicon anodes. Based in El Segundo, California, the company enhances battery performance and efficiency for electric vehicles and consumer electronics through high energy density and sustainable manufacturing.

Battery Technology

100% silicon anode technology eliminating graphite; energy density >1000 Wh/L and specific capacity >2942 mAh/g; scalable dry manufacturing process; fast-charging (6C, full charge <10 minutes); advanced heat dissipation and thermal management for safety across EVs, drones, power tools, energy storage systems and aerospace.

Products

Batteries featuring 100% silicon anodes with >1000 Wh/L energy density, >2942 mAh/g capacity, fast-charging capability (6C, full charge <10 minutes), and enhanced thermal management for various applications including electric vehicles, drones, power tools, energy storage systems and aerospace equipment.

Recent Projects

Establishing pilot manufacturing plants to scale silicon anode production and expanding R&D efforts to strengthen position in the electric vehicle sector; specific project details not publicly disclosed.

Investors

Sienza Energy is backed by Dr. Patrick Soon-Shiong, a board member, and Kairos Ventures since its early stages.

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