Industry Value Chain

Natron Energy Founded in 2012, Natron Energy commercialized a sodium-ion battery, based on Prussian Blue analogue chemistry, for data center uninterruptible power supply UPS) applications. Citing insufficient funding, Natron permanently shuttered its operations in September 2025, including its R&D facility in California, pilot plant in Michigan, and Gigafactory plans in North Carolina. Natronʼs assets have since been liquidated via ABC. Observations on Natron's Approach:

Natron pursued full vertical integration, from controlling design and process from anode/cathode synthesis up to BlueRack system engineering which proved technically and financially challenging.

Key Product Features:

185 W/L 2-minute power density at system-level

Cell-level safety UL9540A testing verified no thermal runaway)

1C cycle life of 50,000 cycles and a high-power service life of 5 years

Funding: Natron received $370M in total funding from investors including DOE ARPAE, Chevron Energy Ventures, Intel Capital, Khosla Ventures, Mercuria, ND Capital, and United Airlines.

Source: Natron Energy, BlueRack 250, Tracxn, BatteryTechOnline

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