Aquion Energy

Aquion Energy. It was a manufacturer of grid-scale and residential battery systems, founded in 2008 by Carnegie Mellon University professor Jay Whitacre. The company developed a unique aqueous hybrid ion chemistry, positioning itself as a provider of safe, sustainable, and cost-effective storage solutions. After initial commercial success and significant investment, it filed for bankruptcy in 2017, with its assets later acquired and the technology relaunched under new ownership.

History

The company originated from research conducted at Carnegie Mellon University by materials science expert Jay Whitacre, who sought to create a low-cost, environmentally benign battery. Following its 2008 founding, it secured early-stage funding from prominent investors like Kleiner Perkins and the Foundation for a Sustainable Future. A major milestone was achieved in 2014 with the opening of its first high-volume manufacturing facility in Mount Pleasant, Pennsylvania, near Pittsburgh. This expansion was supported by capital from Bill Gates, the Yung family, and Nick Pritzker, among others. The company aimed to compete in the growing market for Renewable energy integration, but faced intense competition from established Lithium-ion battery manufacturers like LG Chem and Tesla Energy.

Technology

The core innovation was the Aqueous Hybrid Ion battery, which utilized a sodium-ion chemistry with a saltwater Electrolyte. This design employed abundant materials including Manganese oxide for the Cathode, Carbon for the Anode, and a Polyvinyl alcohol separator. The Electrochemical cell operated on the principle of Ion shuttling between electrodes in a neutral pH Aqueous solution. Key advantages over conventional lithium-ion systems included inherent non-flammability, eliminating risks of Thermal runaway, and the use of nontoxic, readily available materials. The technology was particularly suited for long-duration, stationary applications requiring daily deep-discharge cycles.

Products and applications

The primary product line consisted of modular SALT battery stacks, which could be aggregated into larger packs for diverse applications. These systems were deployed for off-grid and Microgrid power systems, often paired with solar photovoltaic arrays in locations ranging from remote Hawaiian communities to facilities managed by the National Renewable Energy Laboratory. The batteries provided time-shifting for Renewable energy, enabling solar power generated during the day to be used at night. Other use cases included backup power for critical infrastructure and supporting Voltage regulation on weaker grid networks in developing regions.

Financial and corporate developments

The company raised over $190 million through multiple funding rounds from a consortium of investors including Kleiner Perkins, Bill Gates, and Shell Ventures. Despite this, it encountered severe financial difficulties due to manufacturing challenges, slower-than-expected market adoption, and pricing pressure from lithium-ion competitors. In March 2017, it filed for Chapter 11 bankruptcy protection in the United States District Court for the District of Delaware. Its intellectual property and manufacturing assets were subsequently acquired by Juline-Titans LLC, a consortium led by Chinese entrepreneur Yung and Brinco. The technology was later revived under the new corporate entity Ascend Elements, which shifted focus to advanced battery materials.

Environmental impact and recognition

The company's technology was distinguished by its emphasis on sustainability and circular economy principles. The batteries were manufactured using nontoxic materials and a water-based electrolyte, presenting a markedly lower environmental footprint compared to systems using Cobalt or Vanadium. This approach earned significant recognition, including the 2015 Wall Street Journal Technology Innovation Award. Furthermore, the company was a finalist for the prestigious Zayed Future Energy Prize, and its founder, Jay Whitacre, received the Lemelson–MIT Prize for his inventive work. The chemistry was designed for easier Recycling and end-of-life management, aligning with principles of Green chemistry.