BioLargo, Inc. (OTCQX:BLGO) is making strides in the energy storage sector with its Cellinity battery technology, designed for grid-scale applications. A recent independent evaluation by U.S. BESS Corporation, a specialist in advanced energy storage solutions, has confirmed several key performance advantages of Cellinity cells, supporting BioLargo’s commercial ambitions in a rapidly evolving market.
U.S. BESS conducted a thorough review of Cellinity’s design, manufacturing protocols, testing infrastructure, and performance data. Their findings highlight the battery’s strong technical profile, including an open circuit voltage exceeding 4.2 volts and an operating temperature range from 120°C to 250°C. Notably, the Cellinity battery demonstrated an energy density greater than 500 watt-hours per kilogram based on active material, and a power density exceeding 500 milliwatts per cubic centimeter, with a peak observed power density of 1,579 watts per kilogram at 230°C.
The battery can be charged to 100% of its theoretical capacity with nearly perfect charge/discharge efficiency, around 100%, and energy efficiency measured at 95% at 230°C and 87% at 120°C. The technology also showed no measurable self-discharge over the test period and maintained performance after repeated thermal cycling, indicating strong durability under demanding conditions.
Beyond performance, U.S. BESS emphasized the safety and sustainability aspects of Cellinity’s design. Their assessment concluded that the battery cells are unlikely to experience thermal runaway, a significant risk in many current battery technologies. The materials used are commonly available, domestically sourced, free of rare earth elements, and fully recyclable. These attributes address critical concerns in the energy storage industry related to supply chain constraints and environmental impact.
The demand for grid-scale energy storage is growing rapidly, driven by increasing electricity loads from artificial intelligence, decarbonization efforts, and the accelerated integration of renewable energy sources. In 2024, the U.S. Energy Information Administration reported a 66% increase in U.S. battery energy storage capacity. While lithium-ion batteries currently dominate the market, their challenges, such as fire risk from thermal runaway, efficiency degradation over time, and reliance on scarce minerals, leave room for alternative technologies like Cellinity to gain traction.
BioLargo’s Cellinity technology leverages novel materials and a unique architecture to overcome these limitations, delivering high thermal stability and operational efficiency without depending on rare earth elements. This positions the company to address critical gaps in the grid-scale energy storage market.
The U.S. BESS report concluded that Cellinity’s performance profile and material sustainability justify further investment in testing and commercialization. The report stated that the technology shows strong potential to meet the needs of critical infrastructure applications, including utilities, defense, microgrids, and heavy industry.
BioLargo’s Chief Technology Officer, Randall Moore, noted that efforts are ongoing to scale up the cell design, improve manufacturing techniques, and assemble cells into functional modules for commercial-scale testing. CEO Dennis P. Calvert added that Cellinity’s technical claims for cost-effective performance and safety are unmatched among long-duration energy storage solutions. He emphasized that the third-party evaluation is a key milestone supporting BioLargo’s strategy to bring the technology to market through manufacturing joint ventures, several of which are currently in development.
U.S. BESS Corporation brings decades of experience in battery engineering, system integration, and manufacturing. The company is focused on creating advanced, secure battery management systems and building a robust domestic battery supply chain in the United States.
BioLargo, Inc. is a cleantech innovator focused on technologies that address environmental challenges, including advanced water treatment, odor control, air quality improvement, and safe energy storage. The company develops and commercializes novel technologies through licensing and partnerships to maximize their impact.
With the energy storage market expanding rapidly and the limitations of existing lithium-ion solutions becoming more apparent, BioLargo’s Cellinity battery technology is able to offer a compelling alternative for grid-scale applications. The recent independent validation by U.S. BESS strengthens the company’s case as it moves toward commercial deployment.
