Independent Evaluation Confirms Breakthrough Performance of BioLargo's Cellinity Battery Technology for Grid-Scale Energy Storage

Rhea-AI Summary

BioLargo (OTCQX:BLGO) has received independent validation from U.S. BESS Corporation confirming breakthrough performance of its Cellinity battery technology for grid-scale energy storage. The evaluation verified impressive specifications including >4.2V open circuit voltage, 120-250°C operating range, >500 Wh/kg energy density, and ~100% charge/discharge efficiency. Key advantages include no thermal runaway risks, domestically sourceable materials, absence of rare earth elements, and full recyclability. The technology addresses critical limitations of current lithium-ion batteries amid rapidly growing demand for grid storage, with U.S. battery storage capacity increasing 66% in 2024. BioLargo is now working on scaling up cell design and manufacturing, while pursuing manufacturing joint ventures for commercialization.

Positive

• Independent validation confirms superior technical specifications including >500 Wh/kg energy density and ~100% charge efficiency
• Technology eliminates thermal runaway risks present in lithium-ion batteries
• Materials are domestically sourceable and fully recyclable without rare earth elements
• Multiple manufacturing joint ventures in development for commercialization
• Addresses growing market demand with U.S. battery storage capacity up 66% in 2024

Negative

• Technology still requires scaling up and commercial-scale testing
• Operating temperature range of 120-250°C may present implementation challenges
• Company trades on OTCQX market rather than major exchange

WESTMINSTER, CALIFORNIA / ACCESS Newswire / June 18, 2025 / BioLargo, Inc. (OTCQX:BLGO), a company that creates and commercializes sustainable technologies to solve tough environmental and cleantech challenges, announced that a third-party evaluation has confirmed key advantages for its Cellinity battery technology's use in grid-scale battery energy storage applications.

The evaluation was conducted by U.S. BESS Corporation (www.usbesscorp.com), an expert provider of advanced energy storage solutions for critical infrastructure applications spanning utilities, defense, microgrids, and heavy industry.

U.S. BESS senior technical staff performed an examination of Cellinity's design and assembly protocols, inspection of testing infrastructure, review of data from test results, and an assessment of methodologies used for performance characterization, concluding that the following performance characteristics exclusive of any auxiliary systems are supported by their observations and are reasonably representative of the current Cellinity cell's demonstrated behavior:

• Open circuit voltage: > 4.2 V

• Operating temperature range: from 120°C to 250°C

• Energy density: > 500 Wh/kg (calculated based on active material)

• Power density: > 500 mW/cm³ (maximum observed value of 1579 W/kg at 230°C)

• Charge capacity: Cell can be charged to 100% of theoretical capacity

• Charge/discharge efficiency: ~100%

• Energy efficiency: 95% at 230°C; 87% at 120°C

• Self-discharge: No measurable self-discharge observed over test durations

• Thermal cycling durability: Performance unaffected after repeated cycling

U.S. BESS Corp further concluded that it is reasonable to claim that a) the cell would not experience any thermal runaway, b) materials of construction are commonly available and can be domestically sourced, c) the cell does not contain any rare earth elements, and d) cell components are fully recyclable.

A Market Ready for Disruption

The global demand for grid-scale energy storage is rapidly growing to meet the rising loads driven by artificial intelligence, decarbonization mandates, and accelerated adoption of renewables. In 2024 alone, the U.S. Energy Information Administration (www.eia.gov) reported a 66% increase in U.S. battery energy storage capacity. While lithium-ion batteries currently dominate the market, they present known challenges: fire risks from thermal runaway, efficiency losses over time, and sourcing constraints related to rare and critical minerals.

BioLargo's Cellinity battery technology (www.biolargoenergy.com) overcomes these limitations by leveraging novel materials and architecture to deliver both exceptional thermal performance and operational efficiencywithout relying on rare earth elements.

Validation Supports Commercial Pathway

The U.S. BESS report concludes: "Based on our inspection and the evidence provided, U.S. BESS finds that the Cellinity Cell demonstrates a sufficient performance profile, with strong indications of high thermal stability, efficiency, energy and power density, and material sustainability, to suggest further investment in testing and commercialization. These attributes position this technology as a potential solution for critical gaps in grid-scale energy storage markets."

Randall Moore, Chief Technology Officer at BioLargo Energy Technologies, Inc., commented, "Our work to scale up the cell design, refine manufacturing techniques, and integrate cells into a functional module for commercial scale testing is underway."

CEO, Dennis P. Calvert commented, "We do not know of any long duration energy storage technology that can match Cellinity's technical claims for cost effective performance and safety. This third-party evaluation is an important piece of the puzzle for our business plan to bring Cellinity to the world through manufacturing joint ventures. We have several of these in development with potential partners and look forward to sharing more intel about those soon."

About U.S. BESS Corp

U.S. BESS Corp is a U.S.-based company that provides energy storage solutions for a wide range of applications, including utilities, industrial needs, microgrids and defense. With decades of combined experience in battery engineering, microgrid deployment, system-level integration, and manufacturing, the company's leadership team is uniquely qualified in the battery energy storage system industry. U.S. BESS is creating the most advanced and secure battery management system and building the largest domestic battery supply in the USA.

U.S. BESS Corp Contact Information

Mark Hagedorn
CEO, U.S. BESS Corp.
503-720-9569

About BioLargo, Inc.

BioLargo, Inc. (OTCQX:BLGO) is a cleantech and life sciences innovator and engineering services solution provider. Our core products address PFAS contamination, achieve advanced water and wastewater treatment, control odor and VOCs, improve air quality, enable energy-efficiency and safe on-site energy storage, and control infections and infectious disease. Our approach is to invent or acquire novel technologies, develop them into product offerings, and extend their commercial reach through licensing and channel partnerships to maximize their impact. See our website at www.BioLargo.com.

BioLargo Contact Information

Dennis P. Calvert
President and CEO, BioLargo, Inc.
888-400-2863

Safe Harbor Act

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include without limitation those about BioLargo's (the "Company") expectations regarding anticipated revenue; and plans for future operations. These statements involve risks and uncertainties, and actual results may differ materially from any future results expressed or implied by the forward-looking statements. Risks and uncertainties include without limitation: the effect of regional economic conditions on the Company's business, including effects on purchasing decisions by consumers and businesses; the ability of the Company to compete in markets that are highly competitive and subject to rapid technological change; the ability of the Company to manage frequent introductions and transitions of products and services, including delivering to the marketplace, and stimulating customer demand for, new products, services, and technological innovations on a timely basis; the dependency of the Company on the performance of distributors of the Company's products. More information on these risks and other potential factors that could affect the Company's business and financial results is included in the Company's filings with the SEC, including in the "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of the Company's most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings. The Company assumes no obligation to update any forward-looking statements or information, which speak as of their respective dates.

SOURCE: BioLargo, Inc

View the original press release on ACCESS Newswire

FAQ

What are the key performance metrics of BioLargo's Cellinity battery technology?

Cellinity features >4.2V open circuit voltage, 120-250°C operating range, >500 Wh/kg energy density, >500 mW/cm3 power density, and ~100% charge/discharge efficiency with 95% energy efficiency at 230°C.

How does BLGO's Cellinity technology differ from traditional lithium-ion batteries?

Cellinity eliminates thermal runaway risks, doesn't use rare earth elements, uses domestically sourceable materials, is fully recyclable, and maintains high efficiency without degradation over time.

What is the market opportunity for BioLargo's Cellinity battery technology?

The grid-scale energy storage market is rapidly growing, with U.S. battery storage capacity increasing 66% in 2024, driven by AI demands, decarbonization mandates, and renewable energy adoption.

What is BioLargo's commercialization strategy for Cellinity?

BioLargo is scaling up cell design and refining manufacturing techniques while pursuing manufacturing joint ventures with potential partners for commercialization.

Who validated BioLargo's Cellinity battery technology?

U.S. BESS Corporation, an expert provider of advanced energy storage solutions for utilities, defense, microgrids, and heavy industry, conducted the independent evaluation.