Flint's Innovative Cellulose-Based Paper Batteries Enter Production Stage

Flint Labs, a pioneering deep tech firm based in Singapore, has officially transitioned its groundbreaking paper battery technology from development to full-scale production. Known for its commitment to sustainability, the company focuses on creating cellulose-based, biodegradable batteries that are free from harmful PFAS chemicals, aiming to change the landscape of energy storage technology.

A Milestone in Battery Production

On January 2, 2026, Flint announced that it has begun manufacturing its innovative batteries, marking a significant step forward in its mission to produce safer, environmentally friendly energy solutions. The company’s new batteries are designed to be rechargeable, non-flammable, and non-toxic, ensuring that they can be used safely in a variety of applications. Safety features and quality control measures are central to their design, making them viable for customer pilot programs and early commercial integration.

CEO Carlo Charles emphasized the importance of moving from lab-scale prototypes to manufactured products, stating, "Reinventing batteries isn't only about chemistry; it's about building something you can manufacture." This shift not only validates Flint's technology but also allows for real-device applications that promise to be produced in significant volumes.

Environmentally Friendly Manufacturing

Flint's manufacturing process is particularly noteworthy. Utilizing water-based methods, the company has established a facility dedicated to producing its cellulose-based battery architecture while minimizing reliance on traditional materials like lithium, cobalt, and lead. This unique approach supports the reduction of carbon emissions and enhances the options available for battery disposal at the end of their life cycle. The new 8,000+ square foot facility is a center for piloting innovative processes and scaling production, helping Flint solidify its role in the sustainable battery market.

Recognizing Momentum and Partnerships

Flint's entry into production follows a year of notable achievements and recognition. Notably, their technology received the Best of CES Sustainability Award at CES 2025, which helped elevate the company’s visibility in the global market
During 2025, Flint's technology gained traction through collaborations with major companies such as Logitech, Amazon, and Dassault Systèmes. These partnerships are pivotal as they steer pilot projects that emphasize the practical applications of Flint’s battery technology.

Logitech has included Flint's batteries in an active pilot program for select devices, showcasing the integration of this sustainable technology in real-world scenarios. Amazon’s involvement, facilitated through the MIT Climate Tech Accelerator, allows Flint to explore decarbonization strategies for popular consumer devices like Kindle and Fire TV, signaling the broad applicability of this technology across various sectors.

Funding and Future Growth

In line with its strategic growth initiatives, Flint raised $2 million in a pre-Series A funding round in 2025, bolstered by contributions from angel investors and the company’s co-founders. This infusion of capital is crucial as Flint continues to expand its operational scale and technological capabilities.

Upcoming Challenges and Expansions

As Flint prepares for CES 2026, where it plans to unveil its two initial commercial paper battery products, the company is also in discussions for expansion. These negotiations involve partnerships with some of the world's largest contract manufacturers to bolster their production capacity in Europe. This move will enhance their ability to diversify supply chains and meet the growing demand for sustainable battery solutions.

In parallel, Flint is advancing research into solid-state versions of its cellulose-based chemistry, aiming to target sectors currently dominated by conventional batteries. These new developments could revolutionize the energy storage market by providing higher-density rechargeable batteries that could displace older technologies.

Collaborate with Flint

With production underway, Flint is eager to engage with partners interested in piloting, purchasing, or co-developing these cutting-edge batteries. Initial production phases will focus on pilot programs and commercial rollouts, setting the stage for a broader market presence as they scale operations.

Flint embodies a forward-thinking approach to energy storage, merging innovative technology with sustainable practices. For those interested in being part of this transformation in energy solutions, visiting flintlabs.com or connecting with Flint on LinkedIn can provide more insights into ongoing projects and opportunities for collaboration.

This marks an exciting era for sustainable technology, as Flint's developments stand to significantly influence future energy storage and present practical, eco-conscious solutions for industries and consumers alike.