One Step Closer To The Compostable EV Battery Of The Future

The article discusses a significant advancement in sustainable energy storage with the introduction of a compostable “paper battery” by Singapore-based startup Flint. This new battery technology leverages cellulose fibers—plant-based materials known for their renewable and environmentally friendly properties—to replace toxic and petrochemical components typically used in electric vehicle (EV) batteries. Cellulose has been recognized for its ability to improve battery safety, performance, and durability, acting as a hybrid separator that enhances ion transfer between the anode and cathode. While previous research has highlighted cellulose’s potential, Flint aims to bring this concept closer to commercial viability with a scalable, cost-effective, and eco-friendly battery solution. Since its technology preview in late 2023, Flint has rapidly progressed, securing seed funding from international angel investors and AI-focused venture capital, as well as support from the Singapore government and industry accelerators like Shell’s Innovation Accelerator. The company showcased its battery at CES 2025, winning a “Best of CES Sustainability Award.” Flint claims its