Penn State Converts PET to Graphite
Analysis based on 10 articles · First reported Jun 26, 2026 · Last updated Jun 30, 2026
This technological breakthrough by Pennsylvania State University could significantly impact the battery and recycling industries by providing a sustainable source of high-quality graphite, potentially reducing reliance on natural graphite mining and mitigating plastic waste. It could also lead to lower production costs for lithium-ion batteries, benefiting electric vehicle and consumer electronics markets.
Researchers at Pennsylvania State University, led by Shakshi Sekar, have developed a novel method to convert waste polyethylene terephthalate (PET) plastic into high-quality synthetic graphite. This PET-derived graphite exhibits a more ordered crystal structure than commercial natural graphite, making it highly suitable for use as an anode material in lithium-ion batteries for electric vehicles, smartphones, and energy storage systems. The process involves combining shredded PET plastic with a small amount of graphene oxide and heating it, avoiding the use of metal catalysts that can introduce impurities. This innovation addresses both the growing demand for battery-grade graphite, classified as a critical mineral by the United States — United States Department of Energy, and the global challenge of plastic waste, as much of the PET plastic collected for recycling is currently downcycled or sent to landfills. The research, supported by the United States — National Science Foundation, offers a promising pathway for sustainable manufacturing and a shift in how plastic waste is viewed, transforming it into a valuable resource for clean energy technologies.
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