Phosphorus-doped hard carbon derived from waste PET bottles as a superior anode material for lithium-ion batteries

Dossym Yeskozha, Aisha Zhanaikhan, Aizhuz Sarsengaliyeva, Yergali Mustafa, Zumabay Bakenov, Aliya Orazalinovna Mukanova, Arailym Nurpeissova

2026

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DOI 10.1039/d6ta00836d

Data confidence 70 medium

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Abstract

Waste PET bottles were upcycled into P-doped hard carbon via one-step H 3 PO 4 pyrolysis. The optimized sample delivered 765 mAh g −1 at 0.2 A g −1 and 531 mAh g −1 at 2 A g −1 , demonstrating PET waste as a promising high-performance anode material.