@article{Xu2025, 
author = {Jiahui Xu and Weng-Lam Wong and Hao Du and Yuqiong Kang and Yun Zhao and Bo Lan and Zhenyu Guo and Maria-Magdalena Titirici and Feiyu Kang and Baohua Li},
title = {Upcycling the cathodes of spent lithium ion batteries into high-performance cathodes},
year = {2025},
journal = {Nano Research Energy},
volume = {4},
pages = {e9120174},
keywords = {recycling, spent lithium ion battery, cathode upcycling, cathode regeneration},
url = {https://www.sciopen.com/article/10.26599/NRE.2025.9120174},
doi = {10.26599/NRE.2025.9120174},
abstract = {Recycling spent lithium-ion batteries (LIBs) is crucial for environmental protection and sustainability. Currently, the main methods for recycling spent LIBs include element extraction and material regeneration. Materials upcycling is a complementary strategy aimed at transforming existing materials into next-generation high-performance materials. This review summarizes recent advancements in upcycling cathode materials from spent LIBs into high-performance cathode. We begin by outlining the development of cathode materials and exploiting how material upcycling can meet the needs of future battery technologies. Next, we introduce the concept and historical evolution of cathode material upcycling and provide a detailed summary of strategies such as doping, coating, and the transformation between different cathode materials. Finally, we discuss the challenges of cathode upcycling and offer guidance for future research directions.}
}