Extending Battery Cycle Life via Recovery of Reversible Lithium Losses

Abstract

Extending the cycle life of Li-ion batteries is critical for enhancing their service duration, economic value, and environmental sustainability. However, the realization of long-life batteries is hindered by heterogeneous degradation and irreversible capacity loss. To address these challenges, a novel method is urgently needed that can recover reversible lithium loss and extend battery cycle life. In this work, we proposed a real-time cycle life extension method that integrates early detection of lithium plating with dynamic modulation of the charging protocol. This approach enables the timely recovery of reversible plated lithium, thereby mitigating active lithium loss, ultimately achieving a significant improvement in capacity retention and effectively extending battery cycle life. The proposed method not only addresses the critical issue of reversible lithium loss but also demonstrates promising application prospects in extending battery cycle life.