XPS spectra of graphite anode and LiFePO4 cathode harvested from the CFCNT/Gr||LFP/CFCNT full cell after 1st discharge and post 150 cycles.Durability Fault AnalysisFlame Retardance TestNail puncture safety test
Battery recycling
Electrochemical performance of full cells with pristine and regenerated components for (a) CV profiles, (b) galvanostatic charge–discharge curves, and (c) cycling stability and coulombic efficiency over 150 cycles at C/8, demonstrating comparable electrochemical behaviour and capacity retention
Operando XRF
Operando XRF of NMC cathode showing Mn, Co, and Ni Kα/Kβ peaks from 3.3–4.4 V (charge) and back to 3.3 V (discharge). Left: individual spectra; right: contour map showing reversible Ni oxidation–reduction, while Mn and Co remain stable.