In the present work, an eco-friendly and low-cost lithium-ion full cell assembled using Mn₃O₄-mesoporous (MnMC) composite anode and LiFePO₄ cathode (LFP) is investigated for energy storage applications. Hydrothermally synthesized Mn₃O₄ nanoflakes with a length of 40-50 nm are physically mixed with mesoporous carbon (MC) to obtain MnMC nanocomposite, and sol-gel method in the presence of citric acid is employed to synthesize the cathode material LiFePO₄. The structural and morphological details of LFP cathode are investigated using X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) techniques and the electrochemical performance is evaluated by assembling half cells with lithium metal as the counter electrode. The MnMC nanocomposite is pre-lithiated and combined with LFP cathode for the full lithium ion cell with a cathode limiting capacity. The LFP-MnMC full cells exhibit reversible capacity of the LFP cathode and show good cycling stability with a capacity retention of 66% and the average Coulombic efficiency is found to be 98% after 100 cycles.

Date Published: 9 September 2019
PDF: 6 pages
Proc. SPIE 11085, Low-Dimensional Materials and Devices 2019, 110851F (9 September 2019); doi: 10.1117/12.2529192

Published in SPIE Proceedings Vol. 11085:
Low-Dimensional Materials and Devices 2019
Nobuhiko P. Kobayashi; A. Alec Talin; Albert V. Davydov, Editor(s)