INORGANIC RICH SEI GOVERNED BY LIDFOB FOR DENSE LITHIUM METAL PLATING ON ANODE FREE LITHIUM METAL BATTERIES

• Main Author: Hanif Hawari, Naufal
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70283
• Institution: Institut Teknologi Bandung

The use of lithium-ion batteries (LIBs) has been proposed as a way to transition to a net zero carbon economy. However, the capacity of these batteries is limited by the use of commercial graphite in the anode. One solution is to use anode-free lith-ium metal batteries (AFLMBs), which do not have any active material in the anode and only use the cathode as a lithium reservoir. This could lead to significantly higher energy density in LIBs cells as the Li is directly plated and stripped on top of the negative current collector during the charge and discharge of the cell. How-ever, the intrinsic low redox potential of Li can lead to unstable solid-electrolyte interphase (SEI) layers, which can reduce the coulombic efficiency of the cell. In this work, researchers used LiDFOB salt in the electrolyte to create a stable and inorganic-rich SEI layer in NMC/Cu AFLMB cells, resulting in stable cycling up to 27 cycles with 80% capacity retention. This study highlights the potential of us-ing LiDFOB salt as a way to improve the performance of AFLMBs.